CN102518690A - Torque limiter - Google Patents
Torque limiter Download PDFInfo
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- CN102518690A CN102518690A CN2011104278366A CN201110427836A CN102518690A CN 102518690 A CN102518690 A CN 102518690A CN 2011104278366 A CN2011104278366 A CN 2011104278366A CN 201110427836 A CN201110427836 A CN 201110427836A CN 102518690 A CN102518690 A CN 102518690A
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Abstract
The invention provides a torque limiter, which relates to the field of mechanical transmission and comprises a first transmission body, a second transmission body, a bolt, a spring, a press gasket and a locking adjusting nut. The first transmission body is provided with a gear disc surface A, the gear disc surface A is provided with a gear disc A, and a through hole A is arranged at the circle center of the gear disc A. The second transmission body is provided with a gear disc surface B, the gear disc surface B is provided with a gear disc B meshing with the gear disc A, and a through hole B is arranged at the circle center of the gear disc B. The press gasket is provided with a through hole C, and the bolt penetrates through the through hole A of the first transmission body, the through hole B of the second transmission body, the spring and the through hole C of the press gasket sequentially and presses the spring between the second transmission body and the press gasket by being matched with the nut. The torque limiter in the structure is arranged between an output shaft of a transmission device and a bearing shaft of an external load to serve as a connecting member, therefore, the transmission device is protected from being damaged due to abnormal torque rich caused by the outside affection.
Description
[technical field]
The present invention relates to mechanical transmission fields, specifically, relate to a kind of torque limiter between driving and transmission device output shaft and working machine or the actuator's reach that is used to connect.
[background technique]
Generally, being connected between transmission output shaft and the external load all is that unprotect connects, and when external load is caused under the situation of abnormal operation or counter-rotating by artificial or other active force, produces excessive torque, damages driving mechanism and drive unit easily.
For example, a kind of automatic cover-turning formula toilet is arranged at present, the automatic cover-turning of this toilet is that the output shaft through a motor is connected with a bearing of toilet lid and carries out; Carry out when an opportunity arises people, the output shaft of motor rotates the bearing rotation that drives toilet lid makes toilet lid dig, still; In some cases, the people for when renovating, because accidentalia such as user's misoperation; For example; Moment digs toilet lid, depress etc., and this moment, the bearing of toilet lid and the bearing of motor still are in coupled condition; Because the people is when turning over pressure, the moment of torsion between the bearing of toilet lid and the output shaft of motor is excessive to cause transmission system (like gear etc.) and drive system (like motor) to be damaged; The above-mentioned mistake by this, in application in the majority such as daily life and commercial production, need a kind of connection protective gear to be positioned between drive system, transmission system and the external load, even can guarantee also under the torque condition that driving and transmission system are not destroyed.
[summary of the invention]
The objective of the invention is to overcome in the existing technology and to drive and transmission device output shaft and external load did not have torque protection and cause damaging driving and transmission system easily and fail a kind of torque limiter that deficiency provides when being connected.
The present invention realizes through following technological scheme: a kind of torque limiter, and it comprises first transmission body, second transmission body, bolt, spring, clamping pad and nut; Said first transmission body is provided with a gear card A, and said gear card A is provided with gear disk A, and the home position place of said gear disk A is provided with a through hole A; Said second transmission body is provided with a gear card B, and said gear card B is provided with and is suitable for and said gear disk A meshed gears dish B, and the home position place of said gear disk B is provided with a through hole B; Said clamping pad be provided with a through hole C; The gear disk A of said first transmission body and the gear disk B of said second transmission body are meshing with each other, and the through hole C of the through hole A of said screw bolt passes first transmission body, through hole B, spring and the clamping pad of second transmission body is pressed on spring between second transmission body and the clamping pad through cooperating with said nut.
Do further to set forth in the face of above technological scheme down:
Further; Said second transmission body also is provided with the driving protection shell of a tubular; The lower end surface of said driving protection shell is arranged at the reverse side of gear card B, and an end, spring, clamping pad and the nut of said bolt thread end is wrapped in the said driving protection shell.
Further, the head of said bolt is provided with a draw-in groove.
Further, the upper-end surface of said driving protection shell is provided with a plurality of grooves.
Beneficial effect of the present invention is: the torque limiter of this structure is arranged between the reach of output shaft and external load of transmission device as a kind of connector element; Specifically; The output shaft of transmission device is connected with first transmission body of this structure; The reach of external load is connected with second transmission body of this structure,, drives the reach rotation of external load again through this torque limiter through this torque limiter of output shaft drive of transmission device; If external load takes place unusual, when surpassing rated torque, the gear disk A of first transmission body and the gear disk B of second transmission body will slide, and cut off the reverse transmission of excessive load moment of torsion to the transmission device output shaft; By this, transmission and drive unit can be damaged because of crossing moment of torsion, play a protective role.
[description of drawings]
Fig. 1 is an overall structure schematic representation of the present invention;
Fig. 2 is a cross-sectional view of the present invention;
Fig. 3 is the structural representation of the present invention's second transmission body;
Fig. 4 is a user mode structural representation of the present invention.
Reference character: 1, first transmission body; 2, second transmission body; 3, bolt; 4, spring; 5, clamping pad; 6, nut; 7, the output shaft of transmission device; 8, the reach of external load; 11, gear disk A; 21, gear disk B; 22, driving protection shell.
[embodiment]
Below in conjunction with accompanying drawing and embodiment the present invention is done and to further describe:
With reference to Fig. 1 and shown in Figure 2, a kind of torque limiter that this invention discloses, it comprises first transmission body 1, second transmission body 2, bolt 3, spring 4, clamping pad 5 and nut 6; Said first transmission body 1 is provided with a gear card A, and said gear card A is provided with gear disk A11, and the home position place of said gear disk A11 is provided with a through hole A; With reference to shown in Figure 3; Said second transmission body 2 is provided with a gear card B; Said gear card B is provided with and is suitable for and said gear disk A11 meshed gears dish B21; The home position place of said gear disk B21 is provided with a through hole B, and said second transmission body 2 also is provided with the driving protection shell 22 of a tubular, and the lower end surface of said driving protection shell 22 is arranged at the reverse side of gear card B; Said clamping pad 5 be provided with a through hole C; The gear disk B21 of the gear disk A11 of said first transmission body 1 and said second transmission body 2 is meshing with each other, and the through hole C of through hole B, spring 4 and clamping pad 5 that said bolt 3 passes through hole A, second transmission body 2 of first transmission body 1 successively is pressed on spring 4 between second transmission body 2 and the clamping pad 5 through cooperating with said nut 6; One end of said bolt 3 threaded end, spring 4, clamping pad 5 and nut 6 are wrapped in the said driving protection shell 22.In addition, the head of said bolt 3 is provided with a draw-in groove.The upper-end surface of said driving protection shell 22 evenly is provided with four grooves.
With reference to shown in Figure 4; The torque limiter of this structure is arranged between the reach 8 of output shaft 7 and external load of transmission device as a kind of connector element; Specifically, the output shaft 7 of transmission device is connected with first transmission body 1 of this structure, the reach 8 of external load is connected with second transmission body 2 of this structure; Output shaft 7 through transmission device drives this torque limiter, drives reach 8 rotations of external load again through this torque limiter; If external load is by excessive outer active force abnormal operation the time, when surpassing prescribed torque, the gear disk B21 of the gear disk A11 of first transmission body 1 and second transmission body 2 will slide, and cut off the reverse transmission of excessive load moment of torsion to the transmission device output shaft; By this, transmission and drive unit can be damaged because of crossing moment of torsion, play a protective role.
According to the announcement and the instruction of above-mentioned specification, those skilled in the art in the invention can also carry out suitable change and modification to above-mentioned mode of execution.Therefore, the embodiment that discloses and describe above the present invention is not limited to also should fall in the protection domain of claim of the present invention modifications more of the present invention and change.In addition, although used some specific terms in this specification, these terms are explanation for ease just, the present invention is not constituted any restriction.
Claims (4)
1. torque limiter, it is characterized in that: it comprises first transmission body, second transmission body, bolt, spring, clamping pad and nut; Said first transmission body is provided with a gear card A, and said gear card A is provided with gear disk A, and the home position place of said gear disk A is provided with a through hole A; Said second transmission body is provided with a gear card B, and said gear card B is provided with and is suitable for and said gear disk A meshed gears dish B, and the home position place of said gear disk B is provided with a through hole B; Said clamping pad be provided with a through hole C; The gear disk A of said first transmission body and the gear disk B of said second transmission body are meshing with each other, and the through hole C of the through hole A of said screw bolt passes first transmission body, through hole B, spring and the clamping pad of second transmission body is pressed on spring between second transmission body and the clamping pad through cooperating with said nut.
2. torque limiter according to claim 1; It is characterized in that: said second transmission body also is provided with the driving protection shell of a tubular; The lower end surface of said driving protection shell is arranged at the reverse side of gear card B, and an end, spring, clamping pad and the nut of said bolt thread end is wrapped in the said driving protection shell.
3. torque limiter according to claim 1 is characterized in that: the head of said bolt is provided with a draw-in groove.
4. torque limiter according to claim 2 is characterized in that: the upper-end surface of said driving protection shell is provided with a plurality of grooves.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2011104278366A CN102518690A (en) | 2011-12-16 | 2011-12-16 | Torque limiter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN2011104278366A CN102518690A (en) | 2011-12-16 | 2011-12-16 | Torque limiter |
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CN102518690A true CN102518690A (en) | 2012-06-27 |
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CN2011104278366A Pending CN102518690A (en) | 2011-12-16 | 2011-12-16 | Torque limiter |
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Application publication date: 20120627 |