CN104325158A - Machine tool transmission shaft provided with auxiliary supporter - Google Patents
Machine tool transmission shaft provided with auxiliary supporter Download PDFInfo
- Publication number
- CN104325158A CN104325158A CN201410582458.2A CN201410582458A CN104325158A CN 104325158 A CN104325158 A CN 104325158A CN 201410582458 A CN201410582458 A CN 201410582458A CN 104325158 A CN104325158 A CN 104325158A
- Authority
- CN
- China
- Prior art keywords
- bearing
- transmission shaft
- machine tool
- main shaft
- shifting slide
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
Abstract
The invention discloses a machine tool transmission shaft provided with an auxiliary supporter. The machine tool transmission shaft comprises a main shaft, wherein one end of the main shaft is provided with a front bearing, the other end of the main shaft is provided with a back bearing, and the outer side of the back bearing is provided with a press cover. The machine tool transmission shaft is characterized in that the main shaft is also provided with a middle bearing arranged between the front bearing and the back bearing, a first slide moving gear is arranged between the back bearing and the middle bearing, the first slide moving gear is arranged on the main shaft through a first key, a second slide moving gear is arranged between the front bearing and the middle bearing, the second slide moving gear is arranged on the main shaft through a second key, and the first slide moving gear and the second slide moving gear form a duplex slide moving gear. The auxiliary supporter is arranged on the transmission shaft and is used for buffering the axial force due to the gear slide moving, and the poor dynamic balance performance, or even the influence on the service life of the transmission shaft due to abrasion easily caused by long-time operation of the transmission shaft can be avoided.
Description
Technical field
The present invention relates to a kind of transmission shaft of machine tool being provided with aiding support.
Background technology
The transmission system of general lathe has multiple power transmission shaft, one of them power transmission shaft can be provided with a pair double crosslinking sliding gear, one of them shifting slide gear is for changing the gearratio between power transmission shaft and power transmission shaft, and another shifting slide gear is for changing the gearratio between power transmission shaft and main shaft.
But during due to gear slippage, the power transmission shaft of existing design will bear certain axial force, so cause power transmission shaft easily to occur wearing and tearing, cause dynamic balance performance poor, even affect the service life of power transmission shaft.
Summary of the invention
For the problems referred to above, the invention provides a kind of transmission shaft of machine tool being provided with aiding support, power transmission shaft arranges aiding support, cushion the axial force because gear slippage brings, power transmission shaft long time running is avoided easily to occur wearing and tearing, cause dynamic balance performance poor, even affect the service life of power transmission shaft.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of transmission shaft of machine tool being provided with aiding support, comprise main shaft, described main shaft one end is provided with fore bearing, the other end is provided with rear bearing, described rear bearing arranged outside has gland, it is characterized in that, described main shaft is also provided with middle (center) bearing between fore bearing and rear bearing, the first shifting slide gear is provided with between described rear bearing and middle (center) bearing, described first shifting slide gear is arranged on main shaft by the first key, the second shifting slide gear is provided with between described fore bearing and middle (center) bearing, described second shifting slide gear is arranged on main shaft by the second key, described first shifting slide gear and the second shifting slide gear form double crosslinking sliding gear.
Wherein, preferably, fore bearing and middle (center) bearing are all cylinder roller bearings.
Preferably, rear bearing 3 is ball bearings.
First shifting slide gear and the second shifting slide gear form double crosslinking sliding gear, wherein, first shifting slide gear is for changing the gearratio between other power transmission shaft of the power transmission shaft of this structure and machine tool transmission system, and the second shifting slide gear is for changing the gearratio between the power transmission shaft of this structure and the driving shaft of machine tool transmission system.When gear slippage, because the two ends of main shaft and centre use cylinder roller bearing, cylinder roller bearing and ball bearing as aiding support successively, effectively can cushion the axial force because gear slippage brings, power transmission shaft long time running is avoided easily to occur wearing and tearing, cause dynamic balance performance poor, even affect the service life of power transmission shaft.
The invention has the beneficial effects as follows: aiding support is set on power transmission shaft, cushion the axial force because gear slippage brings, avoid power transmission shaft long time running easily to occur wearing and tearing, cause dynamic balance performance poor, even affect the service life of power transmission shaft.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention is provided with the transmission shaft of machine tool of aiding support;
The mark implication of accompanying drawing is as follows:
1: fore bearing; 2: middle (center) bearing; 3: rear bearing; 4: gland; 5: the first keys; 6: screw; 7: main shaft; 8: the second keys; 9: the first back-up rings; 10: the second back-up rings; 11: the first shifting slide gears; 12: the second shifting slide gears.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, technical solution of the present invention is described in further detail, can better understand the present invention to make those skilled in the art and can be implemented, but illustrated embodiment is not as a limitation of the invention.
A kind of transmission shaft of machine tool being provided with aiding support, as shown in Figure 1, comprise main shaft 7, described main shaft 7 one end (right side namely in figure) is provided with fore bearing 1, the other end (left side namely in figure) is provided with rear bearing 3, described rear bearing 3 arranged outside has gland 4, and preferably, gland 4 is fixed on outside rear bearing 3 by screw 6.
Described main shaft 7 is also provided with middle (center) bearing 2 between fore bearing 1 and rear bearing 3, the first shifting slide gear 11 is provided with between described rear bearing 3 and middle (center) bearing 2, described first shifting slide gear 11 is arranged on main shaft 7 by the first key 5, the second shifting slide gear 12 is provided with between described fore bearing 1 and middle (center) bearing 2, described second shifting slide gear 12 is arranged on main shaft 7 by the second key 8, and described first shifting slide gear 11 and the second shifting slide gear 12 form double crosslinking sliding gear.
First shifting slide gear 11 is provided with the first back-up ring 9, second shifting slide gear 12 and middle (center) bearing 2 one end is provided with the second back-up ring 10 near middle (center) bearing 2 one end.
Preferably, fore bearing 1 and middle (center) bearing 2 are all cylinder roller bearings.
Preferably, rear bearing 3 is ball bearings.
First shifting slide gear 11 and the second shifting slide gear 12 form double crosslinking sliding gear, wherein, first shifting slide gear 11 is for changing the gearratio between other power transmission shaft of the power transmission shaft of this structure and machine tool transmission system, and the second shifting slide gear 12 is for changing the gearratio between the power transmission shaft of this structure and the driving shaft of machine tool transmission system.When gear slippage, because the two ends of main shaft 7 and centre use cylinder roller bearing 1, cylinder roller bearing 2 and ball bearing 3 as aiding support successively, effectively can cushion the axial force because gear slippage brings, power transmission shaft long time running is avoided easily to occur wearing and tearing, cause dynamic balance performance poor, even affect the service life of power transmission shaft.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in the technical field that other are relevant, be all in like manner included in scope of patent protection of the present invention.
Claims (6)
1. one kind is provided with the transmission shaft of machine tool of aiding support, comprise main shaft (7), described main shaft (7) one end is provided with fore bearing (1), the other end is provided with rear bearing (3), described rear bearing (3) arranged outside has gland (4), it is characterized in that, described main shaft (7) is also provided with middle (center) bearing (2) between fore bearing (1) and rear bearing (3), the first shifting slide gear (11) is provided with between described rear bearing (3) and middle (center) bearing (2), described first shifting slide gear (11) is arranged on main shaft (7) by the first key (5), the second shifting slide gear (12) is provided with between described fore bearing (1) and middle (center) bearing (2), described second shifting slide gear (12) is arranged on main shaft (7) by the second key (8), described first shifting slide gear (11) and the second shifting slide gear (12) form double crosslinking sliding gear.
2. a kind of transmission shaft of machine tool being provided with aiding support according to claim 1, is characterized in that, described fore bearing (1) and middle (center) bearing (2) are all cylinder roller bearings.
3. a kind of transmission shaft of machine tool being provided with aiding support according to claim 2, is characterized in that, described rear bearing (3) is ball bearing.
4. a kind of transmission shaft of machine tool being provided with aiding support according to claim 3, is characterized in that, described first shifting slide gear (11) is provided with the first back-up ring (9) near middle (center) bearing (2) one end.
5. a kind of transmission shaft of machine tool being provided with aiding support according to claim 4, is characterized in that, described second shifting slide gear (12) is provided with the second back-up ring (10) near middle (center) bearing (2) one end.
6. a kind of transmission shaft of machine tool being provided with aiding support according to claim 1, is characterized in that, described gland (4) is fixed on rear bearing (3) outside by screw (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410582458.2A CN104325158A (en) | 2014-10-28 | 2014-10-28 | Machine tool transmission shaft provided with auxiliary supporter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410582458.2A CN104325158A (en) | 2014-10-28 | 2014-10-28 | Machine tool transmission shaft provided with auxiliary supporter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104325158A true CN104325158A (en) | 2015-02-04 |
Family
ID=52400029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410582458.2A Pending CN104325158A (en) | 2014-10-28 | 2014-10-28 | Machine tool transmission shaft provided with auxiliary supporter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104325158A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1491132A (en) * | 1961-06-17 | 1977-11-09 | Precision Industrielle | Machine tool spindle assemblies |
| DE19545272A1 (en) * | 1994-12-07 | 1996-06-13 | Boris Dr Ing Vites | Centrifugal regulator for controlling bearing prestresses used in high-speed machining |
| CN2772686Y (en) * | 2004-10-11 | 2006-04-19 | 李维谦 | Main shaft of lathe |
| CN203791641U (en) * | 2014-02-21 | 2014-08-27 | 山东方达机械有限公司 | Spindle of numerically-controlled lathe |
| CN204234751U (en) * | 2014-10-28 | 2015-04-01 | 蒋瑾 | Be provided with the transmission shaft of machine tool of aiding support |
-
2014
- 2014-10-28 CN CN201410582458.2A patent/CN104325158A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1491132A (en) * | 1961-06-17 | 1977-11-09 | Precision Industrielle | Machine tool spindle assemblies |
| DE19545272A1 (en) * | 1994-12-07 | 1996-06-13 | Boris Dr Ing Vites | Centrifugal regulator for controlling bearing prestresses used in high-speed machining |
| CN2772686Y (en) * | 2004-10-11 | 2006-04-19 | 李维谦 | Main shaft of lathe |
| CN203791641U (en) * | 2014-02-21 | 2014-08-27 | 山东方达机械有限公司 | Spindle of numerically-controlled lathe |
| CN204234751U (en) * | 2014-10-28 | 2015-04-01 | 蒋瑾 | Be provided with the transmission shaft of machine tool of aiding support |
Non-Patent Citations (1)
| Title |
|---|
| 龚仲华: "《现代数控机床设计典例》", 30 April 2014, 机械工业出版社 * |
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