CN203751965U - Automatic grinding and polishing machine axial unloading device - Google Patents
Automatic grinding and polishing machine axial unloading device Download PDFInfo
- Publication number
- CN203751965U CN203751965U CN201320832938.0U CN201320832938U CN203751965U CN 203751965 U CN203751965 U CN 203751965U CN 201320832938 U CN201320832938 U CN 201320832938U CN 203751965 U CN203751965 U CN 203751965U
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- CN
- China
- Prior art keywords
- rotor
- bearing
- ball bearing
- basal disc
- axial
- 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
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Abstract
The utility model discloses an automatic grinding and polishing machine axial unloading device. The device comprises a fixed sleeve, a rotor mounting basal disc, a radial ball bearing, an unloading ring, a bearing positioning plate and a thrust ball bearing, wherein the fixed sleeve is capable of sliding in the fixed sleeve; a buffer air pressure chamber is formed between the top pf the sliding sleeve and the bottom of the fixed sleeve; the rotor mounting basal disc is used for mounting a partition point stress application air cylinder and a gas distribution rotating barrel, is connected with a rotor driving element and is taken as a basic rotating component of a rotor part; the radial ball bearing is used for radial positioning and support of the rotor mounting basal disc; the unloading ring is connected with the sliding sleeve in thread connecting mode, and the inner side of the unloading ring compresses the end face of an outer ring of the radial ball bearing to realize the axial limit and compression of the rotor mounting basal disc; the bearing positioning plate is kept concentric with the rotor mounting basal disc by a central positioning pillar, and is connected with the mounting basal disc by screws; the excircle of the bearing positioning plate is matched with an inner hole in a lower ring of a thrust bearing, and the thrust bearing is axially positioned; the thrust ball bearing is radially positioned by the bearing positioning plate and is used for bearing an axial force. The automatic grinding and polishing machine axial unloading device has the beneficial effects that the axial force effect of a rotor component in work is eliminated, the axial abrasion of the radial ball bearing is greatly reduced, the rotation precision of a rotor is improved, and the mechanical service life of the rotator is prolonged.
Description
Technical field
The present invention relates to a kind of axial relief arrangement that automatically grinds-throw machine, belong to grinding-polishing field, described automatically grind-throwing machine refers to the mechanical devices such as autogenous mill, automatic polishing machine or automatic grind polishing all-in-one.
Background technology
Grind-throwing of the automatic metallic phase machine using at present in the time starting namely in the time just using noise less, use a period of time after noise increase gradually, and mechanical device entirety is can the operating period shorter.Trace it to its cause and be the radial ball bearing rapid wear under the effect of axial force in this device, make rotor produce circular runout and axial float, and then produce noise.
Grind-throwing machine, with the aggravation (essence is the increase in gap) of noise, makes the Quality Down of grinding, polished speciment, and when many polishings, the uniformity of quality is poor.
Of the present inventionly automatically grind-throw machine relief arrangement and invent design for solving the above quality problems that are prone to.
Summary of the invention
The problems referred to above that exist for prior art, the object of the present invention is to provide a kind of axial relief arrangement that grinds-throw machine that is applied to automatically, automatically grind-throw to solve in prior art the problem that machine noise is larger.
According to object of the present invention, propose one and automatically grind-throw arbor to relief arrangement, this device comprises: fixed muffle; Can in fixed muffle, make the sliding sleeve of sliding motion, between the top of sliding sleeve and the bottom of fixed muffle, form cushion gas pressure chamber; Rotor is installed basal disc, for the afterburning cylinder of branch and distribution rotating cylinder are installed, and is connected with rotor driving element, as the basic rotary part of rotor portion; Radial ball bearing, radial location and support that basal disc is installed for rotor; Off-load ring, adopts thread connecting mode to be connected with sliding sleeve, and interior side compression radial ball bearing cycle surface is realized axial limiting and the compression of rotor installation basal disc; Bearing location-plate, adopts centralized positioning post and rotor that basal disc is installed and keeps concentric, be connected as a single entity with screw and rotor installation basal disc, cylindrical with under thrust bearing, enclose endoporus and coordinate, make thrust bearing radial location; Thrust ball bearing, realizes radial location by bearing location-plate, for bearing axial force; Support housing, endoporus with under thrust ball bearing, enclose external diameter and coordinated radial location, be connected with bearing location-plate with screw, thereby make thrust ball bearing be pressed in off-load ring lower end; Mounting structure part, top lap, the two is connected as a single entity with mechanical connection manner and support housing, and can together rotate with rotor.
This structure leaves 0.2～0.5MM gap in the time manufacturing and designing between support housing inner face and bearing location-plate lower surface.Same 0.2～0.5MM gap of leaving between support housing end face suitable for reading and off-load ring.This gap can guarantee when support housing is subject to External Force Acting power to pass to thrust bearing, thereby reaches off-load object.
The invention process has the following advantages:
1. eliminate rotor part responsive to axial force at work, can greatly reduce the axial wearing and tearing of radial ball bearing, improve running accuracy and the mechanical service life of rotor.
2. relief arrangement has taken into full account that in the time manufacturing and designing motion wearing and tearing and foozle cause rotor in axial gap.The trip bolt of adjust, tightening between support housing and bearing location-plate can be eliminated end play, overcomes the axial float of rotor, improves mechanical Grinding Quality.
3. use for a long time, thrust bearing is during because of wear out failure, and it is convenient to change.Only need the trip bolt of dismounting support housing, take down support housing replaceable.
Brief description of the drawings
Accompanying drawing 1 grinds-throws the structural representation of arbor to relief arrangement automatically for the present invention.
Primary clustering symbol description:
1: fixed muffle; 2: sliding sleeve; 3: distribution rotating cylinder; 4: the afterburning cylinder of branch; 5: rotor is installed basal disc; 6: radial ball bearing; 7: off-load ring; 8: thrust ball bearing; 9: support housing; 10: mounting structure part; 11: top lap; 12: lower abrasive disk; 13: rotor driving element; 14: bearing location-plate; A: air-pressure chamber.
Detailed description of the invention
Referring to accompanying drawing 1, the present invention relates to one and automatically grind-throw arbor to relief arrangement, this device comprises: fixed muffle 1; Can, at the interior sliding sleeve 2 of making sliding motion of fixed muffle 1, between the top of sliding sleeve 2 and the bottom of fixed muffle 1, form cushion gas pressure chamber A; Rotor is installed basal disc 5, for the afterburning cylinder 4 of branch and distribution rotating cylinder 3 are installed, and is connected with rotor driving element 13, as the basic rotary part of rotor portion; Radial ball bearing 6, radial location and support that basal disc 5 is installed for rotor; Off-load ring 7, adopts thread connecting mode to be connected with sliding sleeve 2, and interior side compression radial ball bearing 6 cycle surfaces are realized axial limiting and the compression of rotor installation basal disc 5; Thrust ball bearing 8, for bearing axial force; Bearing location-plate 14, adopts centralized positioning post and rotor that basal disc 5 is installed and keeps concentric, with screw and rotor, basal disc 5 is installed and is connected as a single entity, and 8 times circle endoporus of its cylindrical and thrust ball bearing coordinate, and make thrust ball bearing 8 radial locations; Support housing 9,8 times circle external diameters of its endoporus and thrust ball bearing have coordinated radial location, be connected with screw, thereby make thrust ball bearing 8 be pressed in off-load ring 7 lower ends with bearing location-plate 14; This device also comprises: mounting structure part 10, and top lap 11, the two is connected in below support housing 9 with mechanical connection manner, and is connected as a single entity with support housing 9, can together rotate with rotor.
