CN201432130Y - Structure of transmission pair of spindle of DXM008 boring lathe - Google Patents
Structure of transmission pair of spindle of DXM008 boring lathe Download PDFInfo
- Publication number
- CN201432130Y CN201432130Y CN2009203020919U CN200920302091U CN201432130Y CN 201432130 Y CN201432130 Y CN 201432130Y CN 2009203020919 U CN2009203020919 U CN 2009203020919U CN 200920302091 U CN200920302091 U CN 200920302091U CN 201432130 Y CN201432130 Y CN 201432130Y
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- bearing
- dxm008
- spindle
- boring
- boring lathe
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Abstract
The utility model discloses the structure of the transmission pair of the spindle of a DXM008 boring lathe, which is characterized in that: an originally used common combined bearing is replaced by anNSK universal combination; and a retaining nut is adjusted by a torque wrench according to a required clearance. The structure has the advantages of improving the installation structure of the bearing pack of the spindle of the boring lathe, prolonging the service life of the bearings and improving the machining accuracy of the boring lathe.
Description
Technical field:
The utility model relates to a kind of mechanical processing industry, relates in particular to the improvement of DXM008 boring spindle structure.
Technical background:
At mechanical processing industry, all than higher, key depends on the installation accuracy of main shaft to the boring machine machining accuracy usually.For the DXM008 boring machine, its main shaft is that the rolling bearing group supports, the end-play of bearing is very big to the influence of machine finish, especially under the environment of high-speed overload, the intensification of spindle drive pair is than higher, and the size of control end-play just more seems important, and end-play is too big, the main shaft circular runout is excessive, does not reach requirement on machining accuracy; End-play is too small, and the high-speed overload temperature is too high, the accident that main shaft rapid wear even locking cause lathe to damage.What the main shaft of past DXM008 boring machine adopted is homemade D446208 and D246108 combination bearing (seeing accompanying drawing 1 for details), when spindle mounted, the end-play of D446208 mainly relies on the length difference of bearing inner spacing collar 1 and outer separator 1 to adjust, need mounting or dismounting repeatedly when therefore assembling, the length of grinding inner spacing collar 1 repeatedly, just can adjust to suitable play size, waste time and energy very much, lathe uses a period of time, and the main shaft circular runout is just excessive, needs to change bearing, if serious wear, also to change machine tool chief axis, have a strong impact on ordinary production, cause a large amount of wastes.
The utility model content:
The utility model mainly solves DXM008 boring spindle transmission end-play and is difficult to control, and the problem that wastes time and energy is installed in debugging repeatedly.
Another problem that the utility model solves is that DXM008 boring spindle transmission end-play can't be adjusted the problem that bearing life is too short.
The utility model solves the problems of the technologies described above the technical scheme that is adopted and provides: a kind of structure of DXM008 boring spindle transmission: it is characterized in that: two the bearing 7208CTYNSULP4 that are connected in series on the shaft shoulder of main shaft, by an outer shroud lining, be connected back-to-back with a 7208CTYNSULP4 bearing again, be connected back-to-back with two 7008CTYNSULP4 bearings by an interior lining papers cover, connect a locking nut by an interior lining papers cover again; External bushing of first series connection bearing 7208CTYNSULP4 is connected with the flange of spindle hole end, and the outer shroud that connects the 7208CTYNSULP4 bearing back-to-back offsets by the step of another outer neck bush and spindle hole inside.
This bearing group is to rely on end face flange and spindle hole step to carry out two-way location in the axial location of spindle hole, and the axial location of main shaft is fixing by the shaft shoulder and locking nut.The end play of bearing group is two groups of 7208CTYNSULP4 and 7008CTYNSULP4 bearing group back-to-back, give tight power by locking nut and adjust end-play, giving tight power size controls by torque spanner, recommendation tables according to locking nut screwing power is selected 64Nm, the comprehensive end-play of bearing group is the 0.01-0.03 millimeter, guarantee that suitable end-play remedies that main shaft rotates at a high speed and the thermal stretching that produces, thereby guarantee that main shaft runs well.The circular runout precision is brought up in 0.005 by original 0.01 after the spindle mounted, and conduit after the processing and seat ring hole were all better in precision and roughness.Heating and shake cutter phenomenon did not appear, the life-span of bearing also improves, every mistake 4 months, the screwing force of a locking nut of adjustment, guaranteed that promptly machining accuracy has prolonged the service life of bearing again, the life-span of such supplementary bearing group was increased to about 1 year by original 5 months.
The beneficial effect that the improvement of a kind of DXM008 boring spindle of the utility model structure brings is: the original general combination bearing that uses is replaced with the omnipotent combination of NSK, utilize torque spanner to adjust the structure of locking nut according to the size of required play, improved the mounting structure of boring spindle bearing group, prolong the service life of bearing, improved the machining accuracy of boring machine.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of former DXM008 boring spindle transmission.
Fig. 2 is the structural representation of a kind of DXM008 boring spindle of the utility model transmission.
The specific embodiment:
Embodiment: according to shown in Figure 2, rear end at DXM008 boring spindle 00 is inserted in flange 10 earlier, bearing 21 (7208CTYNSULP4) is installed, the bearing back-to-back 22 (7208CTYNSULP4) that external bushing 11 is arranged in the middle of installing one group again, add neck bush 13 and be inserted in other 1 group of bearing 23 (7008CTYNSULP4) back-to-back again, be inserted in neck bush 14 and screw in locking nuts 01, use torque spanner, be set at 64Nm, locking.
During use, all bearings are added the senior white grease of WG 3 types, be inserted in outer neck bush 12, whole main shaft is packed in the spindle hole of machine, and adpting flange 10 and main shaft casing are promptly finished the installation task, start main frame, improve rotary speed gradually by low speed, bearing is from little by little extruding the grease of enclosing between roller surface and the bearing roller, and Here it is, and the so-called break-in that reaches between the proper lubrication state is lubricated.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technical staff of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (3)
1. the structure of a DXM008 boring spindle transmission: it is characterized in that: two the bearing 7208CTYNSULP4 that are connected in series on the shaft shoulder of main shaft, by an outer shroud lining, be connected back-to-back with a 7208CTYNSULP4 bearing again, be connected back-to-back with two 7008CTYNSULP4 bearings by an interior lining papers cover, connect a locking nut by an interior lining papers cover again; External bushing of first series connection bearing 7208CTYNSULP4 is connected with the flange of spindle hole end, and the outer shroud that connects the 7208CTYNSULP4 bearing back-to-back offsets by the step of another outer neck bush and spindle hole inside.
2. the structure of a kind of DXM008 boring spindle transmission according to claim 1 is characterized in that, described flange is threaded with the boring spindle transmission case.
3. the structure of a kind of DXM008 boring spindle transmission according to claim 1 is characterized in that described locking nut is locked by torque spanner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203020919U CN201432130Y (en) | 2009-04-13 | 2009-04-13 | Structure of transmission pair of spindle of DXM008 boring lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203020919U CN201432130Y (en) | 2009-04-13 | 2009-04-13 | Structure of transmission pair of spindle of DXM008 boring lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201432130Y true CN201432130Y (en) | 2010-03-31 |
Family
ID=42050944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203020919U Expired - Lifetime CN201432130Y (en) | 2009-04-13 | 2009-04-13 | Structure of transmission pair of spindle of DXM008 boring lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201432130Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107738084A (en) * | 2017-10-09 | 2018-02-27 | 广州市昊志机电股份有限公司 | A kind of device and main shaft for adjusting bearing clearance |
-
2009
- 2009-04-13 CN CN2009203020919U patent/CN201432130Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107738084A (en) * | 2017-10-09 | 2018-02-27 | 广州市昊志机电股份有限公司 | A kind of device and main shaft for adjusting bearing clearance |
| CN107738084B (en) * | 2017-10-09 | 2024-02-27 | 广州市昊志机电股份有限公司 | Device and main shaft of adjustment bearing play |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JINAN GEELY AUTO SPARE PARTS CO., LTD. HUNAN LUOYO Free format text: FORMER OWNER: ZHEJIANG GEELY HOLDING GROUP CO., LTD. Effective date: 20130117 Owner name: ZHEJIANG GEELY LUOYOU ENGINE CO., LTD. Free format text: FORMER OWNER: ZHEJIANG GEELY AUTOMOBILE CO., LTD. Effective date: 20130117 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130117 Address after: 315800 Zhejiang city of Ningbo province Beilun xinqie street Mt. Hengshan Road No. 1528 Patentee after: Zhejiang Geely Luoyou Engine Co., Ltd. Patentee after: Ji'nan Geely Auto Parts Co., Ltd. Patentee after: Hunan Luoyou Engine Parts Co., Ltd. Patentee after: Zhejiang Geely Holding Group Co., Ltd. Address before: 315800, No. 1528, Mt. Hengshan Road, Ningbo economic and Technological Development Zone, Zhejiang Patentee before: Zhejiang Geely Automobile Co., Ltd. Patentee before: Zhejiang Geely Holding Group Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100331 |
|
| CX01 | Expiry of patent term |