CN100365305C - Overload alarming protector and method thereof - Google Patents
Overload alarming protector and method thereof Download PDFInfo
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- CN100365305C CN100365305C CNB2005100151125A CN200510015112A CN100365305C CN 100365305 C CN100365305 C CN 100365305C CN B2005100151125 A CNB2005100151125 A CN B2005100151125A CN 200510015112 A CN200510015112 A CN 200510015112A CN 100365305 C CN100365305 C CN 100365305C
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- flange
- disk
- active toothed
- toothed disk
- shaft
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Abstract
The present invention relates to an overload alarming protection device and a method thereof. The device comprises an output shaft and an input shaft, wherein the front end of the output shaft is provided with a round groove which is sheathed and fixed with a spline shaft, the front end of the spline shaft is provided with an outer backstop, and the outer surface of the back end of the spline shaft is provided with a spline groove. The front end of the spline shaft is sheathed with a fixed fluted disc, and the back end is sheathed with a movable fluted disc which is provided with a splined hole, and a supporting disc. The back end of the movable fluted disc is provided with a flange, and the opposite end surfaces of the movable fluted disc and the supporting disc are respectively distributed with a plurality of corresponding round holes. Springs are arranged in the holes. The back end of the spline shaft is screwed with a gasket and a lock nut. The front end of the input shaft is inserted in the round groove of the output shaft, and a flat key is arranged between the front end of the input shaft and the round groove. The back end surface of the flange which is near to the movable fluted disc is provided with an alarming limit switch and a protective limit switch. The device is also provided with an electrical control device which is composed of a transformer and two relays, and the relays of the electrical control device are respectively connected with the two limit switches. The overload alarming protection device has the advantages of simple structure and strong reliability, and the overload alarming protection device is suitable for a shafting transmission system and meets the requirements of users such as economic and reliable products.
Description
Technical field
The invention belongs to the device of prevention power transmission system overload, particularly relate to a kind of overload alarming protector and method.
Background technique
In power transmission system; axle by connection device transferring power is that transmission is the widely used kind of drive of power transmission system; in the power transmission process; if changing suddenly, operating mode cause load to strengthen suddenly; then can cause various accidents; at present; usually adopt when engineering design, to improve the setting of safety coefficient or method such as overcurrent protection is set and solve; but the setting that improves safety coefficient must increase type; cost of equipment is increased, adopt overcurrent protection then can owing to mains supply when unstable current fluctuation big, cause signal thick; poor reliability, so they all can not satisfy the requirement of user to product reliability and Economy well.
Summary of the invention
This reality invention provides a kind of simple in structure for solving the technical problem that exists in the known technology, good reliability, electromechanical be applicable to that axle is the overload alarming protector and the method for transmission.
Technological scheme and method that the present invention takes for the technical problem that exists in the solution known technology are:
A kind of overload alarming protector; include output shaft and input shaft; on the termination of output shaft, be provided with flange; have circular groove on the flange; to be fixed with the front end outer wall be that Guang Bi rear end outer wall has spline to suit on input shaft; design has the backstop that is raised in outer wall on the termination of front end; the termination of rear end is provided with the sleeve shape splined shaft of external screw thread; the internal diameter that circular groove on its front end external diameter and the output shaft termination is housed at the front end sleeve of splined shaft matches; the rear end has flange and is evenly equipped with the fixed tooth disk of tooth in the flange rear end; be set with active toothed disk and the supporting disk that has splined hole in the rear end that has spline of splined shaft; be provided with the tooth that is meshed with tooth on the fixed tooth disk at the front end of active toothed disk; the rear end is provided with flange; on the opposing end faces of active toothed disk and supporting disk, be evenly equipped with several to corresponding circular hole; the spring that makes active toothed disk and supporting disk keep certain interval and pressure is housed in the circular hole; packing ring and locknut on the follower head of splined shaft, have been screwed; suit is fixed with splined shaft and is fixed with fixed tooth disk at the splined shaft suit; its front end of input shaft behind active toothed disk and the supporting disk is inserted in the circular groove of output shaft front end and flat key is housed between them; be provided with roller sliding axle type alarm limit bit switch and protection limit switch at ear end face place near the flange on the active toothed disk; it is fixed on respectively on the immovable point adjacent with this device; it leaves certain interval as the roller of touch part and the ear end face of flange; wherein the gap between the ear end face of the roller sliding axle of alarm limit bit switch and flange is less than the gap between the ear end face of the roller sliding axle of protecting limit switch and flange; this device also is provided with by transformer and two electric control equipments that relay is formed, and its relay is connected with two limit switches respectively.
Overload alarming protector of the present invention can also be taked following technical measures:
Described alarm limit bit switch and protection limit switch by fixed base, be inserted into axle sleeve on the fixed base, in the axle sleeve of packing into spring, as packing in the axle sleeve and have at the rear end outer wall that vertical guide groove front end is equipped with the sliding axle of roller, contact and the set screw nut that is contained in the guide finger on the axle sleeve wall and is located at the rear end formed in the rear end of contact.
A kind ofly fasten the method that overload-alarm protection is provided at one; the termination of this system is provided with flange; have on the flange circular groove output shaft, be sleeved on splined shaft in the circular groove of output shaft, be sleeved on fixed tooth disk on the splined shaft front end, be sleeved on that rear end on the splined shaft is provided with active toothed disk, the supporting disk of flange, spring and the input shaft that is contained between active toothed disk and the supporting disk connects to form successively, described method comprises:
Alarm limit bit switch and protection limit switch are set at the flange ear end face place of active toothed disk, and the gap between the ear end face of the contact of alarm limit bit switch and flange is less than the gap between the ear end face of the contact of protecting limit switch and flange;
Moment of torsion is passed to input shaft by described fixed tooth disk and active toothed disk;
Variation with moment of torsion when overload makes active toothed disk that axial displacement take place on splined shaft by the tooth on fixed tooth disk and the active toothed disk;
The axial displacement of active toothed disk is triggered the alarm limit bit switch by its flange, make the alarm limit bit switch send alarm signal, so that operator take to fall the lotus measure;
When moment of torsion continues to strengthen, its flange trigger protection limit switch is passed through in the axial displacement of active toothed disk, make the protection limit switch send protective signal, and coupled relay is cut off the electricity supply, avoid accident to take place.
Advantage and good effect that overload alarming protector of the present invention has are: simple in structure, economical and practical, under the situation of the setting that does not improve safety coefficient, promptly needn't increase under the situation of type and just can avoid owing to load strengthens the various accidents that cause suddenly; Since this device adopted fixed tooth disk and in axial sliding active toothed disk as the middleware transmitting torque, and adopt can two limit switches that mechanical variables is transformed into electrical signal be provided and report to the police and protection, it can send alarm signal when causing active toothed disk to move axially because of overload, operator are intervened, automatic or manual reduces working load, as it is invalid to fall lotus, active toothed disk continues to strengthen mobile, then can the trigger protection limit switch, electric control equipment is cut off the electricity supply, avoid the generation of accident, thereby good reliability; The design of electromechanical integration is applicable to that various axles are transmission system, has satisfied the requirement of user to product economy and reliability.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the electrical connection diagram of limit switch of the present invention.
Label among the figure is respectively: the 1-output shaft; The 2-bolt; The 3-back-up ring; The 4-flat key; The 5-splined shaft; 6-fixed tooth disk 7-active toothed disk; The 8-spring; The 9-supporting disk; The 10-locknut; The 11-input shaft; The 12-roller; The 13-sliding axle; The 14-axle sleeve; The 15-guide finger; The 16-spring; 17-backstop; The 18-key; 19-protects limit switch; 20-alarm limit bit switch; The 21-fixed base; 22-relay I; 23-relay II.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1; overload alarming protector; include output shaft 1 and input shaft 11; on the termination of output shaft, be provided with flange; have circular groove on the flange; on input shaft, be set with sleeve shape splined shaft 5; its front end outer wall is that Guang Bi rear end outer wall has spline; design has the backstop 17 that is raised in outer wall on the termination of front end; the termination of rear end is provided with external screw thread; key 18 is housed between input shaft and splined shaft; on the termination of the front end of splined shaft, be equiped with back-up ring 3; be coated with bolt 2 on the back-up ring; the lower end of bolt is screwed on the termination of input shaft; splined shaft is by back-up ring and being bolted on the input shaft; front end sleeve at splined shaft is equipped with fixed tooth disk 6; the internal diameter of the circular groove on its front end external diameter and the output shaft termination matches; the rear end has flange and is evenly equipped with stepped tooth in the flange rear end; be set with the active toothed disk 7 and the supporting disk 9 that have the splined hole that matches with splined hole on the splined shaft in the rear end that has spline of splined shaft; be provided with the tooth that is meshed with tooth on the fixed tooth disk at the front end of active toothed disk; the rear end is provided with flange; on the opposing end faces of active toothed disk and supporting disk, be evenly equipped with 5 pairs of corresponding circular holes; the spring 8 that makes active toothed disk and supporting disk keep certain interval and pressure is housed in the circular hole; packing ring and locknut 10 on the follower head of splined shaft, have been screwed; suit is fixed with splined shaft and is fixed with fixed tooth disk at the splined shaft suit; its front end of input shaft behind active toothed disk and the supporting disk is inserted in the circular groove of output shaft front end and flat key 4 is housed between them; so that output shaft 1 and input shaft 11 link together; be relatively set with at ear end face place near the flange on the active toothed disk roller sliding axle type alarm limit bit switch 20 and and the protection limit switch 19; it is fixed on the immovable point adjacent with this device by support respectively; limit switch is by fixed base 21; be inserted into the axle sleeve 14 on the fixed base; pack into spring 16 in the axle sleeve; as packing in the axle sleeve and have the sliding axle 13 that vertical guide groove front end is equipped with roller 12 in the rear end of contact at the rear end outer wall; be contained in the guide finger 15 on the axle sleeve wall; the contact and the set screw nut that are located at the rear end are formed; guide finger is deep in vertical guide groove of sliding axle; it leaves certain interval as the roller sliding axle of contact and the ear end face of the flange on the active toothed disk; wherein the gap (H1) between the ear end face of the roller sliding axle of alarm limit bit switch and flange is less than the gap (H2) between the ear end face of the roller sliding axle of protecting limit switch and flange; this device also is provided with by transformer and relay I; the electric control equipment that relay II forms; it is contained in the regulator cubicle; make the scene be in safe operating voltage state; two relay is connected with two limit switches respectively, and its electrical connection diagram is seen Fig. 2.
Long for guaranteeing its reliable operation life-span, the key position of present embodiment has carried out strengthening design, active toothed disk and fixed tooth disk all adopt high duty alloy material and nitridation process to strengthen wear resistance, because roller is to roll to contact with active toothed disk, roller employing Bearing Steel integral quenching handle, and relying on the support of soft spring as sliding axle, friction reduced when roller was contacted with active toothed disk.Spring loaded on the fluted disc adopts special high-quality spring, and its fatigue resistance is big, and distortion is uniform and stable after the load.This device is applicable to coaxial connection, rotating speed＜500rpm, and torque＜400Nm, protection is provided with scope general desirable 1.5～2 with the torque ratio of reporting to the police.
The working principle of overload alarming protector of the present invention is: output shaft passes to input shaft with moment of torsion by fixed tooth disk and active toothed disk during work; it is in dynamic equilibrium state; be that tooth on fixed tooth disk and the active toothed disk is in complete engagement; after customer equipment load changes; its change in torque passes to flat key and fixed tooth disk successively by output shaft; fixed tooth disk passes to active toothed disk with moment of torsion again by flank engagement; because splined shaft is axially fixed on the input shaft by bolt and back-up ring; and supporting disk is axially fixed on the splined shaft by locknut; so when the axial thrust load of two fluted disc engagement generations is not equal to the thrust of all springs that calculate by designing requirement on the active toothed disk; active toothed disk will move axially in the splined shaft upper edge; up to balance again; if when the amount of movement of active toothed disk reached the gap width H1 that the alarm limit bit switch sets, this device sent alarm signal.But automatic or manual reduces working load after the warning; at this moment moment of torsion reduces thereupon; active toothed disk is return; alarm signal is closed; as it is invalid to fall lotus; moment of torsion continues to increase; active toothed disk will axially be pushed down the roller on the alarm limit bit switch, and roller rotates and drive sliding axle and active toothed disk is mobile in the same way, keeps in touch; keep warning; when the amount of movement of active toothed disk reached the gap width H2 that the protection limit switch sets, the alarm limit bit switch sent protective signal, the actuating of relay of this signal linkage control electric device; the generation of accident is avoided in instant outage shutdown.
Claims (3)
1. overload alarming protector; include output shaft and input shaft; it is characterized in that: on the termination of output shaft, be provided with flange; have circular groove on the flange; to be fixed with the front end outer wall be that Guang Bi rear end outer wall has spline to suit on input shaft; design has the backstop that is raised in outer wall on the termination of front end; the termination of rear end is provided with the sleeve shape splined shaft of external screw thread; the internal diameter that circular groove on its front end external diameter and the output shaft termination is housed at the front end sleeve of splined shaft matches; the rear end has flange and is evenly equipped with the fixed tooth disk of tooth in the flange rear end; be set with active toothed disk and the supporting disk that has splined hole in the rear end that has spline of splined shaft; be provided with the tooth that is meshed with tooth on the fixed tooth disk at the front end of active toothed disk; the rear end is provided with flange; on the opposing end faces of active toothed disk and supporting disk, be evenly equipped with several to corresponding circular hole; the spring that makes active toothed disk and supporting disk keep certain interval and pressure is housed in the circular hole; packing ring and locknut on the follower head of splined shaft, have been screwed; suit is fixed with splined shaft and is fixed with fixed tooth disk at the splined shaft suit; its front end of input shaft behind active toothed disk and the supporting disk is inserted in the circular groove of output shaft front end and flat key is housed between them; be provided with alarm limit bit switch and protection limit switch at ear end face place near the flange on the active toothed disk; it is fixed on respectively on the immovable point adjacent with this device; the ear end face of its contact and flange leaves certain interval; wherein the gap between the ear end face of the contact of alarm limit bit switch and flange is less than the gap between the ear end face of the contact of protecting limit switch and flange; this device also is provided with by transformer and two electric control equipments that relay is formed, and its relay is connected with two limit switches respectively.
2. overload alarming protector according to claim 1 is characterized in that: described alarm limit bit switch and protection limit switch by fixed base, be inserted into axle sleeve on the fixed base, in the axle sleeve of packing into spring, as packing in the axle sleeve and have at the rear end outer wall that vertical guide groove front end is equipped with the sliding axle of roller, contact and the set screw nut that is contained in the guide finger on the axle sleeve wall and is located at the rear end formed in the rear end of contact.
3. fasten the method that overload-alarm protection is provided at one for one kind; the termination of this system is provided with flange; have on the flange circular groove output shaft, be sleeved on splined shaft in the circular groove of output shaft, be sleeved on fixed tooth disk on the splined shaft front end, be sleeved on that rear end on the splined shaft is provided with active toothed disk, the supporting disk of flange, spring and the input shaft that is contained between active toothed disk and the supporting disk connects to form successively, it is characterized in that: described method comprises:
Alarm limit bit switch and protection limit switch are set at the flange ear end face place of active toothed disk, and the gap between the ear end face of the contact of alarm limit bit switch and flange is less than the gap between the ear end face of the contact of protecting limit switch and flange;
Moment of torsion is passed to input shaft by described fixed tooth disk and active toothed disk;
Variation with moment of torsion when overload makes active toothed disk that axial displacement take place on splined shaft by the tooth on fixed tooth disk and the active toothed disk;
The axial displacement of active toothed disk is triggered the alarm limit bit switch by its flange, make the alarm limit bit switch send alarm signal, so that operator take to fall the lotus measure;
When moment of torsion continues to strengthen, its flange trigger protection limit switch is passed through in the axial displacement of active toothed disk, make the protection limit switch send protective signal, and coupled relay is cut off the electricity supply, avoid accident to take place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100151125A CN100365305C (en) | 2005-09-20 | 2005-09-20 | Overload alarming protector and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100151125A CN100365305C (en) | 2005-09-20 | 2005-09-20 | Overload alarming protector and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1779283A CN1779283A (en) | 2006-05-31 |
| CN100365305C true CN100365305C (en) | 2008-01-30 |
Family
ID=36769711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100151125A Expired - Fee Related CN100365305C (en) | 2005-09-20 | 2005-09-20 | Overload alarming protector and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100365305C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10738836B2 (en) | 2016-11-30 | 2020-08-11 | Saint-Gobain Performance Plastics Rencol Limited | Adjustable torque assembly |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110445B (en) * | 2014-07-01 | 2016-04-06 | 黑龙江科技大学 | Winning machine cutting part Motor torque axle protection mechanism |
| CN106926511B (en) * | 2017-05-11 | 2018-06-29 | 荣成华东锻压机床股份有限公司 | The protection of mechanical press electromechanical overload and stretching device and method |
| CN112158342B (en) * | 2020-09-25 | 2022-07-08 | 兰州万里航空机电有限责任公司 | A guided way subassembly for electric equipment is retrieved to umbrella area |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3981382A (en) * | 1974-05-28 | 1976-09-21 | J. Bobst & Fils S.A. | Safety clutch device |
| CN85105816A (en) * | 1985-07-31 | 1987-01-28 | 维斯特法利亚制铁联合有限责任公司 | The transmission device of overload protection-be specially adapted to drive coal plough or other similar machinery are arranged |
| US4910419A (en) * | 1988-05-16 | 1990-03-20 | Tsubakimoto Chain Co. | Overload detection mechanism for motor-driven linear actuator |
| CN2078825U (en) * | 1990-03-24 | 1991-06-12 | 江西省宜春电机厂 | Double-ratio differential harmonic gear reduction unit |
| CN2539009Y (en) * | 2002-05-22 | 2003-03-05 | 哈尔滨煤矿机械研究所 | Torque-limiting overload protector |
| CN2567474Y (en) * | 2002-09-16 | 2003-08-20 | 刘勇 | Planetary fire gate buncher |
| CN2831569Y (en) * | 2005-09-20 | 2006-10-25 | 天津减速机股份有限公司 | Overload warning protector |
-
2005
- 2005-09-20 CN CNB2005100151125A patent/CN100365305C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3981382A (en) * | 1974-05-28 | 1976-09-21 | J. Bobst & Fils S.A. | Safety clutch device |
| CN85105816A (en) * | 1985-07-31 | 1987-01-28 | 维斯特法利亚制铁联合有限责任公司 | The transmission device of overload protection-be specially adapted to drive coal plough or other similar machinery are arranged |
| US4910419A (en) * | 1988-05-16 | 1990-03-20 | Tsubakimoto Chain Co. | Overload detection mechanism for motor-driven linear actuator |
| CN2078825U (en) * | 1990-03-24 | 1991-06-12 | 江西省宜春电机厂 | Double-ratio differential harmonic gear reduction unit |
| CN2539009Y (en) * | 2002-05-22 | 2003-03-05 | 哈尔滨煤矿机械研究所 | Torque-limiting overload protector |
| CN2567474Y (en) * | 2002-09-16 | 2003-08-20 | 刘勇 | Planetary fire gate buncher |
| CN2831569Y (en) * | 2005-09-20 | 2006-10-25 | 天津减速机股份有限公司 | Overload warning protector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10738836B2 (en) | 2016-11-30 | 2020-08-11 | Saint-Gobain Performance Plastics Rencol Limited | Adjustable torque assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1779283A (en) | 2006-05-31 |
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Granted publication date: 20080130 Termination date: 20091020 |