CN1871099A - Machine tool gear mechanism - Google Patents

Machine tool gear mechanism Download PDF

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Publication number
CN1871099A
CN1871099A CNA200480030997XA CN200480030997A CN1871099A CN 1871099 A CN1871099 A CN 1871099A CN A200480030997X A CNA200480030997X A CN A200480030997XA CN 200480030997 A CN200480030997 A CN 200480030997A CN 1871099 A CN1871099 A CN 1871099A
Authority
CN
China
Prior art keywords
gear
driven shaft
machine tool
box
main shaft
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
Application number
CNA200480030997XA
Other languages
Chinese (zh)
Inventor
哈拉尔德·埃克特
乌尔里希·路德维希·库切尔迈斯特
埃克哈德·福斯特
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of CN1871099A publication Critical patent/CN1871099A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/46—Gearings having only two central gears, connected by orbital gears
    • F16H3/48—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears
    • F16H3/52—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears
    • F16H3/54—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears one of the central gears being internally toothed and the other externally toothed
    • 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
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/12—Mechanical drives with means for varying the speed ratio
    • B23Q5/14—Mechanical drives with means for varying the speed ratio step-by-step
    • B23Q5/142—Mechanical drives with means for varying the speed ratio step-by-step mechanically-operated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0034—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising two forward speeds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms

Abstract

A machine tool transmission, in particular a spindle transmission, with which the force and/or the torque transfer from an output shaft ( 3 ) of a transmission ( 1 ) takes place directly on a spindle ( 15 ). The spindle ( 15 ) is placed co-axially over the output shaft ( 3 ).

Description

Machine tool gear mechanism
Technical field
The present invention relates to a kind of machine tool gear mechanism, particularly by claim 1 mainshaft gear case as described in the preamble.
Background technology
According to prior art, this gear-box and the coaxial setting of main shaft that generally includes two-stage planetary gear and corresponding jockey wherein, carries out the power transmission by means of belt or gear to main shaft.When using belt to carry out the power transmission, need the tension of high-drive torque lubricating and the wide bearing block of pre-tightening belt and wide size belt pulley.In addition, on the gear-box slave unit, need cylindrical roller bearing or similar rolling bearing, because belt force is very high.But disadvantageously bigger rolling bearing can only limitedly use under high rotating speed.Rolling bearing must have radial clearance for this reason, causes the interior uneven and vibration of pinion frame of gear-box.On the gear drive of main shaft, have under the helical teeth meshed gears situation for this reason, producing on the gear-box slave unit must the additional axial force that lowers.Other shortcomings of these solutions are, because the transmission of the power between gear-box and main shaft noise level is very high usually.
Summary of the invention
The objective of the invention is to, a kind of machine tool gear mechanism of avoiding the prior art shortcoming, particularly mainshaft gear case are provided.Particularly reducing noise level according in the gear-box of the present invention; In addition, avoid undesirable vibration as far as possible.Reduce manufacturing cost for this reason and optimize desired structure space.
This purpose is achieved by the feature of claim 1.Other formations and advantage are from dependent claims.
Propose a kind of mainshaft gear case in view of the above, wherein, power or moment are directly delivered on the main shaft from the driven shaft of gear-box, wherein, main shaft preferably with the coaxial setting of driven shaft.
In this case, the driven shaft of gear-box directly is connected with main shaft; Can moulding engage antitorque connection of ground between main shaft and the driven shaft with strength.Main shaft and and driven shaft between also can have connector.
According to a kind of embodiment that has advantage especially of the present invention, has the driven shaft that is bearing in transmission main shaft in the short bearing housing.Consequent advantage is obviously to shorten the total length of gear-box.
Be suitable for almost gapless bearing according to the present invention for the supporting driven shaft, image angle contact ball bearing for example, thus can with the moment of torsion friction be delivered on the main shaft.
Cancelled the belt that is used for main shaft or the necessity of gear drive by the foundation the solution of the present invention, thereby avoided the vibration that causes thus and noise, because the rotating speed that temperature rises and structure the causes restriction that the crooked work of belt causes.In addition, obviously provide cost savings by cancellation belt, belt pulley or gear; For example need not the gear on additional lubrication and the cooling slave unit.
Other advantages of the present invention are the oil consumption that reduce as far as possible between the bearing because be in this zone oil mass still less.
Gear-box need not slave unit is safeguarded in the mode with advantage; In gear-box, need to replenish tensioning or change belt according to prior art.In addition, avoid the mistake adjustment of belt pre-tensioning by direct moment of torsion transmission, this mistake adjustment causes damaging main shaft bearing on the one hand and causes belt creep on the other hand.Be improved the service life of main shaft bearing, because do not pass through belt force, tooth tangential force and responsive to axial force in the cross force of main shaft bearing.
All parts according to gear-box of the present invention all are arranged in the shell, thereby external factor is to not influence (for example the cooling agent mist can cause belt creep under the belt drive unit situation) of operation.Also improved job security by being arranged in the shell, because there are not the parts of outside rotation.
Description of drawings
By accompanying drawing the present invention is elaborated for example below, this accompanying drawing illustrates the constructed profile according to gear-box preferred implementation of the present invention.Concerning the professional, for example from applicant's EP 1 169582 B1, have known as employed epicyclic gearbox on the machine tool gear mechanism, particularly mainshaft gear case.But also can use the gear-box of other types.
The specific embodiment
Accompanying drawing illustrates mainshaft gear case 1, it comprise power transmission shaft 2, driven shaft 3 and be arranged on power transmission shaft and driven shaft between two-stage planetary gear on the line of force direction.Epicyclic gearbox has the sun gear 4 that is connected with power transmission shaft, be bearing in the ring gear 5 on the ring gear bearing 6 and constitute the planet carrier 7 and the planetary gear 8 of epicyclic gearbox slave unit.
For connecting gear-box, sliding sleeve 9 is provided, connects shift fork 10 and brake disc 11; Linkage unit comprises section magnetism 12, and it acts on and is connected the connecting rod 13 that shift fork 10 connects.Sliding sleeve can be accepted centre position, ring gear 5 and first link position of gearbox-case 14 couplings and second link position of ring gear 5 and sun gear 4 couplings in this case.
Driven shaft 3 is by means of angular contact ball bearing 16,17 supportings that are arranged in the bearing housing 15; Thus moment of torsion can by driven shaft 3 frictions be delivered on the main shaft, thereby therefore driven shaft 3 and main shaft directly are connected and can form a kind of coaxial and setting of saving structure space.
Self-evident; also can be gearbox parts, connection and linkage unit itself and the formation on any structure each other; setting on particularly any space; and it is importantly technical thus; the protection domain of this claim is not subjected to the influence of the function of gear-box described in the claim, though these formations do not have in the accompanying drawings clear and definite or specification in illustrated.
Reference numeral
1 machine tool gear mechanism
2 power transmission shafts
3 driven shafts
4 sun gears
5 ring gears
6 ring gear bearings
7 planet carriers
8 planetary gears
9 sliding sleeves
10 connect shift fork
11 brake discs
12 section magnetisms
13 connecting rods
14 gearbox-cases
15 bearing housings
16 angular contact ball bearings
17 angular contact ball bearings

Claims (4)

1. machine tool gear mechanism, particularly the mainshaft gear case is characterized in that, power or moment are directly delivered on the main shaft (15) from the driven shaft (3) of gear-box, wherein, main shaft (15) preferably with the coaxial setting of driven shaft (3).
2. by the described machine tool gear mechanism of claim 1, wherein, the driven shaft (3) of gear-box (1) is connected with main shaft, and wherein, moulding or strength engage the antitorque connection in ground between main shaft and the driven shaft (3).
3. by claim 1 or 2 described machine tool gear mechanisms, wherein, driven shaft (3) is bearing in the bearing housing (15), wherein, and the total length of shortening gear-box (1) thereby the driven shaft size shortens.
4. by claim 1,2 or 3 described machine tool gear mechanisms, wherein, has the angular contact ball bearing (16,17) that is used to support driven shaft (3).
CNA200480030997XA 2003-10-21 2004-09-29 Machine tool gear mechanism Pending CN1871099A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10348757.3 2003-10-21
DE2003148755 DE10348755A1 (en) 2003-10-21 2003-10-21 Machine tool gear mechanism for transferring power and/or torque from a driven shaft of the gear mechanism to a spindle comprises an integrated rotary transmission leadthrough that serves as a supply device for coolants, oil or air
DE10348755.7 2003-10-21
DE102004003685.3 2004-01-24
DE102004003684.5 2004-01-24

Publications (1)

Publication Number Publication Date
CN1871099A true CN1871099A (en) 2006-11-29

Family

ID=34608881

Family Applications (2)

Application Number Title Priority Date Filing Date
CNA200480030997XA Pending CN1871099A (en) 2003-10-21 2004-09-29 Machine tool gear mechanism
CN200480030916A Active CN100580275C (en) 2003-10-21 2004-09-29 Planetary gear

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN200480030916A Active CN100580275C (en) 2003-10-21 2004-09-29 Planetary gear

Country Status (3)

Country Link
CN (2) CN1871099A (en)
DE (1) DE10348755A1 (en)
TW (1) TWI342933B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005016177U1 (en) * 2005-10-12 2005-12-22 Dbt Gmbh First chisel support adjustment arrangement for production plane has gear mechanism consisting of planetary gear that is interposed between input shaft and worm wheel
DE102015100188B4 (en) * 2015-01-08 2017-03-02 German Tech Precision Co., Ltd. Two-speed planetary gear
DE102016221297A1 (en) 2016-10-28 2018-05-03 Zf Friedrichshafen Ag Switchable planetary gear
DE102016221310A1 (en) 2016-10-28 2018-05-03 Zf Friedrichshafen Ag clamp coupling
AT520296B1 (en) * 2017-11-10 2019-03-15 Avl Commercial Driveline & Tractor Eng Gmbh SWITCHING DEVICE FOR A GEARBOX
DE102018204200A1 (en) 2018-03-20 2019-09-26 Zf Friedrichshafen Ag Planetary gear with a line for passing lubricant and / or coolant through the planetary gear

Also Published As

Publication number Publication date
DE10348755A1 (en) 2005-06-23
TWI342933B (en) 2011-06-01
CN100580275C (en) 2010-01-13
CN1871458A (en) 2006-11-29
TW200514939A (en) 2005-05-01

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication