CN102032285B - Torque overload protection device - Google Patents
Torque overload protection device Download PDFInfo
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- CN102032285B CN102032285B CN 200910196404 CN200910196404A CN102032285B CN 102032285 B CN102032285 B CN 102032285B CN 200910196404 CN200910196404 CN 200910196404 CN 200910196404 A CN200910196404 A CN 200910196404A CN 102032285 B CN102032285 B CN 102032285B
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- driving
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- retainer
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- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
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- Mechanically-Actuated Valves (AREA)
Abstract
The invention relates to a torque overload protection device. The device comprises a driving head, a driving seat, driving balls, a pressing ring, a driving device, an adjusting screw, an adjusting ball, an adjusting block, a butterfly spring group and a fixing bolt, wherein the cylindrical driving head is provided with a middle hole matched with a valve rod; a plurality of driving holes are uniformly formed on the top of the outer wall of the driving head; a limiting flange is arranged in the middle of the outer wall of the driving head; a plurality of bolt holes are formed at the periphery of the driving seat; the driving seat is provided with a middle hole matched with the excircle of a chattering head, and a plurality of driving grooves are uniformly distributed on the top end face of the middle hole; the driving seat is connected with the driving device through the fixing bolt; the lower section of the adjusting screw can stretch into a middle hole of the adjusting block, and the lower end of the adjusting screw is in compression joint with the adjusting ball; and the driving balls are arranged in the driving grooves and can move to the driving holes along the driving grooves. Compared with the prior art, the invention has the advantages that: the torque overload protection device is simple, convenient and accurate, has high control accuracy, can be set on site and the like.
Description
Technical field
The present invention relates to a kind of protective gear, especially relate to a kind of torque overload protective gear.
Background technique
Existing valve is because self operation moment of torsion is excessive, and perhaps input torque such as handwheel, Electric actuator is excessive, has surpassed the maximum strength of valve or Worm gear case, distortion or the destruction of valve, the housing of Worm gear case phenomenon such as break often occurs.Existing solution is utilized the weak link of break pin as power transmission line more.When the power of input during greater than setting value, break pin is at first cut off inefficacy, and power transmission line interrupts, and important valve and Worm gear case etc. have obtained protection.
Existing technical scheme, because the influence of material and processing, according to the produced break pin of calculated diameter, its failure intensity but has than big difference with setting protection value, causes control accuracy lower.The diameter of break pin and matching hole is difficult to as requested to change flexibly at the scene, causes the setting value of safe torque can't Field adjustment, and versatility is relatively poor.Break pin needs in time to change after inefficacy, therefore needs standby redundancy, maintenance workload very big.
Summary of the invention
The object of the invention is exactly for the defective that overcomes above-mentioned existing technology existence a kind of torque overload protective gear to be provided.
The object of the invention can be realized through following technological scheme:
A kind of torque overload protective gear is characterized in that, this device comprises driving head, retainer, transmission ball, pressure ring, transmission device, adjusting screw, adjusting ball, regulating block, butterfly spring group, fixing bolt; Described driving head is cylindrical, and it is provided with the mesopore that cooperates with valve rod, and the outer wall top of described driving head evenly is provided with a plurality of driving holes; This driving hole bottom is the conical surface, and described driving head outer wall middle part is provided with defining flange, and described retainer is a disc; Its circumference is provided with a plurality of bolts hole, and described retainer is provided with and trembles the mesopore that a cylindrical cooperates, and its top end is a plurality of driving grooves of distribution evenly; Described pressure ring is a ring, and compressing the surface that is connected with the transmission ball is the conical surface, and described retainer is connected with the transmission device fixing bolt; The hypomere of described adjusting screw can stretch in the mesopore of regulating block; Its lower end compresses with the adjusting ball and is connected, and described butterfly spring group upper end is connected with regulating block, and its lower end is connected with pressure ring; Described transmission ball is arranged in the driving groove, and it can move in driving hole along driving groove.
Described transmission device is cap transmission or handwheel etc.
The cross section of described driving groove is a circular arc.
Compared with prior art, the present invention has the following advantages:
1, only the rotation adjusting screw can preestablish the moment of torsion that needs protection, simple and convenient accurately, solved control accuracy lower, can't the on-the-spot problem of setting.And because predefined torque range is bigger, and same this device can be protected different equipment, versatility is better, helps reducing the production management cost.
2, when the driving torque of transmission device surpasses preset value, power transmission line is owing to idle running between retainer and driving head is interrupted.In case the driving torque of transmission device is during once more less than preset value, power transmission line recovers again automatically, need not to change any part, has avoided existing technology need change the trouble of break pin again.
Description of drawings
Fig. 1 is the structural representation of a kind of torque overload protective gear of the present invention when normal moment of torsion transmits;
Fig. 2 is the structural representation of a kind of torque overload protective gear of the present invention when cutting off the moment of torsion transmission;
Fig. 3 is the driving head plan view of a kind of torque overload protective gear of the present invention;
Fig. 4 is the driving head A-A sectional drawing of a kind of torque overload protective gear of the present invention;
Fig. 5 is the retainer plan view of a kind of torque overload protective gear of the present invention;
Fig. 6 is the retainer B-B sectional drawing of a kind of torque overload protective gear of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is elaborated.
Embodiment
Like Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6; A kind of torque overload protective gear, this device comprise driving head 1, retainer 2, transmission ball 3, pressure ring 4, transmission device 5, adjusting screw 6, regulate ball 7, regulating block 8, butterfly spring group 9, fixing bolt 10.Described transmission device 5 can be a cap transmission, also can be other driving arrangements such as handwheel.Described driving head 1 is cylindrical, and mesopore cooperates with valve rod, and outer circular top part is evenly distributed with a plurality of driving holes 12, and driving hole 12 bottoms are the conical surface, and the cylindrical middle part is a defining flange.Described retainer 2 is a disc, is distributed with a plurality of bolts hole on the circumference, and mesopore cooperates with the cylindrical of driving head 1, and top end is evenly distributed with a plurality of driving grooves 13, and the cross section of driving groove 13 is a circular arc.Described pressure ring 4 is a ring, and the bottom is the conical surface, is pressed on the transmission ball 3.
When the driving torque of transmission device 5 did not surpass preset value, the outside component of driving hole 12 conical surfaces that transmission ball 3 receives was not more than the inside component on pressure ring 4 conical surfaces, and half of transmission ball 3 remains in the driving groove 13, and second half remains in the driving hole 12.But transmission this moment ball 3 normal delivery moments of torsion, i.e. the rotation torque of transmission device 5 generations is delivered on the retainer 2 through fixing bolt 10, is delivered on the driving head 1 through transmission ball 3 again, and driving head 1 drives valve again and rotates.
When the driving torque of transmission device 5 surpasses preset value; The outside component of driving hole 12 conical surfaces that transmission ball 3 receives, greater than the inside component on pressure ring 4 conical surfaces, transmission ball 3 will be in driving groove 13; Break away from driving hole 12 gradually, 1 idle running of retainer 2 and driving head.The rotation torque of transmission device 5 generations this moment is cut off owing to transmission ball 3 breaks away from, and can't be delivered on the driving head 1 again, and equipment such as valve have obtained protection.
In case transmission ball 3 outwards moves along driving groove 13; Pressure ring 4 will be because conical surface effect will raise, and butterfly spring group 9 decrements increase, and produce bigger impacting force; The inside component that transmission ball 3 receives on pressure ring 4 conical surfaces increases, and transmission ball 3 is in the dynamic equilibrium state that in trend driving hole 12, resets.During once more less than preset value, half of transmission ball 3 gets in driving hole 12 at the driving torque of transmission device 5, but the normal delivery moment of torsion.
Torque overload protective gear provided by the invention, only rotation adjusting screw 6 can preestablish the moment of torsion that needs protection, simple and convenient accurately, solved control accuracy lower, can't the on-the-spot problem of setting.And because predefined torque range is bigger, and same this device can be protected different equipment, versatility is better, helps reducing the production management cost.Power transmission line interrupts because of idle running, can recover automatically again again, need not to change any part, has avoided existing technology need change the trouble of break pin again.
Claims (3)
1. a torque overload protective gear is characterized in that, this device comprises driving head, retainer, transmission ball, pressure ring, transmission device, adjusting screw, adjusting ball, regulating block, butterfly spring group, fixing bolt; Described driving head is cylindrical, and it is provided with the mesopore that cooperates with valve rod, and the outer wall top of described driving head evenly is provided with a plurality of driving holes; This driving hole bottom is the conical surface, and described driving head outer wall middle part is provided with defining flange, and described retainer is a disc; Its circumference is provided with a plurality of bolts hole, and described retainer is provided with the mesopore that cooperates with the driving head cylindrical, and the retainer top end is a plurality of driving grooves of distribution evenly; Described pressure ring is a ring, and it compresses the surface that is connected with the transmission ball is the conical surface, and described retainer is connected with the transmission device fixing bolt; The hypomere of described adjusting screw can stretch in the mesopore of regulating block; The adjusting screw lower end compresses with the adjusting ball and is connected, and described butterfly spring group upper end is connected with regulating block, and butterfly spring group lower end is connected with pressure ring; Described transmission ball is arranged in the driving groove, and it can move in driving hole along driving groove.
2. a kind of torque overload protective gear according to claim 1 is characterized in that described transmission device is cap transmission or handwheel.
3. a kind of torque overload protective gear according to claim 1 is characterized in that the cross section of described driving groove is a circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910196404 CN102032285B (en) | 2009-09-25 | 2009-09-25 | Torque overload protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910196404 CN102032285B (en) | 2009-09-25 | 2009-09-25 | Torque overload protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102032285A CN102032285A (en) | 2011-04-27 |
| CN102032285B true CN102032285B (en) | 2012-10-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910196404 Active CN102032285B (en) | 2009-09-25 | 2009-09-25 | Torque overload protection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102032285B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895958B (en) * | 2015-04-17 | 2018-04-27 | 中国煤炭科工集团太原研究院有限公司 | A kind of adjustable limit square device of runback bit-type |
| CN105485198A (en) * | 2015-12-29 | 2016-04-13 | 武汉正通传动技术有限公司 | Push-pull force overload protective device |
| WO2018099982A1 (en) | 2016-11-30 | 2018-06-07 | Saint-Gobain Performance Plastics Rencol Limited | Adjustable torque assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3985213A (en) * | 1974-11-07 | 1976-10-12 | The Wellman Bibby Company Limited | Load release devices |
| DE2517910A1 (en) * | 1975-04-23 | 1976-11-04 | Ringspann Maurer Kg A | Overload safety clutch with slipping rollers - reduces roller wear by relieving spring load during torque overload |
| CN2156334Y (en) * | 1992-12-16 | 1994-02-16 | 周亚 | Tower mechanization verticle kiln safety clutch |
| CN201144976Y (en) * | 2007-08-23 | 2008-11-05 | 芜湖福达汽车零部件有限公司 | Overload protector |
| CN201507708U (en) * | 2009-09-25 | 2010-06-16 | 上海骐荣机械自控有限公司 | Torque overload protective device |
-
2009
- 2009-09-25 CN CN 200910196404 patent/CN102032285B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3985213A (en) * | 1974-11-07 | 1976-10-12 | The Wellman Bibby Company Limited | Load release devices |
| DE2517910A1 (en) * | 1975-04-23 | 1976-11-04 | Ringspann Maurer Kg A | Overload safety clutch with slipping rollers - reduces roller wear by relieving spring load during torque overload |
| CN2156334Y (en) * | 1992-12-16 | 1994-02-16 | 周亚 | Tower mechanization verticle kiln safety clutch |
| CN201144976Y (en) * | 2007-08-23 | 2008-11-05 | 芜湖福达汽车零部件有限公司 | Overload protector |
| CN201507708U (en) * | 2009-09-25 | 2010-06-16 | 上海骐荣机械自控有限公司 | Torque overload protective device |
Non-Patent Citations (2)
| Title |
|---|
| JP平3-117730A 1991.05.20 |
| JP特开2007-327572A 2007.12.20 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102032285A (en) | 2011-04-27 |
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| CP01 | Change in the name or title of a patent holder |
Address after: No. 815, de Garden Road, Nanxiang Town, Jiading District, Shanghai Co-patentee after: Shanghai Guanlong Valve Automation Co. Ltd. Patentee after: Guanlong Valve Machinery Co., Ltd., Shanghai Address before: No. 815, de Garden Road, Nanxiang Town, Jiading District, Shanghai Co-patentee before: Shanghai Qirong Machinery Automatic Control Co.,Ltd. Patentee before: Guanlong Valve Machinery Co., Ltd., Shanghai |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tak Road 201802 Shanghai city Jiading District Nanxiang Town, No. 815 Co-patentee after: SHANGHAI GUANLONG VALVE AUTOMATION Co.,Ltd. Patentee after: Shanghai Guanlong Valve Machinery Co., Ltd Address before: Tak Road 201802 Shanghai city Jiading District Nanxiang Town, No. 815 Co-patentee before: SHANGHAI GUANLONG VALVE AUTOMATION Co.,Ltd. Patentee before: Shanghai Guanlong Valve Machinery Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tak Road 201802 Shanghai city Jiading District Nanxiang Town, No. 815 Patentee after: Shanghai Guanlong valve energy saving equipment Co., Ltd Patentee after: SHANGHAI GUANLONG VALVE AUTOMATION Co.,Ltd. Address before: Tak Road 201802 Shanghai city Jiading District Nanxiang Town, No. 815 Patentee before: Shanghai Guanlong Valve Machinery Co., Ltd Patentee before: SHANGHAI GUANLONG VALVE AUTOMATION Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |