CN101349339A - Transmission shaft structure - Google Patents

Transmission shaft structure Download PDF

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Publication number
CN101349339A
CN101349339A CNA2007101305806A CN200710130580A CN101349339A CN 101349339 A CN101349339 A CN 101349339A CN A2007101305806 A CNA2007101305806 A CN A2007101305806A CN 200710130580 A CN200710130580 A CN 200710130580A CN 101349339 A CN101349339 A CN 101349339A
Authority
CN
China
Prior art keywords
platform
transmission shaft
slider
nut
screw rod
Prior art date
Application number
CNA2007101305806A
Other languages
Chinese (zh)
Inventor
杨天德
廖洪佐
陈鸿杰
Original Assignee
旺矽科技股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 旺矽科技股份有限公司 filed Critical 旺矽科技股份有限公司
Priority to CNA2007101305806A priority Critical patent/CN101349339A/en
Publication of CN101349339A publication Critical patent/CN101349339A/en

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Abstract

The invention is a driving shaft structure, which comprises a screw bolt and a sliding piece which is coaxially arranged with the screw bolt, the sliding piece is penetrated in a sleeve piece, the screw bolt is rotated by driving of a motor, can perform linear displacement which is parallel to the axial direction of the screw bolt, and can synchronously drive the sliding piece to rotate and parallel to the linear displacement of the axial direction of the sliding piece in the sleeve piece, one end of the sliding piece is connected with a platform, the sliding piece drives the platform to move and replace the structure of a traditional sliding seat and a sliding rail, because the sliding piece is integrally and coaxially arranged with the screw bolt, the concentricity of the sliding piece and the screw bolt can be guaranteed, additionally, the driving shaft structure is high in accuracy, easy in assemble, maintenance, adjustment or changing parts, and can reduce the occupied space.

Description

Transmission shaft structure

Technical field

The present invention relates to a kind of transmission shaft structure, be meant a kind of transmission shaft especially slider and the one-body molded setting of screw coaxial.

Background technique

Generally be used for controlling the driving mechanism of machine table or detection platform linear displacement, mainly be by drive motor, screw rod and slide rail constitute, see also TaiWan, China application for a patent for invention case shown in Figure 1 number No. 93110783 " IC detection device (two) ", described IC detection device has an elevator mechanism, it is at support 46, a side of 56 is provided with two vertical slides 462,562 and one swivel nut 463,563, to be assembled in vertical slide rail 47 respectively, 57 with longitudinal screw 48, on 58, and longitudinal screw 48,58 by belt (among the figure not label) respectively by motor 49,59 drive, when described motor 49,59 drive described longitudinal screw 48, during 58 rotations, can drive and be installed in described support 46,56 with vertical slide 462,562 at slide rail 47, make the shift reciprocately of Z direction (being Vertical direction) on 57, the described IC detection device traversing structure of arranging in pairs or groups in addition, its member is to make flowing mode similar to described elevator mechanism, different place only is that its screw rod and slide rail direction are horizontal-extending (vertical with the direction of aforementioned elevator mechanism), will not describe in detail at this.

See also shown in Figure 2 again, TaiWan, China application for a patent for invention case number No. 88117649 " flat display board machines ", this case discloses the driving mechanism of another kind of detection platform linear displacement, its board 20 has a pedestal 21, on described pedestal 21, be provided with a working platform 30, described working platform 30 comprises two X-axis slide rails 311, on described two X-axis slide rails 311, be provided with an X-axis substrate 31, described X-axis substrate 31 bottoms are provided with a joint seat 314, and be linked in an X-axis ball screw 313 by a ball nut 315, described X-axis ball screw 313 is to drive rotatable by a motor 312, so drive described working platform 30 and do the X-axis displacement, and drive the driving mechanism that described working platform 30 does the Y-axis displacement is by two Y-axis slide rails 321, one Y-axis substrate 32, one joint seat 324, one ball nut 325, one Y-axis ball screw 323, and the motor 322 that drives described Y-axis ball screw 323 constitutes, so drive described working platform 30 and do the Y-axis displacement, making the device that the Z axle moves as for being used for driving described working platform 30, then is to adopt the pneumatic cylinder (not shown).

More above-mentioned two existing structures as can be known, can pass through belt, transmission component such as chain or gear links the pto and the screw rod (structure as shown in Figure 1) of drive motor, also can be with screw rod and the coaxial setting of motor power output shaft (structure as shown in Figure 2), also as seen screw thread is set on the market at the motor power output shaft, with direct conduction power, suitably reduction volume and institute thereof take up space, right aforementioned structure all is the relations at motor and screw rod, and screw rod is always two independent components that separate setting with slide rail, therefore, when adjustment platform displacement validity, screw rod and slide rail are organized in adjustment simultaneously more, and with the slide of slide rail collocation, slide block, members such as joint seat, especially the parallelism of screw rod and slide rail, its adjustment mode is difficult for, and must expend a large amount of artificial and times, and because of its member complexity, not only take up space, and it is difficult with maintenance to change spare part.

Mandatory declaration is in addition, existing structure shown in Figure 2 is to adopt pneumatic cylinder to control described working platform 30 to do the upper and lower displacement of Z axle, though this driving mode is habitually practised by general dealer, and described pneumatic cylinder can oil hydraulic cylinder replaces, so the shortcoming with air pressure or oil pressure actuated is that its start speed is slow, the phenomenon that distant control often has terminal pressure to reduce, and oil pressure is easily because of the ambient temperature effect leakage of oil, cause energy dissipation, in addition, its topmost drawback is, can't accurately locate in the neutral position, therefore, at non-section type height adjuster or equipment, the mode that must adopt aforementioned screw rod to cooperate still with slide rail.

Summary of the invention

Because the disappearance of prior art; main purpose of the present invention is to propose a kind of transmission shaft structure, with slider and the one-body molded setting of screw coaxial, is replaced the structure of traditional slide and slide rail by described slider; can guarantee slider and screw rod concentricity, improve the precision height.

Secondary objective of the present invention is to propose a kind of transmission shaft structure, and it is simple in structure, be easy to assembling, maintenance, adjustment or renewal part, and can reduce institute and take up space.

For achieving the above object, the present invention proposes a kind of transmission shaft structure, and it includes:

One screw rod, it is rotatable by motor driven, and can make to be parallel to the linear displacement of described screw axial; And a slider, it is and described screw coaxial setting, and described screw rod and described slider be one-body molded, described slider is to be located in the external member; So, when screw rod rotates, can drive synchronously that described slider rotates and parallel its axially in the displacement of described external member internal linear.

Preferably, described slider is the rectangular cylindrical body with certain-length, and described external member is a sliding sleeve.

Preferably, described sliding sleeve is to be positioned on the board.

Preferably, described screw rod outer cover is provided with a nut, described nut is that the pto by driving component and described motor is connected, described motor outputs power and drives described nut rotation via described driving component, drives described screw rod by described nut again and rotates and can do to be parallel to its axial linear displacement.

Preferably, described nut is a ball nut.

Preferably, described nut is to be positioned on the board.

Preferably, described driving component can be belt, chain one of them or its combination.

Preferably, it more comprises a platform, and it has the supporting plane of a loaded object, and described platform is that the end with described slider is connected, and the supporting plane that axially is perpendicular to described platform of described screw rod.

Preferably, described platform and described slider are mutual pivot joints, and described platform can't be rotated with described slider.

Preferably, be provided with bearing between described platform and the described slider.

For achieving the above object, the technical solution used in the present invention also comprises:

A kind of platform with transmission shaft structure is characterized in that it includes: a platform, and it has a supporting plane and is used for loaded object; One transmission shaft structure is arranged on described platform bottom, and it comprises: at least one screw rod, and it axially is perpendicular to the supporting plane of described platform, and described screw rod is rotatable by a motor driven, and can make to be parallel to the linear displacement of described screw axial; And at least one slider, it is and described screw coaxial setting, and described screw rod and described slider be one-body molded, described slider is to be located in the external member, and an end of described slider is and described platform bottom links.

Preferably, described slider is the rectangular cylindrical body with certain-length, and described external member is a sliding sleeve.

Preferably, described sliding sleeve is to be positioned on the board.

Preferably, described screw rod outside has screwed togather a nut, described nut is that the pto by driving component and described motor is connected, described motor outputs power and drives described nut rotation via described driving component, drives described screw rod by described nut again and rotates and can do to be parallel to its axial linear displacement.

Preferably, described nut is a ball nut.

Preferably, described nut is to be positioned on the board.

Preferably, described driving component is one of them or its combination of belt, chain.

Preferably, described platform and described slider are mutual pivot joints.

Preferably, be provided with bearing between described platform and the described slider.

Compared with prior art; the beneficial effect that the present invention has is: the structure that is replaced traditional slide and slide rail by described slider; can guarantee the concentricity of slider and screw rod; the precision height; be easy to assembling, maintenance, adjustment or renewal part; and can reduce institute and take up space, be useful in the machine table of linear displacement or detection platform and use and make association area, be particularly suited for driving the macrotype platform linear displacement

Description of drawings

Fig. 1 and Fig. 2 are the structural representations of existing two kinds of driving mechanisms;

Fig. 3 is the structural representation of a preferred embodiment of the present invention;

Fig. 4 is the structural representation of another preferred embodiment of the present invention.

Description of reference numerals: 10-transmission shaft structure; The 11-screw rod; The 12-slider; The 13-ball nut; The 131-belt; The 14-drive motor; The 141-pto; The 15-external member; The 151-ball; The 20-platform; The 21-supporting plane; The 22-bearing; The 30-board; 31,32-location piece; The Lc-axis.

Embodiment

See also shown in Figure 3, transmission shaft structure 10 proposed by the invention, it mainly comprises a screw rod 11 and a slider 12, described screw rod 11 is provided with in vertical direction, described slider 12 is the one-body molded tops that are arranged on described screw rod 11 of coaxial line Lc, the top of described slider 12 is to be articulated with a platform 20, described platform 20 has a supporting plane 21 that is used for loaded object, the axis Lc of described screw rod 11, slider 12 is perpendicular to described supporting plane 21, also promptly, described supporting plane 21 is to be horizontally disposed with; Secondly, outside described screw rod 11, screwed togather a ball nut 13, described ball nut 13 is to be positioned on the board 30 by location piece 31, and be connected with the pto 141 of a drive motor 14 by a belt 131, as well known to the skilled person, described belt 131 also can be chain or other have the driving component of identical transmission agency.

When described drive motor 14 rotates, power can be driven described belt 131 by described pto 141 outputs rotates, and then drive described ball nut 13 and rotate, because described ball nut 13 is to screw togather with described screw rod 11, and described ball nut 13 is to be positioned on the board 30, therefore can drive that described screw rod 11 rotates and in described ball nut 13 along axis Lc linear displacement, at the same time, described screw rod 11 can drive that described slider 12 rotates and along axis Lc linear displacement, again because described slider 12 is to be connected with described platform 20, therefore can drive described platform 20 moves up and down, mandatory declaration be, between described slider 12 and described platform 20, be provided with bearing 22, therefore, described platform 20 can not rotate along with the rotation of described slider 20, if but described bearing 22 is not set, and when one group of transmission shaft structure 10 only is set, as shown in Figure 4, then can drive described platform 20 rotation and upper and lower displacements, the motor of the described screw rod 11 of display driver not in Fig. 4 is can determine portion of setting within it or outside according to the size of board 30 because of motor.

Moreover, as shown in Figure 3, be provided with an external member 15 in described slider 12 outer cover, described external member 15 is to be positioned on the described board 30 by location piece 32,12 of described sliders are located in the described external member 15, described external member 15 can be diagram inside and has the sliding sleeve form of ball 151, its role is to support described slider 12, the stability that provides it to move, as for the fit system of described slider 12 with described external member 15, with general habitual form, described slider 12 is the rectangular cylindrical bodys with certain-length, and described external member 15 then is cylindric.

In sum; transmission shaft structure provided by the invention; it is characterized in that slider 12 and screw rod 11 coaxial one-body molded settings, replace the structure of traditional slide and slide rail, can guarantee the concentricity of slider 12 and screw rod 11 by described slider; the precision height; especially be applied in the driving macrotype platform, for example during the detection platform of large scale liquid crystal display device, in the platform bottom many groups be set simultaneously; not only be easy to assembling, maintenance, adjustment parallelism or renewal part, and can reduce the institute take up space.

More than explanation is just illustrative for the purpose of the present invention, and it is nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited, can make many modifications, variation or equivalence, but but all will fall within the claim restricted portion of the present invention.

Claims (19)

1. transmission shaft structure is characterized in that it includes:
One screw rod, it is rotatable by motor driven, and can make to be parallel to the linear displacement of described screw axial; And
One slider, it is and described screw coaxial setting, and described screw rod and described slider be one-body molded, described slider is to be located in the external member.
2. transmission shaft structure according to claim 1 is characterized in that: described slider is rectangular cylindrical body, and described external member is a sliding sleeve.
3. transmission shaft structure according to claim 2 is characterized in that: described sliding sleeve is to be positioned on the board.
4. transmission shaft structure according to claim 1, it is characterized in that: described screw rod outside has screwed togather a nut, described nut is that the pto by driving component and described motor is connected, described motor outputs power and drives described nut rotation via described driving component, drives described screw rod by described nut again and rotates and can do to be parallel to its axial linear displacement.
5. transmission shaft structure according to claim 4 is characterized in that: described nut is a ball nut.
6. transmission shaft structure according to claim 4 is characterized in that: described nut is to be positioned--on-the board.
7. transmission shaft structure according to claim 4 is characterized in that: described driving component is one of them or its combination of belt, chain.
8. transmission shaft structure according to claim 1, it is characterized in that: more comprise a platform, it has the supporting plane of a loaded object, and described platform is that the end with described slider is connected, and the supporting plane that axially is perpendicular to described platform of described screw rod.
9. transmission shaft structure according to claim 8 is characterized in that: described platform and described slider are mutual pivot joints.
10. transmission shaft structure according to claim 9 is characterized in that: be provided with bearing between described platform and the described slider.
11. the platform with transmission shaft structure is characterized in that it includes:
One platform, it has a supporting plane and is used for loaded object;
One transmission shaft structure is arranged on described platform bottom, and it comprises:
At least one screw rod, it axially is perpendicular to the supporting plane of described platform, and described screw rod is rotatable by a motor driven, and can make to be parallel to the linear displacement of described screw axial; And
At least one slider, it is and described screw coaxial setting, and described screw rod and described slider be one-body molded, described slider is to be located in the external member, and an end of described slider is and described platform bottom links.
12. the platform with transmission shaft structure according to claim 11 is characterized in that: described slider is rectangular cylindrical body, and described external member is a sliding sleeve.
13. the platform with transmission shaft structure according to claim 12 is characterized in that: described sliding sleeve is to be positioned on the board.
14. the platform with transmission shaft structure according to claim 11, it is characterized in that: described screw rod outside has screwed togather a nut, described nut is that the pto by driving component and described motor is connected, described motor outputs power and drives described nut rotation via described driving component, drives described screw rod by described nut again and rotates and can do to be parallel to its axial linear displacement.
15. the platform with transmission shaft structure according to claim 14 is characterized in that: described nut is a ball nut.
16. the platform with transmission shaft structure according to claim 14 is characterized in that: described nut is to be positioned on the board.
17. the platform with transmission shaft structure according to claim 14 is characterized in that: described driving component is one of them or its combination of belt, chain.
18. the platform with transmission shaft structure according to claim 11 is characterized in that: described platform and described slider are mutual pivot joints.
19. the platform with transmission shaft structure according to claim 18 is characterized in that: be provided with bearing between described platform and the described slider.
CNA2007101305806A 2007-07-18 2007-07-18 Transmission shaft structure CN101349339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2007101305806A CN101349339A (en) 2007-07-18 2007-07-18 Transmission shaft structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007101305806A CN101349339A (en) 2007-07-18 2007-07-18 Transmission shaft structure

Publications (1)

Publication Number Publication Date
CN101349339A true CN101349339A (en) 2009-01-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007101305806A CN101349339A (en) 2007-07-18 2007-07-18 Transmission shaft structure

Country Status (1)

Country Link
CN (1) CN101349339A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103246060A (en) * 2012-12-28 2013-08-14 清华大学 Deformation mirror
CN103548707A (en) * 2013-11-21 2014-02-05 范爱苏 Worm-type feed supply device with screw caps and position sensors
CN103548706A (en) * 2013-11-21 2014-02-05 孟姣姣 Square feed supply device with screw caps and limiting nuts
CN103548708A (en) * 2013-11-21 2014-02-05 黄娟娟 Triangular feed supply device with internal spline rings and limiting nuts
CN103548704A (en) * 2013-11-21 2014-02-05 黄三甦 Rectangular feed supply device with internal spline rings and limiting nuts
CN103548705A (en) * 2013-11-21 2014-02-05 俞群涛 Square feed supply device with screw caps and position sensors
CN103563762A (en) * 2013-11-21 2014-02-12 范爱苏 Rectangular feed supplying device provided with screw caps and position sensors
CN103563761A (en) * 2013-11-21 2014-02-12 张霞 Triangular feed supplying device provided with inner spline rings and position sensors
CN103583392A (en) * 2013-11-21 2014-02-19 范盛林 Oblong fodder feeding device with internal spline rings and position sensors
CN103583386A (en) * 2013-11-21 2014-02-19 俞升洋 Worm type fodder feeding device with internal spline ring and limiting nut
CN103583393A (en) * 2013-11-21 2014-02-19 孙旭东 Square fodder feeding device with internal spline ring and position sensor
CN103598109A (en) * 2013-11-21 2014-02-26 孟祖钢 Triangular fodder feeder with threaded nuts and limit nuts

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103246060A (en) * 2012-12-28 2013-08-14 清华大学 Deformation mirror
CN103563761A (en) * 2013-11-21 2014-02-12 张霞 Triangular feed supplying device provided with inner spline rings and position sensors
CN103548706A (en) * 2013-11-21 2014-02-05 孟姣姣 Square feed supply device with screw caps and limiting nuts
CN103548708A (en) * 2013-11-21 2014-02-05 黄娟娟 Triangular feed supply device with internal spline rings and limiting nuts
CN103548704A (en) * 2013-11-21 2014-02-05 黄三甦 Rectangular feed supply device with internal spline rings and limiting nuts
CN103548705A (en) * 2013-11-21 2014-02-05 俞群涛 Square feed supply device with screw caps and position sensors
CN103563762A (en) * 2013-11-21 2014-02-12 范爱苏 Rectangular feed supplying device provided with screw caps and position sensors
CN103548707A (en) * 2013-11-21 2014-02-05 范爱苏 Worm-type feed supply device with screw caps and position sensors
CN103583392A (en) * 2013-11-21 2014-02-19 范盛林 Oblong fodder feeding device with internal spline rings and position sensors
CN103583386A (en) * 2013-11-21 2014-02-19 俞升洋 Worm type fodder feeding device with internal spline ring and limiting nut
CN103583393A (en) * 2013-11-21 2014-02-19 孙旭东 Square fodder feeding device with internal spline ring and position sensor
CN103598109A (en) * 2013-11-21 2014-02-26 孟祖钢 Triangular fodder feeder with threaded nuts and limit nuts
CN103548707B (en) * 2013-11-21 2014-11-12 嵊州市百恩贸易有限公司 Worm-type feed supply device with screw caps and position sensors
CN103563761B (en) * 2013-11-21 2014-12-10 张霞 Triangular feed supplying device provided with inner spline rings and position sensors
CN103583386B (en) * 2013-11-21 2015-01-21 俞升洋 Worm type fodder feeding device with internal spline ring and limiting nut

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