CN204430286U - A kind of for machine tool chief axis belt wheel load removing device - Google Patents
A kind of for machine tool chief axis belt wheel load removing device Download PDFInfo
- Publication number
- CN204430286U CN204430286U CN201420872250.XU CN201420872250U CN204430286U CN 204430286 U CN204430286 U CN 204430286U CN 201420872250 U CN201420872250 U CN 201420872250U CN 204430286 U CN204430286 U CN 204430286U
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- CN
- China
- Prior art keywords
- belt wheel
- main shaft
- bearing
- unloading sleeve
- casing
- 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 a kind of for machine tool chief axis belt wheel load removing device, main contents are: described belt wheel is not direct and main shaft is connected, but a point two-way carries out: a road is that belt wheel left end face is connected by end cap and main shaft, and end cap and main shaft connect with the form of spline; To be belt wheel internal diameter be connected by right bearing and left bearing and unloading sleeve on another road, and unloading sleeve and casing are connected; When the pulley rotates, the pulling force of band acts on unloading sleeve by right bearing and left bearing; And one end of unloading sleeve is fixed on casing, this pulling force is released on casing finally by unloading sleeve, and the moment of flexure that main shaft bears is lowered even to be avoided, and reduces the loss of main shaft; On the other hand, belt wheel drives end cap to be connected transmitting torque by the form of spline and main shaft, achieves the transmission agency of whole main shaft system.The comprehensive rotating accuracy of the utility model is high, can transmit high-speed high-power moment of torsion; Improve stress and the related components duty of shafting structure axis.
Description
Technical field
The utility model relates to spindle technology field, particularly relates to a kind of for machine tool chief axis belt wheel load removing device.
Background technology
Along with improving constantly of machined part precision, more and more higher requirement be it is also proposed to the comprehensive rotating accuracy of high speed rotary main shaft, as some high-speed high-power high precision digital control lathes and machining center rotary main shaft rotating speed oneself reach more than 2000r/min.Reach the so high speed of mainshaft and the comprehensive rotating accuracy of main shaft, except improving the rotating accuracy of main shaft self, also should carry out to reduce with relief arrangement the radial forces of rear-end of spindle simultaneously.
Utility model content
According to above deficiency, the utility model provide a kind of compact conformation, comprehensive rotating accuracy high and axle system relative rigidity large for machine tool chief axis belt wheel load removing device.
For achieving the above object, the utility model is used for machine tool chief axis belt wheel load removing device, main contents are: comprise main shaft, combination bearing, casing, spacer, unloading sleeve, right bearing, outer separator, inner spacing collar, belt wheel, screw, end cap, cover plate, spring collar, left bearing, sealing ring and locking nut, it is characterized in that, described combination bearing inner ring is arranged on main shaft right-hand member and its right side withstands on main shaft right-hand member step, described spacer is enclosed within main shaft and its right side and withstands on combination bearing inner ring left side, described locking nut is fixedly mounted on spindle thread and its right-hand member withstands on spacer left side, described combination bearing outer ring is arranged in casing endoporus and its right side and withstands on casing endoporus step, described unloading sleeve is fixedly mounted on casing left side by screw, unloading sleeve right side withstands on left side, combination bearing outer ring, between described unloading sleeve and casing left side, sealing ring is installed, described right bearing is arranged on the unloading sleeve left end face of cylinder and its inner ring withstands on unloading sleeve left end step, right bearing outer ring is arranged in belt wheel inner hole and its right side and withstands on belt wheel inner hole step, described left bearing is arranged on the unloading sleeve left end face of cylinder and its outer ring is arranged in belt wheel inner hole, between described right bearing and left bearing inner ring, inner spacing collar is installed, between described right bearing and left bearing outer ring, outer separator is installed, described left bearing inner ring left end is fixed by the spring collar be stuck in unloading sleeve groove, described end cap is fixedly mounted on belt wheel left side by screw, spline is processed with in described belt wheel centre bore, described main shaft left end is processed with spline, spline on described belt wheel and the spline engagement on main shaft, between described end cap right-hand member annular boss and belt wheel inner hole left end, sealing ring is installed, described cover plate is fixedly mounted in end cap left end groove by screw.
As preferably, described unloading sleeve left end external cylindrical surface is processed with ring-type draw-in groove.
As preferably, being interference fit between described combination bearing inner ring and main shaft, is matched in clearance between combination bearing outer ring and casing endoporus.
As preferably, described unloading sleeve right side is processed with annular groove.
As preferably, described end cap right-hand member annular boss external cylindrical surface is processed with annular groove.
The utility model beneficial effect is: comprehensive rotating accuracy is high, can transmit high-speed high-power moment of torsion; Improve axle system relative rigidity; Improve stress and the related components duty of shafting structure axis.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Description of reference numerals:
1-main shaft, 2-combination bearing, 3-casing, 4-spacer, 5-unloading sleeve, 6-right bearing, 7-outer separator, 8-inner spacing collar, 9-belt wheel, 10-screw, 11-end cap, 12-cover plate, 13-spring collar, 14-left bearing, 15-sealing ring, 16-locking nut.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model detailed description of the invention is described:
Embodiment, see accompanying drawing 1, a kind of for machine tool chief axis belt wheel load removing device, comprise main shaft 1, combination bearing 2, casing 3, spacer 4, unloading sleeve 5, right bearing 6, outer separator 7, inner spacing collar 8, belt wheel 9, screw 10, end cap 11, cover plate 12, spring collar 13, left bearing 14, sealing ring 15 and locking nut 16, it is characterized in that, described combination bearing 2 inner ring is arranged on main shaft 1 right-hand member and its right side withstands on main shaft 1 right-hand member step, described spacer 4 is enclosed within main shaft 1 and its right side and withstands on combination bearing 2 inner ring left side, described locking nut 16 is fixedly mounted on main shaft 1 screw thread and its right-hand member withstands on spacer 4 left side, described combination bearing 2 outer ring is arranged in casing 3 endoporus and its right side and withstands on casing 3 endoporus step, described unloading sleeve 5 is fixedly mounted on casing 3 left side by screw 10, unloading sleeve 5 right side withstands on left side, combination bearing 2 outer ring, between described unloading sleeve 5 and casing 3 left side, sealing ring 15 is installed, described right bearing 6 is arranged on the unloading sleeve 5 left end face of cylinder and its inner ring withstands on unloading sleeve 5 left end step, right bearing 6 outer ring is arranged in belt wheel 9 endoporus and its right side and withstands on belt wheel 9 endoporus step, described left bearing 14 is arranged on the unloading sleeve 5 left end face of cylinder and its outer ring and is arranged in belt wheel 9 endoporus, between described right bearing 6 and left bearing 14 inner ring, inner spacing collar 8 is installed, between described right bearing 6 and left bearing 14 outer ring, outer separator 7 is installed, described left bearing 14 inner ring left end is fixed by the spring collar 13 be stuck in unloading sleeve 5 groove, described end cap 11 is fixedly mounted on belt wheel 9 left side by screw 10, spline is processed with in described belt wheel 9 centre bore, described main shaft 1 left end is processed with spline, spline on described belt wheel 9 and the spline engagement on main shaft 1, between described end cap 11 right-hand member annular boss and belt wheel 9 endoporus left end, sealing ring 15 is installed, described cover plate 12 is fixedly mounted in end cap 11 left end groove by screw 10.
Described belt wheel 9 is not direct and main shaft 1 is connected, but a point two-way carries out: a road is that belt wheel 9 left end face is connected by end cap 11 and main shaft 1, and end cap 11 and main shaft 1 connect with the form of spline; Another road is that belt wheel 9 internal diameter is connected by right bearing 6 and left bearing 14 and unloading sleeve 5, and unloading sleeve 5 and casing 3 are connected.When belt wheel 9 rotates, first the pulling force of band acts on unloading sleeve 5 by right bearing 6 and left bearing 14; And one end of unloading sleeve 5 is fixed on casing 3, so this pulling force is released on casing 3 finally by unloading sleeve 5, instead of on main shaft 1, the moment of flexure that such main shaft 1 bears is lowered even to be avoided, and then reduces the loss of main shaft 1.On the other hand, belt wheel 9 drives end cap 11 to be connected transmitting torque by the form of spline and main shaft 1, achieves the transmission agency of whole main shaft system.
By reference to the accompanying drawings the utility model preferred embodiment is explained in detail above, but the utility model is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from the utility model aim.
Do not depart from design of the present utility model and scope can make many other and change and remodeling.Should be appreciated that the utility model is not limited to specific embodiment, scope of the present utility model is defined by the following claims.
Claims (5)
1. one kind for machine tool chief axis belt wheel load removing device, comprise main shaft (1), combination bearing (2), casing (3), spacer (4), unloading sleeve (5), right bearing (6), outer separator (7), inner spacing collar (8), belt wheel (9), screw (10), end cap (11), cover plate (12), spring collar (13), left bearing (14), sealing ring (15) and locking nut (16), it is characterized in that, described combination bearing (2) inner ring is arranged on main shaft (1) right-hand member and its right side withstands on main shaft (1) right-hand member step, described spacer (4) is enclosed within that main shaft (1) is upper and its right side withstands on combination bearing (2) inner ring left side, described locking nut (16) is fixedly mounted on main shaft (1) screw thread and its right-hand member withstands on spacer (4) left side, described combination bearing (2) outer ring is arranged in casing (3) endoporus and its right side and withstands on casing (3) endoporus step, described unloading sleeve (5) is fixedly mounted on casing (3) left side by screw (10), unloading sleeve (5) right side withstands on combination bearing (2) left side, outer ring, sealing ring (15) is installed between described unloading sleeve (5) and casing (3) left side, described right bearing (6) is arranged on unloading sleeve (5) the left end face of cylinder and its inner ring withstands on unloading sleeve (5) left end step, right bearing (6) outer ring is arranged in belt wheel (9) endoporus and its right side and withstands on belt wheel (9) endoporus step, described left bearing (14) is arranged on unloading sleeve (5) the left end face of cylinder and its outer ring and is arranged in belt wheel (9) endoporus, inner spacing collar (8) is installed between described right bearing (6) and left bearing (14) inner ring, outer separator (7) is installed between described right bearing (6) and left bearing (14) outer ring, described left bearing (14) inner ring left end is fixed by the spring collar (13) be stuck in unloading sleeve (5) groove, described end cap (11) is fixedly mounted on belt wheel (9) left side by screw (10), spline is processed with in described belt wheel (9) centre bore, described main shaft (1) left end is processed with spline, spline engagement on spline on described belt wheel (9) and main shaft (1), sealing ring (15) is installed between described end cap (11) right-hand member annular boss and belt wheel (9) endoporus left end, described cover plate (12) is fixedly mounted in end cap (11) left end groove by screw (10).
2. as claimed in claim 1 for machine tool chief axis belt wheel load removing device, it is characterized in that: described unloading sleeve (5) left end external cylindrical surface is processed with ring-type draw-in groove.
3. as claimed in claim 1 for machine tool chief axis belt wheel load removing device, it is characterized in that: being interference fit between described combination bearing (2) inner ring and main shaft (1), is matched in clearance between combination bearing (2) outer ring and casing (3) endoporus.
4. as claimed in claim 1 for machine tool chief axis belt wheel load removing device, it is characterized in that: described unloading sleeve (5) right side is processed with annular groove.
5. as claimed in claim 1 for machine tool chief axis belt wheel load removing device, it is characterized in that: described end cap (11) right-hand member annular boss external cylindrical surface is processed with annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420872250.XU CN204430286U (en) | 2014-12-30 | 2014-12-30 | A kind of for machine tool chief axis belt wheel load removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420872250.XU CN204430286U (en) | 2014-12-30 | 2014-12-30 | A kind of for machine tool chief axis belt wheel load removing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204430286U true CN204430286U (en) | 2015-07-01 |
Family
ID=53598206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420872250.XU Expired - Fee Related CN204430286U (en) | 2014-12-30 | 2014-12-30 | A kind of for machine tool chief axis belt wheel load removing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204430286U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107399669A (en) * | 2017-09-08 | 2017-11-28 | 芜湖市长江起重设备制造有限公司 | A kind of fixed pulley group structure of bridge crane |
| CN108620609A (en) * | 2018-06-21 | 2018-10-09 | 盐城工学院 | Main shaft off-load and damping device in a kind of V belt translation |
| CN109099137A (en) * | 2018-08-03 | 2018-12-28 | 南京金格尔齿轮箱有限公司 | Extruder gearbox belt wheel load removing device |
| CN109366204A (en) * | 2018-11-29 | 2019-02-22 | 济南第机床有限公司 | A kind of heavy type numerical control lathe spindle relief arrangement |
-
2014
- 2014-12-30 CN CN201420872250.XU patent/CN204430286U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107399669A (en) * | 2017-09-08 | 2017-11-28 | 芜湖市长江起重设备制造有限公司 | A kind of fixed pulley group structure of bridge crane |
| CN108620609A (en) * | 2018-06-21 | 2018-10-09 | 盐城工学院 | Main shaft off-load and damping device in a kind of V belt translation |
| CN109099137A (en) * | 2018-08-03 | 2018-12-28 | 南京金格尔齿轮箱有限公司 | Extruder gearbox belt wheel load removing device |
| CN109099137B (en) * | 2018-08-03 | 2021-10-08 | 南京金格尔齿轮箱有限公司 | Belt wheel unloading device of extruder gear box |
| CN109366204A (en) * | 2018-11-29 | 2019-02-22 | 济南第机床有限公司 | A kind of heavy type numerical control lathe spindle relief arrangement |
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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: 20150701 Termination date: 20151230 |
|
| EXPY | Termination of patent right or utility model |