CN201546997U - Alarm device for blower belt fracture - Google Patents
Alarm device for blower belt fracture Download PDFInfo
- Publication number
- CN201546997U CN201546997U CN2009200747141U CN200920074714U CN201546997U CN 201546997 U CN201546997 U CN 201546997U CN 2009200747141 U CN2009200747141 U CN 2009200747141U CN 200920074714 U CN200920074714 U CN 200920074714U CN 201546997 U CN201546997 U CN 201546997U
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- belt
- connecting rod
- warning device
- contact
- sensitive switch
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Abstract
The utility model discloses an alarm device for blower belt fractures. The alarm device comprises a shaft, a connecting rod, a roller, a spring, a microswitch, and an alarm circuit; the shaft is arranged on one side of the belt; one end of the connecting rod is connected with the shaft, and the other end thereof is connected with the roller; the roller is arranged on the belt in a rolling manner; the connecting rod is connected with the spring; the microswitch is arranged on one side of the connecting rod; and the contact of the microswitch is arranged on the connecting rod and is switched into the alarm circuit. The utility model is used for detecting the running state of the blower, and can give an alarm immediately once the belt fractures. Furthermore, the utility model has the same effect on a blower provided with a plurality of belts, and can give an alarm so long as one belt fractures, so as to warn operating personnel to go to the scene to deal with faults and eliminate system hidden troubles.
Description
Technical field
The utility model relates to a kind of blower fan, is specifically related to a kind of blower fan belt fracture warning device.
Background technique
Supply and exhaust blower fan system extensive use belt connects motor and impeller, and crack conditions can take place owing to reasons such as overload, aging or quality do not pass a test in belt in daily use, even when using many belt drives impellers, when first belt fracture back other several since the tension force change greatly also can rupture in succession, thereby make the impeller stall, supply and exhaust stop.Therefore belt fracture as untimely processing meeting impact system stable operation; even harm personal safety (such as the exhaust system of toxic and harmful); and existing protective system (thermorelay, air-break switch) can only be moved under situations such as overload, short circuit; can not react to the belt fracture defect; because motor is still in running; still can show blower fan in the monitoring system in proper functioning, operations staff's accident of often will being correlated with by the time take place and cause consequence after could find fault.Though by operations staff's the fracture that can find belt of making regular check on, this inspection does not possess instantaneity.
The model utility content
Technical problem to be solved in the utility model provides a kind of blower fan belt fracture warning device, and it can in time detect the fracture defect of blower fan drive belt, thereby in time reminds the operations staff to carry out the switching or the maintenance of blower fan when breaking down.
For solving the problems of the technologies described above, the technical solution of the utility model blower fan belt fracture warning device is:
Comprise axle, connecting rod, roller, spring, sensitive switch, warning circuit; Axle is arranged at a side of belt, an end coupling shaft of connecting rod; The other end of connecting rod connects roller, and roller rolls and is arranged on the belt; Connecting rod is connected with spring; Connecting rod one side is established sensitive switch, and the contact of sensitive switch is arranged on the connecting rod; Warning circuit is inserted in the contact of sensitive switch.
The width of described roller is greater than gap between the belt, less than the width of belt.
Described warning circuit comprises alarming relay, red alarm tutorial light and/or buzzer, green proper functioning tutorial light; Connecting with the coil of reset button, alarming relay after the first normally opened contact parallel connection of the contact of described sensitive switch and alarming relay is first branch road; Connecting with second normally opened contact of alarming relay after the monitoring point parallel connection of red alarm tutorial light and/or buzzer and Long-Range Surveillance System is second branch road; It is the 3rd branch road that the normally-closed contact of alarming relay is connected with green proper functioning tutorial light; First branch road is formed the loop with second, third branch road respectively.Described red alarm tutorial light is in parallel with buzzer.
Described warning device comprises many covers, the corresponding belt of every cover warning device; The shared group alarm circuit of described many cover warning devices, the contact of the sensitive switch of each warning device is in parallel with first normally opened contact of alarming relay respectively.
The technique effect that the utility model can reach is:
The utility model is used to detect the operation conditions of blower fan belt, once the belt fracture is arranged, can report to the police immediately.The utility model is effective equally for the blower fan of many belt drives, will report to the police as long as there is a belt that fracture takes place, and in time reminds the operations staff to go to the in-situ processing fault, eliminates system's hidden danger.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the schematic representation of the utility model blower fan belt fracture warning device;
Fig. 2 is the phase diagram of the utility model when belt ruptures;
Fig. 3 is warning circuit figure of the present utility model;
Fig. 4 is that four belts are installed schematic representation of the present utility model respectively.
Description of reference numerals among the figure:
1 is axle, and 2 is connecting rod,
3 is roller, and 4 is spring,
5 is sensitive switch, and X1, X2, X3, X4 are the contact of sensitive switch,
A1 is an alarming relay, and RST is a reset button,
RL is the red alarm tutorial light, and BZ is a buzzer,
M is the monitoring point of Long-Range Surveillance System, and GL is green proper functioning tutorial light,
10 is belt.
Embodiment
As shown in Figure 1, the utility model blower fan belt fracture warning device comprises axle 1, connecting rod 2, roller 3, spring 4, sensitive switch 5; Axle 1 is arranged at a side of belt 10, an end coupling shaft 1 of connecting rod 2, and connecting rod 2 can freely rotate around axle 1; The other end of connecting rod 2 connects roller 3, and roller 3 rolls and is arranged on the belt 10; Connecting rod 2 is connected with spring 4; Connecting rod 2 one sides are established sensitive switch 5, and the contact of sensitive switch 5 is arranged at this side of connecting rod 2.
The application of force direction of 4 pairs of connecting rods 2 of spring is opposite by the direction of 3 pairs of connecting rod 2 application of forces of roller with belt 10; When the supporting force of 10 pairs of connecting rods 2 of belt reduced, connecting rod 2 rotated to sensitive switch 5 directions.The width of roller 3 is greater than gap between the belt 10, and less than the width of belt 10, causes false alarm to prevent that roller 3 from falling in belt 10 gaps.
Under normal state, roller 3 rotates with the rolling of belt 10, owing to be rolling friction, therefore very little to the wearing and tearing of belt 10, intact belt 10 is close on the belt 10 roller 3, and this moment, spring 4 was in compressive state, and sensitive switch 5 can not be touched in the contact on the connecting rod 2.
As shown in Figure 2, when belt 10 fracture, roller 3 loses and the contacting of belt 10, and the supporting force of belt 10 disappears, and spring 4 stretches, and makes connecting rod 2 to the rotation of sensitive switch 5 directions, and sensitive switch 5 is touched in the contact on the connecting rod 2, sensitive switch 5 actions.
The utility model adopts roller 3 to contact with belt 10, can reduce and belt 10 between frictional force, prevent the wearing and tearing of belt 10.
As shown in Figure 3, the contact X of sensitive switch 5 inserts warning circuit, and present embodiment comprises the quadruplet warning device, and the roller 3 of warning device is arranged at respectively on four belts of blower fan, as shown in Figure 4.
The quadruplet warning device is set up in parallel, a shared group alarm circuit, and warning is promptly sent in any belt fracture.
Connecting with the coil of reset button RST, alarming relay A1 after the first normally opened contact parallel connection of contact X1, the X2 of four sensitive switches, X3, X4 and alarming relay A1 is first branch road; Connecting with second normally opened contact of alarming relay A1 after the monitoring point M parallel connection of red alarm tutorial light RL, buzzer BZ and Long-Range Surveillance System is second branch road; It is the 3rd branch road that the normally-closed contact of alarming relay A1 is connected with green proper functioning tutorial light GL, and first branch road is formed the loop with second, third branch road respectively.
In normal operation, sensitive switch 5 attonitys, four normally opened contact X1, X2 of its correspondence, the equal attonity of X3, X4, keep off state, this moment, the coil of alarming relay A1 was not subjected to, second normally opened contact of alarming relay A1 in second branch road keeps off state, and the normally-closed contact of the alarming relay A1 in the 3rd branch road remains closed, and the green indicating lamp GL lamp that expression runs well in this branch road is bright.
When the belt fracture took place, sensitive switch 5 actions had one or more closures among contact X1, X2, X3, the X4, and then the coil of alarming relay A1 is subjected to electricity, makes the first normally opened contact closure of alarming relay A1, forms self-locking; The second normally opened contact closure of alarming relay A1 in while second branch road, RL is bright for the red alarm tutorial light, and buzzer BZ pipes, and the monitoring point M of Long-Range Surveillance System also is subjected to simultaneously, supervisory system is sent warning, and the operations staff of notice monitoring chamber goes on site fault clearing; The normally-closed contact of alarming relay A1 in the 3rd branch road is opened at this moment, and green proper functioning tutorial light GL extinguishes.
The belt that more renews, after fault is got rid of, sensitive switch 5 resets, and contact X1, X2, X3, X4 keep off state, press reset button RST, the coil losing electricity of alarming relay A1, first normally opened contact of alarming relay A1 is opened, removed self-locking, ann reset, warning in red alarm tutorial light RL, buzzer BZ and the Long-Range Surveillance System at this moment also resets thereupon, and green proper functioning tutorial light GL lights.
Claims (5)
1. a blower fan belt fracture warning device is characterized in that: comprise axle, connecting rod, roller, spring, sensitive switch, warning circuit; Axle is arranged at a side of belt, an end coupling shaft of connecting rod; The other end of connecting rod connects roller, and roller rolls and is arranged on the belt; Connecting rod is connected with spring; Connecting rod one side is established sensitive switch, and the contact of sensitive switch is arranged on the connecting rod; Warning circuit is inserted in the contact of sensitive switch.
2. blower fan belt fracture warning device according to claim 1, it is characterized in that: the width of described roller is greater than gap between the belt, less than the width of belt.
3. blower fan belt fracture warning device according to claim 1, it is characterized in that: described warning circuit comprises alarming relay, red alarm tutorial light and/or buzzer, green proper functioning tutorial light;
Connecting with the coil of reset button, alarming relay after the first normally opened contact parallel connection of the contact of described sensitive switch and alarming relay is first branch road; Connecting with second normally opened contact of alarming relay after the monitoring point parallel connection of red alarm tutorial light and/or buzzer and Long-Range Surveillance System is second branch road; It is the 3rd branch road that the normally-closed contact of alarming relay is connected with green proper functioning tutorial light; First branch road is formed the loop with second, third branch road respectively.
4. blower fan belt fracture warning device according to claim 2, it is characterized in that: described warning device comprises many covers, the corresponding belt of every cover warning device; The shared group alarm circuit of described many cover warning devices, the contact of the sensitive switch of each warning device is in parallel with first normally opened contact of alarming relay respectively.
5. blower fan belt fracture warning device according to claim 2, it is characterized in that: described red alarm tutorial light is in parallel with buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200747141U CN201546997U (en) | 2009-11-24 | 2009-11-24 | Alarm device for blower belt fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200747141U CN201546997U (en) | 2009-11-24 | 2009-11-24 | Alarm device for blower belt fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201546997U true CN201546997U (en) | 2010-08-11 |
Family
ID=42602169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200747141U Expired - Fee Related CN201546997U (en) | 2009-11-24 | 2009-11-24 | Alarm device for blower belt fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201546997U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705251A (en) * | 2012-01-16 | 2012-10-03 | 苏州工业园区姑苏科技有限公司 | Fan operation detecting device |
| CN105500177A (en) * | 2016-02-02 | 2016-04-20 | 宁波达尔轴承有限公司 | Bearing channel ultra-precision machine with error-proofing device and error-proofing method thereof |
| CN105775858A (en) * | 2016-04-15 | 2016-07-20 | 江苏东方宝泰科技有限公司 | Buffering protection device for producing composite aluminum plate |
| CN114749279A (en) * | 2022-03-09 | 2022-07-15 | 重庆钢铁股份有限公司 | Safety early warning system and method for electric dust removal device of sintering machine head |
| WO2022242205A1 (en) * | 2021-05-20 | 2022-11-24 | 苏州星贝尔中空成型设备有限公司 | Metal detection system for flash recycling and conveying system of hollow molding machine |
-
2009
- 2009-11-24 CN CN2009200747141U patent/CN201546997U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705251A (en) * | 2012-01-16 | 2012-10-03 | 苏州工业园区姑苏科技有限公司 | Fan operation detecting device |
| CN105500177A (en) * | 2016-02-02 | 2016-04-20 | 宁波达尔轴承有限公司 | Bearing channel ultra-precision machine with error-proofing device and error-proofing method thereof |
| CN105500177B (en) * | 2016-02-02 | 2018-02-02 | 宁波达尔机械科技有限公司 | Bearing channel Superfinishing machine and its error-preventing method with error prevention device |
| CN105775858A (en) * | 2016-04-15 | 2016-07-20 | 江苏东方宝泰科技有限公司 | Buffering protection device for producing composite aluminum plate |
| CN105775858B (en) * | 2016-04-15 | 2018-02-23 | 江苏东方宝泰科技有限公司 | A kind of buffer protection device for producing aluminum composite plate |
| WO2022242205A1 (en) * | 2021-05-20 | 2022-11-24 | 苏州星贝尔中空成型设备有限公司 | Metal detection system for flash recycling and conveying system of hollow molding machine |
| CN114749279A (en) * | 2022-03-09 | 2022-07-15 | 重庆钢铁股份有限公司 | Safety early warning system and method for electric dust removal device of sintering machine head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI HUAHONG GRACE SEMICONDUCTOR MANUFACTURING Free format text: FORMER OWNER: HUAHONG NEC ELECTRONICS CO LTD, SHANGHAI Effective date: 20140108 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201206 PUDONG NEW AREA, SHANGHAI TO: 201203 PUDONG NEW AREA, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140108 Address after: 201203 Shanghai city Zuchongzhi road Pudong New Area Zhangjiang hi tech Park No. 1399 Patentee after: Shanghai Huahong Grace Semiconductor Manufacturing Corporation Address before: 201206, Shanghai, Pudong New Area, Sichuan Road, No. 1188 Bridge Patentee before: Shanghai Huahong NEC Electronics Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20151124 |