CN203144822U - Electric screw nut type safety cover opening/closing device - Google Patents
Electric screw nut type safety cover opening/closing device Download PDFInfo
- Publication number
- CN203144822U CN203144822U CN 201220518476 CN201220518476U CN203144822U CN 203144822 U CN203144822 U CN 203144822U CN 201220518476 CN201220518476 CN 201220518476 CN 201220518476 U CN201220518476 U CN 201220518476U CN 203144822 U CN203144822 U CN 203144822U
- Authority
- CN
- China
- Prior art keywords
- nut
- safety cover
- sleeve
- closing
- safety guard
- 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 an electric screw nut type safety cover opening/closing device which comprises the following components: a motor, a gearbox, a lead screw, a nut and a sleeve. An output shaft of the motor is fixedly connected with an input shaft of the gearbox. A flange of the motor is fixedly connected with a gearbox housing. The lead screw is fixedly connected with an output shaft of the gearbox. The gearbox housing is connected with a frame through a rotation pair. The nut is threaded on the lead screw through a screw pair. The nut is fixedly connected with the sleeve. The sleeve is connected with the safety cover through the rotation pair. An electric control system is adopted for opening and closing the safety cover through the lead screw and the nut. Furthermore reverse self locking of the safety cover is realized through designing a reasonable pitch of screws. The electric screw nut type safety cover opening/closing device further has the following advantages: simple structure; high opening/closing stability of the safety cover; capability of effectively preventing automatic closing, overturning and closing speed out-of-control after the safety cover is opened; high safety in use; high reliability; high convenience in maintenance, and low use cost.
Description
Technical field
The utility model relates to a kind of safety guard switching device of electronic feed screw nut's formula, is used for driving the device that the double twisting device safety guard realizes that upset opens and closes.
Background technology
At present, interior unwrapping wire and interior take-up type double twisting device all require to open safety guard by headstock gear when feeding and get material.Existing flip type safety guard headstock gear adopts pneumatic form, this kind form is closed voluntarily, is toppled and phenomenon such as closing velocity is out of control if blowby gas path then produces safety guard, thereby cause device damage after safety guard is opened, even casualties, there is certain potential safety hazard.
Summary of the invention
Open the easily security incident that causes out of control of back in order to overcome in the prior art safety guard, have deficiencies such as potential safety hazard, the utility model provides a kind of reverse self-locking, electronic feed screw nut's formula safety guard automatic opening-closing safe and reliable, simple in structure.
The technical solution of the utility model is: a kind of electronic feed screw nut's formula safety guard headstock gear, its technical characterstic is to comprise motor, reduction box, screw mandrel, nut and sleeve, motor output shaft and reduction box power shaft are affixed, motor flange and reduction box casing are affixed, screw mandrel and reduction gearbox output shaft are affixed, and the reduction box casing connects with frame by revolute; Nut is connected on the screw mandrel by screw pair, the affixed sleeve of nut, and sleeve connects by revolute with safety guard.For a long time under the situation by screw mandrel driving work, screw mandrel and nut adopt specific pitch, can realize reverse self-locking to guarantee nut, prevent from closing voluntarily after case from opening and toppling, and guarantee production safety at nut; Only need to change and safeguard the nut of rapid wear in addition, need not change sleeve, saved production, use cost.
Further, described reduction box connects with gearbox mount by revolute, and support and frame are affixed.
Again further, adopt coupling sleeve to connect between described screw mandrel and the reduction gearbox output shaft, coupling sleeve connects by articulation hole bolt or pin respectively with between screw mandrel and the reduction gearbox output shaft, is convenient to replacing and maintenance, the saving use cost.
Adopt sleeve to connect between described nut and case, sleeve one end and nut are affixed, and the other end connects with case by revolute,
The utility model adopts electric-control system to drive the safety guard opening and closing through screw mandrel, nut, and by the reverse self-locking of pitch reasonable in design with the realization safety guard, it is simple in structure, safety guard opens and closes stable, closing voluntarily, toppling and the closing velocity out-of-control phenomenon after effectively avoiding safety guard to open, use safe, reliable, easy to maintenance, use cost is low.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the left view of Fig. 1.
Among the figure: support 1, frame 2, reduction box 3, motor 4, nut 5, sleeve 6, safety guard 7, the first revolute pairs 8, screw mandrel 9, coupling sleeve 10, the second revolute pairs 11.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Shown in Fig. 1,2, the safety guard switching device of electronic feed screw nut's formula comprises support 1, frame 2, reduction box 3, motor 4, nut 5, sleeve 6, safety guard 7, the first revolute pairs 8, screw mandrel 9, coupling sleeve 10 and second revolute pair 11.Support 1 is affixed with frame 2, support 1 connects by second revolute pair 11 with reduction box 3, the input of reduction box 3, shaft are affixed with power shaft, the screw mandrel 9 of motor 4 respectively, screw mandrel 9 connects with nut 5 by screw pair, nut 5 is affixed with sleeve 6, and sleeve 6 connects with safety guard 7 by first revolute pair 8.
During this device work, motor is just changeing by the rotation of reduction box drive screw mandrel, make nut by the direction motion near reduction box through screw pair, the affixed sleeve of drive and nut is pressed the equidirectional motion, and then drive safety guard by revolute and realize opening around the revolute between itself and frame, can feed, get material work.Otherwise, during the closed safe cover, motor counter-rotating, nut is by the direction motion away from reduction box, drives safety guard and realizes closing around the revolute between itself and frame.
Claims (3)
1. electronic feed screw nut's formula safety guard headstock gear, it is characterized in that: comprise motor, reduction box, screw mandrel, nut and sleeve, motor output shaft and reduction box power shaft are affixed, motor flange and reduction box casing are affixed, screw mandrel and reduction gearbox output shaft are affixed, and the reduction box casing connects with frame by revolute; Nut is connected on the screw mandrel by screw pair, the affixed sleeve of nut, and sleeve connects by revolute with safety guard.
2. a kind of electronic feed screw nut's formula safety guard headstock gear according to claim 1, it is characterized in that: described reduction box connects with gearbox mount by revolute, and support and frame are affixed.
3. a kind of electronic feed screw nut's formula safety guard headstock gear according to claim 1, it is characterized in that: adopt coupling sleeve to connect between described screw mandrel and the reduction gearbox output shaft, coupling sleeve respectively with screw mandrel and reduction gearbox output shaft between by the articulation hole bolt or sell and connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220518476 CN203144822U (en) | 2012-10-11 | 2012-10-11 | Electric screw nut type safety cover opening/closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220518476 CN203144822U (en) | 2012-10-11 | 2012-10-11 | Electric screw nut type safety cover opening/closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203144822U true CN203144822U (en) | 2013-08-21 |
Family
ID=48972364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220518476 Expired - Fee Related CN203144822U (en) | 2012-10-11 | 2012-10-11 | Electric screw nut type safety cover opening/closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203144822U (en) |
-
2012
- 2012-10-11 CN CN 201220518476 patent/CN203144822U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20141011 |
|
| EXPY | Termination of patent right or utility model |