CN209649480U - A kind of spiral pump type 3D printing spray head that alternating current servo motor direct drives - Google Patents
A kind of spiral pump type 3D printing spray head that alternating current servo motor direct drives Download PDFInfo
- Publication number
- CN209649480U CN209649480U CN201820774806.XU CN201820774806U CN209649480U CN 209649480 U CN209649480 U CN 209649480U CN 201820774806 U CN201820774806 U CN 201820774806U CN 209649480 U CN209649480 U CN 209649480U
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- China
- Prior art keywords
- pump
- rotor
- servo motor
- stator
- spray head
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- 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.)
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
A kind of spiral pump type 3D printing spray head that alternating current servo motor direct drives, including helicoidal pump, AC servo motor and rotary transformer three parts；Helicoidal pump is embedded in the internal rotor of AC servo motor；The special construction that helicoidal pump is combined using the pump rotor of nut type with ladder optical axis formula pump stator, the pump rotor of helicoidal pump is installed on rotor center, and is integrally formed with rotor fixation；The pump rotor forward and backward and speed-regulating function of helicoidal pump are driven by AC servo motor, realize the uniformly continuous supply, timely stopping and drip-proof function of material in jet printing type 3D printing spray head, the present apparatus has compact-sized, the advantages that control is easy, the precision and efficiency of jet printing type 3D printing can be greatly improved, and is convenient for later maintenance.
Description
Technical field
The utility model belongs to 3D printing technique field, is related to a kind of spiral pump type 3D printing that alternating current servo motor direct drives
Spray head, realization material in 3D printing feeder process are capable of the supply of even.
Background technique
In increases material manufacturing technology field, jet printing type 3D printing technique using more and more extensive.In jet printing type 3D technology
In, printing head is the key building block of 3D printing equipment all the time, is related to 3D printing feeding device in the course of work
It can realize uniformly continual raw material supply.Existing 3D printing spray head using motor+twin-screw pump type and AC servo motor+
The structure type that single screw rod squeezes, is to export the output power of motor to Quimby pump or single-screw (single screw) pump by shaft coupling,
The disadvantages of it is big that there are structure sizes, and driving member and connector quantity are more, and mounting and adjusting is cumbersome, noise and larger vibration, print head
Reality output control difficult, be difficult to adapt to modern 3D printing accurate feeding, the actual demand precisely printed.
Therefore, a kind of spiral pump type 3D printing spray head that alternating current servo motor direct drives is designed, is directly driven using AC servo
Mode drives the single-screw pump body structure of special construction, realizes that the material in jet printing type 3D printing is accurately supplied and precisely printed,
And automatic cleaning function and drip-proof effect with spray head.
Summary of the invention
The technical solution that the utility model is taken is as follows:
A kind of spiral pump type 3D printing spray head that alternating current servo motor direct drives, including helicoidal pump, AC servo motor and rotation
Change depressor three parts；Helicoidal pump is embedded in the internal rotor of AC servo motor；Rotary transformer is arranged in AC servo electricity
On the inside of one side end cap of machine；
The helicoidal pump includes pump stator 3, pump rotor 6, pump bearing lid 1, material outlet 2, material inlet 12, bearing
11；The pump stator 3 of helicoidal pump is the stepped optical axis form that there are centre bore and radial hole in both ends, the centre bore and radial hole of one end
The material inlet 12 of helicoidal pump is constituted, the centre bore and radial hole of the other end constitute the material outlet 2 of helicoidal pump；Material goes out
Mouth 2 is connected with spray head 17；Pump rotor 6 is that center has tapped through hole, and outside is the barrel nut structure with keyway；Motor turns
Son 7 is fixedly connected on the outside of pump rotor 6 by key；The both ends of pump rotor 6 are bolted and fixed there are two pump end cap 10,
Two pump end caps 10 are supported on the both ends of pump stator 3 by bearing 11 and pump bearing lid 1 respectively；Two pump end caps 10 and pump stator
There are two sealing rings 19 for arrangement between 3.
AC servo motor includes rotor 7, motor housing 5, stator core 8, electric motor end cap 13, coil 14, permanent magnetism
Body 15, key 18；Rotor 7 and the coaxial assembly of stator core 8；Motor stator includes stator core 8, coil 14 and permanent magnet
15, stator core 8 has the axial chute of multiple equidistantly distributeds, and coil 14 and permanent magnet 15 are uniformly at intervals in stator core 8
Axial chute in；Motor stator is concentrically mounted in motor housing 5；There is radiating fin in the outside of motor housing 5, and inside is cylinder
Pore structure；Motor housing 5 and two electric motor end caps 13 at both ends have collectively constituted the spiral pump type 3D of alternating current servo motor direct drive
Printing head
Shell；Electric motor end cap 13 is transparent cover form, and the both ends of pump stator 3 are respectively from the central through hole of two electric motor end caps 13
In be pierced by, electric motor end cap 13 is fixedly connected on the both ends of pump stator 3.
Rotary transformer includes that rotation becomes rotor 4 and rotation set 16；Rotation becomes the end that rotor 4 is fixedly connected on pump end cap 10
Portion；Rotation set 16 is fixedly connected on the inside of electric motor end cap 13；Rotation becomes rotor and rotation set flushly mounts with one heart.
The utility model is used as power source using AC servo motor, proposes a kind of nut type pump rotor and ladder optical axis
The special helical type pump structure of formula pump stator composition is realized using the rotor and pump rotor integral structure of AC servo motor and is sprayed
The accurate feeding of painting formula 3D printing head.The present apparatus is not necessarily to driving member and few connector, and the exchange for realizing " Zero-drive Chain " is watched
Take electric-machine directly-driven structure, have many advantages, such as structure it is simple, it is easy to maintenance and be fed accurate and continuous, Practical with higher
Value.
Detailed description of the invention
The outline drawing of Fig. 1 the utility model.
A-A cross-sectional view in Fig. 2 Fig. 1.
B-B cross-sectional view in Fig. 3 Fig. 1.
Specific embodiment
The implementation process of the utility model is described with reference to the accompanying drawing.
As shown in Figure 1, Figure 2 and Fig. 3, a kind of spiral pump type 3D printing spray head that alternating current servo motor direct drives, including pump bearing lid
1, material outlet 2, spiral pump stator 3, rotation become rotor 4, motor housing 5, spiral pump rotor 6, rotor 7, stator core 8,
Nut 9, pump end cap 10, bearing 11, material inlet 12, electric motor end cap 13, coil 14, permanent magnet 15, rotation set 16, spray are installed
First 17, key 18, sealing ring 19 form；Wherein spiral pump stator 3 loaded in spiral pump rotor 6, distinguish by the two sides of spiral pump stator 3
By being mounted in AC servo motor in bearing 11 and pump bearing lid 1 and 10 pairs of end cap of pump, and motor is connected to by key 18
On end cap 13, rotation becomes the pump stator 3 that rotor 4 is installed on helicoidal pump and pump end cap 10 by the side of discharge port 2, spiral pump rotor 6
It is assembled with rotor 7 by key, rotor 7 and stator core 8 assemble, and stator core 8 is mounted in motor housing 5, line
Circle 14 is uniformly distributed on the circumference of stator core 8 with permanent magnet 15, and electric motor end cap 13 and motor housing 5 pass through bolt and installation spiral shell
Mother 9 installs, and AC servo motor and helicoidal pump is made to become an entirety.
Since the pump stator 3 and pump rotor 6 of helicoidal pump are installed in AC servo motor, the pump rotor 6 and electricity of helicoidal pump
Machine rotor 7 is connected by key, and realizes the integrated design of AC servo motor and helicoidal pump, and the pump rotor 6 of helicoidal pump
Side becomes rotor 4 and rotation set 16 equipped with rotation, can detect to its position, it is ensured that drives spiral in rotor 7
When the pump rotor 6 of pump rotates, material enters the seal chamber between the pump rotor 6 and pump stator 3 of helicoidal pump by feed inlet 12 defeated
It send to discharge port 2, until material is sprayed from spray head 17, guarantees accuracy and continuity in entire feeder process, and big
Reduce the volume of feeding device greatly, in feed, formd between the pump stator 3 and pump rotor 6 of helicoidal pump it is multiple theoretically
The turbulent behavior of the seal chamber and single-volute pump that are fully sealed, so that the pressure change that material enters each seal chamber is equal
Even, it is uniformly continuous to guarantee that material is sprayed in discharge port.
A kind of course of work for the spiral pump type 3D printing spray head that alternating current servo motor direct drives:
The pump stator 3 of helicoidal pump is installed in AC servo motor, is formed between the pump stator 3 and pump rotor 6 of helicoidal pump
Helixseal chamber.When AC servo motor rotation, rotor 7 drives the pump rotor 6 of helicoidal pump to rotate, and has inside spin
The pump rotor 6 in hole rotates, and negative pressure is formed at feed inlet 12, material is sucked in the spiral cavity of the pump rotor 6 of helicoidal pump, with
The rotation of pump rotor 6 that drives of rotor 7, material discharge port 2 is advanced to along axis direction by pump rotor 6, then from going out
Material is sent to spray head 17 and sprayed by material mouth 2, realizes the uniformly continuous supply of material.The feed rate of material passes through AC servo electricity
The speed-regulating function of machine is realized, and the stop-spraying function of spray head 17 may be implemented in the sudden-stop function of AC servo motor.
When AC servo motor rotates backward, rotor 7 drive pump rotor 6 rotate backward, at this time helicoidal pump go out
Material mouth 2 and the position functions of feed inlet 12 change, and negative pressure is formed at spray head 17, and the material at spray head 17 is reversely inhaled
Enter, realizes the drip-proof function of spray head.
Claims (3)
1. the spiral pump type 3D printing spray head that a kind of alternating current servo motor direct drives, it is characterised in that: including helicoidal pump, AC servo
Motor and rotary transformer three parts；Helicoidal pump is embedded in the internal rotor of AC servo motor；Rotary transformer is arranged in friendship
On the inside of one side end cap of flow servo motor；
The helicoidal pump include pump stator (3), pump rotor (6), pump bearing lid (1), material outlet (2), material inlet (12),
Bearing (11)；The pump stator (3) of helicoidal pump is the stepped plain shaft structure that there are centre bore and radial hole in both ends, the centre bore of one end
The material inlet (12) of helicoidal pump is constituted with radial hole, the material that the centre bore and radial hole of the other end constitute helicoidal pump goes out
Mouth (2)；Material outlet (2) is connected with spray head (17)；Pump rotor (6) is that center has tapped through hole, and outside is the circle with keyway
Cylindricality nut structure；Rotor (7) is fixedly connected on the outside of pump rotor (6) by key；The both ends of pump rotor (6) use spiral shell
Bolt is fixedly connected there are two end cap (10) are pumped, and two pump end caps (10) are supported on respectively by bearing (11) and pump bearing lid (1)
The both ends of pump stator (3)；There are two sealing ring (19) for arrangement between two pump end caps (10) and pump stator (3).
2. the spiral pump type 3D printing spray head that a kind of alternating current servo motor direct according to claim 1 drives, it is characterised in that:
AC servo motor includes rotor (7), motor housing (5), motor stator, electric motor end cap (13), coil (14), permanent magnet
(15), key (18)；Rotor (7) and the coaxial assembly of motor stator (8)；Motor stator includes stator core (8), coil (14)
With permanent magnet (15), stator core (8) has the axial chute of multiple equidistantly distributeds, coil (14) and permanent magnet (15) interval
It is evenly arranged in the axial chute of stator core (8)；Motor stator is concentrically mounted in motor housing (5)；Outside motor housing (5)
There is radiating fin in side, and inside is cylinder pore structure；Motor housing (5) has been collectively constituted with two electric motor end caps (13) at both ends and has been exchanged
The shell for the spiral pump type 3D printing spray head that servo motor directly drives；Electric motor end cap (13) be transparent cover formula structure, the two of pump stator (3)
End is pierced by from the central through hole of two electric motor end caps (13) respectively, and electric motor end cap (13) is fixedly connected on the two of pump stator (3)
End.
3. the spiral pump type 3D printing spray head that a kind of alternating current servo motor direct according to claim 1 drives, it is characterised in that:
Rotary transformer includes that rotation becomes rotor (4) and rotation set (16)；Rotation becomes the end that rotor (4) are fixedly connected on pump end cap (10)
Portion；Rotation set (16) is fixedly connected on the inside of electric motor end cap (13)；Rotation becomes rotor (4) and rotation set (16) is concordant with one heart
Installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820774806.XU CN209649480U (en) | 2018-05-23 | 2018-05-23 | A kind of spiral pump type 3D printing spray head that alternating current servo motor direct drives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820774806.XU CN209649480U (en) | 2018-05-23 | 2018-05-23 | A kind of spiral pump type 3D printing spray head that alternating current servo motor direct drives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209649480U true CN209649480U (en) | 2019-11-19 |
Family
ID=68505718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820774806.XU Expired - Fee Related CN209649480U (en) | 2018-05-23 | 2018-05-23 | A kind of spiral pump type 3D printing spray head that alternating current servo motor direct drives |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209649480U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108437465A (en) * | 2018-05-23 | 2018-08-24 | 陕西理工大学 | The spiral pump type 3D printing nozzle that alternating current servo motor direct drives |
-
2018
- 2018-05-23 CN CN201820774806.XU patent/CN209649480U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108437465A (en) * | 2018-05-23 | 2018-08-24 | 陕西理工大学 | The spiral pump type 3D printing nozzle that alternating current servo motor direct drives |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191119 |