CN204610768U - A kind of spring cover - Google Patents
A kind of spring cover Download PDFInfo
- Publication number
- CN204610768U CN204610768U CN201520120334.2U CN201520120334U CN204610768U CN 204610768 U CN204610768 U CN 204610768U CN 201520120334 U CN201520120334 U CN 201520120334U CN 204610768 U CN204610768 U CN 204610768U
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- China
- Prior art keywords
- worm
- torque
- bearing
- spring
- worm shaft
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of spring cover, comprise worm shaft, bearing and bearing support, described worm shaft, bearing is connected successively with bearing support, described worm shaft is provided with gear on worm and worm screw, described gear on worm is provided with locating stud one, described gear on worm is fixedly connected with worm shaft by locating stud one, described worm screw is provided with locating stud two, described worm screw is fixedly connected with worm shaft by locating stud two, described bearing surface is provided with tooth bar, described rack-driving is connected with torque switch axle, described bearing support is fixedly connected with baffle plate, described baffle plate is provided with more than one piece, stop collar is provided with between described baffle plate, spring is provided with in described stop collar, the utility model effectively can expand the adjustment range of torque, make the adjustment of the torque of minimum control very convenient.
Description
Technical field
The utility model relates to a kind of torque adjustment technical field, particularly relates to a kind of spring cover.
Background technique
Mechanical component all can produce torsional deflection to a certain degree under torque, therefore torque is also called torque sometimes, torque is the basic load form of various work mechanism transmission shaft, with the ability to work of dynamic power machine, energy consumption, efficiency, running life and Safety performance etc. factor be closely connected, the selection etc. of measurement to the deterministic finite automata of transmission shaft load, the Intensity Design of transmission system working part and prime mover capacity of torque all has great importance.
The moment that mechanical component is rotated is called moment of rotation, be called for short torque, mechanical component all can produce torsional deflection to a certain degree under torque, therefore torque is also called torque sometimes, torque is the basic load form of various work mechanism transmission shaft, with the ability to work of dynamic power machine, energy consumption, efficiency, the factor such as running life and Safety performance is closely connected, the measurement of torque is to the deterministic finite automata of transmission shaft load, the Intensity Design of transmission system working part and the selection etc. of prime mover capacity all have great importance, in addition, (Ω is angular velocity to the relation T=9549P/n of torque and power or T=P/ Ω, unit is rad/s), the nominal torque of motor represents motor shaft end Driving Torque under rated condition, torque equals the product of power and the arm of force or the arm of couple, in International System of Units (SI), the unit of measurement of torque is Newton meter (N m), also once used kgfm etc. as the unit of measurement of torque in engineering, motor shaft end Driving Torque equals the mechanical angle speed of mechanical output divided by rotor of rotor output, direct current motor locked-rotor torque formula TK=9.55KeIK.
The utility model adopts bearing support ring-type tooth bar to engage with torque switch shaftgear, avoids the friction problem of most products dtc signal extension, and existing torque adjustment apparatus is inconvenient in the adjustment of the torque regulating minimum control in motor torque process.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of adjustment range that effectively can expand torque, makes the adjustment spring cover very easily of the torque of minimum control.
For solving the problem, the utility model adopts following technological scheme:
A kind of spring cover, comprise worm shaft, bearing and bearing support, described worm shaft, bearing is connected successively with bearing support, described worm shaft is provided with gear on worm and worm screw, bearing support ring-type tooth bar engages with torque switch shaftgear, avoid the friction problem of dtc signal extension, improve the reliability of direct torque, described gear on worm is provided with locating stud one, described gear on worm is fixedly connected with worm shaft by locating stud one, described worm screw is provided with locating stud two, described worm screw is fixedly connected with worm shaft by locating stud two, described bearing surface is provided with tooth bar, described rack-driving is connected with torque switch axle, described bearing support is fixedly connected with baffle plate, described baffle plate is provided with more than one piece, stop collar is provided with between described baffle plate, stop collar protection butterfly spring can not produce plastic deformation, effectively can expand the adjustment range of torque, make the adjustment of the torque of minimum control very convenient, spring is provided with in described stop collar.
As preferably, described tooth bar is ring-type tooth bar, torque switch axle is connected smooth and easy.
As preferably, described stop collar one end is fixedly connected with baffle plate, keeps stop collar locations of structures to stablize.
As preferably, described spring is butterfly spring, and butterfly spring adopts breaks away from that to roll Forging Technology part life long, reliable performance.
As preferably, described worm shaft is arranged with becoming gap between bearing, has certain shift length when worm screw produces axial force.
This technological scheme has the adjustment range that effectively can expand torque, makes the adjustment feature very easily of the torque of minimum control.
The beneficial effects of the utility model are: the bearing support ring-type tooth bar of setting engages with torque switch shaftgear; avoid the friction problem of dtc signal extension; improve the reliability of direct torque; stop collar protection butterfly spring can not produce plastic deformation; effectively can expand the adjustment range of torque, make the adjustment of the torque of minimum control very convenient, butterfly spring adopts breaks away from that to roll Forging Technology part life long; reliable performance, torque switch axle can control Electric actuator Driving Torque.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural drawing of a kind of spring cover of the present utility model.
Embodiment
Consult shown in Fig. 1, a kind of spring cover, comprise worm shaft 1, bearing 2 and bearing support 3, described worm shaft 1, bearing 2 is connected successively with bearing support 3, described worm shaft 1 is provided with gear on worm 4 and worm screw 5, described gear on worm 4 is provided with locating stud 1, in use, worm screw 5 produce axial force then drawn by bearing 2 or last item bearing 3 make spring 12 produce distortion, the stop collar 11 of spring 12 outside limits its maximum deformation quantity, plastic deformation is produced to protect the unlikely pressing of spring 11, torque switch axle 9 engages with tooth bar 8, the straight-line displacement of bearing support 3 is converted to rotary motion, torque switch axle 9 is stirred torque switch contact and is reached the object controlling Electric actuator Driving Torque, the Driving Torque of the larger product of spring 12 decrement then increases thereupon, described gear on worm 4 is fixedly connected with worm shaft 1 by locating stud 1, described worm screw 5 is provided with locating stud 27, described worm screw 5 is fixedly connected with worm shaft 1 by locating stud 27, described bearing 2 surface is provided with tooth bar 8, described tooth bar 8 is connected with torque switch axle 9, described bearing support 3 is fixedly connected with baffle plate 10, described baffle plate 10 is provided with more than one piece, stop collar 11 is provided with between described baffle plate 10, spring 12 is provided with in described stop collar 11.
Described tooth bar 8 is ring-type tooth bar, in use, keeps transmission smooth and easy.
Described stop collar 11 one end is fixedly connected with baffle plate 10, keeps stop collar 11 structural stability.
Described spring 12 is butterfly spring, and retention is reliable.
Described worm shaft 1 is arranged with becoming gap between bearing 2, has certain shift length when worm screw 5 produces axial force.
In use; worm screw 5 produce axial force then drawn by bearing 2 or last item bearing 3 make spring 12 produce distortion; the stop collar 11 of spring 12 outside limits its maximum deformation quantity; plastic deformation is produced to protect the unlikely pressing of spring 11; torque switch axle 9 engages with tooth bar 8; the straight-line displacement of bearing support 3 is converted to rotary motion, and torque switch axle 9 is stirred torque switch contact and is reached the object controlling Electric actuator Driving Torque, and the Driving Torque of the larger product of spring 12 decrement then increases thereupon.
The beneficial effects of the utility model are: the bearing support ring-type tooth bar of setting engages with torque switch shaftgear; avoid the friction problem of dtc signal extension; improve the reliability of direct torque; stop collar protection butterfly spring can not produce plastic deformation; effectively can expand the adjustment range of torque, make the adjustment of the torque of minimum control very convenient, butterfly spring adopts breaks away from that to roll Forging Technology part life long; reliable performance, torque switch axle can control Electric actuator Driving Torque.
The above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; any change of expecting without creative work or replacement; all should be encompassed within protection domain of the present utility model; therefore, the protection domain that protection domain of the present utility model should limit with claims is as the criterion.
Claims (5)
1. a spring cover, it is characterized in that: comprise worm shaft, bearing and bearing support, described worm shaft, bearing is connected successively with bearing support, described worm shaft is provided with gear on worm and worm screw, described gear on worm is provided with locating stud one, described gear on worm is fixedly connected with worm shaft by locating stud one, described worm screw is provided with locating stud two, described worm screw is fixedly connected with worm shaft by locating stud two, described bearing surface is provided with tooth bar, described rack-driving is connected with torque switch axle, described bearing support is fixedly connected with baffle plate, described baffle plate is provided with more than one piece, stop collar is provided with between described baffle plate, spring is provided with in described stop collar.
2. spring cover according to claim 1, is characterized in that: described tooth bar is ring-type tooth bar.
3. spring cover according to claim 2, is characterized in that: described stop collar one end is fixedly connected with baffle plate.
4. spring cover according to claim 3, is characterized in that: described spring is butterfly spring.
5. spring cover according to claim 4, is characterized in that: described worm shaft is arranged with becoming gap between bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520120334.2U CN204610768U (en) | 2015-03-02 | 2015-03-02 | A kind of spring cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520120334.2U CN204610768U (en) | 2015-03-02 | 2015-03-02 | A kind of spring cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204610768U true CN204610768U (en) | 2015-09-02 |
Family
ID=53963336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520120334.2U Expired - Fee Related CN204610768U (en) | 2015-03-02 | 2015-03-02 | A kind of spring cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204610768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351486A (en) * | 2015-11-03 | 2016-02-24 | 苏州市大力电器有限公司 | Universal worm shaft |
-
2015
- 2015-03-02 CN CN201520120334.2U patent/CN204610768U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351486A (en) * | 2015-11-03 | 2016-02-24 | 苏州市大力电器有限公司 | Universal worm shaft |
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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: 20150902 Termination date: 20160302 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |