CN202812154U - Automatic anti-backlash servo retarding mechanism - Google Patents
Automatic anti-backlash servo retarding mechanism Download PDFInfo
- Publication number
- CN202812154U CN202812154U CN 201220330456 CN201220330456U CN202812154U CN 202812154 U CN202812154 U CN 202812154U CN 201220330456 CN201220330456 CN 201220330456 CN 201220330456 U CN201220330456 U CN 201220330456U CN 202812154 U CN202812154 U CN 202812154U
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- gearwheel
- screw
- gear
- axle
- small gear
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Abstract
An automatic anti-backlash servo retarding mechanism comprises two coaxial dual gears, each of the pinions of the two dual gear meshes with a end main gear or a rack, each of the big gears of the two dual gear meshes with an input pinion, either the end main gear or the rack or the input pinion is a helical gear, an axial loading mechanism is arranged between the big gears of the two dual gear or a big gear of the two dual gear and a shell, the loading mechanism may be a spring, an oil cylinder, an air cylinder or a combination of an electromagnet and a spring and the axial force of the loading mechanism meshes with the helical gear to turn into anti-backlash pressure of the pinions of the two dual gears to the end main gear or to the tooth surface of the rack, so that the backlash between the gear pair in the transmission chain can be removed automatically during the service cycle and repeatability and positioning accuracy of the CNC (Computerized Numerical Control) machinery can be improved.
Description
Technical field
The present invention relates to a kind of reduction gears mechanism, slowing down in particular for actuating motor increases square, and actuation movement mechanism makes the accurate reducing gear that moves and locate.
Background technique:
Existing servo deceleration mechanism all exists certain backlass or return difference, such as actuating motor Special precision planetary reducer, the backlass that has the 1-5 angle to divide, such as harmonic speed reducer, the return difference that general warranty 1-2 divides at the angle, this precision can guarantee general application, but is used for the precision positioning of lathe, or is used for engraving machine and carries out fine relief processing and then can not meet the demands.
Summary of the invention:
It is the deficiency of avoiding the existence of above-mentioned prior art that the present invention will deal with problems, a kind of new servo deceleration mechanism is provided, this reducing gear can be eliminated the gap between the Transmitted chains gear joint automatically in life cycle, thereby greatly improves repeatability and the Location accuracy of numerical control device.
To achieve the object of the present invention, the present invention adopts following technological scheme.
The present invention has following advantage:
The gap between the Transmitted chains gear joint can be eliminated automatically by servo deceleration of the present invention mechanism in life cycle, thereby greatly improves repeatability and the Location accuracy of numerical control device.
Description of drawings:
Fig. 1 is the sectional drawing of the spring-loading automatic anti-backlash servo deceleration of the present invention mechanism scheme 2.
Fig. 2 is the sectional drawing of the automatic anti-backlash servo deceleration mechanism of adjustable spring loading force of the present invention.
The sectional drawing of Fig. 3 automatic anti-backlash servo deceleration mechanism scheme 3 that to be the present invention load with gas-liquid.
The sectional drawing of Fig. 4 automatic anti-backlash servo deceleration mechanism scheme 4 that to be the present invention load with electromagnetic force.
The sectional drawing of Fig. 5 another structure of automatic anti-backlash servo deceleration mechanism that to be the present invention load with gas-liquid.
Fig. 6 is the present invention is used for the big internal gear transmission with the automatic anti-backlash servo deceleration mechanism of gas-liquid loading sectional drawing.
Drawing reference numeral: 1 terminal gearwheel or tooth bar, 2 small gears, 3 axles, 4 fore bearings, 5 rear bearings, 6 housings, 7 gearwheels, 8 input small gears, 10 axles, 11 second small gears, 12 gearwheels, 14 axial load maintainers, the 14a spring, the 14b confined space, the 14c bulge loop, the 14d seal ring, the 14e aperture, the 14f seal ring, the 14g swivel coupling, the 14j electromagnet, the 14k coil, the 14l electromagnetic core, the 15a screw, the 15b fastening screw nut, 16 pressure regulating screws, the 16a screw plug, the 16b lock screw, the 16c screw plug, 18 pipelines, 19 pressure regulator valves, 20 pressure sources, 21 cables, 22 amplifiers, 23 power supplys, 24 servo drivers or control system.
Embodiment:
, be described further the specific embodiment of the present invention below in conjunction with accompanying drawing
Such as Fig. 1-shown in Figure 6, a kind of automatic anti-backlash servo deceleration mechanism comprises terminal gearwheel or tooth bar (1), small gear (2), axle (3), fore bearing (4), rear bearing (5), housing (6), gearwheel (7), input small gear (8); Axle (3) is installed on the housing (6) by fore bearing (4), rear bearing (5), small gear (2) and gearwheel (7) are coaxial to be cemented on the axle (3), small gear (2) and terminal gearwheel or tooth bar (1) engagement, gearwheel (7) and input small gear (8) engagement.It is characterized in that: also have an axle (10) to be inserted in coaxially axle (3) endoporus (such as Fig. 1) or to be enclosed within axle (3) cylindrical (such as Fig. 5), coaxial axle (10) two ends that are cemented in of second small gear (11) and gearwheel (12), gearwheel (12) also meshes with little input gear (8), the second small gear (11) also meshes with terminal gearwheel or tooth bar (1), in terminal gearwheel or tooth bar (1) and the small gear (8), have at least one to be helical teeth, axle (10), the second small gear (11), the combination of gearwheel (12), relative axle (3) axial float certain distance, between gearwheel (12) and gearwheel (7) or housing (6), be provided with an axial load maintainer (14).
As shown in Figure 1, described axial load maintainer (14) is spring (14a), is fixing loading spring such as Fig. 1 medi-spring 14a.In order in assembling, to be convenient to make gear (2), (11) to enter engagement with terminal gearwheel or tooth bar (1), be provided with screw (15a), with with screw (15a) Compress Spring (14a), make gear (2), (11) easily and terminal gearwheel or tooth bar (1) realization engagement during assembling.
As shown in Figure 3, described axial load maintainer (14) is an oil cylinder or cylinder, it is by gearwheel (7), gearwheel (12) and bulge loop (14c), seal ring (14d), a formation confined space (14b), this space is through aperture (14e), seal ring (14f), communicates with swivel coupling (14g).Swivel coupling (14g) by the road (18), pressure regulator valve (19) communicates with pressure source (20).Here spring (14a) is reloading spring, pressure is less, and by gearwheel (7), gearwheel (12) and bulge loop (14c), seal ring (14d), the oil cylinder or the cylinder that consist of are main load maintainers, on-load pressure is controlled by pressure regulator valve (19), both can be by the speed of operator according to equipment moving, acceleration, load control, also can be by program or the coherent signal control of motor servo driver torque signals and numerical control system, with guarantee gear (2) and tooth bar or gearwheel (1) all the time single face contact, crack pressure minimum guarantees again on average to disappear in life cycle.
As shown in Figure 4, described axial load maintainer (14) is electromagnet; It is made of the outer utmost point (14j) of electromagnet, coil (14k), electromagnetic core (141); Coil terminals is by cable (21), and amplifier (22) and power supply (23) and servo driver or control system (24) link to each other.Here spring (14a) also is reloading spring, and pressure is less.Core wheel (12a) electrician's mild steel or the low carbon steel manufacturing of the outer utmost point (14j) of electromagnet, electromagnetic core (14l), gearwheel (12).Similar with scheme 3, the electric current of electromagnet, be that on-load pressure is controlled by amplifier, both can be by speed, acceleration, the load control of operator according to equipment moving, also can be by program or the coherent signal control of motor servo driver torque signals and numerical control system, with guarantee gear (2) and tooth bar or gearwheel (1) all the time single face contact, crack pressure minimum guarantees again on average to disappear in life cycle.
Fig. 6 is that the present invention is used for the application example that major diameter internal gear zero-clearance drives.
Again as shown in Figure 1 and Figure 2, reducing gear of the present invention is provided with gear teeth aligning guide, so that assembling.This mechanism by described gearwheel (12) is divided into wheel rim (12), core wheel (12a) is realized, and connects with M screw (12b), the hole of wearing screw (12b) on the core wheel (12a) should be waist shaped hole.The radial location of corresponding screw (12b) is shaped with a screw and is screwed with screw plug (12c) and implements alignment function in order to back out screw plug on the housing, and operation is complete screws on screw plug with oil-leakage-prevention.
And for example shown in Figure 2, reducing gear of the present invention is provided with N pressure regulating screw (16), the radial location of corresponding screw (16) is shaped with a screw and is screwed with screw plug (16a) on the housing, also be provided with N lock screw (16b), the radial location of corresponding lock screw (16b) is shaped with a screw and is screwed with screw plug on the housing
(16c), so that assembling, and adjust afterwards the pressure of spring (14a) in assembling, crack pressure namely disappears, and lock adjustment screw (16) does not make and can become flexible after adjustment, screw plug (16a), screw plug (16c) are convenient operation, and screw on screw plug with oil-leakage-prevention at end of operation.
Claims (7)
1. an automatic anti-backlash servo deceleration mechanism comprises terminal gearwheel or tooth bar (1), small gear (2), axle (3), fore bearing (4), rear bearing (5), housing (6), gearwheel (7), inputs small gear (8); Axle (3) is by fore bearing (4), rear bearing (5) is installed on the housing (6), small gear (2) and gearwheel (7) are coaxial to be cemented on the axle (3), small gear (2) and terminal gearwheel or tooth bar (1) engagement, gearwheel (7) and input small gear (8) engagement, it is characterized in that: an axle (10) is inserted in coaxially axle (3) endoporus or is enclosed within axle (3) cylindrical, coaxial axle (10) two ends that are cemented in of second small gear (11) and gearwheel (12), gearwheel (12) also meshes with little input gear (8), the second small gear (11) also meshes with terminal gearwheel or tooth bar (1), in described terminal gearwheel or tooth bar (1) and the small gear (8), have at least one to be helical teeth, axle (10), the second small gear (11), the combination of gearwheel (12), relative axle (3) axial float certain distance, between gearwheel (12) and gearwheel (7) or housing (6), be provided with an axial load maintainer (14).
2. by the described automatic anti-backlash servo deceleration mechanism of claim 1, it is characterized in that: described axial load maintainer (14) is spring (14a).
3. by the described automatic anti-backlash servo deceleration mechanism of claim 1, it is characterized in that: described axial load maintainer (14) is an oil cylinder or cylinder, it is by gearwheel (7), gearwheel (12) and bulge loop (14c), seal ring (14d), a formation confined space (14b), this space is through aperture (14e), seal ring (14f), communicate with swivel coupling (14g), swivel coupling (14g) by the road (18), pressure regulator valve (19) communicates with pressure source (20).
4. by the described automatic anti-backlash servo deceleration mechanism of claim 1, it is characterized in that: described axial load maintainer (14) is electromagnet; It is made of electromagnet (14j), coil (14k), electromagnetic core (14l); Coil is by cable (21), and amplifier (22) and power supply (23) and servo driver or control system (24) link to each other.
5. by the described automatic anti-backlash servo deceleration mechanism of claim 1, it is characterized in that: be provided with gear teeth aligning guide, this mechanism by described gearwheel (12) is divided into wheel rim (12), core wheel (12a) is realized, wheel rim (12) and core wheel (12a) connect with a plurality of screws (12b), and the radial location of corresponding screw (12b) is shaped with a screw and is screwed with screw plug (12c) on the housing.
6. by the described automatic anti-backlash servo deceleration mechanism of claim 2, it is characterized in that: corresponding shaft on the housing (3) position of center line is provided with screw (15a), and fastening screw nut (15b).
7. by the described automatic anti-backlash servo deceleration mechanism of claim 2, it is characterized in that: be provided with N pressure regulating screw (16), the radial location of corresponding screw (16) is shaped with a screw and is screwed with screw plug (16a) on the housing, also be provided with N lock screw (16b), the radial location of corresponding lock screw (16b) is shaped with a screw and is screwed with screw plug (16c) on the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220330456 CN202812154U (en) | 2012-06-27 | 2012-06-27 | Automatic anti-backlash servo retarding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220330456 CN202812154U (en) | 2012-06-27 | 2012-06-27 | Automatic anti-backlash servo retarding mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202812154U true CN202812154U (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220330456 Expired - Fee Related CN202812154U (en) | 2012-06-27 | 2012-06-27 | Automatic anti-backlash servo retarding mechanism |
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| CN (1) | CN202812154U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878278A (en) * | 2012-06-27 | 2013-01-16 | 邵文远 | Servo speed-reducing mechanism capable of automatically eliminating clearance |
| CN104057346A (en) * | 2014-06-26 | 2014-09-24 | 沈阳化工大学 | Bevel gear gap elimination device |
| CN104633076A (en) * | 2013-11-15 | 2015-05-20 | 武汉重型机床集团有限公司 | Coaxial two-gear gap elimination device |
-
2012
- 2012-06-27 CN CN 201220330456 patent/CN202812154U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878278A (en) * | 2012-06-27 | 2013-01-16 | 邵文远 | Servo speed-reducing mechanism capable of automatically eliminating clearance |
| CN104633076A (en) * | 2013-11-15 | 2015-05-20 | 武汉重型机床集团有限公司 | Coaxial two-gear gap elimination device |
| CN104057346A (en) * | 2014-06-26 | 2014-09-24 | 沈阳化工大学 | Bevel gear gap elimination device |
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Addressee: Shao Wenyuan Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice |
Addressee: Shao Wenyuan Document name: Notification of Termination of Patent Right |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20170627 |