CN204573297U - A kind of valve high pulling torque single-stage worm gear - Google Patents
A kind of valve high pulling torque single-stage worm gear Download PDFInfo
- Publication number
- CN204573297U CN204573297U CN201520196089.3U CN201520196089U CN204573297U CN 204573297 U CN204573297 U CN 204573297U CN 201520196089 U CN201520196089 U CN 201520196089U CN 204573297 U CN204573297 U CN 204573297U
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- Prior art keywords
- worm gear
- output sleeve
- high pulling
- pulling torque
- type circle
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Abstract
The utility model discloses a kind of valve high pulling torque single-stage worm gear, by the worm gear of prior art in two sub-sections, the worm gear of prior art is divided into worm gear and output sleeve, worm gear is produced as standard piece, output sleeve is as forming a complete production network, and output sleeve can be processed into corresponding with valve rod size, when output sleeve changed by needs, output sleeve can be easy to remove replacing, and such structure solves prior art cannot change and manage troublesome problem.O type circle and the O type ring recess of a PTFE material is added at stroke limit place, angle, by O type circle through caging bolt, then locking nut applies pretightening force to packing ring, gasket compression O type circle, form seal pressure, produce sealing, avoid water and infiltrate from spacing, real achieving is hermetically sealed, increases worm gear working life.
Description
Technical field
The utility model relates to the gear driven for valve, particularly relates to a kind of structure of valve high pulling torque single-stage worm gear.
Background technique
Valve is mainly applied by high pulling torque single-stage worm-gear driven (hereinafter referred to as worm gear) and is controlled with the keying of valve, be divided into single-stage worm-gear driven, twin-stage worm-gear driven, multi-stage gear joins worm-gear driven, planetary pinion joins worm-gear driven etc., single-stage worm wheel head is generally applied on the valve of more small-bore rotation keying in 1/4 week, such as butterfly valve, ball valve etc.; Meanwhile, worm wheel head is also divided into angle stroke (stroke 90 degree) and many revolutions (360 deg rotating displaying), also not identical according to the valve types of structure different application.Traditional valve high pulling torque single-stage worm-gear driven is primarily of casing 22, case lid 23, end cap 24, worm screw 25, worm gear 26, direction board 27, case lid sealing gasket 28, O type circle 29, locking nut 30, caging bolt 31, direction board screw 32, thrust-bearing 33, worm screw gland 34, cover bolt 35, bolt of cover 36, worm screw gland bolt 37.
As shown in Figure 1, Figure 2, Figure 3 shows, it is one that worm gear and the valve shaft of the valve single-stage worm gear of prior art link part, worm gear in actual applications worm gear may join the valve of all size, the valve shaft size of often kind of specification is all not identical, the valve that particularly bore is larger, because the shaft size of often kind of valve specification is different, so same worm gear will be processed into a lot of size; The case lid sealing gasket 28 of quality of rubber materials is used to seal between casing 22 and case lid 23; The seal ring of leakage proof is not installed at caging bolt 31, locking nut 30 place; There is following problem in such structure:
1. the worm gear of the valve single-stage worm gear of prior art links part with valve shaft is one, every platform worm gear can only match the valve rod size of answering, if the valve that user wants worm gear to be used in another specification will use reducing sleeve, if use reducing sleeve so just to need to reinstall support, costly and inconvenient, and, if a kind of worm gear is used on a lot of valve, so also bring to management very inconvenient.
2. angle stroke limit does not have mounting sealing device, practical application shows, worm gear is applied in underground or is applied in outdoor, in rainwater sky, air water can enter in casing, worm wheel head inner member so also can be caused to get rusty, cause stuck, Caton phenomenon, be particularly applied on fire valve, in emergency circumstances, valve can be caused to open or to close.
Model utility content
The utility model technical issues that need to address there is provided a kind of valve high pulling torque single-stage worm gear, are intended to solve problem.By the worm gear of prior art in two sub-sections, the worm gear of prior art is divided into worm gear and output sleeve, worm gear is produced as standard piece, output sleeve is as forming a complete production network, output sleeve can be processed into corresponding with valve rod size, when output sleeve changed by needs, output sleeve 4 can be easy to remove replacing, and such structure solves prior art cannot change and manage troublesome problem.O type circle and the O type ring recess of a PTFE material is added at stroke limit place, angle, by O type circle through caging bolt, then locking nut applies pretightening force to packing ring, gasket compression O type circle, form seal pressure, produce sealing, avoid water and infiltrate from spacing, real achieving is hermetically sealed, increases worm gear working life.
The utility model object realizes being completed by following technological scheme: a kind of valve high pulling torque single-stage worm gear, comprise base, worm gear, output sleeve and worm drive parts, wherein, output sleeve and worm gear are non-integrative-structures, and output sleeve and worm gear are bolted.
A kind of valve high pulling torque single-stage worm gear, wherein, the O type that the is provided with ring recess of described output sleeve bottom, and O type circle is set in O type ring recess, the radial thickness of O type circle is greater than the radial depth of O type ring recess, in described worm gear, internal diameter is arranged the mesopore along whole worm gear circumference, the part that O type circle exceeds the radial depth of O type ring recess stretches into described worm gear mesopore circumferentially, forms compact siro spinning technology.
A kind of valve high pulling torque single-stage worm gear, wherein, described output sleeve is provided with one deck direction board, direction board is labeled with arrow.
A kind of valve high pulling torque single-stage worm gear, wherein, base is arranged the groove of a location worm gear.
The utility model has the advantages that:
1, worm gear is divided into two parts, output sleeve and worm gear, when output sleeve changed by needs, output sleeve can be easy to remove replacing, and such structure solves prior art cannot change and manage troublesome problem.
2, by increasing seal arrangement at caging bolt place, this can the infiltration of anti-sealing, prevents from getting rusty, and increases worm gear working life.
3, by being provided with one deck direction board on described output sleeve, direction board being labeled with arrow, person easy to use can understanding sense of rotation.
Accompanying drawing explanation
Fig. 1 is prior art valve high pulling torque single-stage worm-gear driven plan view;
Fig. 2 is that prior art valve high pulling torque single-stage worm-gear driven plan view is along A-A partial sectional view;
Fig. 3 is prior art valve high pulling torque single-stage worm-gear driven explosive view;
Fig. 4 is the utility model valve high pulling torque single-stage worm gear plan view;
Fig. 5 is that the utility model valve high pulling torque single-stage worm gear plan view is along B-B sectional view;
Fig. 6 is the explosive view of the utility model valve high pulling torque single-stage worm gear.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in the figure, a kind of valve high pulling torque single-stage worm gear, comprises base 5, worm gear 2, output sleeve 4 and worm drive parts, and wherein, output sleeve 4 and worm gear 2 are non-integrative-structures, and output sleeve 4 and worm gear 2 are bolted.
As shown in the figure, the O type that the is provided with ring recess of described output sleeve 4 bottom, and O type circle 17 is set in O type ring recess 18, the radial thickness of O type circle 17 is greater than the radial depth of O type ring recess 18, in described worm gear 2, internal diameter is arranged the mesopore along whole worm gear circumference, the part that O type circle 17 exceeds the radial depth of O type ring recess 18 stretches into described worm gear mesopore circumferentially, forms compact siro spinning technology.
As shown in the figure, described output sleeve 4 is provided with one deck direction board 7, direction board 7 is labeled with arrow.
As shown in the figure, base 5 is arranged the groove of a location worm gear 2.
Shown in Fig. 4, Fig. 5, Fig. 6, worm gear 2 is arranged on base 5, base 5 has the groove of a location worm gear 2, can accurately install worm gear 2; Bolt 10 is used to be arranged on casing 1 by base 5, casing 1 and base 5 surface of contact use the sealer of quality of rubber materials to seal, this sealing does not need to change seal fitting, as long as the sealer process by original during replacing is clean, recoat and spread new sealer, maintain easily and reduce maintenance cost; O type circle 17 is arranged in the O type ring recess 18 of output sleeve 4 bottom; O type circle 17 is arranged in the O type ring recess 18 on output sleeve 4 top; Output sleeve 4 is arranged in the mesopore of worm gear 2; In order to ensure seal pressure, O type circle and worm gear 2 mesopore and casing 1 mesopore had win amount, needed certain power press-in when installing output sleeve 4; Output sleeve 4 is arranged on worm gear 2 by high-strength bolt 9, can rotate when worm gear 2 bears the thrust from worm screw 3, because high-strength bolt 9 is arranged on worm gear 2, when worm gear 2 rotates, high-strength bolt 9 can drive output sleeve 4, and output sleeve 4 meeting Driving Torque is to being performed large valve shaft; Thrust-bearing 8 is arranged in the bearing hole on end cap 6 and worm screw gland respectively; End cap 6 is arranged on casing by bolt 19; Worm screw 3 pierces in the bearing 8 that is arranged on end cap 6; O type circle 16 is arranged in the O type ring recess of worm screw gland 16; Worm screw gland 15 and bearing 8 are through worm screw 2, worm screw gland 2 is fixed on casing 1 by bolt 20, all there is the limited shoulder of bearing 8 at worm screw 2 two ends, can to bearing 8 applied thrust when worm screw rotates 2, the thrust of transition can be passed to end cap 6 and worm gear gland 15 by bearing 8, can very effective protection worm gear 2; Direction board 7 is fixed on output sleeve by screw 21, when output sleeve 4 rotates, can drive direction board 7, direction board 7 has arrow, can indicate enable possition; The O type circle 11 of PTFE material is arranged in the O type ring recess of casing 1 tail end, O type circle is through caging bolt 14, then locking nut 13 applies pretightening force to packing ring 12, packing ring 12 compresses O type circle 11, form seal pressure, produce sealing, avoid water and infiltrate from spacing, real achieving is hermetically sealed, increases worm gear working life
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any reference character in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to mode of execution, but not each mode of execution only comprises an independently technological scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technological scheme in each embodiment also through appropriately combined, can form other mode of executions that it will be appreciated by those skilled in the art that.
Claims (4)
1. a valve high pulling torque single-stage worm gear, comprises base, worm gear, output sleeve and worm drive parts, it is characterized in that: output sleeve and worm gear are non-integrative-structures, and output sleeve and worm gear are bolted.
2. a kind of valve high pulling torque single-stage worm gear according to claim 1, it is characterized in that, the O type that the is provided with ring recess of described output sleeve bottom, and O type circle is set in O type ring recess, the radial thickness of O type circle is greater than the radial depth of O type ring recess, in described worm gear, internal diameter is arranged the mesopore along whole worm gear circumference, the part that O type circle exceeds the radial depth of O type ring recess stretches into described worm gear mesopore circumferentially, forms compact siro spinning technology.
3. a kind of valve high pulling torque single-stage worm gear according to claim 1, is characterized in that, described output sleeve is provided with one deck direction board, direction board is labeled with arrow.
4. a kind of valve high pulling torque single-stage worm gear according to claim 1, is characterized in that base there is the groove of a location worm gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520196089.3U CN204573297U (en) | 2015-04-02 | 2015-04-02 | A kind of valve high pulling torque single-stage worm gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520196089.3U CN204573297U (en) | 2015-04-02 | 2015-04-02 | A kind of valve high pulling torque single-stage worm gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204573297U true CN204573297U (en) | 2015-08-19 |
Family
ID=53865934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520196089.3U Expired - Fee Related CN204573297U (en) | 2015-04-02 | 2015-04-02 | A kind of valve high pulling torque single-stage worm gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204573297U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627983A (en) * | 2016-02-06 | 2016-06-01 | 南通斯密特森光电科技有限公司 | Clutch locking device of small theodolite bracket |
| CN106523776A (en) * | 2016-12-05 | 2017-03-22 | 常熟市虞菱机械有限责任公司 | Valve manual driving device with limiting switch |
| CN106704681A (en) * | 2016-12-05 | 2017-05-24 | 常熟市虞菱机械有限责任公司 | Dustproof and waterproof part rotating valve manual driving device |
-
2015
- 2015-04-02 CN CN201520196089.3U patent/CN204573297U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627983A (en) * | 2016-02-06 | 2016-06-01 | 南通斯密特森光电科技有限公司 | Clutch locking device of small theodolite bracket |
| CN105627983B (en) * | 2016-02-06 | 2018-06-15 | 南通斯密特森光电科技有限公司 | A kind of clutch locking device of small-sized theodolite bracket |
| CN106523776A (en) * | 2016-12-05 | 2017-03-22 | 常熟市虞菱机械有限责任公司 | Valve manual driving device with limiting switch |
| CN106704681A (en) * | 2016-12-05 | 2017-05-24 | 常熟市虞菱机械有限责任公司 | Dustproof and waterproof part rotating valve manual driving device |
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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: 20150819 Termination date: 20170402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |