CN201656668U - Electric push rod for overload protection of disk spring - Google Patents
Electric push rod for overload protection of disk spring Download PDFInfo
- Publication number
- CN201656668U CN201656668U CN2010201715456U CN201020171545U CN201656668U CN 201656668 U CN201656668 U CN 201656668U CN 2010201715456 U CN2010201715456 U CN 2010201715456U CN 201020171545 U CN201020171545 U CN 201020171545U CN 201656668 U CN201656668 U CN 201656668U
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- CN
- China
- Prior art keywords
- push rod
- disk spring
- rod
- overload protection
- torque switch
- 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 provides an electric push rod for overload protection of a disk spring, comprising a push rod, wherein the push rod is connected with an external pipe through a guide sleeve; the external pipe is fixed on a machine casing; the top part of the push rod is connected with a coupler, and the bottom part of the push rod is meshed on a screwed rod through a nut; the screwed rod is positioned in the machine casing and reaches to the inner part of a cavity body of the push rod; a bevel gear is mounted on the screwed rod; a transmission shaft is meshed with the bevel gear and connected with an external speed reduction motor; the screwed rod is provided with bearings; the disk spring is combined in pressing plates and fixed on the screwed rod between the bearings through an upper bearing seat and a lower bearing seat; and the machine casing is provided with a torque switch, and a poking rod of the torque switch is connected with the torque switch and is arranged in a rail groove of the lower bearing seat. The electric push rod for overload protection of the disk spring has simple and reliable structure, economic maintenance and convenient installation and operation; the disk spring has small volume, light weight, small occupied space and strong bearing capacity of single disk spring; and the electric push rod for overload protection of a disk spring has various combination modes, can bear different loads through correcting load parameters of positive-negative loads, and has wide applicable range.
Description
Technical field
The utility model belongs to electric operator, relates to electric pushrod, relates in particular to a kind of electric pushrod of disk spring overload protection.
Background technology
Electric pushrod is a kind ofly to change rotatablely moving of motor the power-jdriven gear of the straight reciprocating motion of push rod into, has simple in structure, compact, advantages such as transmission efficiency is high, reliable in action, has a wide range of applications in every field.In existing product, the overload protection arrangement of electric pushrod generally adopts cylindrically coiled spring to be pressed on the screw rod, and the cylindrically coiled spring pressurized promotes the torque switch power cutoff by driving lever, thereby reaches the purpose of overload protection.Its weak point is that the bearing capacity of push rod is supported on the cylindrically coiled spring, because intrinsic performance and the allowable stress of cylindrically coiled spring, when load of carrying, need load-carrying ability greater than institute's bearing load, make that the overall dimension of cylindrically coiled spring is bigger, inside and the outer shape size of making electric pushrod also enlarge thereupon; Weight is big, profile is clumsy, manufacturing cost is high, waste resource, load change is suitable for ability.
The content of utility model
In order to overcome the above-mentioned weak point of the electric pushrod that has the cylindrically coiled spring overload protection now; the applicant improves through research; a kind of electric pushrod of disk spring overload protection is provided; adopt disk spring to protect electric pushrod; simple in structure, volume is little, in light weight, take up space for a short time, can carry different load.
The technical solution of the utility model is as follows:
A kind of electric pushrod of disk spring overload protection; comprise push rod; push rod is connected with outer tube by guide pin bushing; outer tube is fixed on the casing; the push rod top connects coupling; the push rod bottom is engaged on the screw rod by nut; screw rod is positioned at casing and is deep into the inside cavity of push rod, and conical gear is installed on the screw rod, and power transmission shaft is connected with the conical gear engagement and with the reducing motor of outside; on the described screw rod bearing is installed; butterfly spring is combined in the middle of the pressing plate, and is fixed on the screw rod between the bearing by top chock and step, and torque switch is installed on the casing; the torque switch driving lever is connected with torque switch, and is arranged in the rail groove of step.
Its further technical scheme is:
Described bearing two ends are separately installed with locking nut and adjust circle on screw rod.
Described torque switch is covered with the torque switch box.
Useful technique effect of the present utility model is:
The utility model is simple in structure, reliable, safeguard economy, fitting operation is convenient, adopts disk spring to transship and protects electric pushrod, meets accident etc. midway and can both safeguard protection shut down at push rod extreme limit of travel position, overload or push rod stroke.Disk spring in the form of sheets, volume is little, and is in light weight, take up space for a short time, the monolithic bearing capacity is strong; Combining form is various, by revising load deformation loading gage lotus parameter, can carry different load, and is applied widely.
Description of drawings
Fig. 1 is a cutaway view of the present utility model.
Fig. 2 is the enlarged drawing of A portion among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model is specifically described by embodiment.
As shown in Figure 1, the utility model comprises push rod 4, push rod 4 is connected with outer tube 3 by guide pin bushing 2, outer tube 3 is fixed on the casing 11, push rod 4 tops connect coupling 1, and push rod 4 bottoms are engaged on the screw rod 5 by nut 6, and screw rod 5 is positioned at casing 11 and is deep into the inside cavity of push rod 4, conical gear 15 is installed on the screw rod 5, and power transmission shaft 16 is connected with conical gear 15 engagements and with the reducing motor of outside.
See Fig. 1, Fig. 2, bearing 13 is installed on the screw rod 5, butterfly spring 10 is combined in the middle of the pressing plate 9, and be fixed on the screw rod 5 between the bearing 13 by top chock 8 and step 12, torque switch 18 is installed on the casing 7, torque switch driving lever 17 is connected with torque switch 18, and is arranged in the rail groove of step 12.Bearing 13 two ends are separately installed with locking nut 14 and adjust circle 7 on screw rod 5, locking nut 14 is used to lock above-mentioned a whole set of overload protection arrangement, adjust circle 7 and are used to adjust overload quantity.
See Fig. 1, torque switch 18 is covered with torque switch box 19, to avoid the colliding with raising fail safe.
Operation principle of the present utility model is as follows:
After motor slows down by reducing motor, torque is delivered on screw rod 5 and the nut 6 by conical gear 15 from power transmission shaft 16, drives push rod 4, rotatablely moving of motor become the rectilinear motion of push rod 4, utilize the forward and backward of motor to finish push pull maneuver, thrust equates with pulling force.Coupling 1 is used to connect the mechanism that is driven, and guide pin bushing 2 is used for fixing and is spacing, when screw rod 5 and nut 6 move forward to extreme position, and nut 6 and guide pin bushing 2 butts.
When screw rod 5 was subjected to load, butterfly spring 10 axially was subjected to load change and is out of shape, and screw rod 5 moves axially when reaching overload quantity, and torque switch driving lever 17 is stirred torque switch 18, cuts off the electricity supply, and plays overload protective function.Disk spring 10 in the form of sheets, volume is little, and is in light weight, take up space for a short time, the monolithic bearing capacity is strong, because the load deformation loading gage lotus parameter of disk spring 10 is adjustable, by revising its load deformation loading gage lotus parameter, can carry different load, and is applied widely.Multi-disc disk spring 10 is superimposed, then can realizes wider bearing capacity.
Above-described only is preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that those skilled in the art under the prerequisite that does not break away from spirit of the present utility model and design, can make other improvement and variation.
Claims (3)
1. the electric pushrod of a disk spring overload protection; comprise push rod (4); push rod (4) is connected with outer tube (3) by guide pin bushing (2); outer tube (3) is fixed on the casing (11); push rod (4) top connects coupling (1); push rod (4) bottom is engaged on the screw rod (5) by nut (6); screw rod (5) is positioned at casing (11) and is deep into the inside cavity of push rod (4); conical gear (15) is installed on the screw rod (5); power transmission shaft (16) is connected with conical gear (15) engagement and with the reducing motor of outside; it is characterized in that: bearing (13) is installed on the described screw rod (5); butterfly spring (10) is combined in the middle of the pressing plate (9); and be fixed on the screw rod (5) between the bearing (13) by top chock (8) and step (12); torque switch (18) is installed on the casing (7); torque switch driving lever (17) is connected with torque switch (18), and is arranged in the rail groove of step (12).
2. according to the electric pushrod of the described disk spring overload protection of claim 1, it is characterized in that: described bearing (13) two ends are separately installed with locking nut (14) and adjust circle (7) on screw rod (5).
3. according to the electric pushrod of the described disk spring overload protection of claim 1, it is characterized in that: described torque switch (18) is covered with torque switch box (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201715456U CN201656668U (en) | 2010-04-12 | 2010-04-12 | Electric push rod for overload protection of disk spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201715456U CN201656668U (en) | 2010-04-12 | 2010-04-12 | Electric push rod for overload protection of disk spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201656668U true CN201656668U (en) | 2010-11-24 |
Family
ID=43121901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201715456U Expired - Fee Related CN201656668U (en) | 2010-04-12 | 2010-04-12 | Electric push rod for overload protection of disk spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201656668U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104619145A (en) * | 2014-12-16 | 2015-05-13 | 中航光电科技股份有限公司 | Torque-limiting boosting locker for case |
| CN105479148A (en) * | 2015-12-11 | 2016-04-13 | 中国航空工业集团公司西安航空计算技术研究所 | Fixed-moment A-shaped front locking device |
| CN106253570A (en) * | 2016-08-30 | 2016-12-21 | 无锡艾尔特线性运动机械有限公司 | Coupling type electric pushrod |
| CN106253569A (en) * | 2016-08-30 | 2016-12-21 | 无锡艾尔特线性运动机械有限公司 | Overload protection type electric pushrod |
| CN106438904A (en) * | 2016-08-30 | 2017-02-22 | 无锡艾尔特线性运动机械有限公司 | Novel electric push rod |
| CN106975718A (en) * | 2017-05-25 | 2017-07-25 | 温州江南精机有限公司 | The planker drive mechanism of computer spring making machine |
| CN107175303A (en) * | 2017-05-25 | 2017-09-19 | 温州江南精机有限公司 | A kind of computer numerical controlled omnipotent eight pawls machine |
| CN107695921A (en) * | 2016-08-08 | 2018-02-16 | 上海辛野模具有限公司 | A kind of locking apparatus |
| CN110541916A (en) * | 2018-05-29 | 2019-12-06 | 浙江力耐得传动科技有限公司 | Push rod structure with half mould half copper nut |
| CN110779388A (en) * | 2019-11-08 | 2020-02-11 | 北京特种机械研究所 | Marching locking device and combined in-place control method |
| CN112696473A (en) * | 2020-12-16 | 2021-04-23 | 武汉滨湖电子有限责任公司 | Leveling support leg |
| CN112720298A (en) * | 2020-12-23 | 2021-04-30 | 扬州曙光光电自控有限责任公司 | Electrodynamic type clamping device based on belleville spring |
-
2010
- 2010-04-12 CN CN2010201715456U patent/CN201656668U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104619145B (en) * | 2014-12-16 | 2018-01-16 | 中航光电科技股份有限公司 | Limited torque boosting locker for cabinet |
| CN104619145A (en) * | 2014-12-16 | 2015-05-13 | 中航光电科技股份有限公司 | Torque-limiting boosting locker for case |
| CN105479148A (en) * | 2015-12-11 | 2016-04-13 | 中国航空工业集团公司西安航空计算技术研究所 | Fixed-moment A-shaped front locking device |
| CN105479148B (en) * | 2015-12-11 | 2018-07-03 | 中国航空工业集团公司西安航空计算技术研究所 | Determine torque A type front locking devices |
| CN107695921A (en) * | 2016-08-08 | 2018-02-16 | 上海辛野模具有限公司 | A kind of locking apparatus |
| CN106253569A (en) * | 2016-08-30 | 2016-12-21 | 无锡艾尔特线性运动机械有限公司 | Overload protection type electric pushrod |
| CN106438904A (en) * | 2016-08-30 | 2017-02-22 | 无锡艾尔特线性运动机械有限公司 | Novel electric push rod |
| CN106253570A (en) * | 2016-08-30 | 2016-12-21 | 无锡艾尔特线性运动机械有限公司 | Coupling type electric pushrod |
| CN107175303A (en) * | 2017-05-25 | 2017-09-19 | 温州江南精机有限公司 | A kind of computer numerical controlled omnipotent eight pawls machine |
| CN106975718A (en) * | 2017-05-25 | 2017-07-25 | 温州江南精机有限公司 | The planker drive mechanism of computer spring making machine |
| CN107175303B (en) * | 2017-05-25 | 2020-02-07 | 温州江南精机有限公司 | Computer numerical control universal eight-claw machine |
| CN110541916A (en) * | 2018-05-29 | 2019-12-06 | 浙江力耐得传动科技有限公司 | Push rod structure with half mould half copper nut |
| CN110779388A (en) * | 2019-11-08 | 2020-02-11 | 北京特种机械研究所 | Marching locking device and combined in-place control method |
| CN112696473A (en) * | 2020-12-16 | 2021-04-23 | 武汉滨湖电子有限责任公司 | Leveling support leg |
| CN112720298A (en) * | 2020-12-23 | 2021-04-30 | 扬州曙光光电自控有限责任公司 | Electrodynamic type clamping device based on belleville spring |
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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: 20101124 Termination date: 20150412 |
|
| EXPY | Termination of patent right or utility model |