CN105333109B - A kind of encircling type precision bearing system and in-between adjustment structure - Google Patents
A kind of encircling type precision bearing system and in-between adjustment structure Download PDFInfo
- Publication number
- CN105333109B CN105333109B CN201510849148.7A CN201510849148A CN105333109B CN 105333109 B CN105333109 B CN 105333109B CN 201510849148 A CN201510849148 A CN 201510849148A CN 105333109 B CN105333109 B CN 105333109B
- Authority
- CN
- China
- Prior art keywords
- bearing
- contact ball
- axle
- angular contact
- ball bearing
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
- F16H57/022—Adjustment of gear shafts or bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
- F16H57/022—Adjustment of gear shafts or bearings
- F16H2057/0222—Lateral adjustment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
- F16H57/022—Adjustment of gear shafts or bearings
- F16H2057/0228—Mounting with rough tolerances and fine adjustment after assembly
Abstract
The present invention relates to a kind of encircling type precision bearing system and in-between adjustment structure, including main shaft, bearing block, encoder, torque machine, the first angular contact ball bearing, the second angular contact ball bearing, load 1 and load 2, radial dimension of the main shaft including central shaft and centrally disposed axle both ends is more than the axle left end and axle right-hand member of central shaft, axle left end, axle right-hand member and central axis are set, axle right-hand member is integrated with central shaft, and axle left end is connected with central shaft by threaded fastener；Axle left end is connected by the first angular contact ball bearing with bearing block, axle right-hand member is connected by the second angular contact ball bearing with bearing block, encoder and torque machine are set on the main shaft between two angular contact ball bearings, and load 1 and load 2 are located on the main shaft on the outside of two angular contact ball bearings respectively.The shafting structure of the present invention not only greatly reduces shafting space, and further increases the precision of shafting, while a load can be respectively installed in left and right ends, adds bearing capacity.
Description
Technical field
The invention belongs to precision optical machinery to fill school field, is related to a kind of encircling type precision bearing system and in-between adjustment structure.
Background technology
In the design of precision bearing system, following two forms are typically taken：
Scheme 1：Simply supported beam form.As shown in figure 1, wherein A ends are positioning end, a pair of alignment bearing (such as angles are typically taken
Contact ball bearing group, installed using DB types or DF types)；Right-hand member is supported end, generally a travelling bearing (such as deep-groove ball axle
Hold).Encoder is arranged on positioning end, and torque machine is arranged on supported end.Generally, load is distributed in centre using " H " type.
Scheme 2：For the little shafting of small-sized shafting or shafting use environment temperature change, in order to save space and carry
High accuracy, composition essence (such as angular contact ball bearing group, directly can be installed) using DB types or DF types using a pair of alignment bearings
Close shafting, encoder is installed at its both ends respectively and torque motor, structure are as shown in Figure 2.Generally, load uses " T "
Type is distributed in both ends.
In being designed in precision bearing system, angular contact ball bearing group can both bear radial forces, also as positioning end
Axial force can be born, so being widely used.But the characteristics of due to angular contact ball bearing group, no matter using scheme 1
Or scheme 2, its shafting span can not be too small on spatially, and load has certain limitations.
The content of the invention
In the case where shaft size and weight have strict demand, especially to " small shafting, it is big (with respect to shafting in itself
Weight load and larger) load " precision bearing system in the case of, can not often be met using the shafting scheme in background technology will
Ask, therefore, the present invention provides a kind of encircling type precision bearing system, while propose the middle adjustment knot for the encircling type precision bearing system
Structure.
