CN105351608A - Gear device - Google Patents
Gear device Download PDFInfo
- Publication number
- CN105351608A CN105351608A CN201510778604.3A CN201510778604A CN105351608A CN 105351608 A CN105351608 A CN 105351608A CN 201510778604 A CN201510778604 A CN 201510778604A CN 105351608 A CN105351608 A CN 105351608A
- Authority
- CN
- China
- Prior art keywords
- lower shell
- shell body
- cavity
- perforation
- outerplanar
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses a gear device. The gear device comprises a hand wheel, a gearbox and a worm shaft. The gearbox comprises an upper shell and a lower shell. A first cavity and a second cavity are formed in the lower shell, and a turbine is arranged in the first cavity. A valve shaft is arranged at the bottom of the lower shell, the upper end of the valve shaft stretches into the first cavity and is coaxially connected with the turbine, and the lower end of the valve shaft stretches out of the lower shell. It is guaranteed that a fixing rod is not broken, and the worm shaft is effectively prevented from being disengaged from the gearbox. Synchronous rotation of a worm and the worm shaft is guaranteed, and reliability and safety are improved.
Description
Technical field
The present invention relates to a kind of gear, particularly relate to a kind of operated gear device.
Background technique
In industrial applicability, the rotation of general operated gear device is to control the unlatching of various valve, closedown and balanced action, pipe-line system is carried out to control and the adjustment of fluid, and operated gear device group will comprise handwheel and gear-box, wherein, handwheel is coupling and is fixed on one end of worm shaft, the other end of worm shaft is through the worm screw in gear, worm screw extremely worm shaft links together through radial fixing pin, worm meshing turbine is to form reducing gear, make operator open and close valve in a rotating manner, and provide operator to distinguish the position that valve is opened via indicator.When operator rotates the unlatching between handwheel and control valve or closes, fixing pin need bear drive worm screw rotate produce torsional shear, and bear worm screw and worm shaft simultaneously be connected and fixed function, therefore, fixing pin ratio is easier to fracture and loosens, and after fixing pin ruptures, and can not make worm shaft and dropping of handwheel and cause the unexpected injury of operator, and operator can be made cannot to use gearbox operation valve, cause and control extremely.
Therefore those skilled in the art endeavour and a kind of operated gear device that effectively can improve Security of exploitation.
Summary of the invention
Because the above-mentioned defect of prior art, technical problem to be solved by this invention is to provide a kind of operated gear device that effectively can improve Security.
For achieving the above object, the invention provides a kind of gearing, comprise handwheel, gear-box and worm shaft, gear-box comprises upper shell and lower shell body, is provided with the first cavity and the second cavity, is provided with turbine in the first cavity in lower shell body; The bottom of lower shell body is provided with valve shaft, and the upper end of valve shaft extends in the first cavity, and is coaxially connected with turbine, and lower shell body is extended in the lower end of valve shaft;
The side of lower shell body offers the first perforation and the second perforation, and the first perforation is horizontally through lower shell body, and the second perforation is longitudinally located in the top of lower shell body, and is positioned at one end of the first perforation;
Second cavity is provided with the worm screw with axis hole, worm screw is arranged in the second cavity, and worm screw engages with turbine, and worm screw inwall is provided with the second limited part, second limited part comprises the first inner plane and the second inner plane, and the axis parallel of the first inner plane and the second inner plane and worm screw is symmetrical;
Worm shaft comprises the first diameter portion and second diameter portion, one end of first diameter portion is connected with handwheel, the circumferential outer surface of the other end of the first diameter portion is provided with the first limited part, first limited part comprises the first outerplanar and the second outerplanar, the axle center of the first outerplanar and the second outerplanar symmetry and the first diameter portion; Width between first outerplanar and the second outerplanar is less than the width between the first inner plane and the second inner plane; Circular track is provided with along on the excircle of second diameter portion,
Worm shaft is located in the first perforation, and worm set is located on worm shaft; Be provided with position-limited lever in second perforation, one end of position-limited lever is positioned at circular track.
Conveniently to replacing and the maintenance of component, the upper end of lower shell body is provided with several threaded perforations, upper shell is provided with the screw corresponding with the threaded perforations of lower shell body, and lower shell body and upper shell are removably connected by screw and threaded perforations.
The invention has the beneficial effects as follows:
1) ensure that fixing rod can not rupture;
2) worm shaft is effectively prevented to come off from gear-box;
3) ensure that worm screw and worm shaft synchronous axial system;
4) improve reliability and Security.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is the concrete decomposition texture schematic diagram of the present invention one.
Fig. 3 is cross-sectional view of the present invention.
Embodiment
Below in conjunction with drawings and Examples
The invention will be further described:
As shown in Figure 1-Figure 3, a kind of gearing, comprises handwheel 2, gear-box 3 and worm shaft 7, and gear-box 3 comprises upper shell 5 and lower shell body 4, is provided with in the first cavity 41 and the second cavity 42, first cavity 41 and is provided with turbine 90 in lower shell body 4; The bottom of lower shell body 4 is provided with valve shaft 9, and the upper end of valve shaft 9 extends in the first cavity 41, and is coaxially connected with turbine 90, and lower shell body 4 is extended in the lower end of valve shaft 9;
The side of lower shell body 4 offers the first perforation 43 and the second perforation 44, first perforation 43 is horizontally through lower shell body 4, and the second perforation 44 is longitudinally located in the top of lower shell body 4, and is positioned at one end of the first perforation 43;
Second cavity 42 is provided with the worm screw 6 with axis hole, worm screw 6 is arranged in the second cavity 42, worm screw 6 engages with turbine 90, worm screw 6 inwall is provided with the second limited part 61, it is symmetrical with the axis parallel of worm screw 6 that second limited part 61 comprises the first inner plane 62 and the second inner plane 63, first inner plane 62 and the second inner plane 63;
Worm shaft 7 comprises the first diameter portion 71 and second diameter portion 72, and this first diameter portion 71 and second diameter portion 72 are formed in one structure, thus improve the fastness of worm shaft 7 while facilitating production and processing.One end of first diameter portion 71 is connected with handwheel 2, the circumferential outer surface of the other end of the first diameter portion 71 is provided with the first limited part 711, first limited part 711 comprises the first outerplanar 712 and the second outerplanar, the axle center of the first outerplanar 712 and the second outerplanar symmetry and the first diameter portion 71; Width between first outerplanar 712 and the second outerplanar is less than the width between the first inner plane 62 and the second inner plane 63; Circular track 73 is provided with along on the excircle of second diameter portion 72,
Worm shaft 7 is located in the first perforation 43, and worm screw 6 is set on worm shaft 7; Be provided with position-limited lever 8 in second perforation 44, one end of position-limited lever 8 is positioned at circular track 73.
The upper end of lower shell body 4 is provided with several threaded perforations, and upper shell 5 is provided with the screw corresponding with the threaded perforations of lower shell body 4, and lower shell body 4 and upper shell 5 are removably connected by screw and threaded perforations.After upper shell 5 and lower shell body 4 are threaded connection, just can dismantle housing, thus reach the maintenance to inner components.Handwheel 2 is fixed on one end of worm shaft 7, the other end of worm shaft 7 is through after the first perforation 43 on gear-box 3, again through worm screw 6, worm screw 6 is connected with turbine 90, and turbine 90 connects valve shaft, and position-limited lever 8 penetrates circular track 73 inner position worm shaft 7, when rotation hand wheel 2, worm shaft 7 can be allowed firmly to be connected with gear-box 3, to prevent worm shaft 7 separating tooth roller box 3, thus improve the Security of product.In in the present embodiment, each component are arranged in the first cavity 41 and the second cavity 42, effectively can not only improve the intensity of whole device, and for convenience detach and maintenance.
This is with in novel, second limited part 61 and the first limited part 711 make worm shaft 7 form axial connection with worm screw 6, therefore, not only can guarantee worm shaft 7 and worm screw 6 synchronous axial system, and worm shaft 7 can be born when rotating, and the torsional shear produced between worm screw 6, has solved the problem that position-limited lever 8 easily ruptures, thus the effective reliability extremely safe performance improving product.
Owing to being provided with position-limited lever 8 in this device, just can at rotation hand wheel 2, position-limited lever 8 need are made to bear single pulling force, and while bearing pulling force, by strength transmission to gear-box 3, there is gear-box 3 to bear this pulling force, to guarantee that position-limited lever 8 can not because twisting off or come off when worm shaft 7 rotarily driving worm screw 6.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technician in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment.
Claims (2)
1. a gearing, comprise handwheel (2), gear-box (3) and worm shaft (7), it is characterized in that: described gear-box (3) comprises upper shell (5) and lower shell body (4), be provided with the first cavity (41) and the second cavity (42) in described lower shell body (4), in described first cavity (41), be provided with turbine (90); The bottom of described lower shell body (4) is provided with valve shaft (9), the upper end of described valve shaft (9) extends in described first cavity (41), and be coaxially connected with described turbine (90), described lower shell body (4) is extended in the lower end of described valve shaft (9);
The side of described lower shell body (4) offers the first perforation (43) and the second perforation (44), described first perforation (43) is horizontally through described lower shell body (4), described second perforation (44) is longitudinally located in the top of described lower shell body (4), and is positioned at one end of described first perforation (43);
Described second cavity (42) is provided with the worm screw (6) with axis hole, described worm screw (6) is arranged in described second cavity (42), described worm screw (6) engages with described turbine (90), described worm screw (6) inwall is provided with the second limited part (61), described second limited part (61) comprises the first inner plane (62) and the second inner plane (63), and the axis parallel of described first inner plane (62) and described second inner plane (63) and described worm screw (6) is symmetrical;
Described worm shaft (7) comprises the first diameter portion (71) and second diameter portion (72), one end of described first diameter portion (71) is connected with described handwheel (2), the circumferential outer surface of the other end of described first diameter portion (71) is provided with the first limited part (711), described first limited part (711) comprises the first outerplanar (712) and the second outerplanar, described first outerplanar (712) and the axle center of described second outerplanar symmetry with described first diameter portion (71); Width between described first outerplanar (712) and described second outerplanar is less than the width between described first inner plane (62) and described second inner plane (63); Circular track (73) is provided with along on the excircle of described second diameter portion (72),
Described worm shaft (7) is located in described first perforation (43), and described worm screw (6) is set on described worm shaft (7); Be provided with position-limited lever (8) in described second perforation (44), one end of described position-limited lever (8) is positioned at circular track (73).
2. gearing as claimed in claim 1, it is characterized in that: the upper end of described lower shell body (4) is provided with several threaded perforations, described upper shell (5) is provided with the screw corresponding with the threaded perforations of described lower shell body (4), and described lower shell body (4) and described upper shell (5) are removably connected by described screw and described threaded perforations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510778604.3A CN105351608A (en) | 2015-11-13 | 2015-11-13 | Gear device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510778604.3A CN105351608A (en) | 2015-11-13 | 2015-11-13 | Gear device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105351608A true CN105351608A (en) | 2016-02-24 |
Family
ID=55327637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510778604.3A Pending CN105351608A (en) | 2015-11-13 | 2015-11-13 | Gear device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105351608A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4370902A (en) * | 1979-09-28 | 1983-02-01 | Rotork Controls Limited | Drive mechanisms, more particularly for valve actuators |
| CN101539219A (en) * | 2009-01-15 | 2009-09-23 | 浙江罗托克执行器有限公司 | Large and medium-sized worm gear reducer for electric valve actuator |
| TWM504884U (en) * | 2015-04-27 | 2015-07-11 | Mariposa Valve Co Ltd | Gear operator |
-
2015
- 2015-11-13 CN CN201510778604.3A patent/CN105351608A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4370902A (en) * | 1979-09-28 | 1983-02-01 | Rotork Controls Limited | Drive mechanisms, more particularly for valve actuators |
| CN101539219A (en) * | 2009-01-15 | 2009-09-23 | 浙江罗托克执行器有限公司 | Large and medium-sized worm gear reducer for electric valve actuator |
| TWM504884U (en) * | 2015-04-27 | 2015-07-11 | Mariposa Valve Co Ltd | Gear operator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160224 |
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| WD01 | Invention patent application deemed withdrawn after publication |