CN205654848U - Zero back clearance gear and use device's speed reducer - Google Patents
Zero back clearance gear and use device's speed reducer Download PDFInfo
- Publication number
- CN205654848U CN205654848U CN201620475548.6U CN201620475548U CN205654848U CN 205654848 U CN205654848 U CN 205654848U CN 201620475548 U CN201620475548 U CN 201620475548U CN 205654848 U CN205654848 U CN 205654848U
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- CN
- China
- Prior art keywords
- output shaft
- power shaft
- expansion
- back clearance
- helical gear
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a zero back clearance gear, including input shaft and output shaft, be provided with the skewed tooth wheelset on the input shaft, the skewed tooth wheelset include a plurality of each other support lean on and with input shaft axial sliding connection's input shaft helical gear, the shoulder is kept off to fixed being provided with on the input shaft of skewed tooth wheelset one side, and the opposite side is provided with the elastic mechanism, elastic mechanism one end is supported and is leaned on the skewed tooth wheelset, and the other end supports and leans on on a locknut, the locknut cover is established on the input shaft, the output shaft overcoat is equipped with the output shaft helical gear, output shaft helical gear and the oblique gear engagement of input shaft. This zero back clearance gear and use device's speed reducer can effectively eliminate intertooth space back lash and back clearance, has the automatic compensation function to make the pipeline pass through from the hollow output shaft, beautifully just be difficult for the twist -off, reduceed the noise, showing and improving transmission precision and life.
Description
Technical field
This utility model relates to a kind of zero back clearance gear drive and uses the reductor of this device, belongs to speed reducing machinery field.
Background technology
Reductor plays coupling rotating speed and the effect of transmission torque between prime mover and working machine or actuator, and reductor is a kind of relatively accurate machinery, and the purpose using it is to reduce rotating speed, increases torque.Existing reductor is mostly gears rotational structure, and gear drive is a kind of type of belt drive most widely used in machine driving.Its gear ratio is relatively accurate, and efficiency is high, and compact conformation, reliable operation, the life-span is long.But on the one hand gear drive is due to machining accuracy, coordinates and wear problem can produce back lash, not only can produce between cog impact, affect gear-driven stationarity, and higher noise can be produced.On the other hand, there is back clearance problem between the gear of reductor, existing gear reduction unit cannot accomplish zero back clearance, and due to the abrasion during using, back clearance can be increasing, has a strong impact on the repetitive positioning accuracy of precision machine tool.Additionally, the pipelines such as existing reductor cable, holding wire, cooling water pipe, trachea, hydraulic oil pipe and lubricating oil pipe need to pass through outside reductor, the most unsightly, and easily twist off when outfan mechanism makees 360 degree of reciprocating rotaries, back-out.
Utility model content
In order to solve above-mentioned technical problem, this utility model provides a kind of zero back clearance gear drive and uses the reductor of this device.This zero back clearance gear drive and use the reductor of this device can eliminate between cog back lash and back clearance, to the processing of engaged transmission, assemble and the error produced of wearing and tearing has automatic compensation function, and make pipeline pass through from hollow output shaft, attractive in appearance and be difficult to twist off, reduce noise, ensure that transmission accuracy, improve service life.
The technical solution of the utility model is as follows:
A kind of zero back clearance gear drive, including power shaft and output shaft；It is provided with bevel gear set on described power shaft；Described bevel gear set includes multiple power shaft helical gear abutted and be in axial sliding connection with power shaft；Being fixedly installed shoulder block on the power shaft of described bevel gear set side, opposite side is provided with elastic mechanism；Described elastic mechanism one end is against bevel gear set, and the other end is resisted against on a stop nut；Described stop nut is set on power shaft；Output shaft helical gear it is arranged with outside described output shaft；Described output shaft helical gear engages with power shaft helical gear.
Wherein, described power shaft helical gear is in axial sliding connection with power shaft by a spline.
Wherein, described elastic mechanism includes taper shim pack or the disk spring being set in outside power shaft.
Wherein, described output shaft helical gear is connected with output shaft swelling by an expansion sleeve assembly；Described expansion sleeve assembly includes the expansion inner sleeve being set in outside output shaft, expansion overcoat wide at the top and narrow at the bottom and inner-outer sleeve securing member；Described expansion inner sleeve is L-shaped along the cross section that output shaft is axial, forms expansion slot wide at the top and narrow at the bottom between described expansion inner sleeve and the second helical gear；Described expansion overcoat embeds expansion slot；Described inner-outer sleeve securing member penetrates expansion overcoat the most successively and expands inner sleeve and be fastenedly connected expansion overcoat and expand inner sleeve along output shaft.
Wherein, described inner-outer sleeve securing member is bolt.
A kind of reductor, including zero described back clearance gear drive, also includes a housing；In described power shaft and output shaft are disposed in parallel in housing and all one end pass housing；Described power shaft with output shaft respectively power shaft loading bearing and output shaft loading bearing by being arranged in housing be connected with housing into rotation；Described output shaft is provided with axially extending bore.
Wherein, penetrate in described axially extending bore and be disposed with oil pipe, wire and cooling water pipe.
This utility model has the advantages that
1, a kind of zero back clearance gear drive of this utility model is provided with bevel gear set and matched elastic mechanism, effectively eliminates between cog back lash and back clearance, reduces between cog impact, improves transmission stability, add service life, reduce noise.
2, a kind of zero back clearance gear drive of this utility model arranges expansion sleeve assembly, make output shaft helical gear the tightst with the connection of output shaft and firm, and owing to expanding inner sleeve, the expansive force expanded between overcoat and output shaft helical gear, it is ensured that being connected firmly of output shaft helical gear and output shaft, stable and precision.
3, speed reducer output shaft of the present utility model is hollow type, makes pipeline pass through from hollow output shaft, attractive in appearance and be difficult to twist off.
4, the engaged transmission of reductor of the present utility model can effectively realize automatically compensating, and the error produced of processing, assemble and wear and tear is had automatic compensation function, significantly improves transmission accuracy and service life.
5, the novel regulation of reductor of the present utility model is easy to maintenance, and elastic mechanism is made without second time in reductor lifetime and regulates.
6, speed reducer structure of the present utility model is simple, and low cost, the life-span is long.
Accompanying drawing explanation
Fig. 1 is the generalized section of this utility model a kind of hollow type zero back clearance reductor.
In figure, reference is expressed as:
1-housing, 11-power shaft loading bearing, 12-output shaft loading bearing, 2-power shaft, 21-bevel gear set, 211-power shaft helical gear, 22-shoulder block, 23-elastic mechanism, 24-stop nut, 3-output shaft, 31-output shaft helical gear, 32-expansion sleeve assembly, 321-expand inner sleeve, 322-expands overcoat, 323-expansion slot, 324-inner-outer sleeve securing member, 33-through hole.
Detailed description of the invention
With specific embodiment, this utility model is described in detail below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of zero back clearance gear drive, including power shaft 2 and output shaft 3；It is provided with bevel gear set 21 on described power shaft 2；Described bevel gear set 21 includes multiple power shaft helical gear 211 abutted and be in axial sliding connection with power shaft 2；Being fixedly installed shoulder block 22 on the power shaft 2 of described bevel gear set 21 side, opposite side is provided with elastic mechanism 23；Described elastic mechanism 23 one end is against bevel gear set 21, and the other end is resisted against on a stop nut 24；Described stop nut 24 is set on power shaft 2；It is arranged with output shaft helical gear 31 outside described output shaft 3；Described output shaft helical gear 31 engages with power shaft helical gear 211.
Wherein, described power shaft helical gear 211 is in axial sliding connection with power shaft 2 by a spline (not shown).
Wherein, described elastic mechanism 23 includes taper shim pack or the disk spring being set in outside power shaft 2.
Wherein, described output shaft helical gear 31 is connected with output shaft 3 swelling by an expansion sleeve assembly 32；Described expansion sleeve assembly 32 includes the expansion inner sleeve 321 being set in outside output shaft 3, expansion overcoat 322 wide at the top and narrow at the bottom and inner-outer sleeve securing member 324；Described expansion inner sleeve 321 is L-shaped along the cross section that output shaft 3 is axial, forms expansion slot 323 wide at the top and narrow at the bottom between described expansion inner sleeve 321 and the second helical gear 31；Described expansion overcoat 322 embeds expansion slot 323；Described inner-outer sleeve securing member 324 penetrates expansion overcoat 322 the most successively along output shaft 3 and expands inner sleeve 321 and be fastenedly connected expansion overcoat 322 and expand inner sleeve 321.
Wherein, described inner-outer sleeve securing member 324 is bolt.
A kind of reductor, including zero described back clearance gear drive, also includes a housing 1；In described power shaft 2 and output shaft 3 are disposed in parallel in housing 1 and all one end pass housing 1；Described power shaft 2 and output shaft 3 power shaft loading bearing 11 and output shaft loading bearing 12 by being arranged in housing 1 respectively is rotationally connected with housing 1；Described output shaft 3 is provided with axially extending bore 33.
Wherein, penetrate in described axially extending bore 33 and be disposed with oil pipe, wire and cooling water pipe.
Operation principle of the present utility model:
Power shaft 2 band driven input shaft bevel gear set 21 rotates, owing to there is intrinsic gap between gear, power shaft helical gear 211 produces under the promotion of elastic mechanism 23 and moves axially, owing to helical gear has helical angle, when moving axially, the working bus bar of its gear can produce circumference change, thus force the working bus bar of two power shaft bevel gear set 21 flanks gradually to stagger from straight line, thus eliminate power shaft bevel gear set 21 and the gap of output shaft helical gear 31 engagement, and overcome rotation back clearance.Owing to power shaft helical gear 211 is under the effect of elastic mechanism 23, axial displacement on power shaft 2, in the case of gear the most constantly weares and teares, under elastic mechanism 23 elastic force effect, power shaft helical gear is in the most axially displacement, thus can overcome error concealment and the back lash of output shaft helical gear 31 of abrasion generation, make reductor be in whole lifetime under zero back clearance state and work.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in scope of patent protection of the present utility model.
Claims (7)
1. a back clearance gear drive, it is characterised in that: include power shaft (2) and output shaft (3)；Bevel gear set (21) it is provided with on described power shaft (2)；Described bevel gear set (21) includes multiple power shaft helical gear (211) abutted and be in axial sliding connection with power shaft (2)；Being fixedly installed shoulder block (22) on the power shaft (2) of described bevel gear set (21) side, opposite side is provided with elastic mechanism (23)；Described elastic mechanism (23) one end is against bevel gear set (21), and the other end is resisted against on a stop nut (24)；Described stop nut (24) is set on power shaft (2)；Output shaft helical gear (31) it is arranged with outside described output shaft (3)；Described output shaft helical gear (31) is engaged with power shaft bevel gear set (21).
A kind of zero back clearance gear drive, it is characterised in that: described power shaft helical gear (211) is in axial sliding connection with power shaft (2) by a spline.
A kind of zero back clearance gear drive, it is characterised in that: described elastic mechanism (23) includes being set in the outer taper shim pack of power shaft (2) or disk spring.
A kind of zero back clearance gear drive, it is characterised in that: described output shaft helical gear (31) is connected with output shaft (3) swelling by an expansion sleeve assembly (32)；Described expansion sleeve assembly (32) includes being set in output shaft (3) expansion inner sleeve (321), expansion overcoat (322) wide at the top and narrow at the bottom and inner-outer sleeve securing member (324) outward；Described expansion inner sleeve (321) is L-shaped along the cross section that output shaft (3) is axial, forms expansion slot (323) wide at the top and narrow at the bottom between described expansion inner sleeve (321) and output shaft helical gear (31)；Described expansion overcoat (322) embeds expansion slot (323)；Described inner-outer sleeve securing member (324) penetrates expansion overcoat (322) the most successively along output shaft (3) and expands inner sleeve (321) and be fastenedly connected expansion overcoat (322) and expand inner sleeve (321).
A kind of zero back clearance gear drive, it is characterised in that: described inner-outer sleeve securing member (324) is bolt.
6. a reductor, it is characterised in that: include zero back clearance gear drive described in claim 1 to 5, also include a housing (1)；In described power shaft (2) and output shaft (3) are disposed in parallel in housing (1) and all one end pass housing (1)；Described power shaft (2) and output shaft (3) power shaft loading bearing (11) and output shaft loading bearing (12) by being arranged in housing (1) respectively is rotationally connected with housing (1)；Described output shaft (3) is provided with axially extending bore (33).
7. a kind of reductor as claimed in claim 6, it is characterised in that: penetrate in described axially extending bore (33) and be disposed with oil pipe, wire and cooling water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620475548.6U CN205654848U (en) | 2016-05-23 | 2016-05-23 | Zero back clearance gear and use device's speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620475548.6U CN205654848U (en) | 2016-05-23 | 2016-05-23 | Zero back clearance gear and use device's speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205654848U true CN205654848U (en) | 2016-10-19 |
Family
ID=57404201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620475548.6U Expired - Fee Related CN205654848U (en) | 2016-05-23 | 2016-05-23 | Zero back clearance gear and use device's speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205654848U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805289A (en) * | 2016-05-23 | 2016-07-27 | 福建省南安市万福机械有限公司 | Zero-back-lash gear transmission device and speed reducer using device |
-
2016
- 2016-05-23 CN CN201620475548.6U patent/CN205654848U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805289A (en) * | 2016-05-23 | 2016-07-27 | 福建省南安市万福机械有限公司 | Zero-back-lash gear transmission device and speed reducer using device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170522 Address after: 200000 Shanghai city Chinese Zuchongzhi Road (Shanghai) Free Trade Zone No. 1077 Building 2 room 1150-D Patentee after: Tatsu Qin Intelligent Technology (Shanghai) Limited by Share Ltd Address before: 362342 Nanan City, Quanzhou Province, the town of the Town Park Village Patentee before: FUJIAN NAN'AN WANFU MACHINERY CO., LTD. |
|
| 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: 20161019 Termination date: 20210523 |