CN202193234U - Overload protective device for tunnel type sterilizing drier - Google Patents
Overload protective device for tunnel type sterilizing drier Download PDFInfo
- Publication number
- CN202193234U CN202193234U CN2011203058843U CN201120305884U CN202193234U CN 202193234 U CN202193234 U CN 202193234U CN 2011203058843 U CN2011203058843 U CN 2011203058843U CN 201120305884 U CN201120305884 U CN 201120305884U CN 202193234 U CN202193234 U CN 202193234U
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- CN
- China
- Prior art keywords
- lever
- pivot shaft
- drier
- inductive switch
- drying machine
- 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 overload protective device for a tunnel type sterilizing drier, which comprises a lever, a supporting shaft and an inductive switch, wherein the supporting shaft is used as a lever fulcrum, and the inductive switch is used for inducting the position of the lever. The supporting shaft and the inductive switch are mounted on the drier, a rotary tensioning wheel which is mounted at one end of the lever is meshed with a tight side of a chain on the drier to bend the same by jacking, and a balancing part for maintaining lever balance is arranged at the other end of the lever. The overload protective device is simple and compact in structure, low in cost, stable and reliable.
Description
Technical field
The utility model relates generally to food, medical packaging mechanical equipment field, refers in particular to a kind of overload protection device that is used for tunnel sterilizing and drying machine.
Background technology
The domestic overload protection method that is used for tunnel sterilizing and drying machine generally has two kinds at present: a kind of is the electric current that adopts electric elements detection main driving motor, when current value is excessive, and the main driving motor power supply that then breaks, and the overload of reporting to the police; Another kind is to adopt torque limiter, and when moment of torsion was excessive on the imput shaft, torque force limiting device broke away from imput shaft and driving chain wheel, and concurrent feed signals is given Central Processing Unit (CPU), the overload of reporting to the police.
More than two kinds of methods all have defective: it is not accurate enough to adopt electric elements to detect the detected current value of electric current, and three phase electric machine current value fluctuation ratio is bigger, when current overload, seriously lags behind, and possibly cause drive disk assembly to damage; And adopt the torque limiter cost too high, and installation takes up room bigger.
The utility model content
The technical matters that the utility model will solve is: to the problem that prior art exists, a kind of overload protection device of simple and compact for structure, with low cost, reliable and stable tunnel sterilizing and drying machine is provided.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of overload protection device of tunnel sterilizing and drying machine; Comprise lever, be used as the pivot shaft of balance pivot and the inductive switch of induction lever positions; Said pivot shaft and inductive switch are installed on the drier; Said lever one end is installed a rotatable tension wheel, the pilled-in selvedge of chain engagement and with its bending on said tension wheel and the drier, and the said lever other end is provided with the balance element of keeping lever balance.
Further improvement as the utility model:
Said inductive switch is positioned at the top that lever is provided with an end of balance element.
Said balance element is the weight that hangs on the lever.
The distance of balance element installation position is arrived in said pivot shaft axle center less than the pivot shaft axle center to the distance of tension wheel installation site.
The distance of weight hanging position is arrived in said pivot shaft axle center less than the pivot shaft axle center to the distance of tension wheel installation site.
Compared with prior art; The advantage of the utility model is: the utility model is provided with a leverage through the pilled-in selvedge at the drier chain; The stressed tensioning of chain is stretching when utilize transmitting the guipure overload impels lever motion; Arrive certain position when lever motion, inductive switch sends signal, the overload of cutting off the electricity supply and report to the police.Simple and compact for structure, with low cost, and stable, safe and reliable.
Description of drawings
Fig. 1 is the installation site scheme drawing of the utility model on drier;
Fig. 2 is the view of the utility model when drier normally moves;
Fig. 3 is the view of the utility model when drier transships;
Plan structure scheme drawing when Fig. 4 is applied on the drier for the utility model.
Marginal data: 1, drier; 2, transmit guipure; 4, active motor; 5, reductor; 6, drive sprocket; 7, chain; 8, driven sprocket; 9, inductive switch; 10, lever; 11, pivot shaft; 12, weight; 13, tension wheel; 14, transmission shaft; 15, drive sprocket.
The specific embodiment
Below will combine accompanying drawing and specific embodiment that the utility model is done further explain.
As shown in Figure 1, the overload protection device of the tunnel sterilizing and drying machine of the utility model is installed on the transmission device of drier 1 transmission device is carried out overload protection and warning.As shown in Figure 4; Transmission device in the present embodiment comprises initiatively motor 4; Initiatively motor 4 links to each other with reductor 5, after reductor 5 slows down, drives drive sprocket 6 and clockwise rotates, and the driven sprocket 8 through chain 7 drive right sides clockwise rotates again; So the top of chain 7 is the slack list, bottom is a pilled-in selvedge.Driven sprocket 8 drives transmission shaft 14 again and rotates with the drive sprocket 15 that is installed on the transmission shaft 14, is driven by drive sprocket 15 and transmits guipure 2 runnings.
As shown in Figure 2, the overload protection device of the tunnel sterilizing and drying machine of the utility model is simple and compact for structure, with low cost, and it mainly comprises lever 10, is used as the pivot shaft 11 of lever 10 fulcrums and the inductive switch 9 of induction lever 10 positions.Pivot shaft 11 all is fixed on the drier 1 with inductive switch 9, and lever 10 is sheathed on the pivot shaft 11 and can swings around pivot shaft 11, and lever 10 is positioned at the below of chain 7.Lever 10 left ends are installed a rotatable tension wheel 13, and tension wheel 13 is with the pilled-in selvedge engagement of chain 7 and with its bending, and lever 10 right-hand members are provided with the balance element of keeping lever 10 balances.In the present embodiment, inductive switch 9 is positioned at the top of lever 10 right-hand members, and when lever 10 during around pivot shaft 11 counter-clockwise swings, the end upward movement of lever 10 right-hand members near inductive switch 9, can be opened inductive switch 9.Balance element in the present embodiment is one to be suspended on the weight 12 of lever 10 right-hand member ends; For amplifying the application force of weight 12; Can make pivot shaft 11 axle center arrive the distance of weight 12 hanging positions less than pivot shaft 11 axle center to the distance of tension wheel 13 installation sites; Make pivot shaft 11 as far as possible near the left end of lever 10, to reach the effect that under lever 10 state of equilibriums tension wheel 13 can bending chain 7 pilled-in selvedges; Pivot shaft 11 is near lever 10 left ends simultaneously, and the less displacement that makes lever 10 left end ends produce just can cause the lever bigger displacement in 10 right-hand member ends, guarantees that the swing of lever 10 can trigger the unlatching of inductive switch 9.
As shown in Figure 3, when transmitting guipure 2 stressed overloads even jam, drive sprocket 15 increases with the propulsive effort that transmission shaft 14 needs; Cause the stressed increase of chain 7 pilled-in selvedges, be straightened gradually, 13 of tension wheels are moved downward by the application force of chain 7; Drive lever 10 around pivot shaft 11 left-hand revolutions, lever 10 right-hand member ends rise to inductive switch 9 places, and inductive switch 9 is opened; Inductive switch 9 sends overload signal to Central Processing Unit (CPU), and cuts off the initiatively power supply of motor 4, the overload of reporting to the police simultaneously.Operational process is stable, and is safe and reliable.
Below only be the preferred implementation of the utility model, the protection domain of the utility model also not only is confined to the foregoing description, and all technical schemes that belongs under the utility model thinking all belong to the protection domain of the utility model.Should be pointed out that for those skilled in the art,, should be regarded as the protection domain of the utility model in the some improvement and the retouching that do not break away under the utility model principle prerequisite.
Claims (5)
1. the overload protection device of a tunnel sterilizing and drying machine; It is characterized in that: comprise lever (10), be used as the pivot shaft (11) of lever (10) fulcrum and the inductive switch (9) of induction lever (10) position; Said pivot shaft (11) and inductive switch (9) are installed on the drier (1); Said lever (10) one ends are installed a rotatable tension wheel (13); Said tension wheel (13) goes up the pilled-in selvedge engagement of chain (7) with drier (1) and with its bending, said lever (10) other end is provided with the balance element of keeping lever (10) balance.
2. the overload protection device of tunnel sterilizing and drying machine according to claim 1, it is characterized in that: said inductive switch (9) is positioned at the top that lever (10) is provided with an end of balance element.
3. the overload protection device of tunnel sterilizing and drying machine according to claim 1 and 2 is characterized in that: said balance element is for hanging on the weight (12) on the lever (10).
4. the overload protection device of tunnel sterilizing and drying machine according to claim 1 and 2 is characterized in that: said pivot shaft (11) axle center to the distance of tension wheel (13) installation site less than the distance of pivot shaft (11) axle center to the balance element installation position.
5. the overload protection device of tunnel sterilizing and drying machine according to claim 3 is characterized in that: said pivot shaft (11) axle center to the distance of tension wheel (13) installation site less than the distance of pivot shaft (11) axle center to weight (12) hanging position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203058843U CN202193234U (en) | 2011-08-22 | 2011-08-22 | Overload protective device for tunnel type sterilizing drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203058843U CN202193234U (en) | 2011-08-22 | 2011-08-22 | Overload protective device for tunnel type sterilizing drier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202193234U true CN202193234U (en) | 2012-04-18 |
Family
ID=45948157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203058843U Expired - Fee Related CN202193234U (en) | 2011-08-22 | 2011-08-22 | Overload protective device for tunnel type sterilizing drier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202193234U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525487A (en) * | 2016-11-04 | 2017-03-22 | 界首市金龙机械设备有限公司 | Grain sampler |
| CN108285025A (en) * | 2017-12-15 | 2018-07-17 | 太原重工股份有限公司 | Feed system |
-
2011
- 2011-08-22 CN CN2011203058843U patent/CN202193234U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525487A (en) * | 2016-11-04 | 2017-03-22 | 界首市金龙机械设备有限公司 | Grain sampler |
| CN108285025A (en) * | 2017-12-15 | 2018-07-17 | 太原重工股份有限公司 | Feed system |
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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: 20120418 Termination date: 20150822 |
|
| EXPY | Termination of patent right or utility model |