The present invention technical solution be：
Encircling type precision bearing system provided by the present invention, including main shaft, bearing block 3, encoder, torque machine, the first corner connection
Ball bearing 1, the second angular contact ball bearing 12, load 1 and load 2 are touched, it is characterized in that：
The main shaft include central shaft and centrally disposed axle both ends radial dimension be more than the axle left end 16 of central shaft with
Axle right-hand member 11, the axle left end 16, axle right-hand member 11 and central axis are set, the axle right-hand member 11 and the integrated knot of central shaft
Structure, the axle left end 16 are connected with central shaft by threaded fastener；
The bearing block 3 has the two first axle bearing bore being coaxially disposed in left and right and second bearing hole, first corner connection
The angular contact ball bearing 12 of ball bearing 1 and second is touched respectively in first axle bearing bore and second bearing hole, the axle left end 16 is logical
Cross the first angular contact ball bearing 1 to be connected with bearing block 3, the axle right-hand member 11 passes through the second angular contact ball bearing 12 and bearing block 3
Connection,
The outside of first angular contact ball bearing 1 sets the angular contact ball of trim ring 17 and first in the first angular contact ball bearing
The outer trim ring 18 of bearing, trim ring 17 is connected by threaded fastener and axle left end 16 in first angular contact ball bearing, and described the
The outer trim ring 18 of one angular contact ball bearing is connected by threaded fastener and the left end of bearing block 3；Second angular contact ball bearing 12
Outside the outer trim ring 8 of the angular contact ball bearing of trim ring 9 and second, the second angular contact ball axle in the second angular contact ball bearing are set
Hold interior trim ring 17 to be connected by threaded fastener and axle right-hand member 11, the outer trim ring 8 of second angular contact ball bearing is tight by screw thread
Firmware is connected with the right-hand member of bearing block 3；
The encoder and torque machine are set on the main shaft between two angular contact ball bearings, and load 1 and load 2 distinguish position
On main shaft on the outside of two angular contact ball bearings.
Above-mentioned encoder rotor 14 is installed on axle left end 16, has encoder between encoder rotor 14 and axle left end 16
Rotor, which is repaiied, cuts pad 15；Encoder stator 5 is installed on bearing block 3, has encoder to determine between encoder stator 5 and bearing block 3
Son, which is repaiied, cuts pad 4；The rotor of encoder and the depth of parallelism of stator, interval are repaiied by encoder rotor cuts pad 15 and encoder stator is repaiied
Cut repairing for pad 4 and grind guarantee；
Optoelectronic switch shielding plate 13 is installed on encoder rotor 14, and optoelectronic switch 6 is installed on bearing block, is realized to axle
The working range control of system；
Torque machine stator 7 is installed on bearing block 3, and torque machine rotor 10 is installed on axle right-hand member 11.
The above-mentioned angular contact ball bearing 12 of first angular contact ball bearing 1 and second forms DF or DB installation forms.
Present invention also offers a kind of middle adjustment structure of encircling type shafting, it is characterized in that：Including main shaft system
And auxiliary mould shafting, the main shaft system include main shaft, bearing block, encoder, torque machine, the first angular contact ball bearing and second
Angular contact ball bearing, it is characterised in that：
The main shaft include central shaft and centrally disposed axle both ends radial dimension be more than the axle left end 16 of central shaft with
Axle right-hand member 11, the axle left end 16, axle right-hand member 11 and central axis are set, the axle right-hand member 11 and the integrated knot of central shaft
Structure, the axle left end 16 are connected with central shaft by threaded fastener；
The bearing block 3 has the two first axle bearing bore being coaxially disposed in left and right and second bearing hole, first corner connection
The angular contact ball bearing 12 of ball bearing 1 and second is touched respectively in first axle bearing bore and second bearing hole, the axle left end 16 is logical
Cross the first angular contact ball bearing 1 to be connected with bearing block 3, the axle right-hand member 11 passes through the second angular contact ball bearing 12 and bearing block 3
Connection,
Trim ring is separately provided for compressing in the bearing of bearing inner race on the outside of each angular contact ball bearing and for pressing
The outer trim ring of the bearing of mandrel bearing outer-ring, trim ring is connected by threaded fastener with axle left end and axle right-hand member respectively in two bearings,
The outer trim ring of two bearings is connected to the both sides of bearing block by threaded fastener,
The auxiliary mould shafting include auxiliary mould bearing block 20, auxiliary mould axle 19, the third angle contact ball bearing 21,
Trim ring 22 in the outer trim ring 23 of the third angle contact ball bearing and the third angle contact ball bearing, the auxiliary mould axle 19 are installed on main shaft
On the axle left end 16 of system, the auxiliary mould axle 19 and axle left end 16, the assembly of axle right-hand member 11 are coaxial；The auxiliary mould bearing
Seat 20 is installed on the outer trim ring 18 of the first angular contact ball bearing of main shaft system, and the third angle contact ball bearing 21 is installed on auxiliary mould
In bearing block 20, the inner ring of the third angle contact ball bearing 21 is compressed by trim ring 22 in the third angle contact bearing, the third angle contact ball axle
21 outer rings are held to be compressed by trim ring 23 outside the third angle contact ball bearing.
When the first angular contact ball bearing 1 and the second angular contact ball bearing 12 composition DF installation forms, the first angular contact ball
Bearing 1 uses DB installation forms with the composition of the third angle contact ball bearing 21.When the first angular contact ball bearing 1 and the second angular contact ball axle
When holding 12 composition DB installation forms, the first angular contact ball bearing 1 uses DF installation forms with the composition of the third angle contact ball bearing 21.
Compared with prior art, advantage is the present invention：
1st, the innovative design " encircling type precision bearing system " in the design of shafting, feelings are permitted in conditions such as use environment temperature controls
A deep groove ball bearing is eliminated under condition, a precision bearing system is formed by by two angular contact ball bearings, at the same by encoder and
Torque machine is in the layout of among two angular contact ball bearings, so not only greatly reduces shafting space, and further improve
The precision of shafting, while a load can be respectively installed in left and right ends, add bearing capacity.
2nd, at the dress school of precision bearing system on propose a kind of " complementary shafting Reference Transforming method ".Routine is for such as scheming institute
When " the encircling type precision bearing system " shown, encoder and torque machine adjustment, due to needing before precision bearing system does not assemble just
Encoder and the installation of torque machine are carried out, " blind dress " as a result can only be taken, can not guarantee adjustment precision, can not also carry out precision tune
It is whole.Complementary shafting Reference Transforming method has carried out Reference Transforming using auxiliary mould shafting, solves " encircling type shafting " coding
The accurate dress school problem such as device, torque machine, encoder adjustment precision are guaranteed.
The present invention has been subjected to Practical Project checking, practical, and shafting precision, encoder angle measurement accuracy, shafting regulate and control
Precision all obtains height and ensured.
3rd, the present invention shares main shaft system and an angular contact ball bearing among auxiliary shafting as excessive part.According to group
Into shafting design principle, two complementary shafting structures are formd.Addition auxiliary shafting is a great innovation, using complementation
Formula structure is also a great innovation.
Brief description of the drawings
Fig. 1 is the shafting structure framework of simply supported beam form；
Fig. 2 is T-shaped shafting structure framework；
Fig. 3 is encircling type shafting structure framework of the present invention；
Fig. 4 represents main shaft system installation diagram；
Fig. 5 represents to be mounted with the middle adjustment structure for aiding in shafting；
Fig. 6 represents to pull down the installation diagram of central shaft；
Fig. 7 represents installation code-disc, the installation diagram of stator；
Fig. 8 represents the installation diagram of installation photoelectric switch blank and torque machine stator；
Fig. 9 represents torque machine rotor being connected with axle right-hand member, and loads the installation diagram of main shaft system；
Figure 10 represents to have pulled down the encircling type shafting structure figure of auxiliary shafting.
Wherein reference is：The angular contact ball bearings of 1- first, 2- angular contact ball bearing groups, which are repaiied, cuts pad, 3- bearing blocks, 4-
Encoder stator, which is repaiied, cuts pad, 5- encoders stator, 6- optoelectronic switches, 7- torques machine stator, 8- the second angular contact ball bearing external pressures
Trim ring, 10- torques machine rotor, 11- axles right-hand member, the angular contact ball bearings of 12- second, 13- light in circle, the angular contact ball bearings of 9- second
Electric switch shielding plate, 14- encoder rotors, 15- encoder rotors, which are repaiied, cuts pad, 16- axles left end, the angular contact ball bearings of 17- first
The outer trim ring of interior trim ring, the angular contact ball bearings of 18- first, 19- auxiliary moulds axle, 20- auxiliary moulds bearing block, 21- the third angles connect
The outer trim ring of trim ring, 23- the third angles contact ball bearing in tactile ball bearing, 22- the third angle contact ball bearings.
Embodiment
The present invention is according to the requirement of certain miniature precision shafting, and load is using T-shape distribution, in precision bearing system design, A ends
An angular contact ball bearing is respectively adopted with B ends, A, B end use " DB types " or " DF types " mounting means, by torque machine, encoder
It is installed on Deng component among a pair of angular contact ball bearing groups, two load are distributed in left and right both ends respectively.Its advantage is great
Axial design distance is saved so that precision bearing system overall dimensions and weight greatly reduce, and structure is as shown in Figure 3.
The operation principle of encircling type precision bearing system scheme：Precision bearing system is mainly pacified by a pair of angular contact ball bearing groups using DF
Dress form is formed, and angular contact ball bearing group is installed in bearing block 3, and it is (left and right with axle right-hand member 11 that brearing bore loads axle left end 16
Combined machining is needed to ensure axiality).Shafting pretightning force and shafting precision repair the regulation for cutting pad 2 by angular contact ball bearing group
Realize.The inner ring of first angular contact ball bearing 1 is compressed by trim ring 17 in the first angular contact ball bearing, outside the first angular contact ball bearing 1
Circle is compressed by trim ring 18 outside the first angular contact ball bearing；The inner ring of second angular contact ball bearing 12 is by the second angular contact ball bearing internal pressure
Circle 9 is compressed, and the outer ring of the second angular contact ball bearing 12 is compressed by trim ring 8 outside the second angular contact ball bearing.
Encoder rotor 14 is installed on axle left end 16, has encoder rotor between encoder rotor 14 and axle left end 16
Repair and cut pad 15；Encoder stator 5 is installed on bearing block 3, has encoder stator to repair between encoder stator 5 and bearing block 3
Cut pad 4；The rotor of encoder and the depth of parallelism of stator, interval are repaiied by encoder rotor cuts pad 15 and encoder stator is repaiied and cuts pad
Guarantee is ground in 4 repair；Encoder mainly realizes the angle of shafting and the collection of angular speed and control.
Optoelectronic switch shielding plate 13 is installed on encoder rotor 14, and optoelectronic switch 6 is installed on bearing block, is realized to axle
The working range control of system.Torque machine stator 7 is installed on bearing block 3, and torque machine rotor 10 is installed on axle right-hand member 11, mainly
Shafting rotary power is provided.
The operation principle of complementary auxiliary mould shafting：Because in this example, main shaft system employs a pair of DF installation forms
Angular contact ball bearing group, so auxiliary mould shafting uses complementary structure, i.e., the angular contact ball bearing group of a pair of DB mount types.
Auxiliary mould axle 19 is installed on the axle left end 16 of main shaft system, ensures its axle left end 16 with main shaft system, axle right-hand member
11 assemblys are coaxial.Auxiliary mould bearing block 20 is installed on the outer trim ring 18 of the angular contact ball bearing of main shaft system first.Frock shafting
The third angle contact ball bearing 21 is installed in auxiliary mould bearing block 20, is connect by auxiliary mould axle 19 through frock shafting the third angle
Ball bearing 21 is touched to position.The inner ring of the third angle contact ball bearing 21 is compressed by trim ring 22 in the third angle contact bearing, the third angle contact
The outer ring of ball bearing 21 is compressed by trim ring 23 outside the third angle contact ball bearing.First jiao of the third angle contact ball bearing 21 and main shaft system
Contact ball bearing 1 collectively constitutes the auxiliary mould shafting of a pair of DB installation forms.
The dress school side case of complementary shafting Reference Transforming method precision bearing system：
In shafting precision adjustment, dress school main shaft system (encoder, torque machine do not fill temporarily) accurate first, using main shaft system as
Benchmark, increase complementary auxiliary mould shafting；Remove main shaft system, accurate adjustment encoder, power on the basis of auxiliary mould shafting
Square machine；The adjustment main shaft system again on the basis of complementary auxiliary mould shafting；Remove auxiliary mould shafting, the precision of precision bearing system
School is filled to complete；Again respectively at both ends adjustment load on the basis of main shaft system.It is comprised the following steps that：
1】Main shaft system assembles (as shown in Figure 4)
By trim ring outside trim ring in central shaft, axle left end, axle right-hand member, bearing block, two angular contact ball bearings, bearing, bearing
Installed；
2】Increase complementary auxiliary mould shafting, auxiliary mould shafting and coaxial (such as Fig. 5 of main shaft system in the left end of main shaft system
It is shown), be specially：
2.1】Auxiliary mould axle is installed in axle left end, auxiliary mould axle includes center tooling shaft and centrally disposed tooling shaft
The radial dimension at both ends be more than center tooling shaft tooling shaft left end and tooling shaft right-hand member, center tooling shaft, tooling shaft left end and
Tooling shaft right-hand member is coaxially disposed, and the auxiliary mould axle and axle left end 16, the assembly of axle right-hand member 11 are coaxial；
2.2】The third angle contact ball bearing is arranged in auxiliary mould bearing block 20；
2.3】Auxiliary mould bearing block 20 is fixedly connected with trim ring outside the first angular contact ball bearing；Tooling shaft left end passes through
The third angle contact ball bearing is connected with auxiliary mould bearing block,
2.4】Trim ring and the third angle contact ball axle in the third angle contact ball bearing are set on the outside of the third angle contact ball bearing
Outer trim ring is held, trim ring is connected with tooling shaft left end by threaded fastener in the third angle contact ball bearing；The third angle contacts ball axle
Outer trim ring is held to be connected by threaded fastener with auxiliary mould bearing block left end；
2.5】Check that end is jumped, footpath is jumped and shafting is rocked.
3】Remove the connector (as shown in Figure 6) between central shaft and central shaft and bearing block；
4】It is defined by auxiliary mould shafting, installation encoder, torque machine；Specially：
4.1】Encoder rotor and encoder stator and axle left end are co-axially mounted, wherein encoder rotor leads to axle left end
Threaded fastener to be crossed to be fixedly connected, encoder stator is fixedly connected with (such as Fig. 7) with bearing block by threaded fastener,
4.2】Optoelectronic switch shielding plate 13 is installed on the right-hand member of encoder rotor 14, optoelectronic switch shielding plate 13 and axle left end
16 are co-axially mounted,
4.3】Optoelectronic switch 6 is fixedly connected with bearing block 3, torque machine stator 7 is fixedly connected with bearing block 3, torque
Machine stator 7 and axle left end 16 are coaxial,
4.4】Check that circular runout, end are jumped.
5】It is defined by auxiliary mould shafting, the connector (such as Fig. 9) between installation center axle and central shaft and bearing block；Tool
Body is：
5.1】By torque machine rotor set on center shaft, the right-hand member of torque machine rotor is fixedly connected with axle right-hand member；
5.2】Central shaft is loaded into bearing block, the left end of central shaft is fixedly connected with axle left end, axle right-hand member passes through corner connection
Contact bearing is connected with bearing block, and installs bearing internal pressure circle and the outer trim ring of bearing.
6】Remove auxiliary mould shafting and obtain the encircling type shafting structure (such as Figure 10) of the present invention；
7】On the basis of main shaft system, in the both ends adjustment load of main shaft.
Claims (6)
1. a kind of encircling type precision bearing system, including main shaft, bearing block (3), encoder, torque machine, the first angular contact ball bearing
(1), the second angular contact ball bearing (12), load 1 and load 2, it is characterised in that：
Radial dimension of the main shaft including central shaft and centrally disposed axle both ends is more than the axle left end (16) and axle of central shaft
Right-hand member (11), the axle left end (16), axle right-hand member (11) and central axis are set, and the axle right-hand member (11) is one with central shaft
Body structure, the axle left end (16) are connected with central shaft by threaded fastener；
The bearing block (3) has the two first axle bearing bore being coaxially disposed in left and right and second bearing hole, first angular contact
Ball bearing (1) and the second angular contact ball bearing (12) are located in first axle bearing bore and second bearing hole respectively, the axle left end
(16) it is connected by the first angular contact ball bearing (1) with bearing block (3), the axle right-hand member (11) passes through the second angular contact ball bearing
(12) it is connected with bearing block (3),
The outside of first angular contact ball bearing (1) sets trim ring (17) and the first angular contact ball in the first angular contact ball bearing
The outer trim ring (18) of bearing, trim ring (17) is connected by threaded fastener and axle left end (16) in first angular contact ball bearing,
The outer trim ring (18) of first angular contact ball bearing is connected by threaded fastener and bearing block (3) left end；Second corner connection
The outside for touching ball bearing (12) sets trim ring (9) and the outer trim ring (8) of the second angular contact ball bearing, institute in the second angular contact ball bearing
State trim ring (9) in the second angular contact ball bearing to be connected by threaded fastener and axle right-hand member (11), the second angular contact ball axle
Outer trim ring (8) is held to be connected by threaded fastener and bearing block (3) right-hand member；
The encoder and torque machine are set on the main shaft between two angular contact ball bearings, and load 1 and load 2 are located at two respectively
On main shaft on the outside of individual angular contact ball bearing.
