CN110311529A - A kind of new type nut linear motor - Google Patents
A kind of new type nut linear motor Download PDFInfo
- Publication number
- CN110311529A CN110311529A CN201910503699.6A CN201910503699A CN110311529A CN 110311529 A CN110311529 A CN 110311529A CN 201910503699 A CN201910503699 A CN 201910503699A CN 110311529 A CN110311529 A CN 110311529A
- Authority
- CN
- China
- Prior art keywords
- linear motor
- nut
- ball spline
- screw rod
- sleeve
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/12—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moving in alternate directions by alternate energisation of two coil systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/16—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
Abstract
The present invention relates to a kind of new type nut linear motors.Traditional electromagnetic linear motor is generally all driven the movement of feed screw nut's generation straight line by electromagnetic machine, because the output characteristics of electromagnetic machine causes linear motor speed and precision not control well；Although having there is the linear motor that high-precision piezoelectric type may be implemented, but lead to not obtain big thrust and speed because the power of piezoelectric motor is too small, in this problem, it is an object of the invention to propose a kind of novel nut linear motor, overcome the problems, such as that current small linear motor exists, obtains linear motor a kind of while that there is larger thrust-velocity.The linear motor of the method design proposed through the invention has good reliability and stability, and structure is simple, and easy for installation, at low cost, thrust accuracy and speed is relatively high.Because using the use of symmetrical structure design and one-way clutch, it ensure that the reliability of one-way movement, also ensure the convenience of bidirectional-movement, while guaranteeing to obtain stable linear motion under the driving force input simply inputted.Low cost of the invention and reliability wish that extensive utilization can be obtained on some high-precision straight line locating platforms.
Description
Technical field
The present invention relates to a kind of nut linear motor, especially a kind of new type nut linear motor.
Technical background
Linear motor has many implementations as motor-driven one kind at present, electromagnetic type, piezoelectric type gentle
Dynamic formula linear motor or movement mechanism.Linear motor on these drive forms because the reason of power source and driving method it is universal
In the presence of structure is complicated, the low problem of the low perhaps transmission accuracy of driving force so that be not suitable for using or causing into many occasions
This increase.Any linear motor can be divided into three parts, and power source generates initial moment or thrust, by power source conversion
Transmission mechanism and the final output mechanism for generating linear drives.Power source and driving mechanism determine mechanism entirety stability and
Complexity, also influences kinematic accuracy, largely determines the quality of motor performance.
Summary of the invention
It is an object of the invention to be directed to the deficiency of prior art, a kind of new type nut linear motor is provided, it can be achieved that double
To movement, motor linear motion.Structure is simple, and thrust is big, and precision is high, at low cost.
To achieve the above object, the invention patent adopts the following technical solutions:
A kind of new type nut linear motor, including screw rod (1), ball spline (2), supported hole (3), casing (4), connection (5), list
To clutch (6), clutch outer cylinder (7), electromagnet (8), drive rod (9), bearing (10), nut (11), connection sleeve
(12), it is characterised in that be made of three driving mechanism, transmission mechanism and linear motor output mechanism parts.Wherein driving mechanism
By electromagnet (8), drive rod (9), form；Transmission mechanism is by connecting key (5), one-way clutch (6), clutch outer cylinder (7)
Bearing (10), nut (11), connection sleeve (12) composition, linear motor output mechanism is by screw rod (1), ball spline (2), support
Hole (3) composition.The connection relationship of each component describes are as follows: casing (4) is fixed, and ball spline (2) is fixed on the supported hole (3) of rack
Screw rod (1) is cooperated by opening guide groove and ball spline (2)；Nut (11) and screw rod (1) are constrained by screw thread pair；Nut (11)
With connect sleeve (12) be interference fitted and by holding screw reinforce, connection sleeve (12) and bearing (10) cooperate after be mounted on machine
On shell, the extension end of connection sleeve (12) is connected clutch (6) and connect by connecting key (5) with unidirectional, finally by outer sleeve
(7), electromagnet (8), drive rod (9) collectively constitute motor.