This structure leaves 0.2～0.5MM gap in the time manufacturing and designing between support housing 9 inner faces and bearing location-plate 14 lower surfaces.Same 0.2～0.5MM gap of leaving between support housing 9 end face suitable for reading and off-load ring 7.This gap can guarantee when support housing 9 is subject to External Force Acting power to pass to thrust ball bearing 8, thereby reaches off-load object.
In the time grinding, throw machine preparation, first (can be machinery or air pressure by external force, in this structure, mark A place for air-pressure chamber) promote sliding sleeve 2 and move down, rotor driven parts, top lap 11 and the test specimen of clamping in mill locating hole approach lower abrasive disk 12, and apply specified abrasive power.Its grind reaction force by top lap 11 and mounting structure part 10 transfer functions in support housing 9 lower surfaces, then by support housing 9 and thrust ball bearing 8 transition, reaction force (axial force) is all applied on off-load ring 7.Off-load ring 7 is threaded with sliding sleeve 2 (being equivalent to installation, supporter), can be considered entirety.Be that reaction axial force is finally born by sliding sleeve 2, via cushion gas pressure chamber A buffering, thereby eliminated rotor and be subject to the phenomenon of responsive to axial force.
It should be noted that; below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant or replacement to technical scheme of the present invention, these simple variant or replacement all belong to protection scope of the present invention.
Claims (3)
1. one kind is ground-throws arbor automatically to relief arrangement, it is characterized in that, this axial relief arrangement comprises: fixed muffle (1), sliding sleeve (2), sliding sleeve (2) can be made sliding motion in fixed muffle (1), between the top of sliding sleeve (2) and the bottom of fixed muffle (1), forms cushion gas pressure chamber (A); Rotor is installed basal disc (5), for branch afterburning cylinder (4) and distribution rotating cylinder (3) are installed, and is connected with rotor driving element (13), as the basic rotary part of rotor portion; Radial ball bearing (6), radial location and support that basal disc (5) is installed for rotor; Off-load ring (7), adopts thread connecting mode to be connected with sliding sleeve (2), interior side compression radial ball bearing (6) cycle surface, axial limiting and compression that basal disc (5) is installed to realize rotor; Thrust ball bearing (8), for bearing axial force; Bearing location-plate (14), adopt centralized positioning post and rotor that basal disc (5) is installed and keep concentric, with screw and rotor, basal disc (5) being installed is connected as a single entity, its cylindrical coordinates with the lower circle of thrust ball bearing (8) endoporus, makes thrust ball bearing (8) radial location; Support housing (9), its endoporus has coordinated radial location with the lower circle of thrust ball bearing (8) external diameter, be connected with bearing location-plate (14) with screw, thereby make thrust ball bearing (8) be pressed in off-load ring (7) lower end; This axial relief arrangement also comprises: mounting structure part (10) and top lap (11), the two is connected in support housing (9) below with mechanical connection manner, and be connected as a single entity with support housing (9), and can rotate together in company with rotor.
2. axial relief arrangement according to claim 1, it is characterized in that: between support housing (9) inner face and bearing location-plate (14) lower surface, and/or leave gap between support housing (9) end face suitable for reading and off-load ring (7), so that support housing (9) passes to thrust ball bearing (8) by power while being subject to External Force Acting.
3. axial relief arrangement according to claim 2, is characterized in that: described gap is 0.2～0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320832938.0U CN203751965U (en) | 2013-12-12 | 2013-12-12 | Automatic grinding and polishing machine axial unloading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320832938.0U CN203751965U (en) | 2013-12-12 | 2013-12-12 | Automatic grinding and polishing machine axial unloading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203751965U true CN203751965U (en) | 2014-08-06 |
Family
ID=51247274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320832938.0U Expired - Fee Related CN203751965U (en) | 2013-12-12 | 2013-12-12 | Automatic grinding and polishing machine axial unloading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203751965U (en) |
-
2013
- 2013-12-12 CN CN201320832938.0U patent/CN203751965U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20140806 Termination date: 20151212 |
|
| EXPY | Termination of patent right or utility model |