CN102011844A - Hollow internal cooling type ball screw assembly - Google Patents
Hollow internal cooling type ball screw assembly Download PDFInfo
- Publication number
- CN102011844A CN102011844A CN2010106100471A CN201010610047A CN102011844A CN 102011844 A CN102011844 A CN 102011844A CN 2010106100471 A CN2010106100471 A CN 2010106100471A CN 201010610047 A CN201010610047 A CN 201010610047A CN 102011844 A CN102011844 A CN 102011844A
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- ball screw
- ball
- hollow
- bearing
- cooling type
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Abstract
The invention provides a hollow internal cooling type ball screw assembly. The ball screw assembly comprises a ball screw, a ball nut, balls, a ball circulator, two sealing devices, two rolling support devices and an external cooling loop device, wherein the ball screw is a hollow ball screw; and the ball circulator is used for circulating the balls. In the hollow internal cooling type ball screw assembly, because constant temperature oil circularly flows in the ball screw, the thermal expansion of the ball screw caused by temperature rise is excellently suppressed so as to meet stable high-accuracy positioning requirement of a machine tool. In addition, the ball screw is provided with a run-through hollow hole, the moment of inertia of the ball screw assembly is reduced, generally, the weight of the reduced hollow part accounts for one fourth of that of the original weight, so the power required by transmission of the ball screw assembly is reduced, the cost of a control system in the machine tool is lowered and the energy is saved.
Description
Technical field
The present invention relates to a kind of ball screw pair, specifically, relate to a kind of interior cooling type ball screw pair of hollow that is used for major diameter, high position precision, stable drive numerical control machine tool, belong to field of machining.
Background technique
Ball screw pair is a kind of efficient transmission agency parts that are widely used on the numerical control machine tool, normally partly form by ball screw, ball nut, ball and ball-returning device of being used for circulating ball etc., be to be the power screw element of rolling element with the ball between ball screw and the ball nut, when ball screw and ball nut relative movement, ball passes through the ball-returning device circulating rolling along leading screw spiral road, thereby realizes that spiral motion is converted to straight line motion.Ball screw pair is of many uses, corresponding kind is also a lot, temperature rise is fast in the course of the work, expansion coefficient big and the scope of difficult control temperature rise rising for traditional ball screw pair, has had a strong impact on the Location accuracy of numerical control machine tool like this, the working life of also having reduced ball screw pair itself greatly.The ball screw of simultaneously traditional ball screw pair is a solid construction, and lathe is when starting, and drive motor needs a bigger rotary inertia could drive the rotation of ball screw.
Summary of the invention
The objective of the invention is to solve the deficiencies in the prior art part, cooling type ball screw pair in a kind of hollow is provided.
Cooling type ball screw pair in the hollow of the present invention, comprise ball screw, ball nut, ball, the ball-returning device that is used for circulating ball, said ball screw is a hollow ball screw, this ball screw pair also comprises two seal arrangements in addition, two rolling support devices and outside cooling circuit device, said seal arrangement comprises sealing unit and outside framework oil seal, said rolling support device comprises rolling bearing, bearing is adjusted Internal and external cycle, bearing housing, exoskeletal oil sealing, said cooling circuit device comprises fuel tank, oil hydraulic pump, the cooling liquid constant temperature control box, carry oil pipe, oil temperature sensor, filter and advancing, oil outlet.
Preferably,
Said rolling bearing is a zanjon ball ball bearing;
Said ball screw pair also comprises round nut, axial restraint packing ring and the bearing (ball) cover that is used for the positioning and rolling bearing.
The cooling type ball screw pair has been preserved the drive mechanism of common ball screw pair in the hollow of the present invention, on this basis, center line with ball screw is elongated hollow hole to the end of benchmark processing, add two different seal arrangements, rolling support device and outside cooling circuit, and then the realization ball screw is worked under a stationary temperature state, reduced the required rotary inertia of drive motor simultaneously, prolonged the working life of drive motor relatively, and the noise when having reduced the ball screw subtask.
Description of drawings
Come the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the ball screw part-structure schematic representation of cooling type ball screw pair in the hollow of the present invention;
Fig. 2 is the structural representation of the cooling circuit device of cooling type ball screw pair in the hollow of the present invention;
Wherein, 1-1,1-2 are sealing unit, and 2-1,2-2 are outside framework oil seal, and 3 is round nut, 4 is the axial restraint packing ring, 5-1,5-2 are bearing (ball) cover, and 6-1,6-2 are exoskeletal oil sealing, and 7-1,7-2 are deep groove ball bearing, 8 are bearing adjustment Internal and external cycle, 9-1,9-2 are bearing housing, and 10 is ball nut, and 11 is hollow ball screw.
Embodiment
As shown in Figure 1, cooling type ball screw pair in the hollow of the present invention, comprise hollow ball screw 11, ball nut 10, ball, be used for the ball-returning device of circulating ball, this ball screw pair also comprises two seal arrangements, two rolling support devices and outside cooling circuit device
In two seal arrangements, one of them comprises sealing unit 1-1 and outside framework oil seal 2-1, and another comprises sealing unit 1-2 and outside framework oil seal 2-2, and two seal arrangements have guaranteed that cooling oil the seepage phenomenon do not occur inner the flowing smoothly of hollow ball screw.In two rolling support devices, one of them comprises deep groove ball bearing 7-1, bearing adjustment Internal and external cycle 8, bearing housing 9-1 and exoskeletal oil sealing 6-1; Another rolling support device comprises deep groove ball bearing 7-2, bearing housing 9-2, bearing adjustment Internal and external cycle 8 and exoskeletal oil sealing 6-2.The cooling type ball screw pair also comprises the round nut 3 that is used for the positioning and rolling bearing, axial restraint packing ring 4, bearing (ball) cover 5-1 and bearing (ball) cover 5-2 in this hollow.
The cooling circuit device comprises fuel tank, oil hydraulic pump, cooling liquid constant temperature control box, carries oil pipe, oil temperature sensor, filter, into and out of oil nozzle.
The cooling type ball screw pair is performed such work in the hollow of the present invention: start each button of external cooling circuit earlier, make cooling circuit in running order, can set the temperature (the suggestion temperature is 20 ℃) of cooling liquid according to concrete needs, precooling is 2～3 minutes then.Following operation is just the same with conventional numerical tool operation.Because hollow ball screw inside constantly has the constant temperature coolant circulates moving, and ball screw pair is played cooling action.So the cooling type ball screw pair is the hi-Fix requirement that can realize lathe in the hollow, has reduced the required rotary inertia of drive motor simultaneously, has prolonged the working life of drive motor relatively, and the noise when having reduced the ball screw subtask.
Claims (3)
1. cooling type ball screw pair in the hollow, comprise ball screw, ball nut, ball, the ball-returning device that is used for circulating ball, it is characterized in that, said ball screw is a hollow ball screw, this ball screw pair also comprises two seal arrangements in addition, two rolling support devices, and outside cooling circuit device, said seal arrangement comprises sealing unit and outside framework oil seal, said rolling support device comprises rolling bearing, bearing is adjusted Internal and external cycle, bearing housing, exoskeletal oil sealing, said cooling circuit device comprises fuel tank, oil hydraulic pump, the cooling liquid constant temperature control box, carry oil pipe, oil temperature sensor, filter and advancing, oil outlet.
2. cooling type ball screw pair in the hollow according to claim 1 is characterized in that said rolling bearing is a zanjon ball ball bearing.
3. cooling type ball screw pair in the hollow according to claim 2 is characterized in that said ball screw pair also comprises round nut, axial restraint packing ring and the bearing (ball) cover that is used for the positioning and rolling bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106100471A CN102011844A (en) | 2010-12-29 | 2010-12-29 | Hollow internal cooling type ball screw assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106100471A CN102011844A (en) | 2010-12-29 | 2010-12-29 | Hollow internal cooling type ball screw assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102011844A true CN102011844A (en) | 2011-04-13 |
Family
ID=43842127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106100471A Pending CN102011844A (en) | 2010-12-29 | 2010-12-29 | Hollow internal cooling type ball screw assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102011844A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062351A (en) * | 2012-12-23 | 2013-04-24 | 浙江大学 | Light-load ball screw pair installing and supporting device |
| CN103158025A (en) * | 2013-03-29 | 2013-06-19 | 西安北村精密机械有限公司 | Bearing combination support structure for rolling ball lead screw support end |
| CN103934722A (en) * | 2014-03-17 | 2014-07-23 | 陕西汉江机床有限公司 | Fixing mechanism for hollow ball screw pair |
| CN106312659A (en) * | 2015-06-17 | 2017-01-11 | 池州市大正机械制造有限责任公司 | Lead screw axial fixing device |
| CN106541299A (en) * | 2017-01-11 | 2017-03-29 | 宁波马可机电有限公司 | A kind of hollow oil cooling tail end seat sealing device of machining center screw rod |
| CN107725747A (en) * | 2017-10-13 | 2018-02-23 | 北京工业大学 | A kind of ball screw assembly, based on the compensation thermal deformation of small-sized refrigerator principle |
| CN108163704A (en) * | 2018-03-21 | 2018-06-15 | 成都金士力科技有限公司 | A kind of three axis portal frame systems for high and low temperature environment |
| CN115302308A (en) * | 2022-07-21 | 2022-11-08 | 南靖东展精密机械有限公司 | Heat dissipation system and method for machine tool |
-
2010
- 2010-12-29 CN CN2010106100471A patent/CN102011844A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062351A (en) * | 2012-12-23 | 2013-04-24 | 浙江大学 | Light-load ball screw pair installing and supporting device |
| CN103158025A (en) * | 2013-03-29 | 2013-06-19 | 西安北村精密机械有限公司 | Bearing combination support structure for rolling ball lead screw support end |
| CN103934722A (en) * | 2014-03-17 | 2014-07-23 | 陕西汉江机床有限公司 | Fixing mechanism for hollow ball screw pair |
| CN106312659A (en) * | 2015-06-17 | 2017-01-11 | 池州市大正机械制造有限责任公司 | Lead screw axial fixing device |
| CN106541299A (en) * | 2017-01-11 | 2017-03-29 | 宁波马可机电有限公司 | A kind of hollow oil cooling tail end seat sealing device of machining center screw rod |
| CN107725747A (en) * | 2017-10-13 | 2018-02-23 | 北京工业大学 | A kind of ball screw assembly, based on the compensation thermal deformation of small-sized refrigerator principle |
| CN108163704A (en) * | 2018-03-21 | 2018-06-15 | 成都金士力科技有限公司 | A kind of three axis portal frame systems for high and low temperature environment |
| CN108163704B (en) * | 2018-03-21 | 2023-11-17 | 成都金士力科技有限公司 | Triaxial portal system for high-low temperature environment |
| CN115302308A (en) * | 2022-07-21 | 2022-11-08 | 南靖东展精密机械有限公司 | Heat dissipation system and method for machine tool |
| CN115302308B (en) * | 2022-07-21 | 2024-03-15 | 南靖东展精密机械有限公司 | Heat dissipation system of machine tool and heat dissipation method of machine tool |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110413 |