CN201473033U - Sprocket overload protection device - Google Patents
Sprocket overload protection device Download PDFInfo
- Publication number
- CN201473033U CN201473033U CN2009202327436U CN200920232743U CN201473033U CN 201473033 U CN201473033 U CN 201473033U CN 2009202327436 U CN2009202327436 U CN 2009202327436U CN 200920232743 U CN200920232743 U CN 200920232743U CN 201473033 U CN201473033 U CN 201473033U
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- CN
- China
- Prior art keywords
- sprocket
- safety
- spring sheet
- metal spring
- sprocket wheel
- 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 - Lifetime
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Abstract
The utility model relates to a sprocket overload protection device including a drive shaft, a shaft bushing, a sprocket, and an overload protection mechanism, wherein the shaft bushing is installed at the end part of the drive shaft and fixed and the sprocket is sheathed on the shaft bushing. The sprocket overload protection device is characterized in that the overload protection mechanism comprises a bending safety slot, a metal shrapnel, a safety pin and an alarming switch; the bending safety slot is fixedly installed at the end part of the drive shaft; the tail end of the metal shrapnel is fixed at the end part of a long bolt on the side surface of the sprocket; the metal shrapnel is bended flexibly, with the head end arranged in the bending safety slot; the metal shrapnel and the sprocket run synchronously; the sprocket and the shaft bushing are linked with each other through the safety pin and rotate synchronously; the tail end of the safety pin is provided with a limiting clamp for preventing release; and the alarming switch is positioned in front of the drive shaft and gets close to the metal shrapnel, and the metal shrapnel can contact with the alarming switch under free state. The sprocket overload protection device has the advantages of simple and reasonable structure, low cost, convenient manufacturing, and safety and reliability.
Description
Technical field
The utility model belongs to mechanical automation conveying technology field, especially relates to a kind of chain wheel overload protective device.
Background technology
At present; in plate chain course of conveying; plate chain overload causes motor and other corollary equipments to damage; bring loss to production; in order to stop the generation of this situation; drive end at the plate chain just need be provided with an overload protection device, when occurring in time reporting to the police and realize motor idle running when unforeseen circumstances causes overload or plate chain stuck phenomenon, is not damaged with preventive device.
Overload protection device of the prior art is complex structure often, complex operation, and cost of manufacture is higher, is not suitable for promoting the use of on a large scale.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of simple and reasonable, with low cost, easily manufactured and safe and reliable chain wheel overload protective device is provided.
The technical scheme that provides according to the utility model, described chain wheel overload protective device comprises transmission shaft, axle sleeve, sprocket wheel and overload protecting mechanism, axle sleeve is installed in transmission shaft end and fixing, sprocket wheel is sleeved on the axle sleeve, it is characterized in that: described overload protecting mechanism comprises the bending safety groove, metal spring sheet, safety pin and alarm switch, bending shape safety groove is fixedly mounted on the transmission shaft end, the metal spring sheet tail end is fixed on the overbolt end on the chain wheel side, the metal spring sheet elastic bending, its head end places in the described bending shape safety groove, metal spring sheet and sprocket wheel run-in synchronism; Described sprocket wheel and axle sleeve connect by safety pin, rotate synchronously, and the safety pin tail end is equipped with the spacing card that prevents that it from deviating from; Alarm switch is positioned at transmission shaft the place ahead and is close to metal spring sheet, and metal spring sheet contacts with alarm switch under free state.
As further improvement of the utility model, described safety pin is the middle round metal pin that has grooving.
The utility model is simple and reasonable, and manufacturing process is simple, with low cost, during the sprocket wheel overload; shear pin breakage, axle sleeve and sprocket wheel break away from synchronously rotates, and metal spring sheet breaks away from bending shape safety groove; touch alarm switch, finish overload protection and warn, safe and reliable.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Description of reference numerals: 1-overbolt, 2-alarm switch, 3-metal spring sheet, 4-bending shape safety groove, 5-pressing plate, 6-axle sleeve, 7-safety pin, the spacing card of 8-, 9-sprocket wheel, 10-grooving, 11-bearing seat, 12-transmission shaft, 13-bearing.
The specific embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in Figure 1, the utility model mainly is made up of transmission shaft 12, axle sleeve 6, sprocket wheel 9, bearing seat 11, bearing 13 and overload protecting mechanism, and overload protecting mechanism is made up of bending safety groove 4, metal spring sheet 3, safety pin 7 and alarm switch 2.
As shown in Figure 1, transmission shaft 12 is installed on the bearing seat 11 by bearing 13, axle sleeve 6 is installed in transmission shaft 12 ends and is fixedly linked by pressing plate 5 and key, sprocket wheel 9 is sleeved on the axle sleeve 6, all offer pin-and-hole on sprocket wheel 9 and the axle sleeve 6, safety pin 7 passes sprocket wheel 9 and axle sleeve 6 connects the two, and safety pin 7 tail ends are equipped with the spacing card 8 that prevents that it from deviating from, spacing card 8 is by being bolted on sprocket wheel 9 sides, and sprocket wheel 9 and axle sleeve 6 rotate synchronously; Bending shape safety groove 4 is installed on the pressing plate 5 of transmission shaft 12 ends by bolt, metal spring sheet 3 tail ends are fixed on overbolt 1 end by nut screwing clamping, overbolt 1 other end is fixed on sprocket wheel 9 sides, metal spring sheet 3 elastic bendings, its head end places in the described bending shape safety groove 4, metal spring sheet 3 and sprocket wheel 9 run-in synchronisms; Alarm switch 2 is positioned at transmission shaft 12 the place aheads and is close to metal spring sheet 3, and metal spring sheet 3 contacts with alarm switch 2 under free state.
As shown in Figure 1, the round metal pin that has grooving 10 in the middle of 7 preferred employings of the safety pin in the utility model.
In concrete the application, when sprocket wheel 9 did not transship, sprocket wheel 9 and axle sleeve 6 were because the effect of safety pin 7 realizes run-in synchronism, and the head end of metal spring sheet 3 is positioned at bending shape safety groove 4 all the time, can't touch alarm switch 2, the equipment normal operation.When sprocket wheel 9 transshipped or stuck situation occurs, from grooving 10 fractures, sprocket wheel 9 separated with axle sleeve 10 safety pin 7 owing to bear excessive torque, no longer run-in synchronism, and driving arrangement is protected in transmission shaft 12 idle running effectively; Simultaneously, metal spring sheet 3 detaches in bending shape safety groove 4, because elastic reaction touches alarm switch 2, realizes warning function.
Claims (2)
1. chain wheel overload protective device, comprise transmission shaft (12), axle sleeve (6), sprocket wheel (9) and overload protecting mechanism, axle sleeve (6) is installed in transmission shaft (12) end and fixing, sprocket wheel (9) is sleeved on the axle sleeve (6), it is characterized in that: described overload protecting mechanism comprises bending safety groove (4), metal spring sheet (3), safety pin (7) and alarm switch (2), bending shape safety groove (4) is fixedly mounted on transmission shaft (12) end, metal spring sheet (3) tail end is fixed on overbolt (1) end on sprocket wheel (9) side, metal spring sheet (3) elastic bending, its head end places in the described bending shape safety groove (4), metal spring sheet (3) and sprocket wheel (9) run-in synchronism; Described sprocket wheel (9) and axle sleeve (6) connect by safety pin (7), rotate synchronously, and safety pin (7) tail end is equipped with the spacing card (8) that prevents that it from deviating from; Alarm switch (2) is positioned at transmission shaft (12) the place ahead and is close to metal spring sheet (3), and metal spring sheet (3) contacts with alarm switch (2) under free state.
2. chain wheel overload protective device according to claim 1, its feature also is: described safety pin is the round metal pin that the centre has grooving (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202327436U CN201473033U (en) | 2009-09-09 | 2009-09-09 | Sprocket overload protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202327436U CN201473033U (en) | 2009-09-09 | 2009-09-09 | Sprocket overload protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201473033U true CN201473033U (en) | 2010-05-19 |
Family
ID=42409277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202327436U Expired - Lifetime CN201473033U (en) | 2009-09-09 | 2009-09-09 | Sprocket overload protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201473033U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696715B (en) * | 2009-09-09 | 2011-04-20 | 江苏天奇物流系统工程股份有限公司 | Chain wheel overload protective device |
| CN102312933A (en) * | 2011-10-11 | 2012-01-11 | 中国南方航空工业(集团)有限公司 | Drive shaft coupling |
| CN103129918A (en) * | 2011-12-01 | 2013-06-05 | 洛阳宇航重工机械有限公司 | Continuous-bucket-type conveyor tail-drive differential mechanism |
| CN103359455A (en) * | 2013-07-12 | 2013-10-23 | 海南金海浆纸业有限公司 | Safety device of driving chain wheel of embedded scraper transporter |
| CN103727199A (en) * | 2012-10-12 | 2014-04-16 | 黄淑琴 | Chain transmission overload protection device |
| CN105398750A (en) * | 2015-11-13 | 2016-03-16 | 安徽华光光电材料科技集团有限公司 | Safety pin protection device for glass production and granular material transportation |
| CN107902363A (en) * | 2017-11-30 | 2018-04-13 | 浙江精典数控设备有限公司 | Overload protection arrangement |
| CN110180225A (en) * | 2019-07-11 | 2019-08-30 | 无锡市通用机械厂有限公司 | A kind of thickener overload-alarm structure |
| CN111120597A (en) * | 2019-12-12 | 2020-05-08 | 安徽四创电子股份有限公司 | Belt transmission device with double overload protection |
-
2009
- 2009-09-09 CN CN2009202327436U patent/CN201473033U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696715B (en) * | 2009-09-09 | 2011-04-20 | 江苏天奇物流系统工程股份有限公司 | Chain wheel overload protective device |
| CN102312933A (en) * | 2011-10-11 | 2012-01-11 | 中国南方航空工业(集团)有限公司 | Drive shaft coupling |
| CN103129918A (en) * | 2011-12-01 | 2013-06-05 | 洛阳宇航重工机械有限公司 | Continuous-bucket-type conveyor tail-drive differential mechanism |
| CN103727199A (en) * | 2012-10-12 | 2014-04-16 | 黄淑琴 | Chain transmission overload protection device |
| CN103359455A (en) * | 2013-07-12 | 2013-10-23 | 海南金海浆纸业有限公司 | Safety device of driving chain wheel of embedded scraper transporter |
| CN105398750A (en) * | 2015-11-13 | 2016-03-16 | 安徽华光光电材料科技集团有限公司 | Safety pin protection device for glass production and granular material transportation |
| CN107902363A (en) * | 2017-11-30 | 2018-04-13 | 浙江精典数控设备有限公司 | Overload protection arrangement |
| CN110180225A (en) * | 2019-07-11 | 2019-08-30 | 无锡市通用机械厂有限公司 | A kind of thickener overload-alarm structure |
| CN111120597A (en) * | 2019-12-12 | 2020-05-08 | 安徽四创电子股份有限公司 | Belt transmission device with double overload protection |
| CN111120597B (en) * | 2019-12-12 | 2022-12-06 | 安徽四创电子股份有限公司 | Belt transmission device with double overload protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100519 Effective date of abandoning: 20090909 |