The reciprocating sliding power of drive rod (9) transmitting is transmitted to by the outer sleeve (7) connecting with one-way clutch (6) and spiral shell
The connection sleeve (12) of mother's connection is eventually transferred on nut (11).
Screw rod (1) exports the thrust for straight line under the guiding role of ball spline (2), by the torque that nut (11) are transmitted
And movement.
The present invention compared with prior art, have the characteristics that following obvious prominent practicability and significant technology into
Step simply and reliablely utilizes straight reciprocating motion, and structure is simple, can export high thrust and high-precision, reduce manufacturing cost, can
To adapt to a large amount of occasion.
The invention will be further described below in conjunction with the accompanying drawings.
Detailed description of the invention
Fig. 1 is overall structure of the present invention；
Fig. 2 is the internal structure diagrammatic cross-sectional view of specific embodiment of the invention nut motor；
Fig. 3 is the structural schematic diagram of specific embodiment of the invention one-way clutch；
Fig. 4 is that specific embodiment of the invention nut screw cooperates self-locking structural schematic diagram；
Fig. 5 is the structural schematic diagram of specific embodiment of the invention driving member combination；
Fig. 6 is present invention specific implementation action schematic diagram.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
As shown in Figure 1, a kind of structure of nut linear motor, including 1- screw rod 2- ball spline 3- supported hole 4-
Casing 5- connecting key 6- one-way clutch 7- outer sleeve 8- electromagnet 9- drive rod 10- bearing 11- nut
12- connection sleeve.
If Fig. 2 is inside configuration schematic cross-sectional view of the invention, a kind of nut linear motor includes casing (4), casing (4)
On be equipped with supported hole (3), by ball spline (2) and be provided with guiding screw rod (1) combine, by electromagnetic push utilize one-way clutch
Motor, is exported unidirectional linear motion by the characteristic of the unidirectional delivery torque of device (6).The electric machine structure is simple, dexterously uses
Architectural characteristic, simple theory of mechanics is applied in actual production, can be exported high-precision and high thrust, be compensated for tradition
The shortcomings that linear motor, can expand its working range, improve production efficiency.
Nut linear motor mechanism can integrally resolve into three mechanisms, wherein by electromagnet (8), drive rod (9), forming
Driving mechanism；By connecting key (5), one-way clutch (6), clutch outer cylinder (7) bearing (10), nut (11), connection sleeve
(12) transmission mechanism is formed, linear motor output mechanism is formed by screw rod (1), ball spline (2), supported hole (3).Wherein also
Part holding screw does not mark.
In running part, the reciprocating sliding power of drive rod (9) transmitting passes through the outer sleeve that connect with one-way clutch (6)
(7) the connection sleeve (12) connecting with nut is transmitted to be eventually transferred on nut (11).Because the individual event of one-way clutch passes
The characteristic for passing torque can make the reciprocating motion of push rod be ultimately converted to unidirectional torque to be output on nut, wherein passing through left and right
The commutation of motor may be implemented in the symmetry on both sides.
In output par, c, screw rod (1) exports the torque of nut (11) transmitting under the guiding role of ball spline (2)
For the thrust and movement of straight line.
The connection relationship of each component describes are as follows: casing (4) is fixed, and ball spline (2) is fixed on supported hole (3) silk of rack
Bar (1) is cooperated by opening guide groove and ball spline (2)；Nut (11) and screw rod (1) are constrained by screw thread pair；Nut (11) with
It connects sleeve (12) interference fit and is reinforced by holding screw, be mounted on casing after connection sleeve (12) and bearing (10) cooperation
On, the extension end of connection sleeve (12) is connected clutch (6) and connect by connecting key (5) with unidirectional, finally by outer sleeve (7),
Electromagnet (8), drive rod (9) collectively constitute motor.
In the example motion process of nut linear motor shown in Fig. 6, motion process is described as follows:
Step 1: linear motor is in original state after installing
Step 2: electromagnetic reciprocating linear motion is fixed on drive rod (9), during an effective exercise, by electromagnet
Thrust, and generated unidirectionally by outer sleeve (7), one-way clutch (6), connection sleeve (12), bearing (10) and nut (11)
Driving moment finally exports linear motor screw rod and moves right.
Step 3: the suction-combining force of electromagnet sets back push rod, because the characteristic of one-way clutch, does not generate screw rod
Linear motion completes the output of straight line to the right an of linear motor.
4th step;Left side symmetrical line electromagnetic reciprocating mechanism kinematic, repeating above three step may be implemented the double of motor
To driving.
Pay attention in order to which the cooperation for guaranteeing motor lead screw pair of nut is self-locking, if the feed screw nut of figure three cooperates self-locking schematic diagram,
The lift angle size for designing feed screw nut is α >=7 °.
The nut linear motor designed through the above way has good reliability and high thrust high-precision, can guarantee one
The fixed speed of service.The electric machine structure is simple simultaneously, has dexterously used the architectural characteristic of one-way clutch, will be simple mechanical
The shortcomings that principle applies in actual production, compensates for traditional line motor can expand its working range, improve production effect
Rate.
Claims (3)
1. a kind of new type nut linear motor, including screw rod (1), ball spline (2), supported hole (3), casing (4), connection (5),
One-way clutch (6), clutch outer cylinder (7), electromagnet (8), drive rod (9), bearing (10), nut (11), connection sleeve
(12), it is characterised in that be made of three driving mechanism, transmission mechanism and linear motor output mechanism parts, wherein driving mechanism
By electromagnet (8), drive rod (9), form；Transmission mechanism is by connecting key (5), one-way clutch (6), clutch outer cylinder (7)
Bearing (10), nut (11), connection sleeve (12) composition, linear motor output mechanism is by screw rod (1), ball spline (2), support
Hole (3) composition, the connection relationship description of each component are as follows: casing (4) is fixed, and ball spline (2) is fixed on the supported hole (3) of rack
Screw rod (1) is cooperated by opening guide groove and ball spline (2)；Nut (11) and screw rod (1) are constrained by screw thread pair；Nut (11)
With connect sleeve (12) be interference fitted and by holding screw reinforce, connection sleeve (12) and bearing (10) cooperate after be mounted on machine
On shell, the extension end of connection sleeve (12) is connected clutch (6) and connect by connecting key (5) with unidirectional, finally by outer sleeve
(7), electromagnet (8), drive rod (9) collectively constitute motor.
2. being directed to a kind of new type nut linear motor described in claim 1, which is characterized in that drive rod (9) transmits reciprocal
Push-pull effort is transmitted to the connection sleeve (12) connecting with nut by the outer sleeve (7) connecting with one-way clutch (6) and finally passes
It is delivered on nut (11).
3. being directed to a kind of new type nut linear motor described in claim 1, which is characterized in that screw rod (1) is in ball spline (2)
Guiding role under, by nut (11) transmit torque export thrust and movement for straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910503699.6A CN110311529A (en) | 2019-06-12 | 2019-06-12 | A kind of new type nut linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910503699.6A CN110311529A (en) | 2019-06-12 | 2019-06-12 | A kind of new type nut linear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110311529A true CN110311529A (en) | 2019-10-08 |
Family
ID=68077124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910503699.6A Pending CN110311529A (en) | 2019-06-12 | 2019-06-12 | A kind of new type nut linear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110311529A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102388527A (en) * | 2009-04-08 | 2012-03-21 | Lg伊诺特有限公司 | Linear stepping motor |
| CN102857021A (en) * | 2012-08-22 | 2013-01-02 | 北京摩诘创新科技有限公司 | Servo electric cylinder |
-
2019
- 2019-06-12 CN CN201910503699.6A patent/CN110311529A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102388527A (en) * | 2009-04-08 | 2012-03-21 | Lg伊诺特有限公司 | Linear stepping motor |
| CN102857021A (en) * | 2012-08-22 | 2013-01-02 | 北京摩诘创新科技有限公司 | Servo electric cylinder |
Non-Patent Citations (1)
| Title |
|---|
| 方建程等: "电磁铁冲击激励下的螺母电机", 《计量与测试技术》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191008 |