CN205816879U - A kind of power head structure - Google Patents
A kind of power head structure Download PDFInfo
- Publication number
- CN205816879U CN205816879U CN201620544583.9U CN201620544583U CN205816879U CN 205816879 U CN205816879 U CN 205816879U CN 201620544583 U CN201620544583 U CN 201620544583U CN 205816879 U CN205816879 U CN 205816879U
- Authority
- CN
- China
- Prior art keywords
- bearing
- shaft sleeve
- outer shaft
- main shaft
- cap
- 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.)
- Expired - Fee Related
Links
- 239000002184 metal Substances 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000002173 cutting fluid Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
A kind of power head structure, outer shaft sleeve is fixed on outer sleeve, and main shaft is positioned at outer shaft sleeve, and the upper inside wall of outer shaft sleeve is provided with upper bearing (metal), inner wall lower is provided with lower bearing, and the upper end of main shaft couples with the motion end of drive mechanism, and the lower end of main shaft is provided with end cap；Motion end holds out against on upper external door, in upper external door, compress gasket and upper elastomeric pad are installed, upper external door is connected with the moving-coil of upper bearing (metal), the Jing Quan of upper bearing (metal) is fixed on outer shaft sleeve, above sealing block and elastic seal ring are set between external door and outer shaft sleeve, between lower end and the interior wall shoulder of outer shaft sleeve of upper bearing (metal), spring is set；The moving-coil upper end of lower bearing arranges latch segment, latch segment and main shaft are fixing to be connected, the lower end of lower bearing successively with bearing cap, under external block be connected, bearing cap is fixed on the lower end of outer shaft sleeve, the moving-coil lower end of lower bearing is fixing with end cap to be connected, and arranges lower elastomeric pad between bearing cap and end cap.This utility model precision is higher, size is less, favorable sealing property.
Description
Technical field
This utility model relates to actuating unit, especially a kind of power head structure.
Background technology
Have keyway key on existing power head structure many employings main shaft to be connected with main shaft by belt wheel, countershaft Intensity Design
Impact is relatively big, adds relevant tolerance fit simultaneously, is unfavorable for the raising of precision, and the size that also result in axle easily designed
Greatly.
Lathe, in the course of processing to part, can cause substantial amounts of cutting fluid, water smoke, waste residue to splash, be easily accessible profit
In consistent lubricant, lubricant effect is made to reduce, so needing a good sealing structure.
Summary of the invention
For the deficiency that the precision overcoming existing unit head is relatively low, oversize, sealing property is poor, this utility model carries
For a kind of precision is higher, size is less, the power head structure of favorable sealing property.
This utility model solves its technical problem and be the technical scheme is that
A kind of power head structure, including main shaft and outer shaft sleeve, described outer shaft sleeve is fixed on described outer sleeve, described main shaft
Being positioned at outer shaft sleeve, the upper inside wall of described outer shaft sleeve is provided with upper bearing (metal), inner wall lower is provided with lower bearing, the upper end of described main shaft
Coupling with the motion end of drive mechanism, the lower end of described main shaft is provided with end cap；
The motion end of described drive mechanism holds out against on upper external door, install in described external door compress gasket and
Upper elastomeric pad, described external door is connected with the moving-coil of upper bearing (metal), and the Jing Quan of described upper bearing (metal) is fixed on outer shaft sleeve, institute
State and sealing block and elastic seal ring are set between external door and outer shaft sleeve, the lower end of described upper bearing (metal) and the inwall of outer shaft sleeve
Spring is set between shoulder；
The moving-coil upper end of described lower bearing arranges latch segment, and described latch segment is fixing with main shaft to be connected, described lower bearing
Lower end successively with bearing cap, under external block be connected, described bearing cap is fixed on the lower end of outer shaft sleeve, the moving-coil of described lower bearing
Lower end is fixing with described end cap to be connected, and arranges lower elastomeric pad between described bearing cap and end cap.
Further, the upper end of described main shaft has screwed hole, and the motion end of described drive mechanism is hollow form, trip bolt
It is fixed on the motion end inner chamber of drive mechanism and is arranged in screwed hole.
Technology of the present utility model is contemplated that: this unit head compact overall structure, simple, design small and exquisite, the company of each parts
Connect cooperation closely, and the two ends up and down of main shaft are directly connected to by screw thread, can be efficiently against in existing unit head technology
The problem of low precision (circular runout is big, axial runout is big)；It is little that this unit head has volume, lightweight, compares other unit heads
The mobile difficulty that fixed installation, structure cause the most greatly, can be more easily adapted to conform to various operating mode, and installing/dismounting is easy, safeguard simple.
The upper and lower two ends of power head structure, all have door to be connected with main shaft, it is to avoid the two ends in existing power head structure are opened
Mouthful, main shaft stretches out the shortcoming that the gap value caused is difficult to hold and the sealing property that causes is not enough, and passes through at metal (upper
The parts such as sealing block, latch segment, elastic seal ring improve sealing property further.Comparing existing unit head to seal, structure is more
Simply, effect is more preferable.
The beneficial effects of the utility model are mainly manifested in: precision is higher, size is less, favorable sealing property.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of power head structure.
Fig. 2 is the schematic diagram that power head structure is applied to experimental provision.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
Seeing figures.1.and.2, a kind of power head structure, including main shaft 20 and outer shaft sleeve 21, described outer shaft sleeve 21 is fixed on institute
Stating on outer sleeve 8, described main shaft 20 is positioned at outer shaft sleeve 21, and the upper inside wall of described shaft housing 21 is provided with upper bearing (metal) 18, inwall
Bottom is provided with lower bearing 26, and the upper end of described main shaft 20 couples with the motion end 7 of drive mechanism, and the lower end of described main shaft 20 is provided with
End cap 25；
The lower end of the motion end 7 of described drive mechanism holds out against on upper external door 13, peace in described external door 13
Loading onto compress gasket 14 and upper elastomeric pad 15, described external door 13 is connected with the moving-coil of upper bearing (metal) 18, described upper bearing (metal)
The Jing Quan of 18 is fixed on outer shaft sleeve 21, arranges sealing block 17 and elastic packing between described external door 13 and outer shaft sleeve 21
Circle 16, arranges spring 19 between lower end and the interior wall shoulder of outer shaft sleeve 21 of described upper bearing (metal) 18.
The moving-coil upper end of described lower bearing 26 arranges latch segment 22, and described latch segment 22 is fixing with main shaft 20 to be connected, described
The lower end of lower bearing 26 successively with bearing cap 23, under external block 24 be connected, described bearing cap 23 is fixed on outer shaft sleeve 21 times
End, the moving-coil lower end of described lower bearing 26 is fixing with described end cap 25 to be connected, and arranges down between described bearing cap 23 and end cap 25
Elastomeric pad 27 and lower compress gasket 28.
Further, the upper end of described main shaft 20 has screwed hole, and the motion end 7 of described drive mechanism, in hollow form, fastens
Screw 12 is fixed on motion end 7 inner chamber of drive mechanism and is arranged in screwed hole.
In the present embodiment, this power head structure includes main shaft, outer shaft sleeve, synchronous pulley and trip bolt, main shaft 20 upper end
Having screwed hole trip bolt 12 to be connected with the motion end 7 of drive mechanism, motion end 7 lower end then holds out against external door 13,
Upper external door 13 is built with upper compress gasket 14 and upper elastomeric pad 15；
Upper bearing (metal) 18 is fixed by the shaft shoulder and upper external door 13 respectively, and spring 19 then skew to bearing 18 plays regulation and makees
With, lower bearing 18 respectively by latch segment 22, under external door 24, bearing cap 23 fix, latch segment 22 is then with main shaft 20 screw thread even
Connect；
Sealing block 17 is compressed by upper compress gasket 14, connects in shaft housing 21, and it is also equipped with elastic seal ring 16, right
Upper bearing (metal) seals, and the sealing of lower bearing is then by bearing cap 23, equally by the lower cushion being contained in down external door 24
Sheet 27 and compress gasket 28 compress；
Outer shaft sleeve 21 is fastened on complete machine support 11 by screw thread and outer sleeve 8, and bottom is then threadedly secured in bearing
On lid 23；
Main shaft 20 lower end has screwed hole, and end cap 25 is attached thereto, and will under external door 24 axial restraint, end cap 25 with
Drill bit thread connects replaceable different drill bit；
Under external door and be positioned on the end cap of bottom and all have annular slotted hole, reduce contact surface and be lubricated, lower outside
Connect and leave gap between door and outer shaft sleeve 21.
The power head structure of the present embodiment is applied to experimental provision, and described experimental provision includes frame 11, drives motor
3, drivewheel 1, synchronization drive belt 2, synchronous pulley, outer sleeve 8, unit head 9 and displacement transducer 10, described synchronous pulley is for driving
The motion end 7 of motivation structure, described frame 11 is installed and drives motor 3, and the output shaft of described driving motor 3 is installed drivewheel 1,
On described drivewheel 1 and synchronous pulley, suit synchronizes drive belt 2, and described outer sleeve 8 is fixed in frame 11, described unit head 9
Being positioned at outer sleeve 8, links with synchronous pulley in the upper end of described unit head 9, and the lower end of described unit head 9 is provided with treats for installation
The end cap 25 of test rotating shaft, the side of described end cap 25 arranges institute's displacement sensors 10.
Institute's displacement sensors 10 is connected with control chamber 6, and described control chamber 6 is connected with controller 4 by holding wire 5, institute
State controller 4 and be connected with driving motor 3.
Displacement transducer use current vortex sensor, have functional reliability good, measure wide ranges, highly sensitive, structure
The advantage such as simple, can the state of direct non-cpntact measurement rotating shaft, and related data is transferred to control chamber.
The unit head circular runout detection of the present embodiment: by driven by motor conveyer belt, drive and be fixed on complete machine support
Unit head, under different rotating speeds unit head circular runout detection, under operating mode detect, rotating speed is adjustable, regulates and controls electricity by control chamber
Machine output speed, carrys out the continuous detecting unit head situation of beating when running up with displacement transducer.And pass control chamber note back
Record related data.Displacement transducer use current vortex sensor, have functional reliability good, measure wide ranges, highly sensitive, knot
The advantages such as structure is simple, the state of energy directly non-cpntact measurement rotating shaft, and related data is transferred to control chamber.Traditional radial direction is jumped
Dynamic detection is Traditional Man radial pulsation measurement method and utilizes data collecting instrument to connect dial gauge measurement, is all under non-operating mode
Static measurement.
Claims (2)
1. a power head structure, it is characterised in that: include that main shaft and outer shaft sleeve, described outer shaft sleeve are fixed on described outer sleeve
On, described main shaft is positioned at outer shaft sleeve, and the upper inside wall of described outer shaft sleeve is provided with upper bearing (metal), inner wall lower is provided with lower bearing, institute
The motion end of the upper end and drive mechanism of stating main shaft couples, and the lower end of described main shaft is provided with end cap；
The motion end of described drive mechanism holds out against on upper external door, installs compress gasket and upper bullet in described external door
Property pad, described external door is connected with the moving-coil of upper bearing (metal), and the Jing Quan of described upper bearing (metal) is fixed on outer shaft sleeve, described on
The interior wall shoulder of sealing block and elastic seal ring, the lower end of described upper bearing (metal) and outer shaft sleeve is set between external door and outer shaft sleeve
Between spring is set；
The moving-coil upper end of described lower bearing arranges latch segment, and described latch segment is fixing with main shaft to be connected, the lower end of described lower bearing
Successively with bearing cap, under external block be connected, described bearing cap is fixed on the lower end of outer shaft sleeve, the moving-coil lower end of described lower bearing
Fix with described end cap and be connected, lower elastomeric pad is set between described bearing cap and end cap.
2. a kind of power head structure as claimed in claim 1, it is characterised in that: the upper end of described main shaft has screwed hole, institute
The motion end stating drive mechanism is hollow form, and trip bolt is fixed on the motion end inner chamber of drive mechanism and is arranged on screwed hole
In.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620544583.9U CN205816879U (en) | 2016-06-07 | 2016-06-07 | A kind of power head structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620544583.9U CN205816879U (en) | 2016-06-07 | 2016-06-07 | A kind of power head structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205816879U true CN205816879U (en) | 2016-12-21 |
Family
ID=57569571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620544583.9U Expired - Fee Related CN205816879U (en) | 2016-06-07 | 2016-06-07 | A kind of power head structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205816879U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880688A (en) * | 2016-06-07 | 2016-08-24 | 浙江工业大学 | Power head structure |
| CN108006197A (en) * | 2017-11-06 | 2018-05-08 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of gear axis mechanism for high speed driving unit |
| CN111734300A (en) * | 2020-01-19 | 2020-10-02 | 江苏金亚益重工科技有限公司 | Hydraulic drive reverse circulation drilling machine power head |
-
2016
- 2016-06-07 CN CN201620544583.9U patent/CN205816879U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880688A (en) * | 2016-06-07 | 2016-08-24 | 浙江工业大学 | Power head structure |
| CN108006197A (en) * | 2017-11-06 | 2018-05-08 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of gear axis mechanism for high speed driving unit |
| CN111734300A (en) * | 2020-01-19 | 2020-10-02 | 江苏金亚益重工科技有限公司 | Hydraulic drive reverse circulation drilling machine power head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20161221 Termination date: 20190607 |