CN206555305U - The mainshaft mechanism of smooth running - Google Patents
The mainshaft mechanism of smooth running Download PDFInfo
- Publication number
- CN206555305U CN206555305U CN201720256340.XU CN201720256340U CN206555305U CN 206555305 U CN206555305 U CN 206555305U CN 201720256340 U CN201720256340 U CN 201720256340U CN 206555305 U CN206555305 U CN 206555305U
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- Prior art keywords
- bearing
- main shaft
- bushing
- angular contact
- axial
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Abstract
The utility model is related to a kind of mainshaft mechanism of smooth running, including support set, bearing assembly and main shaft, bearing assembly includes positioning the bushing being assemblied in support set in the way of it can slide axially, main shaft passes through bushing, the first angular contact bearing and the second angular contact bearing are supported between bushing and main shaft, first angular contact bearing and the second angular contact bearing are located at the axial end positions of tube chamber of bushing, the outer ring being respectively equipped with bushing two-port with the first angular contact bearing axially contradicts the back-up ring of spacing cooperation and the preload ring with the spacing cooperation of outer ring axial direction conflict of the second angular contact bearing, one end relative with main shaft axial load input is provided with axial load equalizer bearing in support set, axial load equalizer bearing outer ring is fixed on support and put, the inner ring of axial load equalizer bearing is fixed on main shaft.With simple in construction, axial carrying capacity is good, advantage stable and reliable in work.
Description
Technical field
The utility model is related to PTO, is specifically mainshaft mechanism.
Background technology
Mainshaft mechanism generally includes main shaft, and main shaft is installed on axle bed through many set bearings, and main shaft drives through motor and realized
Power output.For some application scenarios, main shaft needs to bear axial load, is such as applied to main on material fatigue tester
Axis mechanism, main shaft needs to bear the axial load from loading device.But under the structure design of existing mainshaft mechanism, there is structure
Complexity, the ability to bear of axial load is limited, is not suitable for higher axial load occasion and uses, under higher axial load,
Operate the defect of stability difference.
The content of the invention
The present utility model purpose：To overcome the defect that prior art is present, the utility model provides a kind of structure letter
It is single, good, the stable and reliable in work mainshaft mechanism of axial carrying capacity.
To achieve the above object, the utility model provides following technical scheme：
A kind of mainshaft mechanism of smooth running, including support set, bearing assembly and main shaft, main shaft are rotated through bearing assembly
Support is matched with to put, it is characterised in that：Described bearing assembly includes bushing, and bushing is determined in the way of it can slide axially
Position is assemblied in support set, and the main shaft passes through bushing, and the first angular contact bearing and second jiao are supported between bushing and main shaft
The inner ring fixed cover of contact bearing, the inner ring of the first angular contact bearing and the second angular contact bearing is loaded on main shaft, the first corner connection
The outer ring of contact bearing and the outer ring of the second angular contact bearing are tight with the tube chamber of bushing, the first angular contact bearing and the second corner connection
Contact bearing is located at the axial end positions of tube chamber of bushing, bushing two-port the outer race shaft being respectively equipped with the first angular contact bearing
Preload ring to the back-up ring for contradicting spacing cooperation and with the spacing cooperation of outer ring axial direction conflict of the second angular contact bearing, the machine
One end relative with main shaft axial load input is provided with axial load equalizer bearing, axial load equalizer bearing outer ring in cover for seat
It is fixed on support to put, the inner ring of axial load equalizer bearing is fixed on main shaft.
By using above-mentioned technical proposal, bushing, the first angular contact axle, the second angular contact bearing and axial load balance shaft
The supporting for realizing main shaft is held, at the trial, after connector axial load is stretched into, bushing realizes axially shifting under axial load forces
It is dynamic, and realize that axial load is balanced through axial counterweight balance bearing, reach the steady operating of main shaft and balance spindle shaft to load.
It is preferred that, one end of the bushing correspondence main shaft axial load input is contradicted with the end cap that support covers to be coordinated, lining
There is axial active interval between the end cap for covering the other end and support set.Under the structure design, the end cap of support set contradicts bushing,
Power is transferred on axial load equalizer bearing through the first angular contact bearing, the second angular contact bearing and main shaft, realized to axial direction
The axial pretightening of counterweight balance bearing, improves the run stability of main shaft.
It is preferred that, the axial load equalizer bearing is conical bearing.Under the structure design,.
It is preferred that, the main shaft is provided with depot fat disk, and depot fat disk is located at the axial inner ends position of axial load equalizer bearing,
Depot fat dish external diameter extends to the outer ring just to axial load equalizer bearing.Under the structure design, depot fat disk can reduce and be applied to axle
It is lost in the grease of counterweight balance bearing.
It is preferred that, the support, which is put, is provided with bearing press mounting hole in end cap corresponding with axial load equalizer bearing position
Seat, axial load equalizer bearing press-fits in the seat of bearing press mounting hole, and inner bearing press mounting hole seat is to supply axial load equalizer bearing
What is be pressed into press-fits mouth, and bearing press mounting hole seat outer end is with convex with the axial limiting of axial load equalizer bearing outer ring axial limiting
Edge, has the interval vestibule exposed for axial load equalizer bearing, the end cap of the support set between axial limiting flange and main shaft
On the dust cap for blocking interval vestibule is detachably installed, dust cap has the through hole passed through for main shaft.Under the structure design, axle
To the compact assembling structure and conveniently of counterweight balance bearing, while the design of dust cap, improves anti-dust performance, vestibule side is spaced
Just lubricant grease is added to axial load equalizer bearing.
The utility model is further described below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the utility model mainshaft mechanism structural representation.
Embodiment
Referring to accompanying drawing 1, support set 1, the first end cap 11, bearing press mounting hole seat 111, axial limiting flange 112 is spaced vestibule
113, the second end cap 12, dust cap 13, main shaft 2, bushing 3, the first angular contact bearing 4, the second angular contact bearing 5, taper roller
Bearing 6, axial active interval 7, depot fat disk 8.
A kind of mainshaft mechanism of smooth running disclosed in the utility model, including support set 1, bearing assembly and main shaft 2,
Main shaft 2 is rotatably assorted on support set 1 through bearing assembly, and the axial two ends of support set 1 carry end cap 11,12, for ease of narration,
Two end caps are respectively designated as the first end cap 11 and the second end cap 12, described bearing assembly includes bushing 3, bushing 3 with
The mode that can be slid axially, which is positioned, to be assemblied in support set 1, and the main shaft 2 passes through bushing 3, is supported between bushing 3 and main shaft 2
Have the first angular contact bearing 4 and the second angular contact bearing 5, the inner ring of the first angular contact bearing 4 and the second angular contact bearing 5 it is interior
Fixed cover is enclosed loaded on main shaft 2, the shaft shoulder is provided with main shaft 2, for the positioning of the first angular contact bearing 4 and the second contact bearing 5
Install, the outer ring of the outer ring of the first angular contact bearing 4 and the second angular contact bearing 5 is tight with the tube chamber of bushing 3, the first corner connection
The angular contact bearing 5 of contact bearing 4 and second is respectively equipped with the two-port of bushing 3 and the located at the tube chamber axial end positions of bushing 3
The outer ring of one angular contact bearing 4 axially contradicts the back-up ring 31 of spacing cooperation（Back-up ring is formed in one with bushing, naturally it is also possible to be
Assembled after parts processing）And the preload ring 32 with the spacing cooperation of outer ring axial direction conflict of the second angular contact bearing 5, preload ring 32
It is screw thread spinning in the external screw thread ring in bushing 3, convenient for assembly and the first angular contact bearing of regulation, the second angular contact bearing
One end relative with the axial load input of main shaft 2 is provided with axial load equalizer bearing in pretightning force, the support set 1, axially
Counterweight balance bearing is taper roll bearing 6, and the outer ring of taper roll bearing 6 is fixed on support set 1, taper roll bearing 6
Inner ring is fixed on main shaft 2, naturally it is also possible to thrust ball bearing, but taper roll bearing can well adapt to make in running at high speed
With, and thrust ball bearing is applied to use under main shaft low speed state.Wherein, the axial load input of main shaft 2 can be with drive
The one end for moving its rotation is consistent, or the other end relative with one end of the driving rotation of main shaft 2.So main shaft by
During axial load, taper roll bearing can be good at balancing axial load, and bushing can slide axially presentation float design, in axle
Acted on down to load, bushing power transmission lower axle through the first angular contact bearing and the second angular contact bearing in the presence of loading force
To generation certain displacement, it is ensured that main shaft already steadily can reliably rotate in responsive to axial force, improve functional reliability.
For ease of installing taper roll bearing, covered in support and bearing press mounting hole seat 111, circle are provided with 1 the first end cap 11
Taper roller bearing 6 is fitted in bearing press mounting hole seat 111.Moreover, it is to supply axial load balance shaft that bearing press mounting hole seat 111 is inner
What pressure-bearing entered press-fits mouth, and there is the axial direction with axial load equalizer bearing outer ring axial limiting to limit for bearing press mounting hole 111 outer ends of seat
Position flange 112, has the interval vestibule 113 exposed for axial load equalizer bearing, institute between axial limiting flange 112 and main shaft 2
The dust cap 13 for blocking interval vestibule 113 is detachably installed, dust cap 13 has for leading on the first end cap 11 for stating support set 1
The through hole that axle is passed through.It is spaced vestibule convenient to axial load equalizer bearing addition lubricant grease, the design of dust cap is improved dust-proof
Performance.
One end of the correspondence of the bushing 3 axial load input of main shaft 2 covers 1 end cap with support（In this specific embodiment
For the second end cap 112）Contradict and coordinate, for ease of coordinating, the second end cap 112 of support set 1 is provided with the tube chamber for stretching into support set 1
Interior projection, projection is butted on the end of bushing 3, and the other end of bushing 3 covers 1 end cap with support（It is first end in this specific embodiment
Lid 111）Between there is axial active interval 7.The end cap of support set contradicts bushing, through the first angular contact bearing, the second angular contact
Power is transferred on axial load equalizer bearing by bearing and main shaft, realizes the axial pretightening to axial load equalizer bearing, is improved
The run stability of main shaft.Thickness through changing raised can change the preload to axial load equalizer bearing.
Depot fat disk 8 is provided with the main shaft 2, depot fat disk 8 is located at the axial inner ends position of axial load equalizer bearing, storage
The external diameter of fat disk 8 extends to the outer ring just to axial load equalizer bearing；The correspondence of oil storage disc 8 press-fits bearing press mounting hole seat 111
Mouth position.Depot fat disk can reduce the grease loss for being applied to axial load equalizer bearing.
Claims (5)
1. a kind of mainshaft mechanism of smooth running, including support set, bearing assembly and main shaft, main shaft is rotated through bearing assembly matches somebody with somebody
Put together in support, it is characterised in that：Described bearing assembly includes bushing, and bushing is positioned in the way of it can slide axially
It is assemblied in support set, the main shaft passes through bushing, and the first angular contact bearing and the second corner connection are supported between bushing and main shaft
The inner ring fixed cover of contact bearing, the inner ring of the first angular contact bearing and the second angular contact bearing is loaded on main shaft, the first angular contact
The outer ring of bearing and the outer ring of the second angular contact bearing are tight with the tube chamber of bushing, the first angular contact bearing and the second angular contact
Bearing is located at the axial end positions of tube chamber of bushing, bushing two-port the outer ring axial direction being respectively equipped with the first angular contact bearing
Contradict the back-up ring of spacing cooperation and the preload ring with the spacing cooperation of outer ring axial direction conflict of the second angular contact bearing, the support
One end relative with main shaft axial load input is provided with axial load equalizer bearing in set, and axial load equalizer bearing outer ring is consolidated
Put due to support, the inner ring of axial load equalizer bearing is fixed on main shaft.
2. the mainshaft mechanism of smooth running according to claim 1, it is characterised in that：The bushing correspondence main shaft axial load
One end of input and the end cap conflict of support set coordinate, between having axial direction movable between the end cap of the bushing other end and support set
Every.
3. the mainshaft mechanism of smooth running according to claim 1 or claim 2, it is characterised in that：The axial load equalizer bearing
For conical bearing.
4. the mainshaft mechanism of smooth running according to claim 1 or claim 2, it is characterised in that：The main shaft is provided with depot fat disk,
Depot fat disk is located at the axial inner ends position of axial load equalizer bearing, and depot fat dish external diameter is extended to just to axial load equalizer bearing
Outer ring.
5. the mainshaft mechanism of smooth running according to claim 1 or claim 2, it is characterised in that：The support is put and axially load
Provided with bearing press mounting hole seat in the corresponding end cap in lotus equalizer bearing position, axial load equalizer bearing press-fits in bearing press mounting hole seat
Interior, inner bearing press mounting hole seat is to press-fit mouth for what axial load equalizer bearing was pressed into, and bearing press mounting hole seat outer end has and axle
Have to the axial limiting flange of counterweight balance bearing outer ring axial limiting, between axial limiting flange and main shaft and put down for axial load
The dust cap for blocking interval vestibule is detachably installed on the interval vestibule that weighing apparatus bearing exposes, the end cap of the support set, it is dust-proof
Lid is with the through hole passed through for main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720256340.XU CN206555305U (en) | 2017-03-16 | 2017-03-16 | The mainshaft mechanism of smooth running |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720256340.XU CN206555305U (en) | 2017-03-16 | 2017-03-16 | The mainshaft mechanism of smooth running |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206555305U true CN206555305U (en) | 2017-10-13 |
Family
ID=60365482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720256340.XU Active CN206555305U (en) | 2017-03-16 | 2017-03-16 | The mainshaft mechanism of smooth running |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206555305U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855867A (en) * | 2017-11-30 | 2019-06-07 | 洛阳轴承研究所有限公司 | A kind of loading device of integrated axial load load and spin load load |
| CN109855868A (en) * | 2017-11-30 | 2019-06-07 | 洛阳轴承研究所有限公司 | A kind of bearing axial rigidity dynamic testing method and test equipment |
-
2017
- 2017-03-16 CN CN201720256340.XU patent/CN206555305U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855867A (en) * | 2017-11-30 | 2019-06-07 | 洛阳轴承研究所有限公司 | A kind of loading device of integrated axial load load and spin load load |
| CN109855868A (en) * | 2017-11-30 | 2019-06-07 | 洛阳轴承研究所有限公司 | A kind of bearing axial rigidity dynamic testing method and test equipment |
| CN109855867B (en) * | 2017-11-30 | 2021-01-22 | 洛阳轴承研究所有限公司 | Loading device integrating axial load loading and rotary load loading |
| CN109855868B (en) * | 2017-11-30 | 2021-01-22 | 洛阳轴承研究所有限公司 | Dynamic test method and test equipment for axial stiffness of bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325000 No. 16, Yong Jiang Road, Wenzhou economic and Technological Development Zone, Zhejiang, China Patentee after: C&U Co.,Ltd. Patentee after: SHANGHAI C&U GROUP Co.,Ltd. Address before: 325000 No. 16, Yong Jiang Road, Wenzhou economic and Technological Development Zone, Zhejiang, China Patentee before: C & U Group Ltd. Patentee before: SHANGHAI C&U GROUP Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |