CN2496173Y - Power-driven screw thread pushing rod - Google Patents
Power-driven screw thread pushing rod Download PDFInfo
- Publication number
- CN2496173Y CN2496173Y CN 01247656 CN01247656U CN2496173Y CN 2496173 Y CN2496173 Y CN 2496173Y CN 01247656 CN01247656 CN 01247656 CN 01247656 U CN01247656 U CN 01247656U CN 2496173 Y CN2496173 Y CN 2496173Y
- Authority
- CN
- China
- Prior art keywords
- pole socket
- screw thread
- nut
- electric pushrod
- push rod
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a screw thread electric pushing bar used as a linear-stroke actuator which achieves the requirement of reciprocating push and pull. A electric pushing bar (1) is connected with an upper bar seat (10), a motor output shaft is connected with a screw rod (13), a main driven screw thread is matched with the screw rod (13) by a pushing bar nut (12), the pushing bar nut (12) is positioned in a lower bar seat (15), the lower bar seat (15) and the upper bar seat (10) are formed a whole body or connected with each other, a long key (14) is arranged in the lower bar seat, the pushing bar nut (12) has an axial-groove to be movably matched with the long key (14), and the lower end of the pushing bar nut (12) stretches out of the lower bar seat (15) to be connected with a coupling head (18).
Description
Technical field:
The utility model is relevant with transmission gear for electric motor, and is especially relevant with reciprocating stroke apparatus.
Technical background:
In all kinds of dynamo-electric complete set of equipments and automatic control equipment thereof, extensively adopt electric pushrod as the Direct Travel actuator of realizing the reciprocating sliding requirement.Existing electric pushrod adopts gear graduation, the transmission of monofilament bar, stop using as overload protection to transship float axle bed and limit switch, stroke own is non-adjustable, as the user stroke there is requirement, travel switch then must externally be installed could regulate and control reciprocating stroke, and machine components are more, volume, weight are big; Other has the electric pushrod that adopts slowspeed machine, and itself does not have the stroke adjusting device yet, also needs the outside that travel switch is installed and could regulate and control stroke, and it is all not too convenient that therefore existing all kinds of electronic promotions are installed, regulate and control, safeguarded.
The utility model content:
The purpose of this utility model provide a kind of simple in structure, volume is little, in light weight, stroke own is adjustable, the transmission efficiency height, thrust is big, installation, regulation and control and screw thread electric pushrod easy to maintenance.
The utility model is achieved in that
The utility model motor (1) is connected with last pole socket (10), motor output shaft is connected with screw mandrel (13), screw mandrel (13) has the main transmission screw thread to cooperate with push rod nut (12), push rod nut (12) is positioned at pole socket (15) down, following pole socket (15) is one with last pole socket (10) or is connected, long key (14) is arranged in the following pole socket, and push rod nut (12) has axial groove and long key (14) movingly, and pole socket (15) was connected with coupling head (18) under stretched out the lower end of push rod nut (12).
The utility model screw mandrel (13) moves apart from screw thread and cooperates with moving apart from nut (7), and last pole socket (10) has axial slots, and stroke groove feeler lever (8) passes axial slots and is connected apart from nut (7) with moving, and the axial slots outer surface is equipped with micro limit switch (6).
The utility model micro limit switch (6) is upper and lower two, lays respectively on the upper and lower stroke adjustable plate (9), and upper and lower stroke adjustable plate (9) is fixed on pole socket (10) housing by adjustment screw (21) and regulating tank (22).
The endoporus two ends of pole socket on the utility model (10) are equipped with axle sleeve (3), bearing (4) and bearing (11) respectively, moving apart from threaded portion in last pole socket (10) of screw mandrel (13), the main transmission threaded portion of screw mandrel (13) is in following pole socket (15), the lower end of following pole socket (15) is stretched out axle sleeve (16) back and is connected with coupling head (18), and locking nut (17) and connecting link pin (19) are arranged.
There is a pair of spindle nose (20) the external mutually two sides of pole socket on the utility model (10).
The utility model travel switch (6) and upper and lower stroke adjustable plate (9) are positioned at dustproof lid (5).
It is 1 that the utility model screw thread electric pushrod moves apart from the pitch ratio of nut (7) and push rod nut (12): (5-10).
The utility model is dynamo-electric in conjunction with transmission device, can be widely used in all kinds of dynamo-electric complete set of equipments and automation thereof the control, realizes the Direct Travel actuator that reciprocating sliding requires as it, can replace hydraulic pressure, pneumatic reciprocating stroke mechanism.The utility model adopts permanent magnet low speed synchronous motor, gearless speed change, no shaft coupling, there is not the axle bed of floating, motor shaft and screw mandrel axis hole direct connection, machine components are few, the transmission efficiency height under the equal-wattage situation, increases about about 15% than the thrust of other similar electric pushrod.On the screw axis except that motion thread, other has LAP to move apart from screw thread, cooperate two high accuracy micro limit switch of adjusting screw nut and installing itself to carry out accuracy controlling to reciprocating stroke, the stroke adjustment scope is big, easy to adjust, only need mobile micro limit switch adjustable plate to get final product, the user does not need to install separately the external travel switch.It is simple in structure, and is in light weight, volume is little, installs, regulation and control and safeguard all more convenient.
Description of drawings:
Fig. 1 is a front view of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is Figure 1A-A cutaway view.
Fig. 4 is the adjustable plate structure chart.
Fig. 5 is the vertical view of Fig. 4.
Embodiment:
Structure and outline drawing are seen accompanying drawing 1 and accompanying drawing 2.
Permanent magnet low speed synchronous motor 1 becomes motor push rod body with last pole socket 10, following pole socket 15 usefulness bolted on connections.Axle sleeve 3 is equipped with at endoporus two ends at last pole socket 10 respectively, and bearing 4 and 11 is in order to supporting and axial location two threaded screw rods 13 wherein.Moving apart from threaded portion in last pole socket 10 of screw mandrel 13 is combined with and moves apart from nut 7 and stroke feeler lever 8, and stroke feeler lever 8 stretches out outside the slotted hole of pole socket 10, and the slotted hole outer surface is equipped with micro limit switch 6 and stroke adjustment plate 9, and with dustproof lid 5 seal protections.The main transmission threaded portion of screw mandrel 13 is combined with push rod nut 12 and the long key 14 of guiding in following pole socket 15.Centering nylon sleeve 16 is equipped with in the lower surface of following pole socket 15, and coupling head 18 is equipped with after stretching out axle sleeve 16 in push rod nut 12 lower ends, connecting link pin 19 and locking nut 17.The spindle nose of motor 1 stretches in the upper surface centre bore of screw mandrel 13, and with inclined to one side flat key 2 and screw mandrel 13 key connecting, changes distance to transmit.The outer two sides of last pole socket 10 are furnished with a pair of spindle nose 20 that usefulness is installed and are used in various occasions electric pushrod usefulness being installed.
Operation principle of the present utility model is as follows:
When motor 1 rotates, by key 2, will change distance and pass to screw mandrel 13, and screw mandrel 13 can only rotate because of the axial location of axle sleeve 3, bearing 4 and 11.When screw mandrel 13 rotated, push rod nut 12 can only move axially owing to circumferentially located by key 14, and so just the rotation with motor has become the rectilinear motion of push rod.Change the direction of rotation of motor 1, just can change the reciprocating motion state that pushes away or draw of push rod 12.
Stroke Control of the present utility model and adjusting are as follows:
When screw mandrel 13 rotated, moving apart from the circumferential location of nut 7 (its position is relative with the position of push rod nut 12 consistent during installation) owing to stroke feeler lever 8 in the last pole socket 10 can only equally with push rod nut 12 also move axially simultaneously.But move apart from the pitch of nut 7 very little, it generally is the part of the pitch of push rod nut 12, therefore move the part of also just having only the stroke of push rod nut 12 apart from the stroke of nut 7, when stroke feeler lever 8 moved to the action of micro limit switch contact together along with nut 7, electric pushrod promptly stopped to move.This in fact be exactly with little Stroke Control the big stroke of push rod.Adjust the stroke of push rod,, move and to tighten screw, stroke adjustment behind the position have the stroke adjustment plate 9 of regulating slotted hole 22 again as long as unclamp the trip bolt 21 of stroke adjustment plate 9.The stroke adjustment wide ranges is that the electric pushrod adjustable range of 100mm is that 20～100mm is adjustable arbitrarily as stroke.
Electrical control:
The utility model all can use when power supply is single-phase system 220, three-phase four-wire system 380V.
The utility model is more suitable for using the PLC programming Control in addition.
Claims (6)
1, the screw thread electric pushrod, it is characterized in that motor (1) is connected with last pole socket (10), motor output shaft is connected with screw mandrel (13), screw mandrel (13) has the main transmission screw thread to cooperate with push rod nut (12), push rod nut (12) is positioned at pole socket (15) down, following pole socket (15) is one with last pole socket (10) or is connected, long key (14) is arranged in the following pole socket, push rod nut (12) has axial groove and long key (14) movingly, the lower end of push rod nut (12) is stretched out down, and pole socket (15) is connected with coupling head (18), screw mandrel (13) moves apart from screw thread and cooperates with moving apart from nut (7), last pole socket (10) has axial slots, stroke feeler lever (8) passes axial slots and is connected apart from nut (7) with mobile, and the axial slots outer surface is equipped with micro limit switch (6).
2, screw thread electric pushrod according to claim 1, it is characterized in that micro limit switch (6) is upper and lower two, lay respectively on the upper and lower stroke adjustable plate (9), upper and lower stroke adjustable plate (9) is fixed on pole socket (10) housing by adjustment screw (21) and regulating tank (22).
3, screw thread electric pushrod according to claim 1 and 2, the endoporus two ends that it is characterized in that pole socket (10) are equipped with axle sleeve (3), bearing (4) and bearing (11) respectively, moving apart from threaded portion in last pole socket (10) of screw mandrel (13), the main transmission threaded portion of screw mandrel (13) is in following pole socket (15), the lower end of following pole socket (15) is stretched out axle sleeve (16) back and is connected with coupling head (18), and locking nut (17) and connecting link pin (19) are arranged.
4, screw thread electric pushrod according to claim 1 and 2 is characterized in that there is a pair of spindle nose (20) the relative two sides of pole socket (10).
5, screw thread electric pushrod according to claim 1 is characterized in that travel switch (6) and upper and lower stroke adjustable plate (9) are positioned at dustproof lid (5).
6, screw thread electric pushrod according to claim 1 and 2 is characterized in that it is 1 that the screw thread electric pushrod moves apart from the pitch ratio of nut (7) and push rod nut (12): (5-10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01247656 CN2496173Y (en) | 2001-09-19 | 2001-09-19 | Power-driven screw thread pushing rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01247656 CN2496173Y (en) | 2001-09-19 | 2001-09-19 | Power-driven screw thread pushing rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2496173Y true CN2496173Y (en) | 2002-06-19 |
Family
ID=33658470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01247656 Expired - Fee Related CN2496173Y (en) | 2001-09-19 | 2001-09-19 | Power-driven screw thread pushing rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2496173Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105222B (en) * | 2007-08-22 | 2010-05-19 | 上海久能机电制造有限公司 | Electric screw overtravel automatic safe protective device |
| CN101323315B (en) * | 2008-06-10 | 2010-10-13 | 姚秀全 | Automobile electronic redirector |
| CN102195397A (en) * | 2011-03-25 | 2011-09-21 | 许晓华 | Improved structure of electric push rod |
| CN103594798A (en) * | 2013-11-20 | 2014-02-19 | 中国船舶重工集团公司第七二四研究所 | Switching locating device for double feed sources |
| CN107104544A (en) * | 2017-07-05 | 2017-08-29 | 北京航空航天大学 | A kind of integrated electromechanical servo acting device of high power to weight ratio |
| CN107618887A (en) * | 2017-10-10 | 2018-01-23 | 襄阳国铁机电股份有限公司 | A kind of traverse table transfer bridge mechanism and its installation method |
-
2001
- 2001-09-19 CN CN 01247656 patent/CN2496173Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105222B (en) * | 2007-08-22 | 2010-05-19 | 上海久能机电制造有限公司 | Electric screw overtravel automatic safe protective device |
| CN101323315B (en) * | 2008-06-10 | 2010-10-13 | 姚秀全 | Automobile electronic redirector |
| CN102195397A (en) * | 2011-03-25 | 2011-09-21 | 许晓华 | Improved structure of electric push rod |
| CN102195397B (en) * | 2011-03-25 | 2013-01-16 | 许晓华 | Improved structure of electric push rod |
| CN103594798A (en) * | 2013-11-20 | 2014-02-19 | 中国船舶重工集团公司第七二四研究所 | Switching locating device for double feed sources |
| CN103594798B (en) * | 2013-11-20 | 2015-08-26 | 中国船舶重工集团公司第七二四研究所 | A kind of double-fed source switches positioner |
| CN107104544A (en) * | 2017-07-05 | 2017-08-29 | 北京航空航天大学 | A kind of integrated electromechanical servo acting device of high power to weight ratio |
| CN107104544B (en) * | 2017-07-05 | 2019-07-26 | 北京航空航天大学 | A kind of integrated electromechanical servo acting device of high power to weight ratio |
| CN107618887A (en) * | 2017-10-10 | 2018-01-23 | 襄阳国铁机电股份有限公司 | A kind of traverse table transfer bridge mechanism and its installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |