CN203822994U - Worm power connecting mechanism for turret clock movement - Google Patents
Worm power connecting mechanism for turret clock movement Download PDFInfo
- Publication number
- CN203822994U CN203822994U CN201420259853.2U CN201420259853U CN203822994U CN 203822994 U CN203822994 U CN 203822994U CN 201420259853 U CN201420259853 U CN 201420259853U CN 203822994 U CN203822994 U CN 203822994U
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- China
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- worm screw
- power connecting
- stepper motor
- axis hole
- hole
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Abstract
The utility model relates to the technical field of turret clocks, and particularly discloses a worm power connecting mechanism for a turret clock movement. The worm power connecting mechanism comprises a movement housing, a worm, a stepping motor, a stepping motor fixing seat and a connecting shaft mechanism, wherein the worm is mounted on the movement housing through bearings, the worm comprises a power connecting end, the stepping motor is fixedly mounted at the outer part of the movement housing through the motor fixing seat, and the power connecting end and the output shaft of the stepping motor are coaxially and fixedly connected through the connecting shaft mechanism; the worm power connecting mechanism is characterized in that the connecting shaft mechanism comprises a shaft hole and a locking sleeve, wherein at least two notches are formed in the hole wall of the shaft hole in the axial direction, the output shaft of the stepping motor is mounted in the shaft hole in an inserting manner, the locking sleeve is mounted at the outer part of the hole wall of the shaft hole in a sleeving manner, and the diameter of the shaft hole is larger than the diameter of the output shaft of the stepping motor. The worm power connecting mechanism for the turret clock movement has the benefits that the processing is convenient, the mounting and the dismounting are convenient, the connecting mechanism is stable and reliable, and the connecting shaft coaxiality is excellent.
Description
Technical field
The utility model relates to a kind of turret clock technical field, relates in particular to a kind of worm screw power connecting mechanism for Machine core of turret clock.
Background technique
Turret clock mainly comprises Machine core of turret clock, minute hand, hour hands and pointer card.Machine core of turret clock is substantially all to adopt stepper motor as power, then drives hour hands and minute hand running through turbine and worm gear.Stepper motor connects with worm screw at present, adopts key to connect to come transmitting torque more.Because the motor diameter of axle is less, conventional only have 16 millimeters as diameter, woodruff key or type thin flat key for multiselect, and the cooperation in its axle, key, hole generally adopts Spielpassung, and its advantage is simple in structure, and centering is good, and mounting or dismounting are convenient; Shortcoming is the stepping characteristic due to stepper motor, can form impact shock, and key can circular runout in keyway, axial float, and of long duration will wearing and tearing, finally causes transmission failure device to be scrapped.If it is that centering property is good that the coordinating of the axle between stepper motor and worm screw, key, hole adopts interference fit, the advantage of this connection, bearing capacity is high, and load can withstand shocks; Shortcoming is high to fit dimension required precision, and processing charges is high.Assembling difficulty is larger, and dismounting interference fit joint needs very large external force, tends to damage correlated parts, is also not easy to plant maintenance.In addition, above Liang Zhong bindiny mechanism, in the time there is chance failure over power, also easily causes the damage of driving component.
Model utility content
The utility model, for above-mentioned the deficiencies in the prior art, provides a kind of worm screw power connecting mechanism for Machine core of turret clock.
The technological scheme that the utility model solves the problems of the technologies described above is as follows: a kind of worm screw power connecting mechanism for Machine core of turret clock, comprise movement housing, worm screw, stepper motor, stepper motor fixed base and connecting shaft mechanism, described worm screw is arranged on described movement housing by bearing, described worm screw comprises the power connecting end that stretches out described machine core shell external body, described stepper motor is fixedly mounted on the outside of described movement housing by described motor fixing seat, the power connecting end of described worm screw is coaxially fixedly connected with by described connecting shaft mechanism with the output shaft of stepper motor, it is characterized in that, described connecting shaft mechanism is included in axis hole and the lock sleeve of the power connecting end processing of described worm screw, on the hole wall of described axis hole, be provided with vertically at least two otch, the output shaft of described stepper motor is inserted in described axis hole, described lock sleeve is sleeved on the hole wall outside of described axis hole, the diameter of described axis hole is greater than the diameter of described stepper motor output shaft.
On the basis of technique scheme, the utility model can also do following improvement.
Further, the output shaft that the length of described otch is greater than described stepper motor inserts the degree of depth of described axis hole.
Further, on the hole wall of described axis hole, be provided with vertically four otch.
Further, described lock sleeve comprises trepanning and the locking hole of a side opening, in described locking hole, is provided with lock bolt.
The beneficial effects of the utility model are: the first is convenient to processing, installation, convenient disassembly, and reliable and stable, and connecting shaft coaxality is good.It two is by controlling the locking degree of locking device well, and in the time that load exceedes the surface friction drag of worm screw and stepper motor between centers, will produce skids allows transmission failure, to protect correlated parts to avoid damaging aggravation, reduces maintenance expenses.
Brief description of the drawings
Fig. 1 is bindiny mechanism of the present utility model schematic diagram;
Fig. 2 is worm structure schematic diagram;
Fig. 3 is that the A-A of Fig. 2 is to sectional drawing;
Fig. 4 is the structural representation of lock sleeve;
Fig. 5 is the plan view of Fig. 4.
At Fig. 1 in Fig. 5,1, movement housing; 2, worm screw; 2-1, otch; 2-2, power connecting end; 2-3, axis hole; 3, motor fixing seat; 4, stepper motor; 4-1, output shaft; 5, lock sleeve; 5-1, trepanning; 5-2, locking hole; 6, bearing.
Embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Fig. 1 to 5, a kind of worm screw power connecting mechanism for Machine core of turret clock, comprise movement housing 1, worm screw 2, stepper motor 4, motor fixing seat 3 and connecting shaft mechanism, described worm screw 2 is arranged on described movement housing 1 by bearing 6, described worm screw 2 comprises the power connecting end 2-2 that stretches out described machine core shell external body, described stepper motor 4 is fixedly mounted on the outside of described movement housing 1 by described motor fixing seat 3, the power connecting end 2-2 of described worm screw 2 is coaxially fixedly connected with by described connecting shaft mechanism with the output shaft 4-1 of stepper motor, described connecting shaft mechanism is included in axis hole 2-3 and the lock sleeve 5 of the power connecting end 2-2 processing of described worm screw, on the hole wall of described axis hole 2-3, be provided with vertically at least two otch 2-1, the output shaft 4-1 of described stepper motor is inserted in described axis hole 2-3, described lock sleeve 5 is sleeved on the hole wall outside of described axis hole, the diameter of described axis hole is greater than the diameter of described stepper motor output shaft 4-1.
The utility model can be regarded as integrates clamping coupling and worm screw 2, the additional lock sleeve 5 of worm screw power connecting end 2-2.Utilize the pretightening force of bolt to allow lock sleeve 5 make the hole wall of described axis hole produce slight resiliently deformable, thereby strengthened the frictional force between axis hole 2-3 and stepper motor output shaft 4-1, utilize mutual surface friction drag to carry out transmitting torque.After worm screw and clamping coupling are integrated, having overcome clamping coupling must be the limitation of same cylindrical to two diameters of axle, and can shorten axial connection space after change.Add and first bored axis hole 2-3 at described worm screw power connecting end 2-2 man-hour, then on hole wall, saw out otch 2-1.
The output shaft 4-1 that the length of described otch 2-1 is greater than described stepper motor inserts the degree of depth of described axis hole 2-3.
On the hole wall of described axis hole 2-3, be provided with vertically four otch 2-1.
Described lock sleeve 5 comprises trepanning 5-1 and the locking hole 5-2 of a side opening, in described locking hole 5-2, is provided with lock bolt.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. the worm screw power connecting mechanism for Machine core of turret clock, comprise movement housing, worm screw, stepper motor, stepper motor fixed base and connecting shaft mechanism, described worm screw is arranged on described movement housing by bearing, described worm screw comprises the power connecting end that stretches out described machine core shell external body, described stepper motor is fixedly mounted on the outside of described movement housing by described motor fixing seat, the power connecting end of described worm screw is coaxially fixedly connected with by described connecting shaft mechanism with the output shaft of stepper motor, it is characterized in that, described connecting shaft mechanism is included in axis hole and the lock sleeve of the power connecting end processing of described worm screw, on the hole wall of described axis hole, be provided with vertically at least two otch, the output shaft of described stepper motor is inserted in described axis hole, described lock sleeve is sleeved on the hole wall outside of described axis hole, the diameter of described axis hole is greater than the diameter of described stepper motor output shaft.
2. the worm screw power connecting mechanism for Machine core of turret clock according to claim 1, is characterized in that, the output shaft that the length of described otch is greater than described stepper motor inserts the degree of depth of described axis hole.
3. the worm screw power connecting mechanism for Machine core of turret clock according to claim 1 and 2, is characterized in that, is provided with vertically four otch on the hole wall of described axis hole.
4. the worm screw power connecting mechanism for Machine core of turret clock according to claim 3, is characterized in that, described lock sleeve comprises trepanning and the locking hole of a side opening, in described locking hole, is provided with lock bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420259853.2U CN203822994U (en) | 2014-05-20 | 2014-05-20 | Worm power connecting mechanism for turret clock movement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420259853.2U CN203822994U (en) | 2014-05-20 | 2014-05-20 | Worm power connecting mechanism for turret clock movement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822994U true CN203822994U (en) | 2014-09-10 |
Family
ID=51478502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420259853.2U Active CN203822994U (en) | 2014-05-20 | 2014-05-20 | Worm power connecting mechanism for turret clock movement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822994U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701492A (en) * | 2017-11-13 | 2018-02-16 | 利欧集团浙江泵业有限公司 | A kind of motor-shaft extending and water pump vane bindiny mechanism |
-
2014
- 2014-05-20 CN CN201420259853.2U patent/CN203822994U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701492A (en) * | 2017-11-13 | 2018-02-16 | 利欧集团浙江泵业有限公司 | A kind of motor-shaft extending and water pump vane bindiny mechanism |
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| GR01 | Patent grant |