CN203062506U - Oversized ball-milling mechanical grinding carriage spindle - Google Patents
Oversized ball-milling mechanical grinding carriage spindle Download PDFInfo
- Publication number
- CN203062506U CN203062506U CN 201320054718 CN201320054718U CN203062506U CN 203062506 U CN203062506 U CN 203062506U CN 201320054718 CN201320054718 CN 201320054718 CN 201320054718 U CN201320054718 U CN 201320054718U CN 203062506 U CN203062506 U CN 203062506U
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- China
- Prior art keywords
- main shaft
- sleeve
- spindle
- grinding carriage
- spindle body
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Abstract
The utility model relates to a large ball valve spindle, in particular to an oversized ball-milling mechanical grinding carriage spindle. The grinding carriage spindle comprises a spindle body, a spindle body sleeve, a front cover and a rear cover, wherein the front cover and the rear cover are fixed at the two ends of the spindle body sleeve by fasteners respectively; the front end of the spindle body is mounted on the inner side of the front cover of the spindle body sleeve in a sleeving manner by an angular contact ball bearing pack; a front blocking edge and a rear blocking edge are arranged; the angular contact ball bearing pack is mounted on the inner side of the rear cover of the spindle body sleeve in a sleeving manner; a hollow cooling structure is formed between the middle part of the spindle body sleeve and the middle part of the spindle body; and the front end of the spindle body is in an external cone structure. The grinding carriage spindle adopts the hollow cooling structure, so that a front part working area of the spindle body can be kept in a normal temperature state for working; the precision and the strength of the grinding carriage spindle can be improved; the service life of the grinding carriage spindle can be prolonged; a spring seat and a spring cushion are arranged at the rear end of the spindle body, so that a bearing backlash can be eliminated; the external cone structure is arranged at the front end of the spindle body, so that a tool can be connected; and mounting and locating effects are good.
Description
Technical field
The utility model relates to a kind of large-scale ball valve main shaft, particularly a kind of super large ball milling machinery grinding carriage main shaft.
Background technology
The mill crudy of super large ball milling machinery grinding carriage main shaft is one of major event index of examination product quality, directly influence product quality and working (machining) efficiency, and how can correct, efficient super large ball milling machinery grinding carriage main shaft 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 that effectively solves.Present all multiple enterprises are not grasped its technology to this, the part enterprise configuration becomes grinding tool to carry out grinding, but the radius of curvature of circle is different in the different bearings, need the different grinding tool of configuration, the production cost height, working (machining) efficiency is low or two ditches of bearing holder (housing, cover) axle sleeve are adopted turn around twice grinding or separately grinding, inconsistent and mismachining tolerance because of bearing holder (housing, cover) axle sleeve width dimensions, cause the distance between bearing two ditches discrete bigger, qualification rate is lower, reworks are more, and product quality is difficult to control effectively, and reliability and security that product uses are unfavorable, the emery wheel vibrations are big, pass to emery wheel after the axle head heating, cause emery wheel place bearing very easily to damage, can't satisfy steady in a long-term production.Rigidity is relatively 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 ball milling machinery grinding carriage main shaft in conjunction with the working site actual conditions.
According to design provided by the utility model, a kind of super large ball milling machinery grinding carriage main shaft, contain main shaft, the main shaft sleeve, protecgulum and bonnet, protecgulum and bonnet are fixed on the two ends of main shaft sleeve respectively by securing member, it is characterized in that: the main shaft front end is set in main shaft sleeve protecgulum inboard by the angular contact ball bearing group, protecgulum is provided with front stopping edge, the main shaft barrel forward end is provided with back stopping edge, the two ends difference roof pressure of angular contact ball bearing group outer shaft is before this, on the back stopping edge, the internal axle sleeve one end roof pressure of bearing group is on the shaft shoulder of main shaft, the other end is fixed by being threaded by preceding nut, preceding nut sleeve is loaded on the axle sleeve of main shaft front end, the main shaft rear end is set in main shaft sleeve bonnet inboard by the angular contact ball bearing group, form the cooling structure of hollow between main shaft sleeve middle part and the main shaft middle part, described main shaft front end is connected with grinding carriage by outer wimble structure, and fix by the emery wheel nut, the main shaft rear end is by the fixedly connected belt wheel of belt wheel nut.
Be provided with dottle pin between each bearing of angular contact ball bearing group, dottle pin and outer dottle pin in this dottle pin comprises, interior dottle pin roof pressure is on the internal axle sleeve of adjacent bearing, and outer dottle pin roof pressure is on the outer shaft of adjacent bearing.
Be set with axle rotary oil seal and back spacer between bonnet and the main shaft, axle is set between bonnet and the back spacer with rotary oil seal, the inboard of the adjacent bearing group spacer in main shaft rear end is provided with spring base, the uniform spring groove that is provided with around this spring base, be set with spring in each spring groove vertically, the spring base front end sleeve is equipped with the ring spring pad, each spring roof pressure is on ring spring pad end face, the other end roof pressure of this ring spring pad is on the interior retaining edge of main shaft sleeve rear end, the two ends difference roof pressure of the angular contact ball bearing group outer shaft of main shaft rear end is in the bonnet inboard, on the retaining edge of spring base, roof pressure is on the shaft shoulder and back spacer of main shaft rear end respectively for internal axle sleeve one end of bearing group, and back nut is set in the spacer outside, back.
Seal cover and sealing ring before being respectively installed with between described protecgulum and the bearing front end, this preceding seal cover and sealing ring convex-concave cooperate the formation labyrinth seal structure.
The beneficial effects of the utility model:
1, the utility model super large ball milling machinery grinding carriage main shaft adopts the cooling structure of hollow, can guarantee that the anterior working region of main shaft is under the normal temperature state to work, and improves its precision, intensity and service life.
2, the main shaft rear end of the utility model super large ball milling machinery grinding carriage main shaft is provided with spring base and spring pad, this spring assembly is used for applying the precompressed load to the 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 the utility model super large ball milling machinery grinding carriage main shaft has outer wimble structure, but fastening means is installed good positioning effect.
Description of drawings:
Fig. 1 is the utility model super large ball milling machinery grinding carriage main axle structure schematic diagram.
The specific embodiment:
Number in the figure 1 represents the emery wheel nut, seal cover before label 2 representatives, label 3 represents sealing ring, and label 4 represents protecgulum, the outer dottle pin of label 5 representatives, 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 the main shaft sleeve, and label 12 represents spring pad, and label 13 represents spring base, label 14 represents bonnet, label 15 represents axle and uses rotary oil seal, label 16 to represent the back spacer, and label 17 represents belt wheel, label 18 represents the belt wheel nut, and label 19 represents back nut.
Participate in Fig. 1, a kind of super large ball milling machinery grinding carriage main shaft, contain main shaft 9, main shaft sleeve 11, protecgulum 4 and bonnet 14, protecgulum 4 and bonnet 14 are fixed on the two ends of main shaft sleeve 11 respectively by securing member, the main shaft front end is set in protecgulum 4 inboards 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 difference roof pressure of 6 groups of outer shafts of angular contact ball bearing is before this, on the back stopping edge, the internal axle sleeve one end roof pressure of bearing group is on the shaft shoulder of main shaft 9, the other end is fixed by being threaded by preceding nut 8, preceding nut 8 is set on the axle sleeve of main shaft 9 front ends, main shaft 9 rear ends are set in bonnet 14 inboards of main shaft sleeve 11 by 6 groups of angular contact ball bearings, form the cooling structure 10 of hollow between main shaft sleeve 11 middle parts and main shaft 9 middle parts, autonomous cooling, can improve its service life, described main shaft 9 front ends are connected with grinding carriage by outer wimble structure, and it is fixing by emery wheel nut 1, main shaft 9 rear ends are by belt wheel nut 18 fixedly connected belt wheels 17, handling good, easily install.
Be provided with dottle pin between 6 groups of each bearings of angular contact ball bearing, dottle pin 7 and outer dottle pin 5 in this dottle pin comprises, interior dottle pin 7 roof pressures are on the internal axle sleeve of adjacent bearing, and outer dottle pin 5 roof pressures are on the outer shaft of adjacent bearing.
Be set with axle rotary oil seal 15 and back spacer 16 between bonnet 14 and the main shaft 9, axle is set between bonnet 14 and the back spacer 16 with rotary oil seal 15, the inboard of the adjacent bearing group spacer in main shaft 9 rear ends is provided with spring base 13, the uniform spring groove that is provided with around this spring base 13, be set with spring in each spring groove vertically, spring base 13 front end sleeves are equipped with ring spring pad 12, each spring roof pressure is on ring spring pad 12 end faces, the other end roof pressure of this ring spring pad 12 is on the interior retaining edge of main shaft sleeve 11 rear ends, the two ends difference roof pressure of 6 groups of outer shafts of angular contact ball bearing of main shaft 9 rear ends is in bonnet 14 inboards, on the retaining edge of spring base 13, roof pressure is on the shaft shoulder and back spacer 16 of main shaft 9 rear ends respectively for internal axle sleeve one end of bearing group, and back nut 19 is set in the spacer outside, back.
Seal cover 2 and sealing ring 3 before being respectively installed with between described protecgulum 4 and the bearing front end, this preceding seal cover 2 and sealing ring 3 convex-concaves cooperate the formation labyrinth seal structure, can prevent that dust from entering in the bearing group good sealing effect.
Claims (4)
1. super large ball milling machinery grinding carriage main shaft, contain main shaft, the main shaft sleeve, protecgulum and bonnet, protecgulum and bonnet are fixed on the two ends of main shaft sleeve respectively by securing member, it is characterized in that: the main shaft front end is set in main shaft sleeve protecgulum inboard by the angular contact ball bearing group, protecgulum is provided with front stopping edge, the main shaft barrel forward end is provided with back stopping edge, the two ends difference roof pressure of angular contact ball bearing group outer shaft is before this, on the back stopping edge, the internal axle sleeve one end roof pressure of bearing group is on the shaft shoulder of main shaft, the other end is fixed by being threaded by preceding nut, preceding nut sleeve is loaded on the axle sleeve of main shaft front end, the main shaft rear end is set in main shaft sleeve bonnet inboard by the angular contact ball bearing group, form the cooling structure of hollow between main shaft sleeve middle part and the main shaft middle part, described main shaft front end is connected with grinding carriage by outer wimble structure, and fix by the emery wheel nut, the main shaft rear end is by the fixedly connected belt wheel of belt wheel nut.
2. super large ball milling according to claim 1 machinery grinding carriage main shaft, it is characterized in that: be provided with dottle pin between each bearing of angular contact ball bearing group, dottle pin and outer dottle pin in this dottle pin comprises, interior dottle pin roof pressure is on the internal axle sleeve of adjacent bearing, and outer dottle pin roof pressure is on the outer shaft of adjacent bearing.
3. super large ball milling according to claim 1 machinery grinding carriage main shaft, it is characterized in that: be set with axle rotary oil seal and back spacer between bonnet and the main shaft, axle is set between bonnet and the back spacer with rotary oil seal, the inboard of the adjacent bearing group spacer in main shaft rear end is provided with spring base, the uniform spring groove that is provided with around this spring base, be set with spring in each spring groove vertically, the spring base front end sleeve is equipped with the ring spring pad, each spring roof pressure is on ring spring pad end face, the other end roof pressure of this ring spring pad is on the interior retaining edge of main shaft sleeve rear end, the two ends difference roof pressure of the angular contact ball bearing group outer shaft of main shaft rear end is in the bonnet inboard, on the retaining edge of spring base, roof pressure is on the shaft shoulder and back spacer of main shaft rear end respectively for internal axle sleeve one end of bearing group, and back nut is set in the spacer outside, back.
4. super large ball milling machinery grinding carriage main shaft according to claim 1 is characterized in that: seal cover and sealing ring before being respectively installed with between described protecgulum and the bearing front end, this preceding seal cover and sealing ring convex-concave cooperation formation labyrinth seal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320054718 CN203062506U (en) | 2013-01-31 | 2013-01-31 | Oversized ball-milling mechanical grinding carriage spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320054718 CN203062506U (en) | 2013-01-31 | 2013-01-31 | Oversized ball-milling mechanical grinding carriage spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203062506U true CN203062506U (en) | 2013-07-17 |
Family
ID=48761332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320054718 Expired - Lifetime CN203062506U (en) | 2013-01-31 | 2013-01-31 | Oversized ball-milling mechanical grinding carriage spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203062506U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962946A (en) * | 2013-01-31 | 2014-08-06 | 安阳斯普机械有限公司 | Oversized ball-milling mechanical grinding carriage main shaft |
| CN114941693A (en) * | 2022-05-31 | 2022-08-26 | 浙江台玖精密机械有限公司 | High-precision worm gear speed reducer for medical push rod and assembling method |
-
2013
- 2013-01-31 CN CN 201320054718 patent/CN203062506U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962946A (en) * | 2013-01-31 | 2014-08-06 | 安阳斯普机械有限公司 | Oversized ball-milling mechanical grinding carriage main shaft |
| CN114941693A (en) * | 2022-05-31 | 2022-08-26 | 浙江台玖精密机械有限公司 | High-precision worm gear speed reducer for medical push rod and assembling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |
|
| CX01 | Expiry of patent term |