CN203770608U - Connecting rod shifting displacement measurement mechanism - Google Patents
Connecting rod shifting displacement measurement mechanism Download PDFInfo
- Publication number
- CN203770608U CN203770608U CN201420082038.3U CN201420082038U CN203770608U CN 203770608 U CN203770608 U CN 203770608U CN 201420082038 U CN201420082038 U CN 201420082038U CN 203770608 U CN203770608 U CN 203770608U
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- Prior art keywords
- gear
- connecting rod
- bearing pin
- output shaft
- angle output
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- Expired - Lifetime
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- 238000005259 measurement Methods 0.000 title claims abstract description 26
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009347 mechanical transmission Effects 0.000 description 2
- 206010009232 Clang associations Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a connecting rod shifting displacement measurement mechanism. The mechanism comprises a shifting gear shaft assembly, a shifting gear shaft pin shaft, a connecting rod, an angle output shaft pin shaft and an angle output shaft, and is characterized in that one end of the connecting rod is connected with the shifting gear shaft assembly via the shifting gear shaft pin shaft, and the other end of the connecting rod is connected with the angle output shaft via the angle output shaft pin shaft; a sensor is fixedly connected to the angle output shaft; the rotation range of the shifting gear shaft assembly is two times of the measurement travel 85 degrees of the sensor. The connecting rod shifting displacement measurement mechanism can substitute for the meshing of the traditional gears, drives the sensor to measure angles, also can be used for measuring angles in a narrow space, is simple and practical, reduces the mass of an actuator, is convenient to assemble, and lowers the production cost to a great extent.
Description
Technical field
The utility model relates to a kind of connecting rod gear selecting displacement measurement mechanism, and a kind of connecting rod deceleration, the stroke that belong on minicar automatic mechanical transmission amplify (dwindling) mechanism.
Background technique
Along with the fast development of automobile pollution and the sharply increase of amateur driver's quantity, automatic gearbox is just presenting fast-developing trend.Wherein in automatic mechanical transmission development process, for keeping consistent with corresponding manual vehicle type structure, layout as far as possible, the self-clanging gear-shift newly increasing tends to be subject to larger spatial constraints, causes angle measuring mechanism wherein often to face the difficult problem that range mates.At present, at home and abroad in existing structural design, by treating that displacement zooms in or out the object that reaches optimum measurement effect, often adopt gear-driven mode, the mechanism of similar crank block is only for being converted to linear displacement angular displacement or angular displacement being converted to linear movement measuring.
Traditional wide-angle (exceeding sensor measurement scope) angle displacement measurement structure, generally, by gear transmission, the angle of part to be measured is reduced to rear measurement, in less space range, need the modulus of gear very little, want to ensure that the machining accuracy of gear is more difficult; Due to the impact of gear transmission sideshake, gear transmission certainly exists idle stroke, causes the precision of angle measurement lower simultaneously; On the other hand, for ensureing the corresponding relation between part angular displacement to be measured (absolute value) and sensor measurement, need the specific tooth of two gears to align, and can only make a call to a smaller mark at the specific gear position of fine module gear, actual to add man-hour very not obvious, is extremely inconvenient to produce assembling; Moreover for ensure Gear Processing, transmission accuracy as far as possible, gear is generally steel part, cost is higher.
Summary of the invention
The purpose of this utility model is to provide a kind of connecting rod gear selecting displacement measurement mechanism, it can replace traditional gear engagement, driving sensor carries out angle measurement, also can be for the angle measurement of other narrow space position, mechanism is simple and practical, alleviate final controlling element quality, be convenient to assembling, significantly reduced cost of production.
The technical solution of the utility model is achieved in that a kind of connecting rod gear selecting displacement measurement mechanism, formed by gear selecting gear shaft assembly, gear selecting gear shaft bearing pin, connecting rod, angle output shaft bearing pin, angle output shaft, it is characterized in that: one end of connecting rod is connected with gear selecting gear shaft assembly by gear selecting gear shaft bearing pin, the other end of connecting rod is connected with angle output shaft by angle output shaft bearing pin, sensor is fixedly connected on angle output shaft, and the slewing area of gear selecting gear shaft assembly is 2 times that sensor measurement stroke 85 is spent.
Described gear selecting gear shaft bearing pin position is L1 apart from the rotating center distance of gear selecting gear shaft assembly, the hinge position on angle output shaft, and the rotating center of angle output shaft bearing pin elongation degree output shaft distance is L2, L2 is about 2 times of L1.
Described gear selecting gear shaft bearing pin is three stage structure, and bearing pin top is the straight knurling cylndrical surface with chamfering, and the little 0.3mm to 0.5mm of bearing pin middle part diameter, coordinates with the hole on gear selecting gear shaft assembly; Bearing pin lower diameter maximum, by and middle part between step surface location, its cylndrical surface is pin working surface.
Good effect of the present utility model is: it can replace traditional gear engagement, and driving sensor carries out angle measurement, also can be for the angle measurement of other narrow space position, mechanism is simple and practical, alleviate final controlling element quality, be convenient to assembling, significantly reduced cost of production.
Brief description of the drawings
Fig. 1 is structural drawing of the present utility model.
Fig. 2 is the structural drawing of bearing pin of the present utility model.
Fig. 3 is bearing pin particular location figure of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail: as shown in Figure 1, a kind of connecting rod gear selecting displacement measurement mechanism, by gear selecting gear shaft assembly 1, gear selecting gear shaft bearing pin 2, connecting rod 3, angle output shaft bearing pin 4, angle output shaft 5 forms, it is characterized in that: one end of connecting rod 3 is connected with gear selecting gear shaft assembly 1 by gear selecting gear shaft bearing pin 2, the other end of connecting rod 3 is connected with angle output shaft 5 by angle output shaft bearing pin 4, sensor 6 is fixedly connected on angle output shaft 5, the slewing area of gear selecting gear shaft assembly 1 is that sensor 6 is measured 2 times that stroke 85 is spent.
Described gear selecting gear shaft bearing pin 2 positions are L1 apart from the rotating center distance of gear selecting gear shaft assembly 1, the hinge position on angle output shaft 5, and the rotating center of angle output shaft bearing pin 4 elongation degree output shafts 5 distance is L2, L2 is about 2 times of L1.
As shown in Figure 2,3, described gear selecting gear shaft bearing pin 2 is three stage structure, and bearing pin top 2-1 is the straight knurling cylndrical surface with chamfering, and the little 0.3mm to 0.5mm of bearing pin middle part 2-2 diameter, coordinates with the hole on gear selecting gear shaft assembly 1; Bearing pin bottom 2-3 diameter maximum, by and middle part between step surface 2-4 location, its cylndrical surface is pin working surface.
As shown in Figure 1, gear selecting gear shaft assembly 1 and angle output shaft 5 can be reduced to two cranks of quadratic crank mechanism, with connecting rod 3 and a basic crank-rocker mechanism of two common compositions of bearing pins.Hinge position on gear selecting gear shaft assembly 1, be that gear selecting gear shaft bearing pin 2 positions are L1 apart from the rotating center distance of gear selecting gear shaft assembly 1, hinge position on angle output shaft 5, the rotating center distance that is angle output shaft bearing pin 4 elongation degree output shafts 5 is L2, L2 is about 2 times of L1, the gear selecting displacement measurement mechanism of this specified structure, the angle of swing of to be measured significantly can be reduced to output after (approximately 1/2), can ensure transmission gapless simultaneously, the requirement of assembling adjustment-free, improves measuring accuracy and manufacturing efficiency greatly.Meanwhile, because connecting rod and driving wheel do not need to bear larger load, can make working of plastics, cost is very low.
It should be noted that between sensor angular displacement that this kind of measuring mechanism records and to be measured actual displacement angle to be nonlinear correspondence relation, according to the difference of use position, may increase software processing links to the output value of sensor.
This kind of structure can meet the measurement demand of most little spaces, wide-angle, and technique realizes simple and reliable, is worthy of popularization.
Claims (3)
1. a connecting rod gear selecting displacement measurement mechanism, formed by gear selecting gear shaft assembly, gear selecting gear shaft bearing pin, connecting rod, angle output shaft bearing pin, angle output shaft, it is characterized in that: one end of connecting rod is connected with gear selecting gear shaft assembly by gear selecting gear shaft bearing pin, the other end of connecting rod is connected with angle output shaft by angle output shaft bearing pin, sensor is fixedly connected on angle output shaft, and the slewing area of gear selecting gear shaft assembly is 2 times that sensor measurement stroke 85 is spent.
2. according to a kind of connecting rod gear selecting displacement measurement mechanism described in claim 1, it is characterized in that described gear selecting gear shaft bearing pin position is L1 apart from the rotating center distance of gear selecting gear shaft assembly, hinge position on angle output shaft, the rotating center distance that is angle output shaft bearing pin elongation degree output shaft is L2, L2 is L1 2 times.
3. according to a kind of connecting rod gear selecting displacement measurement mechanism described in claim 1, it is characterized in that described gear selecting gear shaft bearing pin is three stage structure, bearing pin top is the straight knurling cylndrical surface with chamfering, and the little 0.3mm to 0.5mm of bearing pin middle part diameter, coordinates with the hole on gear selecting gear shaft assembly; Bearing pin lower diameter maximum, by and middle part between step surface location, its cylndrical surface is pin working surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420082038.3U CN203770608U (en) | 2014-02-26 | 2014-02-26 | Connecting rod shifting displacement measurement mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420082038.3U CN203770608U (en) | 2014-02-26 | 2014-02-26 | Connecting rod shifting displacement measurement mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770608U true CN203770608U (en) | 2014-08-13 |
Family
ID=51287799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420082038.3U Expired - Lifetime CN203770608U (en) | 2014-02-26 | 2014-02-26 | Connecting rod shifting displacement measurement mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770608U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110774244A (en) * | 2019-12-05 | 2020-02-11 | 山东建筑大学 | Macro-micro displacement mechanism |
-
2014
- 2014-02-26 CN CN201420082038.3U patent/CN203770608U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110774244A (en) * | 2019-12-05 | 2020-02-11 | 山东建筑大学 | Macro-micro displacement mechanism |
| CN110774244B (en) * | 2019-12-05 | 2024-06-07 | 山东建筑大学 | Macro-micro displacement mechanism |
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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: 20140813 |