CN102927205A - Torsion-adjustable worm and gear speed reducer - Google Patents
Torsion-adjustable worm and gear speed reducer Download PDFInfo
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- CN102927205A CN102927205A CN2012104274798A CN201210427479A CN102927205A CN 102927205 A CN102927205 A CN 102927205A CN 2012104274798 A CN2012104274798 A CN 2012104274798A CN 201210427479 A CN201210427479 A CN 201210427479A CN 102927205 A CN102927205 A CN 102927205A
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- speed reducer
- worm screw
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 48
- 210000004907 gland Anatomy 0.000 claims description 10
- 238000000819 phase cycle Methods 0.000 claims description 7
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 4
- 229920001195 polyisoprene Polymers 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention relates to a torsion-adjustable worm and gear speed reducer which comprises a speed reducer casing, a worm wheel and worm. One end of the worm is provided with a torsion adjusting device, and the torsion adjusting device comprises a torsion adjusting nut, a screw, an elastic component, a lever, a hinge and a micro switch. One end of the lever is connected with a hinge seat arranged on the speed reducer casing through the hinge, the other end of the lever is connected with the lever through the screw, and the screw is provided with the elastic component and the torsion adjusting nut. The end face of the worm is provided with a spherical surface cap, the spherical surface cap is connected with the worm through a bearing, the lever enables the elastic component to be tightened through the torsion adjusting nut, and the side of the lever is in contact connection with the spherical surface cap. The worm drives the lever to touch the micro switch for movement when performing axial movement. Output torsion is adjusted through the torsion adjusting nut and a cone-shaped spring. In the using process, the torsion-adjustable worm and gear speed reducer can not only avoid axial movement of the worm in high-speed rotation, but also protect the worm wheel and the worm, and damage to a motor and the speed reducer caused by a too large load is avoided.
Description
Technical field
The present invention relates to worm-gear speed reducer, especially a kind of torque protection device that is provided with, and speed reducer that can the regulation output torque magnitude.
Background technique
Existing worm-gear speed reducer is not generally all installed the torque force overload protective gear, when the load of speed reducer surpasses its maximum outputting torsion, might damage speed reducer if can not just in time shut down.At present; the torque force overload protective gear that occurs on the market; claim again torque force limiting device, safety clutch, torsion coupling; often be installed between powerdriven master, the passive side; when overload fault occurs (moment of torsion surpasses setting value); torque limiter just can produce separation, thereby effectively protects driving device and load, and common apparatus is the friction type torque limiter and ball type torque limiter.
Above-mentioned torque force limiting device mainly is the working principle of utilizing free wheel device, is applied to motor and speed reducer, can play simultaneously the effect of protection motor and speed reducer.But the structure relative complex of this torque force limiting device, and common inconvenient adjusting of the setting value of torque protection often can not initiatively disconnect the power supply of driving device during work, sometimes not only waste electric energy, and still might damage machinery equipment.
Summary of the invention
Deficiency for above existing reducer protecting device; the purpose of this invention is to provide a kind of torque protection device for worm-gear speed reducer; this device is convenient to regulate the size of speed reducer output torque, can prevent the axial float of worm screw simultaneously, and can in time disconnect the power supply of driving device.
The objective of the invention is by realizing by the following technical solutions:
The adjustable worm-gear speed reducer of torsion, comprise reducer shell, worm gear and worm screw, when described worm gear and worm meshing, worm screw relatively worm gear carries out axial float, the end of described worm screw is made as power intake, and the other end of worm screw is provided with torsion controlling device and sensitive switch;
Described torsion controlling device comprises torsion adjusting nut, gland, bearing, elastic member, the end of described worm screw is provided with the screw thread suitable with the torsion adjusting nut, described elastic member is set on the worm screw between torsion adjusting nut and the reducer shell, and the torsion adjusting nut is tightened elastic member by bearing and gland;
Described sensitive switch is connected with worm screw, can touch described sensitive switch during the worm screw axial float and make it produce action.
As the preferred technical solution of the present invention, described torsion controlling device also comprises screw rod, lever and hinge, one end of described lever is connected with hinge base on being located at reducer shell by hinge and fixes, the other end of lever is connected with hinge base by screw rod, described screw rod is provided with elastic member and torsion adjusting nut, and elastic member is located between torsion adjusting nut and the lever;
The end face of described worm screw is provided with described gland, and gland is made as the sphere cap shaped, and the sphere cap is connected with worm screw by described bearing and fixes, and described torsion adjusting nut is tightened elastic member, makes the side of lever keep being connected with described sphere cap contact;
Described sensitive switch is located between lever and the hinge base, drives lever during described worm screw axial float and touches described sensitive switch, and make sensitive switch produce action.
As the preferred technical solution of the present invention, described elastic member comprises cone shaped spring, helical spring or elastic caoutchouc sleeve.
As the preferred technical solution of the present invention, the distance of described worm screw axial float is 0.5 millimeter to 30 millimeters.
As the preferred technical solution of the present invention, described speed reducer also is provided with control gear and phase sequence relay, and described sensitive switch is connected with the control gear circuit, and control gear is connected with braking maneuver power apparatus circuit by phase sequence relay.
As the preferred technical solution of the present invention, described control gear is connected with sound and light alarm circuit.
The invention has the beneficial effects as follows: with respect to prior art, the present invention installs the torsion controlling device at the worm screw external part of worm-gear speed reducer, realizes the size of adjusting worm gear outputting torsion by torsion adjusting nut and cone shaped spring; In the using process; the torque protection device can be according to the size of load; the convenient adjusting and setting torque protection value; axial float in the time of can not only avoiding the worm screw high speed rotating; can also in time disconnect the power supply of driving device; effectively protection motor and worm-gear speed reducer are avoided because of the excessive damage motor and speed reducer of load.Structure of the present invention is relatively simple, convenient operation and control, safe and reliable.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing and specific embodiment:
Fig. 1 is structural representation of the present invention.
Among the figure: 1, reducer shell, 2, the torsion adjusting nut, 3, cone shaped spring, 4, screw rod, 5, sensitive switch, 6, lever, 7, the sphere cap, 8, hinge, 9, bearing, 10, worm screw, 11, hinge base.
Embodiment
Embodiment one
The adjustable worm-gear speed reducer of torsion, comprise reducer shell, worm gear and worm screw, when worm gear and worm meshing, worm screw relatively worm gear carries out axial float, the end of worm screw is made as power intake, and the other end of worm screw is provided with torsion controlling device and sensitive switch.Described torsion controlling device comprises torsion adjusting nut, gland, bearing, elastic member, the end of worm screw is provided with the screw thread suitable with the torsion adjusting nut, described elastic member is set on the worm screw between torsion adjusting nut and the reducer shell, and the torsion adjusting nut is tightened elastic member by bearing and gland.Described sensitive switch is connected with worm screw, can touch sensitive switch during the worm screw axial float and make it produce action.The described elastic member of present embodiment comprises cone shaped spring, helical spring or elastic caoutchouc sleeve.This embodiment is mainly used in the small-power worm-gear speed reducer of the active force less of axial float.
Embodiment two
As shown in Figure 1, the adjustable worm-gear speed reducer of torsion comprises reducer shell 1, worm gear and worm screw 10, and when worm gear and worm screw 10 engagement, worm screw relatively worm gear carries out axial float; The end of worm screw is made as power intake, the other end of worm screw is provided with the torsion controlling device, this device comprises torsion adjusting nut 2, screw rod 4, elastic member, lever 6, hinge 8 and sensitive switch 5, one end of described lever 6 is connected with hinge base 11 on being located at reducer shell 1 by hinge 8 and fixes, the other end of lever 6 is connected with hinge base 11 by screw rod 4, screw rod 4 is provided with elastic member and torsion adjusting nut 2, and elastic member is located between torsion adjusting nut 2 and the lever 6.
The end face of worm screw is provided with sphere cap 7, and sphere cap 7 is connected with worm screw by bearing 9 and fixes, and described lever 6 is tightened elastic member by torsion adjusting nut 1, makes the side of lever 6 keep being connected with the contact of sphere cap 7; Described sensitive switch 5 is located between lever 6 and the hinge base 11, drives lever 6 during worm screw 10 axial float and touches sensitive switch 5, and make sensitive switch 5 produce action.
In the present embodiment, the distance of described worm screw axial float is 0.5 millimeter to 30 millimeters.Described elastic member comprises cone shaped spring 3, helical spring or elastic caoutchouc sleeve.As better mode of execution, adopt cone shaped spring can be convenient to regulate and set the torque protection value of torsion controlling device.Present embodiment is mainly used in the relatively large high-power worm-gear speed reducer of active force of axial float.
Worm-gear speed reducer of the present invention also is provided with control gear and phase sequence relay, and described sensitive switch 5 is connected with the control gear circuit, and control gear is connected with braking maneuver power apparatus circuit by phase sequence relay, and control gear also is connected with sound and light alarm circuit.The Main Function of phase sequence relay is to avoid electric motor starting after the motor wiring is opposite, thus protection worm-gear speed reducer and torsion controlling device.
In the using process of the present invention, the axial float in the time of can not only avoiding worm screw 10 high speed rotating can also in time disconnect the power supply of driving device, effectively protects motor and worm-gear speed reducer, avoids because of the excessive damage motor and speed reducer of load, and is safe and reliable.
Claims (6)
1. adjustable worm-gear speed reducer of torsion, comprise reducer shell, worm gear and worm screw, when described worm gear and worm meshing, worm screw relatively worm gear carries out axial float, it is characterized in that: the end of described worm screw is made as power intake, and the other end of worm screw is provided with torsion controlling device and sensitive switch;
Described torsion controlling device comprises torsion adjusting nut, gland, bearing, elastic member, the end of described worm screw is provided with the screw thread suitable with the torsion adjusting nut, described elastic member is set on the worm screw between torsion adjusting nut and the reducer shell, and the torsion adjusting nut is tightened elastic member by bearing and gland;
Described sensitive switch is connected with worm screw, can touch described sensitive switch during the worm screw axial float and make it produce action.
2. the adjustable worm-gear speed reducer of torsion according to claim 1, it is characterized in that: described torsion controlling device also comprises screw rod, lever and hinge, one end of described lever is connected with hinge base on being located at reducer shell by hinge and fixes, the other end of lever is connected with hinge base by screw rod, described screw rod is provided with elastic member and torsion adjusting nut, and elastic member is located between torsion adjusting nut and the lever;
The end face of described worm screw is provided with described gland, and gland is made as the sphere cap shaped, and the sphere cap is connected with worm screw by described bearing and fixes, and described torsion adjusting nut is tightened elastic member, makes the side of lever keep being connected with described sphere cap contact;
Described sensitive switch is located between lever and the hinge base, drives lever during described worm screw axial float and touches described sensitive switch, and make sensitive switch produce action.
3. the adjustable worm-gear speed reducer of torsion according to claim 1 and 2, it is characterized in that: described elastic member comprises cone shaped spring, helical spring or elastic caoutchouc sleeve.
4. the adjustable worm-gear speed reducer of torsion according to claim 1 and 2, it is characterized in that: the distance of described worm screw axial float is 0.5 millimeter to 30 millimeters.
5. the adjustable worm-gear speed reducer of torsion according to claim 1 and 2, it is characterized in that: described speed reducer also is provided with control gear and phase sequence relay, described sensitive switch is connected with the control gear circuit, and control gear is connected with braking maneuver power apparatus circuit by phase sequence relay.
6. the adjustable worm-gear speed reducer of torsion according to claim 5, it is characterized in that: described control gear is connected with sound and light alarm circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210427479.8A CN102927205B (en) | 2012-10-31 | 2012-10-31 | Torsion is adjustable worm-gear speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210427479.8A CN102927205B (en) | 2012-10-31 | 2012-10-31 | Torsion is adjustable worm-gear speed reducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102927205A true CN102927205A (en) | 2013-02-13 |
| CN102927205B CN102927205B (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210427479.8A Expired - Fee Related CN102927205B (en) | 2012-10-31 | 2012-10-31 | Torsion is adjustable worm-gear speed reducer |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB380744A (en) * | 1931-11-14 | 1932-09-22 | Hermann Schoening | Improvements in or relating to worm gearing having breaking-pieces for relieving strain |
| US3339426A (en) * | 1964-04-25 | 1967-09-05 | Siebeck Metallwerk G M B H | Valve actuator |
| DE3412338A1 (en) * | 1983-09-21 | 1985-03-28 | Rhein-Getriebe Gmbh, 4005 Meerbusch | Worm gearing |
| US5059879A (en) * | 1988-06-28 | 1991-10-22 | Nippon Gear Co., Ltd. | Electric actuator control apparatus |
| CN2343419Y (en) * | 1998-06-30 | 1999-10-13 | 江西太昌不锈钢制品有限公司 | Clutch-type worm-wheel geartrain |
| US6062106A (en) * | 1998-04-27 | 2000-05-16 | Jackson; David C. | Side load sensor |
| CN2849335Y (en) * | 2004-12-31 | 2006-12-20 | 吴忠仪表股份有限公司 | Intelligent moment protector |
| US20080098835A1 (en) * | 2006-10-30 | 2008-05-01 | Hiwin Mikrosystem Corp. | Torque controlling device for linear actuator |
| CN202251785U (en) * | 2011-10-29 | 2012-05-30 | 重庆川仪自动化股份有限公司 | Torque control device |
-
2012
- 2012-10-31 CN CN201210427479.8A patent/CN102927205B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB380744A (en) * | 1931-11-14 | 1932-09-22 | Hermann Schoening | Improvements in or relating to worm gearing having breaking-pieces for relieving strain |
| US3339426A (en) * | 1964-04-25 | 1967-09-05 | Siebeck Metallwerk G M B H | Valve actuator |
| DE3412338A1 (en) * | 1983-09-21 | 1985-03-28 | Rhein-Getriebe Gmbh, 4005 Meerbusch | Worm gearing |
| US5059879A (en) * | 1988-06-28 | 1991-10-22 | Nippon Gear Co., Ltd. | Electric actuator control apparatus |
| US6062106A (en) * | 1998-04-27 | 2000-05-16 | Jackson; David C. | Side load sensor |
| CN2343419Y (en) * | 1998-06-30 | 1999-10-13 | 江西太昌不锈钢制品有限公司 | Clutch-type worm-wheel geartrain |
| CN2849335Y (en) * | 2004-12-31 | 2006-12-20 | 吴忠仪表股份有限公司 | Intelligent moment protector |
| US20080098835A1 (en) * | 2006-10-30 | 2008-05-01 | Hiwin Mikrosystem Corp. | Torque controlling device for linear actuator |
| CN202251785U (en) * | 2011-10-29 | 2012-05-30 | 重庆川仪自动化股份有限公司 | Torque control device |
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| CN102927205B (en) | 2016-01-06 |
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Effective date of registration: 20161012 Address after: Jiangyan District Zhang Dian Zhen duo Cun River in Jiangsu Province in 225500 Taizhou City three Group No. 19 Patentee after: Qian Yufeng Address before: 225500 Jiangyan City, Jiangsu Province, East China Hardware City H27-108 Patentee before: Jiangyan Zhongxin Machine Tool Equipment Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20161031 |
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| CF01 | Termination of patent right due to non-payment of annual fee |