CN202833910U - Mechanical transmission structure with measurable resistance - Google Patents
Mechanical transmission structure with measurable resistance Download PDFInfo
- Publication number
- CN202833910U CN202833910U CN201220446197.8U CN201220446197U CN202833910U CN 202833910 U CN202833910 U CN 202833910U CN 201220446197 U CN201220446197 U CN 201220446197U CN 202833910 U CN202833910 U CN 202833910U
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- CN
- China
- Prior art keywords
- mechanical transmission
- transmission structure
- driving shaft
- driven shaft
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a mechanical transmission structure with measurable resistance. The mechanical transmission structure with the measurable resistance comprises a driving shaft and a driven shaft. The mechanical transmission structure with the measurable resistance is characterized in that a joint portion of the driving shaft and the driven shaft is provided with a proximity switch, wherein the joint potion is namely the front end of the driving shaft. The tail end of the driven shaft is provided with a sensing slice. When the proximity switch encounters the sensing slice, the proximity switch sends out an electric signal to detect angle displacement between the driving shaft and the driven shaft. The mechanical transmission structure with the measurable resistance has the advantages of being simple in structural design, facilitating a detection method and being capable of accurately and quantifiably measuring magnitude of resistance that a shaft encounters when the shaft rotates.
Description
Technical field
The utility model relates to a kind of mechanical structure, relates in particular to a kind of mechanical transmission structure of surveying resistance.
Background technique
In mechanical transmission, meeting obstructions when axle is rotating, how easily and accurately to detect be the problem that often can run into.Whether the method that at present usually provides the motor current of power to change by detection detects and meets obstructions, and can to need special electronic circuit, shortcoming be that circuit is complicated and detect like this, is difficult to quantize for the size of the resistance that runs into, and antijamming capability is not strong.
In various kinds of sensors, have a kind of to element---the displacement transducer of " perception " ability is arranged near its object in addition.Utilize displacement transducer that the sensitivity characteristic near object is reached the purpose of control switch on-off, Here it is proximity switch.The electrical signal that sends by proximity switch and contacting of induction piece quantizes the angle displacement that driving shaft and driven shaft occur in the mechanical transmission, thus the size that meets obstructions when measurement shaft that can be convenient and simple rotates.The utility model comes therefrom.
Summary of the invention
The utility model purpose is: a kind of mechanical transmission structure that meets obstructions when shaft rotates that detects is provided convenient and simplely.
The technical solution of the utility model is:
A kind of mechanical transmission structure of surveying resistance, comprise driving shaft and driven shaft, it is characterized in that, place, connecting part at driving shaft and driven shaft is that the driving shaft front end is provided with proximity switch, the driven shaft end is provided with induction piece, and described proximity switch can send the angle displacement that electrical signal detects driving shaft and driven shaft after running into induction piece.
Further, described driven the tip of the axis is provided with projection, and described driving shaft front end is provided with the groove that matches with described projection, and described projection snaps in the groove; The left bottom of described groove and upper right respectively arrange a through hole.
Further, also comprise two springs, described spring passes described through hole and described bump contact, and the outer end of described spring is fixed with the spring fixing bolt.
Further, respectively establish a counterbore in the both sides of described projection, the position of described counterbore is corresponding with groove inner via hole position, and this spring one end stretched into described counterbore and bump contact after described spring passed through hole.
Under the normal working, the driving shaft drive driven shaft that turns clockwise, when driven shaft does not meet obstructions, the bump contact of spring and driven shaft but do not have compressed, driven shaft and driving shaft are not subjected to displacement, this moment, proximity switch and induction piece did not approach, so can not send electrical signal, driving shaft drives the driven shaft normal rotation.When abnormal, driven shaft meets obstructions, and pressing spring and driving shaft are subjected to displacement, and induction piece sends electrical signal after approaching and contact with proximity switch, run into resistance thereby can detect driven shaft, the size of corresponding resistance can specifically quantize according to the decrement size of spring.
The utility model has the advantages that:
The utility model mechanical transmission structure simplicity of design, detecting method is convenient, can accurately and quantitatively measure the drag size that shaft runs into when rotating.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the front view of each parts of the utility model mechanical transmission structure;
Fig. 2 is the anti-view of each parts of the utility model mechanical transmission structure;
Fig. 3 is the schematic representation under the utility model mechanical transmission structure normal operating condition;
Fig. 4 is the schematic representation after the utility model mechanical transmission structure meets obstructions.
Wherein: 1, induction piece, 2, proximity switch, 3, projection, 4, groove, 5, through hole, 6, spring, 7, the spring fixing bolt, 8, driving shaft, 9, driven shaft, 10, counterbore.
Embodiment
Embodiment:
Below in conjunction with specific embodiment such scheme is described further.Should be understood that these embodiments are not limited to limit scope of the present utility model for explanation the utility model.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete engineering, and not marked implementation condition is generally the condition in the normal experiment.
As depicted in figs. 1 and 2, a kind of mechanical transmission structure of surveying resistance, comprise driving shaft 8 and driven shaft 9, place, connecting part at driving shaft 8 and driven shaft 9 is that driving shaft 8 front ends are provided with proximity switch 2, driven shaft 9 ends are provided with induction piece 1, and described proximity switch 2 can send the angle displacement that electrical signal detects driving shaft 8 and driven shaft 9 after running into induction piece 1.
The end of described driven shaft 9 is provided with projection 3, and described driving shaft 8 front ends are provided with the groove 4 that matches with described projection 3, and described projection 3 snaps in the groove 4; The left bottom of described groove 4 and upper right respectively arrange a through hole 5.
Also comprise two springs 6, described spring 6 passes described through hole 5 and contacts with described projection 3, and the outer end of described spring 6 is fixing with spring fixing bolt 7.
Respectively establish a counterbore 10 in the both sides of described projection 3, the position of described counterbore 10 is corresponding with groove 4 inner via holes 5 positions, and described spring 6 passes behind the through hole 5 these spring 6 one ends and stretches into described counterbore 10 and contact with projection 3.
As shown in Figure 3, under the normal working, driving shaft 8 turns clockwise and drives driven shaft 9, when driven shaft 9 does not meet obstructions, spring 6 contacts with the projection 3 of driven shaft 9 but does not have compressedly, and driven shaft 9 and driving shaft 8 are not subjected to displacement, and this moment, proximity switch 2 and induction piece 1 did not approach, so can not send electrical signal, driving shaft 8 drives driven shaft 9 normal rotation.
As shown in Figure 4, when abnormal, driven shaft 9 meets obstructions, pressing spring 6 is subjected to displacement with driving shaft 8, induction piece 1 and proximity switch 2 sends electrical signal after approaching and contacting, run into resistance thereby can detect driven shaft 9, the size of corresponding resistance can specifically quantize according to the decrement size of spring.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.
Claims (4)
1. the mechanical transmission structure that can survey resistance, comprise driving shaft and driven shaft, it is characterized in that, place, connecting part at driving shaft and driven shaft is that the driving shaft front end is provided with proximity switch, the driven shaft end is provided with induction piece, and described proximity switch can send the angle displacement that electrical signal detects driving shaft and driven shaft after running into induction piece.
2. the mechanical transmission structure of surveying resistance according to claim 1 is characterized in that, described driven the tip of the axis is provided with projection, and described driving shaft front end is provided with the groove that matches with described projection, and described projection snaps in the groove; The left bottom of described groove and upper right respectively arrange a through hole.
3. the mechanical transmission structure of surveying resistance according to claim 2 is characterized in that, also comprises two springs, and described spring passes described through hole and described bump contact, and the outer end of described spring is fixed with the spring fixing bolt.
4. the mechanical transmission structure of surveying resistance according to claim 3, it is characterized in that, respectively establish a counterbore in the both sides of described projection, the position of described counterbore is corresponding with groove inner via hole position, and this spring one end stretched into described counterbore and bump contact after described spring passed through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220446197.8U CN202833910U (en) | 2012-09-04 | 2012-09-04 | Mechanical transmission structure with measurable resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220446197.8U CN202833910U (en) | 2012-09-04 | 2012-09-04 | Mechanical transmission structure with measurable resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833910U true CN202833910U (en) | 2013-03-27 |
Family
ID=47945619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220446197.8U Expired - Lifetime CN202833910U (en) | 2012-09-04 | 2012-09-04 | Mechanical transmission structure with measurable resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833910U (en) |
-
2012
- 2012-09-04 CN CN201220446197.8U patent/CN202833910U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |