CN102518765A - Double-speed transmission mechanism for precision measuring instrument - Google Patents
Double-speed transmission mechanism for precision measuring instrument Download PDFInfo
- Publication number
- CN102518765A CN102518765A CN2011104151346A CN201110415134A CN102518765A CN 102518765 A CN102518765 A CN 102518765A CN 2011104151346 A CN2011104151346 A CN 2011104151346A CN 201110415134 A CN201110415134 A CN 201110415134A CN 102518765 A CN102518765 A CN 102518765A
- Authority
- CN
- China
- Prior art keywords
- transmission
- feed rod
- nut
- transmission speed
- handwheel
- 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.)
- Pending
Links
Images
Abstract
The invention provides a double-speed transmission mechanism capable of rapidly switching the transmission speed, which has simple structure, is convenient to operate and can be widely applied to transmission of a precision measuring instrument. The double-speed transmission mechanism mainly structurally comprises a transmission polished bar, a transmission speed selection rod, a transmission polished bar nut, a transmission operation hand wheel and a transmission speed selection hand wheel. The transmission polished bar nut consists of a nut bracket, three bearings and two limit blocks. The transmission speed selection rod and the transmission speed selection hand wheel are used for regulating the compaction and release between the three bearings in the transmission polished bar nut and the transmission polished bar and controlling to arrange the transmission speed selection hand wheel of the transmission speed selection rod at the lateral rear part of the transmission operation hand wheel. When a compaction force is formed between the bearings in the transmission polished bar nut and the transmission polished bar, the low-speed transmission in a small range can be realized; and when no compaction force is formed between the bearings in the transmission polished bar nut and the transmission polished bar, the high-speed transmission in a big range can be realized.
Description
Technical field
The present invention relates to a kind of two speed transmissions mechanism that can switch fast, in particular for the two speed transmissions mechanism of fine measuring instrument.
Background technique
In the highi degree of accuracy dimension survey field of precision workpiece, not only need realize with accurate trickle be aligned to purpose among a small circle in transmission at a slow speed, also usually need on a large scale, realize quick transmission simultaneously, the working efficiency when improving big workpiece calibration.In order to satisfy this demand, common mode is a kind of driving mechanism of realizing two kinds of transmission speeds of design.
In the fine measuring instrument of existing use feed rod friction driving, common a kind of means are design one poles on feed rod nut sidewall, can realize compressing and discharge between feed rod nut and the feed rod through this pole.Be in impaction state between feed rod nut and the feed rod in the ordinary course of things, the operator can carry out accurately transmission at a slow speed through rotating the terminal operation handwheel of feed rod; And during the fast moving in needs are realized on a large scale, can draw back the pole on the feed rod nut sidewall by hand, and discharge the clamping force between feed rod nut and the feed rod, move the fast moving of implementation platform on a large scale then with regard to available hand propulsion instrument platform.
The advantage of this scheme is that mechanism is simple, realization is easy, but shortcoming is also very obvious.Because strut fixation is on the feed rod nut, for guaranteeing releasing mechanism, and consider the overall aesthetics of instrument not by misoperation, pole is arranged on the downside of feed rod nut usually, and this just causes very inconvenience of operation.When needing frequently at transmission fast and the big workpiece calibration that switches between the transmission at a slow speed; Will be repeatedly at operation handwheel and the enterprising line operate of pole; Make measuring speed to improve, and operator's working strength is big, fatiguability, causes measuring accuracy to can not get guaranteeing indirectly.
To this situation; The invention provides a kind of nut is compressed with releasing mechanism and be arranged on the two speed transmissions mechanism of operating the handwheel proceeds posterolateral, can realize the transmission speed switching apace, and the speed handover operation is convenient; One hand can be accomplished, and can significantly improve operating efficiency, reduce working strength.Simultaneously, this drive mechanism also has advantages such as composition is simple, beautiful shape.
Summary of the invention
The invention provides a kind of two speed transmissions mechanism that can switch transmission speed fast, simple in structure, easy to operate, can be widely used in the transmission of fine measuring instrument.
Two speed transmissions of the present invention mechanism has increased and can realize compressing feed rod nut and transmission feed rod on the basis of common feed rod slip gear, also can discharge the mechanism of impacting force between feed rod nut and transmission feed rod.Main structure of the present invention comprises transmission feed rod, transmission speed selector, transmission feed rod nut, transmission operation handwheel, transmission speed selection handwheel.Transmission feed rod nut then is made up of nut support, three bearings and two limiting stoppers.Transmission speed selector and transmission speed select handwheel to be used for regulating compressing and discharge between three bearings of transmission feed rod nut and the transmission feed rod.
When compressing between bearing in the transmission feed rod nut and the transmission feed rod; The rotation of transmission operation handwheel drives the transmission feed rod and rotates; The transmission feed rod drives three bearings by friction and rotates; Because bearing fixing is on transmission feed rod nut, drive transmission feed rod nut generation straight line motion thus, and then drive be fixed on the transmission feed rod nut by driven unit generation straight line motion.
When between bearing in the transmission feed rod nut and the transmission feed rod during no impacting force; Do not contact between bearing in the feed rod nut and the transmission feed rod; Transmission feed rod nut is in free state, and the operator can promote directly to be moved by driven unit, can realize interior fast moving on a large scale.
For realizing compressing and discharge between above-mentioned bearing and the transmission feed rod, increase by a transmission speed selector in parallel at the adjacency of transmission feed rod, control it through the transmission speed selector and compress and discharge relation.For easy to operate, select handwheel to be placed in the proceeds posterolateral of transmission operation handwheel the transmission speed of control transmission speed selector, the operator not only can carry out transmission control at a slow speed under the situation of one-handed operation like this, can also realize the switching of transmission speed.
Description of drawings
Fig. 1 is a two speed transmissions of the present invention mechanism overall schematic.
Fig. 2 is feed rod nut of the present invention and speed selection mechanism structure schematic representation.
Main structure is among the figure: 1-transmission operation handwheel, 2-transmission feed rod nut, 3-transmission feed rod, 4-transmission speed are selected handwheel, 5-transmission speed selector, 6-transmission bearing support, 11-nut support, 12-limiting stopper, 13-bearing.
Embodiment
Embodiments of the invention have been introduced a kind of two speed transmissions mechanism that can switch transmission speed fast that is applied on the fine measuring instrument.
Two speed transmissions of the present invention mechanism mainly is made up of slip gear, transmission speed selection mechanism, transmission bearing support [6].
Transmission bearing support [6] is used for whole slip gear and transmission speed selection mechanism are fixed on the pedestal of fine measuring instrument.Transmission bearing support [6] is divided into two relative parts, is respectively applied for the two ends of fixing whole driving mechanism.
Slip gear is operated handwheel [1], transmission feed rod nut [2] and transmission feed rod [3] by transmission and is formed.
Transmission operation handwheel [1] links to each other with transmission feed rod [3] end, and is positioned at the outside of a gear frame bearing support [6], and the rotation of transmission operation handwheel [1] can drive transmission feed rod [3] and rotate.
Transmission feed rod nut [2] is made up of nut support [11], three bearings [13] and two limiting stoppers [12].Nut support [11] adopts the frame structure of square frame shape; And at a lateral incision one opening; Inside is evenly distributed with three bearing fixing positions, and three bearings [13] are installed on these bearing fixing positions, and two limiting stoppers [12] are separately fixed on the outer wall of nut support [11] opening both sides.Nut support [11] adopts the 40Cr steel, and square frame shape structure possesses certain elasticity.
Be squeezed at nut support [11] opening, draw high, outside during external force such as top, a certain amount of deformation can take place in the framework of nut support [11], and is not damaged.This an amount of deformation can change the distance that is fixed between inner three bearings [13] of framework, thereby changes the impaction state between three bearings [13] and the transmission feed rod [3].
The cross section of transmission feed rod [3] is circular, and transmission feed rod [3] passes in the middle of three bearings [13] of transmission feed rod nut [2], and the axis of the axis of bearing [13] and transmission feed rod [3] forms an angle.When three bearings [13] compress transmission feed rod [3]; The rotation of transmission feed rod [3] drives bearing [13] by the friction between transmission feed rod [3] and the bearing [13] and rotates; Promote transmission feed rod nut [2] straight line motion takes place, and then drive and the relatively-stationary worktable generation of transmission feed rod nut [2] straight line motion.
Transmission speed selection mechanism mainly selects handwheel [4] and transmission speed selector [5] to form by transmission speed.
Transmission speed selects handwheel [4] to be connected with the end of transmission speed selector [5]; And be positioned at the outside of a gear frame bearing support [6]; And be positioned at homonymy with transmission operation handwheel [1], and be in the proceeds posterolateral of transmission operation handwheel [1], when the operator uses transmission operation handwheel [1]; Can move on to transmission speed easily and select handwheel [4] position, select handwheel [4] to control transmission speed.
Transmission speed selector [5] is fixed between two transmission bearing supports [6], and length is identical with transmission feed rod [3], and is on the parallel position with transmission feed rod [3], and transmission speed selector [5] is positioned in the middle of two limiting stoppers [12] of transmission feed rod nut [2].The sectional shape of transmission speed selector [5] is oval; And the minor axis diameter of transmission speed selector [5] cross section ellipse is less than the spacing of two limiting stoppers [12] under nature on the feed rod nut, and its major diameter is greater than the spacing of two limiting stoppers [12] under nature on the feed rod nut.
When transmission speed selects handwheel [4] to rotate; Driving transmission speed selector [5] rotates; Because the cross section of transmission speed selector [5] is oval, then changes the spacing of two the feed rod nut limiting stoppers [12] that are in transmission speed selector [5] both sides, thereby make the framework generation deformation of nut support [11]; Change the distance that is fixed between inner three bearings [13] of framework, and then change the impaction state between three bearings [13] and the transmission feed rod [3].
By embodiments of the invention, the operator under the situation of transmission one-handed operation, not only can carry out transmission control at a slow speed in measuring phase, can also realize the quick switching of transmission speed:
In among a small circle at a slow speed during transmission, the operator can compress under the situation of transmission feed rod at transmission feed rod nut, rotates transmission operation handwheel with one hand, realizes accurate localization at needs.
In this operating process; Can fast operator be moved on the transmission speed selection handwheel of transmission operation handwheel proceeds posterolateral; The rotation transmission speed selects handwheel can discharge transmission feed rod nut compressing the transmission feed rod for 90 °; Promote by the transmission worktable this moment again, just can realize interior fast moving on a large scale.
In this operating process, can rotate transmission speed once more and select 90 ° on handwheel, can compress transmission feed rod nut and transmission feed rod, whole transmission device is returned at a slow speed under the drive state.
Another benefit of these embodiments of the invention is, selects the sense of rotation of handwheel not have particular requirement to transmission speed, clockwise be rotated counterclockwise 90 ° of impaction states that all can change transmission feed rod nut to the transmission feed rod, improve ease for operation.
Claims (3)
1. the two speed transmissions mechanism of a fine measuring instrument; Be made up of slip gear, transmission speed selection mechanism, transmission bearing support [6], it is characterized in that: said slip gear is operated handwheel [1], transmission feed rod nut [2] and transmission feed rod [3] by transmission and is formed; Said transmission speed selection mechanism selects handwheel [4] and transmission speed selector [5] to form by transmission speed; Said transmission speed selects handwheel [4] and transmission to operate the homonymy that handwheel [1] is placed in transmission feed rod [3] end, and transmission speed selects handwheel [4] to be positioned at the proceeds posterolateral of transmission operation handwheel [1].
2. transmission feed rod nut as claimed in claim 1 [2] is characterized in that: said transmission feed rod nut [2] is made up of nut support [11], three bearings [13] and two limiting stoppers [12]; Said nut support [11] adopts the frame structure of square frame shape, and has a side opening, inside to be evenly distributed with three bearing fixing positions; Three bearings [13] are installed on the bearing fixing position of nut support [11], and the axis of bearing [13] and transmission feed rod [3] formation one angle; Two limiting stoppers [12] are separately fixed on the outer wall of nut support [11] opening both sides, do not receive under the situation of external force at two limiting stoppers [12], and three bearings [13] apply an impacting force to transmission feed rod [3].
3. transmission speed selector as claimed in claim 1 [5] is characterized in that: described transmission speed selector [5] selects handwheel [4] to be fixedly connected with transmission speed, and transmission speed selector [5] is identical with transmission feed rod [3] length, and parallel placement; Transmission speed selector [5] is positioned in the middle of two limiting stoppers [12] of transmission feed rod nut [2]; The sectional shape of transmission speed selector [5] is oval; Under the nature of feed rod nut upper cap nut support [11], the minor axis diameter of transmission speed selector [5] cross section ellipse is less than the spacing of last two limiting stoppers of transmission feed rod nut [2] [12], and its major diameter is greater than the spacing between two limiting stoppers [12]; Said transmission speed selects the rotation of handwheel [4] to drive transmission speed selector [5] rotation; Back down two limiting stoppers [12]; Change the opening of nut support [11], cause three bearings [13] not contact with transmission feed rod [3], transmission feed rod [3] and transmission feed rod nut [2] but between unrestricted motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104151346A CN102518765A (en) | 2011-12-14 | 2011-12-14 | Double-speed transmission mechanism for precision measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104151346A CN102518765A (en) | 2011-12-14 | 2011-12-14 | Double-speed transmission mechanism for precision measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102518765A true CN102518765A (en) | 2012-06-27 |
Family
ID=46289793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104151346A Pending CN102518765A (en) | 2011-12-14 | 2011-12-14 | Double-speed transmission mechanism for precision measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102518765A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470710A (en) * | 2013-09-29 | 2013-12-25 | 苏州天准精密技术有限公司 | Polished rod friction transmission mechanism used for precision measuring instrument |
| CN107954358A (en) * | 2017-11-11 | 2018-04-24 | 华强方特（芜湖）文化科技有限公司 | A kind of adjustable roller rope guide |
| CN111473097A (en) * | 2020-04-02 | 2020-07-31 | 铜陵帆捷智能测控科技有限责任公司 | High-efficiency external rolling type large-lead polished rod toothless nut |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4008929A (en) * | 1974-08-12 | 1977-02-22 | Henrik Gerner Olrik | Friction drive device |
| US20060156838A1 (en) * | 2005-01-05 | 2006-07-20 | Las Navas Garcia Jose M | Precision table |
| CN2833242Y (en) * | 2005-10-18 | 2006-11-01 | 贵阳新天光电科技有限公司 | External rolling type openable polished rod friction straight line movement driving mechanism |
| CN2931939Y (en) * | 2006-06-22 | 2007-08-08 | 周文斌 | Polish rod transmission rapid movement machanism |
| CN101825163A (en) * | 2010-05-24 | 2010-09-08 | 徐道定 | Friction linear transmission pair device |
| CN201858318U (en) * | 2010-10-19 | 2011-06-08 | 武汉耐霸数控科技有限公司 | Spiral lifting device of sliding rod |
-
2011
- 2011-12-14 CN CN2011104151346A patent/CN102518765A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4008929A (en) * | 1974-08-12 | 1977-02-22 | Henrik Gerner Olrik | Friction drive device |
| US20060156838A1 (en) * | 2005-01-05 | 2006-07-20 | Las Navas Garcia Jose M | Precision table |
| CN2833242Y (en) * | 2005-10-18 | 2006-11-01 | 贵阳新天光电科技有限公司 | External rolling type openable polished rod friction straight line movement driving mechanism |
| CN2931939Y (en) * | 2006-06-22 | 2007-08-08 | 周文斌 | Polish rod transmission rapid movement machanism |
| CN101825163A (en) * | 2010-05-24 | 2010-09-08 | 徐道定 | Friction linear transmission pair device |
| CN201858318U (en) * | 2010-10-19 | 2011-06-08 | 武汉耐霸数控科技有限公司 | Spiral lifting device of sliding rod |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470710A (en) * | 2013-09-29 | 2013-12-25 | 苏州天准精密技术有限公司 | Polished rod friction transmission mechanism used for precision measuring instrument |
| CN103470710B (en) * | 2013-09-29 | 2016-03-23 | 苏州天准科技股份有限公司 | A kind of polished rod friction driving mechanism for fine measuring instrument |
| CN107954358A (en) * | 2017-11-11 | 2018-04-24 | 华强方特（芜湖）文化科技有限公司 | A kind of adjustable roller rope guide |
| CN107954358B (en) * | 2017-11-11 | 2023-10-13 | 华强方特（芜湖）文化科技有限公司 | Adjustable roller rope guide |
| CN111473097A (en) * | 2020-04-02 | 2020-07-31 | 铜陵帆捷智能测控科技有限责任公司 | High-efficiency external rolling type large-lead polished rod toothless nut |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201307367Y (en) | Directional-rotation dial feeding device | |
| CN205166923U (en) | Get a glass manipulator | |
| CN102518765A (en) | Double-speed transmission mechanism for precision measuring instrument | |
| CN204396564U (en) | Air throttle water pipe bender | |
| CN209111320U (en) | A kind of automobile gear shift mounting plate die for processing | |
| CN202720162U (en) | Concrete test block compression-testing machine | |
| CN208688368U (en) | Flexible checking implement is used in a kind of production of clutch | |
| CN208051714U (en) | A kind of electronic bench vice | |
| CN201736966U (en) | Vehicle supporting device | |
| CN209335052U (en) | Automobile hub bearing outer ring processes turnover mechanism | |
| CN202673867U (en) | Double-cylinder oil cylinder of bending machine | |
| CN110762199A (en) | Planar motion gear shifting device of electric push rod transmission | |
| CN202438585U (en) | Double-toggle-lever punching machine | |
| CN201544120U (en) | Special speed-variable feeding device for grinding machine | |
| CN215625264U (en) | Industrial grabbing device | |
| CN204685876U (en) | A kind of novel high-precision stamping machine loading and unloading manipulator | |
| CN218375321U (en) | Concrete vibrating device | |
| CN203371351U (en) | Piston ring fixing structure of piston ring end face grinding device | |
| CN209090407U (en) | One kind is convenient for furniture movement and fixed support device | |
| CN203598734U (en) | Hot melt adhesive raw material mixing device | |
| CN202465484U (en) | Servo motor based fully-automatic tamping plant | |
| CN201711861U (en) | Grinder spindle sliding plate radial feed mechanism | |
| CN205725306U (en) | Motor-driven trapezoidal screw rod transmission linear motion structure | |
| CN203363564U (en) | Manually sliding platform device | |
| CN202618181U (en) | Tea rolling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120627 |