CN103962946A - Oversized ball-milling mechanical grinding carriage main shaft - Google Patents
Oversized ball-milling mechanical grinding carriage main shaft Download PDFInfo
- Publication number
- CN103962946A CN103962946A CN201310037999.2A CN201310037999A CN103962946A CN 103962946 A CN103962946 A CN 103962946A CN 201310037999 A CN201310037999 A CN 201310037999A CN 103962946 A CN103962946 A CN 103962946A
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- China
- Prior art keywords
- main shaft
- sleeve
- shaft body
- pressed
- grinding carriage
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a large ball valve main shaft, in particular to an oversized ball-milling mechanical grinding carriage main shaft. The oversized ball-milling mechanical grinding carriage main shaft comprises a main shaft body, a main shaft body sleeve, a front cover and a rear cover, wherein the front cover and the rear cover are fixed to the two ends of the main shaft body sleeve respectively through fastening pieces; the front end of the main shaft body is mounted on the inner side of the front cover of the main shaft body sleeve in a sleeving way through an angular contact ball bearing group; a front stopping edge and a rear stopping edge are arranged; the rear end of the main shaft body is mounted on the inner side of the rear cover of the main shaft body sleeve in a sleeving way through an angular contact ball bearing group; a hollow cooling structure is formed between the middle parts of the main shaft body sleeve and the main shaft body; the front end of the main shaft body adopts an external cone structure. According to the invention, as the hollow cooling structure is adopted, the working area in front of the main shaft body can be ensured in normal-temperature-status operation, the precision and strength of the oversized ball-milling mechanical grinding carriage main shaft are improved, and the service life thereof is prolonged; as spring seats and spring cushions are arranged at the rear end of the main shaft body, the bearing clearance is eliminated; the front end of the main shaft body adopts the external cone structure, which can be connected with a tool, so that the mounting and positioning effects are good.
Description
Technical field
The present invention relates to a kind of large-scale ball valve main shaft, particularly a kind of super large mechanical mill main shaft of grinding carriage.
Background technology
The mill crudy of super large mechanical mill main shaft of grinding carriage is one of major event index of examination product quality, directly affect product quality and working (machining) efficiency, and how can correct, efficient super large mechanical mill main shaft of grinding carriage processed and the qualification rate that improves product be current many Production of bearing enterprise's long-term existence and fail one of technical barrier effectively solving.Current all multiple enterprises are not grasped its technology to this, Some Enterprises is configured to grinding tool and carries out grinding, but the radius of curvature of different bearing inner circles is different, need to configure different grinding tools, production cost is high, working (machining) efficiency is low or two ditches of bearing holder (housing, cover) axle sleeve are adopted to turn around twice grinding or separately grinding, because of the inconsistent and mismachining tolerance of bearing holder (housing, cover) axle sleeve width dimensions, cause the distance between bearing two ditches discrete larger, qualification rate is lower, reworks are more, product quality is difficult to control effectively, reliability and security that product uses are unfavorable, emery wheel vibrations are large, after axle head heating, pass to emery wheel, cause emery wheel place bearing very easily to damage, cannot meet steady in a long-term production.Rigidity is poor, increase pressure that can not be too much, inefficiency.
Summary of the invention
In order to overcome deficiency of the prior art, we design a kind of super large mechanical mill main shaft of grinding carriage in conjunction with working site actual conditions.
According to design provided by the present invention, a kind of super large mechanical mill main shaft of grinding carriage, contain main shaft, main shaft sleeve, protecgulum and bonnet, protecgulum and bonnet are fixed on respectively the two ends of main shaft sleeve by securing member, it is characterized in that: main shaft front end is set in main shaft sleeve protecgulum inner side by angular contact ball bearing group, protecgulum is provided with front stopping edge, main shaft barrel forward end is provided with back stopping edge, the two ends of angular contact ball bearing group outer shaft are pushed up respectively and are pressed in before this, on back stopping edge, the top, internal axle sleeve one end of bearing group is pressed on the shaft shoulder of main shaft, the other end is threaded connection and is fixed by front nut, front nut sleeve is loaded on the axle sleeve of main shaft front end, main shaft rear end is set in main shaft sleeve bonnet inner side by angular contact ball bearing group, between main shaft sleeve middle part and main shaft middle part, form the cooling structure of hollow, described main shaft front end is connected with grinding carriage by outer wimble structure, and fix by emery wheel nut, main shaft rear end is fixedly connected with belt wheel by belt wheel nut.
Between the each bearing of angular contact ball bearing group, be provided with dottle pin, this dottle pin comprises interior dottle pin and outer dottle pin, and interior dottle pin top is pressed on the internal axle sleeve of adjacent bearing, and outer dottle pin top is pressed on the outer shaft of adjacent bearing.
Between bonnet and main shaft, be set with axle rotary oil seal and rear spacer, axle is set between bonnet and rear spacer with rotary oil seal, the inner side of the adjacent bearing group spacer in main shaft rear end is provided with spring base, the uniform spring groove that is provided with of surrounding of this spring base, in each spring groove, be set with vertically spring, spring base front end sleeve is equipped with ring spring pad, each spring top is pressed on ring spring pad end face, the top, other end of this ring spring pad is pressed in the interior block edge of main shaft sleeve rear end, the two ends of the angular contact ball bearing group outer shaft of main shaft rear end are pushed up respectively and are pressed in bonnet inner side, in the block edge of spring base, push up respectively on the shaft shoulder that is pressed in main shaft rear end and on rear spacer internal axle sleeve one end of bearing group, back nut is set in rear spacer outside.
Between described protecgulum and bearing front end, be respectively installed with front seal cover and sealing ring, this front seal cover and sealing ring convex-concave coordinate formation labyrinth seal structure.
Beneficial effect of the present invention:
1, super large mechanical mill main shaft of grinding carriage of the present invention adopts the cooling structure of hollow, can ensure that the anterior working region of main shaft works under normal temperature state, improves its precision, intensity and service life.
2, the main shaft rear end of super large mechanical mill main shaft of grinding carriage of the present invention is provided with spring base and spring pad, this spring assembly is for applying precompressed load to front and back bearings group, eliminate bearing clearance, guarantee that spindle operation is steady, the inside and outside dottle pin height processing of bearing group is consistent, makes main shaft stand under load after assembling even.
3, the main shaft front end of super large mechanical mill main shaft of grinding carriage of the present invention has outer wimble structure, can fastening means, good positioning effect is installed.
brief description of the drawings:
Fig. 1 is super large mechanical mill main shaft of grinding carriage structural representation of the present invention.
detailed description of the invention:
Number in the figure 1 represents emery wheel nut, seal cover before label 2 representatives, label 3 represents sealing ring, label 4 represents protecgulum, the outer dottle pin of label 5 representative, label 6 represents angular contact ball bearing, dottle pin in label 7 representatives, nut before label 8 representatives, label 9 represents main shaft, label 10 represents cooling structure, label 11 represents main shaft sleeve, label 12 represents spring pad, label 13 represents spring base, label 14 represents bonnet, label 15 represents axle rotary oil seal, spacer after label 16 representatives, label 17 represents belt wheel, label 18 represents belt wheel nut, label 19 represents back nut.
Participate in Fig. 1, a kind of super large mechanical mill main shaft of grinding carriage, contain main shaft 9, main shaft sleeve 11, protecgulum 4 and bonnet 14, protecgulum 4 and bonnet 14 are fixed on respectively the two ends of main shaft sleeve 11 by securing member, main shaft front end is set in protecgulum 4 inner sides of main shaft sleeve 11 by 6 groups of angular contact ball bearings, protecgulum 4 is provided with front stopping edge, main shaft sleeve 11 front ends are provided with back stopping edge, the two ends of 6 groups of outer shafts of angular contact ball bearing are pushed up respectively and are pressed in before this, on back stopping edge, the top, internal axle sleeve one end of bearing group is pressed on the shaft shoulder of main shaft 9, the other end is threaded connection and is fixed by front nut 8, front nut 8 is set on the axle sleeve of main shaft 9 front ends, main shaft 9 rear ends are set in bonnet 14 inner sides of main shaft sleeve 11 by 6 groups of angular contact ball bearings, between main shaft sleeve 11 middle parts and main shaft 9 middle parts, form the cooling structure 10 of hollow, independently cooling, can improve its service life, described main shaft 9 front ends are connected with grinding carriage by outer wimble structure, and fixing by emery wheel nut 1, main shaft 9 rear ends are fixedly connected with belt wheel 17 by belt wheel nut 18, handling good, easily install.
Between 6 groups of each bearings of angular contact ball bearing, be provided with dottle pin, this dottle pin comprises interior dottle pin 7 and outer dottle pin 5, and interior dottle pin 7 tops are pressed on the internal axle sleeve of adjacent bearing, and outer dottle pin 5 tops are pressed on the outer shaft of adjacent bearing.
Between bonnet 14 and main shaft 9, be set with axle rotary oil seal 15 and rear spacer 16, axle is set between bonnet 14 and rear spacer 16 with rotary oil seal 15, the inner side of the main shaft 9 adjacent bearing group spacers in rear end is provided with spring base 13, the uniform spring groove that is provided with of surrounding of this spring base 13, in each spring groove, be set with vertically spring, spring base 13 front end sleeves are equipped with ring spring pad 12, each spring top is pressed on ring spring pad 12 end faces, the top, other end of this ring spring pad 12 is pressed in the interior block edge of main shaft sleeve 11 rear ends, the two ends of 6 groups of outer shafts of angular contact ball bearing of main shaft 9 rear ends are pushed up respectively and are pressed in bonnet 14 inner sides, in the block edge of spring base 13, push up respectively on the shaft shoulder and rear spacer 16 that is pressed in main shaft 9 rear ends internal axle sleeve one end of bearing group, back nut 19 is set in rear spacer outside.
Between described protecgulum 4 and bearing front end, be respectively installed with front seal cover 2 and sealing ring 3, this front seal cover 2 and sealing ring 3 convex-concaves coordinate formation labyrinth seal structure, can prevent that dust from entering in bearing group, good sealing effect.
Claims (4)
1. a super large mechanical mill main shaft of grinding carriage, contain main shaft, main shaft sleeve, protecgulum and bonnet, protecgulum and bonnet are fixed on respectively the two ends of main shaft sleeve by securing member, it is characterized in that: main shaft front end is set in main shaft sleeve protecgulum inner side by angular contact ball bearing group, protecgulum is provided with front stopping edge, main shaft barrel forward end is provided with back stopping edge, the two ends of angular contact ball bearing group outer shaft are pushed up respectively and are pressed in before this, on back stopping edge, the top, internal axle sleeve one end of bearing group is pressed on the shaft shoulder of main shaft, the other end is threaded connection and is fixed by front nut, front nut sleeve is loaded on the axle sleeve of main shaft front end, main shaft rear end is set in main shaft sleeve bonnet inner side by angular contact ball bearing group, between main shaft sleeve middle part and main shaft middle part, form the cooling structure of hollow, described main shaft front end is connected with grinding carriage by outer wimble structure, and fix by emery wheel nut, main shaft rear end is fixedly connected with belt wheel by belt wheel nut.
2. super large mechanical mill main shaft of grinding carriage according to claim 1, it is characterized in that: between the each bearing of angular contact ball bearing group, be provided with dottle pin, this dottle pin comprises interior dottle pin and outer dottle pin, and interior dottle pin top is pressed on the internal axle sleeve of adjacent bearing, and outer dottle pin top is pressed on the outer shaft of adjacent bearing.
3. super large mechanical mill main shaft of grinding carriage according to claim 1, it is characterized in that: between bonnet and main shaft, be set with axle rotary oil seal and rear spacer, axle is set between bonnet and rear spacer with rotary oil seal, the inner side of the adjacent bearing group spacer in main shaft rear end is provided with spring base, the uniform spring groove that is provided with of surrounding of this spring base, in each spring groove, be set with vertically spring, spring base front end sleeve is equipped with ring spring pad, each spring top is pressed on ring spring pad end face, the top, other end of this ring spring pad is pressed in the interior block edge of main shaft sleeve rear end, the two ends of the angular contact ball bearing group outer shaft of main shaft rear end are pushed up respectively and are pressed in bonnet inner side, in the block edge of spring base, push up respectively on the shaft shoulder that is pressed in main shaft rear end and on rear spacer internal axle sleeve one end of bearing group, back nut is set in rear spacer outside.
4. super large mechanical mill main shaft of grinding carriage according to claim 1, is characterized in that: between described protecgulum and bearing front end, be respectively installed with front seal cover and sealing ring, this front seal cover and sealing ring convex-concave coordinate formation labyrinth seal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310037999.2A CN103962946A (en) | 2013-01-31 | 2013-01-31 | Oversized ball-milling mechanical grinding carriage main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310037999.2A CN103962946A (en) | 2013-01-31 | 2013-01-31 | Oversized ball-milling mechanical grinding carriage main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103962946A true CN103962946A (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310037999.2A Pending CN103962946A (en) | 2013-01-31 | 2013-01-31 | Oversized ball-milling mechanical grinding carriage main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103962946A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113084611A (en) * | 2021-04-30 | 2021-07-09 | 温州职业技术学院 | Automatic frosting device for inner wall of glass bottle mouth |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2035156A1 (en) * | 1969-07-17 | 1971-02-04 | N. Schlumberger & Cie., Guebwiller, Haut Rhin (Frankreich) | Grinding machine |
| CN2659633Y (en) * | 2003-10-15 | 2004-12-01 | 济南四机数控机床有限公司 | Grinder grinding carriage with axially reciprocating shaking function |
| CN2928385Y (en) * | 2006-06-10 | 2007-08-01 | 上海机床厂有限公司 | Dynmaic and static pressure bearing grinder emergy wheel frame of axial reciprocating shivering |
| CN203062506U (en) * | 2013-01-31 | 2013-07-17 | 安阳斯普机械有限公司 | Oversized ball-milling mechanical grinding carriage spindle |
-
2013
- 2013-01-31 CN CN201310037999.2A patent/CN103962946A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2035156A1 (en) * | 1969-07-17 | 1971-02-04 | N. Schlumberger & Cie., Guebwiller, Haut Rhin (Frankreich) | Grinding machine |
| CN2659633Y (en) * | 2003-10-15 | 2004-12-01 | 济南四机数控机床有限公司 | Grinder grinding carriage with axially reciprocating shaking function |
| CN2928385Y (en) * | 2006-06-10 | 2007-08-01 | 上海机床厂有限公司 | Dynmaic and static pressure bearing grinder emergy wheel frame of axial reciprocating shivering |
| CN203062506U (en) * | 2013-01-31 | 2013-07-17 | 安阳斯普机械有限公司 | Oversized ball-milling mechanical grinding carriage spindle |
Non-Patent Citations (2)
| Title |
|---|
| 上海机床厂磨床研究所: "《静压轴承在磨床上的应用 磨床砂轮架主轴结构 第2册》", 30 June 1971, article "一种磨床砂轮架主轴" * |
| 陈开君，范庆云: "磨床砂轮架主轴窜动故障的分析", 《机械制造》, vol. 48, no. 548, 30 April 2010 (2010-04-30) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113084611A (en) * | 2021-04-30 | 2021-07-09 | 温州职业技术学院 | Automatic frosting device for inner wall of glass bottle mouth |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140806 |