2. encircling type precision bearing system according to claim 1, it is characterised in that：
Encoder rotor (14) is installed on axle left end (16), has encoder between encoder rotor (14) and axle left end (16)
Rotor, which is repaiied, cuts pad (15)；Encoder stator (5) is installed on bearing block (3), between encoder stator (5) and bearing block (3)
There is encoder stator to repair and cut pad (4)；The rotor of encoder and the depth of parallelism of stator, interval are repaiied by encoder rotor and cut pad (15)
Repaiied with encoder stator and cut repairing for pad (4) and grind guarantee；
Optoelectronic switch shielding plate (13) is installed on encoder rotor (14), and optoelectronic switch (6) is installed on bearing block, realization pair
The working range control of shafting；
Torque machine stator (7) is installed on bearing block (3), and torque machine rotor (10) is installed on axle right-hand member (11).
3. encircling type precision bearing system according to claim 1 or 2, it is characterised in that：First angular contact ball bearing (1) and the
Two angular contact ball bearings (12) form DF or DB installation forms.
A kind of 4. middle adjustment structure of encircling type precision bearing system, it is characterised in that：Including main shaft system and auxiliary mould shafting, institute
Stating main shaft system includes main shaft, bearing block (3), encoder, torque machine, the first angular contact ball bearing (1) and the second angular contact ball axle
Hold (12), it is characterised in that：
Radial dimension of the main shaft including central shaft and centrally disposed axle both ends is more than the axle left end (16) and axle of central shaft
Right-hand member (11), the axle left end (16), axle right-hand member (11) and central axis are set, and the axle right-hand member (11) is one with central shaft
Body structure, the axle left end (16) are connected with central shaft by threaded fastener；
The bearing block (3) has the two first axle bearing bore being coaxially disposed in left and right and second bearing hole, first angular contact
Ball bearing (1) and the second angular contact ball bearing (12) are located in first axle bearing bore and second bearing hole respectively, the axle left end
(16) it is connected by the first angular contact ball bearing (1) with bearing block (3), the axle right-hand member (11) passes through the second angular contact ball bearing
(12) it is connected with bearing block (3)；
Trim ring is separately provided for compressing in the bearing of bearing inner race on the outside of each angular contact ball bearing and for compression axis
The outer trim ring of the bearing of bearing outer-ring, trim ring is connected by threaded fastener with axle left end and axle right-hand member respectively in two bearings, two
The outer trim ring of bearing is connected to the both sides of bearing block (3) by threaded fastener；
The auxiliary mould shafting includes auxiliary mould bearing block (20), auxiliary mould axle (19), the third angle contact ball bearing
(21), trim ring (22) in the outer trim ring (23) of the third angle contact ball bearing and the third angle contact ball bearing, the auxiliary mould axle
(19) the axle left end (16) of main shaft system, the auxiliary mould axle (19) and axle left end (16), axle right-hand member (11) assembly are installed on
Coaxially；The auxiliary mould bearing block (20) is installed on the outer trim ring (18) of the first angular contact ball bearing of main shaft system, the third angle
Contact ball bearing (21) is installed in auxiliary mould bearing block (20), and the third angle contact ball bearing (21) inner ring is contacted by the third angle
Trim ring (22) is compressed in ball bearing, and the third angle contact ball bearing (21) outer ring is pressed by trim ring (23) outside the third angle contact ball bearing
Tightly.
5. the middle adjustment structure of encircling type precision bearing system according to claim 4, it is characterised in that：First angular contact ball
Bearing (1) contacts ball with the second angular contact ball bearing (12) composition DF installation forms, the first angular contact ball bearing (1) with the third angle
Bearing (21) composition uses DB installation forms.
6. the middle adjustment structure of encircling type precision bearing system according to claim 4, it is characterised in that：First angular contact ball
Bearing (1) contacts ball with the second angular contact ball bearing (12) composition DB installation forms, the first angular contact ball bearing (1) with the third angle
Bearing (21) composition uses DF installation forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510849148.7A CN105333109B (en) | 2015-11-27 | 2015-11-27 | A kind of encircling type precision bearing system and in-between adjustment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510849148.7A CN105333109B (en) | 2015-11-27 | 2015-11-27 | A kind of encircling type precision bearing system and in-between adjustment structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105333109A CN105333109A (en) | 2016-02-17 |
| CN105333109B true CN105333109B (en) | 2017-12-05 |
Family
ID=55283809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510849148.7A Active CN105333109B (en) | 2015-11-27 | 2015-11-27 | A kind of encircling type precision bearing system and in-between adjustment structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105333109B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178145A (en) * | 2020-08-31 | 2021-01-05 | 河北汉光重工有限责任公司 | Structure is eliminated to photoelectric rotary table azimuth axis horizontal beat |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010014517A (en) * | 2008-07-03 | 2010-01-21 | Shin Ei Tech:Kk | Connection structure of rotary encoder |
| CN103470735A (en) * | 2013-09-09 | 2013-12-25 | 中科院南京天文仪器有限公司 | Single-row angular contact ball bearing paired-mounting method and structure |
| CN104266667A (en) * | 2014-09-30 | 2015-01-07 | 中国科学院西安光学精密机械研究所 | Optical encoder installation structure and encoder installation method |
| CN205298477U (en) * | 2015-11-27 | 2016-06-08 | 中国科学院西安光学精密机械研究所 | Accurate shafting of formula of surrouning and structure is debug to centre thereof |
-
2015
- 2015-11-27 CN CN201510849148.7A patent/CN105333109B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010014517A (en) * | 2008-07-03 | 2010-01-21 | Shin Ei Tech:Kk | Connection structure of rotary encoder |
| CN103470735A (en) * | 2013-09-09 | 2013-12-25 | 中科院南京天文仪器有限公司 | Single-row angular contact ball bearing paired-mounting method and structure |
| CN104266667A (en) * | 2014-09-30 | 2015-01-07 | 中国科学院西安光学精密机械研究所 | Optical encoder installation structure and encoder installation method |
| CN205298477U (en) * | 2015-11-27 | 2016-06-08 | 中国科学院西安光学精密机械研究所 | Accurate shafting of formula of surrouning and structure is debug to centre thereof |
Non-Patent Citations (1)
| Title |
|---|
| 《复合式光电编码器精密轴系设计及准确度分析》;梁立辉等;《光子学报》;20101231;第39卷(第12期);第2194-2199页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105333109A (en) | 2016-02-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102931760A (en) | Compact electric servo mechanism for linear displacement | |
| US20140157906A1 (en) | Circular load cell strain sensor configuration | |
| CN103433705B (en) | The processing technology of robot RV reducer pin wheel housing | |
| CN104190959B (en) | There is the Aerostatic Spindle of turn error monitoring function | |
| CN205298477U (en) | Accurate shafting of formula of surrouning and structure is debug to centre thereof | |
| CN103158025B (en) | A kind of bearing integral supporting structure for ball-screw support end | |
| CN102699691A (en) | Precision numerical control rotary workbench | |
| CN105333109B (en) | A kind of encircling type precision bearing system and in-between adjustment structure | |
| CN105014104A (en) | External-adjustable constant-pressure pre-tightening device for motorized spindle | |
| CN103939345B (en) | A kind of axial force automatic control tegulatingdevice for double-screw compressor and regulating method | |
| US9004233B2 (en) | Combined thrust bearing/load cell for brake actuators | |
| CN202462082U (en) | Nut direct-driven numerical control feeding device | |
| CN109305339B (en) | Three-redundancy full-electric brake actuating system | |
| CN105422645B (en) | A kind of Method of Adjustment of encircling type precision bearing system | |
| CN105889315A (en) | Rolling bearing and a mechanical system comprising such a rolling bearing | |
| CN209053960U (en) | A kind of pivot structure | |
| CN101758456A (en) | Vertical dynamic/static piezoelectric main shaft | |
| CN201863122U (en) | Grinding head for static pressure electric main shaft | |
| CN205190684U (en) | Silencing device of hub connection | |
| CN204052940U (en) | A kind of the Aerostatic Spindle with turn error monitoring function | |
| CN203596699U (en) | Motor with adjustable axial clearance | |
| CN102748398A (en) | Combined bearing clearance accurate adjustment nut for eliminating run-out errors | |
| CN203796895U (en) | Worm gear combination slewing bearing | |
| CN201774356U (en) | Constant pressure preloading device for main shaft bearings of high-speed built-in motor | |
| CN102072250A (en) | Homopolar type radial magnetic suspension bearing and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |