CN201599363U - Stoppable worm reduction gear - Google Patents
Stoppable worm reduction gear Download PDFInfo
- Publication number
- CN201599363U CN201599363U CN2010203004853U CN201020300485U CN201599363U CN 201599363 U CN201599363 U CN 201599363U CN 2010203004853 U CN2010203004853 U CN 2010203004853U CN 201020300485 U CN201020300485 U CN 201020300485U CN 201599363 U CN201599363 U CN 201599363U
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- China
- Prior art keywords
- worm
- stoppable
- brake drum
- reduction box
- transmission shaft
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- 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.)
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Abstract
The utility model discloses a stoppable worm reduction gear, which has with simple structure, convenient use, good stop effect and high reliability so as to accurately position the worm wheel and the transmission shaft where the worm wheel is equipped. The utility model solves technical problems of complicated structure, high cost, poor stop effect and low reliability in prior art. The stoppable worm reduction gear includes a casing, a worm connected with a motor and the worm wheel arranged on the transmission shaft and engaged with the worm; a brake wheel in synchronous rotation with the worm wheel is arranged on the transmission shaft; and a stop bolt whose one end is connected with a drive device and the other end is abutted on the brake wheel is arranged on one side of the edge of the brake wheel.
Description
Technical field
The utility model relates to a kind of worm reduction box, relates in particular to a kind of worm reduction box of stoppable.
Background technique
Generally there is not special-purpose stop mechanism in the existing worm reduction box, it generally is to realize stop by the self-lock force between worm and gear, but owing to have certain clearance between worm gear and worm screw, and along with the prolongation of service time, wearing and tearing cause the gap of the two to be strengthened, and can't guarantee the reliability of stop thus.
Chinese patent " the special-purpose worm reduction box (CN2763239Y) of a kind of lifting " discloses a kind of worm reduction box, it comprises casing, be arranged on turbine and worm decelerator in the casing, be used to import the power input mechanism of power, also be provided with the ratchet arrestment mechanism in the casing, and the ratchet arrestment mechanism respectively with turbine and worm decelerator in worm shaft be connected with power input mechanism.This device is to realize braking function by ratchet, and complex structure simultaneously owing to the shortcoming that the ratchet existence is impacted and noise is big, precision is low, also can't be guaranteed the reliability of stop thus, is not suitable for needing accurately to locate on the equipment of stop.
Summary of the invention
The utility model has mainly provided a kind of simple in structure, easy to use, stopping effect is good, the reliability height, thereby the worm reduction box of the pinpoint stoppable of transmission shaft at worm gear and worm gear place the apparatus structure complexity, cost height, stopping effect difference and the low technical problem of reliability that exist in the prior art can have been solved.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of worm reduction box of stoppable, comprise casing and and be located at the worm screw that links to each other with motor in the casing and be located on the transmission shaft worm gear with worm meshing, on described transmission shaft, be provided with the Brake drum that rotates synchronously with worm gear, be provided with an end in a side of described Brake drum outer rim and link to each other with drive unit, the other end can be connected to the stop bolt on the Brake drum.By on transmission shaft, being provided with and the worm gear Brake drum of rotation synchronously, and stop the rotation of Brake drum, thereby the transmission shaft stop at realization worm gear and worm gear place is simple in structure by the stop bolt; Stop bolt one end links to each other with drive unit, and drives the stop bolt by drive unit and be connected to and realize stop on the Brake drum, and is easy to use; Because Brake drum and worm gear rotate on transmission shaft synchronously, guarantee promptly after the Brake drum stop that worm gear and transmission shaft relative position are constant, stopping effect is good, and the reliability height makes the transmission shaft at worm gear and worm gear place be able to accurate location.
As preferably, on described stop bolt, be provided with curve slope, the outer edge surface interworking of described curve slope and Brake drum.By curve slope and Brake drum outer edge surface interworking are set on the stop bolt, and be connected on the Brake drum outer edge surface by curve slope, increased the area of contact of stop bolt and Brake drum, the friction of the two makes the relative stop bolt of Brake drum invariant position, thereby guarantee worm gear stop, especially stoped the Brake drum reverse rotation, simple in structure.
As more preferably, on the outer edge surface of described Brake drum, be provided with the cambered surface scrobicular ring, described cambered surface scrobicular ring surface and curve slope interworking.By the cambered surface scrobicular ring of setting on the outer edge surface of Brake drum with the curve slope interworking, can increase the area of contact of stop bolt and Brake drum, thereby strengthen stop frictional force, stopping effect is good, stop reliability height.
As preferably, described Brake drum is that integral type is connected with worm gear.Integral structure can prevent effectively that Brake drum and worm gear break away from the back and produce the stop inefficacy, improves the stop reliability.
As preferably, described drive unit is a cylinder, and the piston on the described cylinder links to each other with the stop bolt by connecting rod.By air cylinder driven stop bolt, simple in structure, it is reliably convenient to use, and cost is low.
As preferably, described drive unit is an electromagnet, and the armature on the described electromagnet links to each other with the stop bolt by draw-bar.By solenoid actuated stop bolt, simple in structure, safe and reliable.
Therefore, the worm reduction box of a kind of stoppable of the present utility model has following advantage: by the Brake drum that rotates synchronously with worm gear is set on transmission shaft, and by the rotation realization worm gear of stop bolt prevention Brake drum and the transmission shaft stop at worm gear place, simple in structure, stopping effect good, reliability is high, thereby the transmission shaft at worm gear and worm gear place can accurately be located; By the cambered surface scrobicular ring of curve slope interworking on setting and stop bolt on the outer edge surface of Brake drum, can increase the area of contact of stop bolt and Brake drum, improve stopping effect, guarantee the stop reliability; Drive the stop bolt by cylinder and move up and down, simple in structure, it is reliably convenient to use, and cost is low.
Description of drawings:
Fig. 1 is the structure sectional view of first kind of mode of execution of the utility model.
Fig. 2 is the fragmentary, perspective view of Fig. 1.
Embodiment:
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1:
As shown in Figure 1, the worm reduction box of a kind of stoppable of the present utility model, comprise intermeshing worm gear 2 and worm screw 7 in casing 6 and the casing 6, between two walls of casing 6, a transmission shaft 1 is housed by bearing, worm gear 2 is contained on the transmission shaft 1 by the key connecting sleeve, as shown in Figure 2, the upper end of worm screw 7 links to each other with the motor output shaft that is fixed on casing 6 top face by shaft joint, be connected a Brake drum 3 with worm gear 2 integral types, on the outer edge surface of Brake drum 3, have a cambered surface scrobicular ring 31 with Brake drum 3 is coaxial, casing 6 top face in Brake drum 3 left sides are fixed with a cylinder 5, cylinder 5 is by the connecting rod 53 stop bolt 4 that is being threaded downwards, on stop bolt 4, have a curve slope 41 with cambered surface scrobicular ring 31 interworkings, cylinder 5 drives stop bolts 4 downwards the time, and the curve slope 41 on the stop bolt 4 can be connected in the cambered surface scrobicular ring 31 on the Brake drum 3 and make Brake drum 3 stop.
Embodiment 2:
Longitudinally be fixed with an electromagnet on casing 6 end faces of Brake drum 3 outer rims, the armature on the electromagnet is fixedly linked by the upper end portion of draw-bar and stop bolt 4, and described remaining part is identical with embodiment 1.
Specific embodiment described herein only is that design of the present utility model is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (7)
1. the worm reduction box of a stoppable, comprise casing and and be located at the worm screw that links to each other with motor in the casing and be located on the transmission shaft worm gear with worm meshing, it is characterized in that: on described transmission shaft (1), be provided with the Brake drum (3) that rotates synchronously with worm gear (2), be provided with an end in a side of described Brake drum (3) outer rim and link to each other with drive unit, the other end can be connected to the stop bolt (4) on the Brake drum (3).
2. the worm reduction box of a kind of stoppable according to claim 1 is characterized in that: be provided with curve slope (41) on described stop bolt (4), the outer edge surface interworking of described curve slope (41) and Brake drum (3).
3. the worm reduction box of a kind of stoppable according to claim 2 is characterized in that: be provided with cambered surface scrobicular ring (31) on the outer edge surface of described Brake drum (3), described cambered surface scrobicular ring (31) surface and curve slope (41) interworking.
4. the worm reduction box of a kind of stoppable according to claim 1 and 2, it is characterized in that: described Brake drum (3) is connected for integral type with worm gear (2).
5. the worm reduction box of a kind of stoppable according to claim 3, it is characterized in that: described Brake drum (3) is connected for integral type with worm gear (2).
6. the worm reduction box of a kind of stoppable according to claim 1, it is characterized in that: described drive unit is cylinder (5), the piston on the described cylinder (5) links to each other with stop bolt (4) by connecting rod.
7. the worm reduction box of a kind of stoppable according to claim 1, it is characterized in that: described drive unit is an electromagnet, the armature on the described electromagnet links to each other with stop bolt (4) by draw-bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203004853U CN201599363U (en) | 2010-01-12 | 2010-01-12 | Stoppable worm reduction gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203004853U CN201599363U (en) | 2010-01-12 | 2010-01-12 | Stoppable worm reduction gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201599363U true CN201599363U (en) | 2010-10-06 |
Family
ID=42810418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010203004853U Expired - Fee Related CN201599363U (en) | 2010-01-12 | 2010-01-12 | Stoppable worm reduction gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201599363U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234031A (en) * | 2013-05-13 | 2013-08-07 | 江阴凯迈机械有限公司 | Brake type gyration driving device |
| CN103801983A (en) * | 2013-12-20 | 2014-05-21 | 义乌市慧海自动化工程有限公司 | Rotating-shaft hydraulic locking system having detection feedback function |
| CN110094568A (en) * | 2019-06-18 | 2019-08-06 | 诸暨市亿霸电子阀门有限公司 | A kind of motor Worm gear and worm transmission mechanism on four-way reversing valve |
| CN112937434A (en) * | 2019-12-10 | 2021-06-11 | 鸿富锦精密电子(天津)有限公司 | Tripod device |
-
2010
- 2010-01-12 CN CN2010203004853U patent/CN201599363U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234031A (en) * | 2013-05-13 | 2013-08-07 | 江阴凯迈机械有限公司 | Brake type gyration driving device |
| CN103234031B (en) * | 2013-05-13 | 2015-08-26 | 江阴凯迈机械有限公司 | Brake type device for revolving and driving |
| CN103801983A (en) * | 2013-12-20 | 2014-05-21 | 义乌市慧海自动化工程有限公司 | Rotating-shaft hydraulic locking system having detection feedback function |
| CN103801983B (en) * | 2013-12-20 | 2016-06-08 | 陈小青 | Rotating shaft feedback detection hydraulic locking system |
| CN110094568A (en) * | 2019-06-18 | 2019-08-06 | 诸暨市亿霸电子阀门有限公司 | A kind of motor Worm gear and worm transmission mechanism on four-way reversing valve |
| CN110094568B (en) * | 2019-06-18 | 2024-02-02 | 诸暨市亿霸电子阀门有限公司 | Motor worm gear type transmission mechanism on four-way reversing valve |
| CN112937434A (en) * | 2019-12-10 | 2021-06-11 | 鸿富锦精密电子(天津)有限公司 | Tripod device |
| US11455918B2 (en) | 2019-12-10 | 2022-09-27 | Fulian Precision Electronics (Tianjin) Co., Ltd. | Warning triangle structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20130112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |