CN205482777U - A sensor for measuring trees diameter of a cross -section of a tree trunk 1. 3 meters above ground - Google Patents
A sensor for measuring trees diameter of a cross -section of a tree trunk 1. 3 meters above ground Download PDFInfo
- Publication number
- CN205482777U CN205482777U CN201620044868.6U CN201620044868U CN205482777U CN 205482777 U CN205482777 U CN 205482777U CN 201620044868 U CN201620044868 U CN 201620044868U CN 205482777 U CN205482777 U CN 205482777U
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- China
- Prior art keywords
- steel wire
- gear
- sensor
- measuring
- diameter
- 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.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 40
- 239000010959 steel Substances 0.000 claims abstract description 40
- 238000004804 winding Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 210000000481 breast Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a sensor for measuring trees diameter of a cross -section of a tree trunk 1.3 meters above ground, center pin one end is provided with the screw thread, the nut is fixed to be set up on the shell, the center pin forms threaded connection through screw thread on it and nut, the gear sets up at the centraxonial other end, the partly of steel wire is twined on center pin steel wire spiral post with the one coil canoe, all the other parts of steel wire are stretched out the shell and are being enclosed the trees winding round that awaits measuring, outside transmission shaft becomes gear connection with gear -type, outside transmission shaft has the rack of tooth slide bar to link to each other with slide rheostat's, when the diameter of a cross -section of a tree trunk 1.3 meters above the ground of the trees of awaiting measuring changed, the winding was stretched out at the epaxial steel wire in center, drew to stretch to drive the center pin and rotate, drove gear revolve, drove outside transmission shaft through gear revolve, and outside transmission shaft rotates the tooth slide bar that has that drives slide rheostat and slides, had the tooth slide bar to slide the length that drives slide rheostat's resistance wire and changed, and the change volume of resistance wire corresponds the change volume of the trees diameter of a cross -section of a tree trunk 1.3 meters above the ground.
Description
Technical field
This utility model relates to field of forestry, in particular to a kind of biography for measuring tree breast-height diameter
Sensor.
Background technology
Present stage, the measurement of tree breast-height diameter was most important that it is checked during forest resourceies are checked
Individual link, present stage is in main or measurement side of employing human contact's formula in measuring operation process of China
Method, mainly carries out hand dipping by diameter of a cross-section of a tree trunk 1.3 meters above the ground slide calliper rule, needs two people to enter during general measure simultaneously
OK, a people measures people's record, and certainty of measurement all can not be protected with measuring efficiency, and measures effect
Rate is the lowest.
Utility model content
This utility model provides a kind of sensor for measuring tree breast-height diameter, in order to overcome in prior art
At least one problem existed.
For reaching above-mentioned purpose, this utility model provides a kind of sensor for measuring tree breast-height diameter,
Including: shell, nut and setting central shaft in the housing, steel wire, gear, outer drive shafts
And slide rheostat, wherein:
Described central shaft one end is provided with screw thread, and described nut is fixedly installed on the housing, described in
Mandrel is formed with described nut by screw thread thereon and threadeds, and described gear is arranged on described central shaft
The other end, a part for described steel wire is wrapped on central shaft steel wire winding post with individual pen canoe,
The remainder of described steel wire stretches out described shell and is wound around a circle, described outer drive shafts round trees to be measured
Forming gear with described gear to be connected, described outer drive shafts has tooth sliding bar with described slide rheostat
Tooth bar be connected；
When the diameter of a cross-section of a tree trunk 1.3 meters above the ground of trees to be measured changes, the steel wire being wrapped on described central shaft stretches out, and draws and stretches
Drive described central axis, drive described pinion rotation, drive described outside by described pinion rotation
Power transmission shaft, described outer drive shafts rotates and drives the tooth sliding bar that has of slide rheostat to slide, has tooth to slide
Bar slip drives the length of the resistance wire of described slide rheostat to change, and the variable quantity of resistance wire is corresponding
The variable quantity of tree breast-height diameter.
Further, the width of described steel wire is identical with the width of described screw thread.
Further, the direction of winding of described steel wire and outlet position at described sensor near trees to be measured
Inner side.
Further, described outer drive shafts is column type structure.
Further, the structure having tooth sliding bar described in is to be provided with a rodshaped pinion outside sliding bar.
This utility model utilizes the growth change of the measure of the change tree breast-height diameter of steel wire length, can examine in real time
The increment of assize wood；Feature when simultaneously having long, because coil type steel wire winding can increase greatly
Tree breast diameter survey length, can place the most several years the most long.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that,
Accompanying drawing in describing below is only embodiments more of the present utility model, for ordinary skill people
From the point of view of Yuan, on the premise of not paying creative work, it is also possible to obtain the attached of other according to these accompanying drawings
Figure.
Fig. 1 is the sensor construction figure for measuring tree breast-height diameter of one embodiment of this utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technology in this utility model embodiment
Scheme is clearly and completely described, it is clear that described embodiment is only this utility model one
Divide embodiment rather than whole embodiments.Based on the embodiment in this utility model, this area is common
The every other embodiment that technical staff is obtained under not paying creative work premise, broadly falls into this
The scope of utility model protection.
Fig. 1 is the sensor construction figure for measuring tree breast-height diameter of one embodiment of this utility model.As
Shown in figure, include for the sensor measuring tree breast-height diameter: shell 10, nut 3 and be arranged on shell 10
In central shaft 2, steel wire 4, gear 5, outer drive shafts 6 and slide rheostat, wherein:
Central shaft 2 one end is provided with screw thread 1, and nut 3 is fixedly installed on shell 10, and central shaft passes through
Screw thread thereon is formed with nut and threadeds, the other end of the centrally disposed axle of gear, of steel wire
Dividing and be wrapped on central shaft steel wire winding post with individual pen canoe, the remainder 9 of steel wire stretches out shell
Being wound around a circle round trees to be measured, outer drive shafts forms gear with gear and is connected, outer drive shafts and cunning
The dynamic rheostatic tooth bar having tooth sliding bar 7 is connected；
When the diameter of a cross-section of a tree trunk 1.3 meters above the ground of trees to be measured changes, it is wound around steel wire on center shaft and stretches out, draw and stretch drive
Central axis, driven gear rotates, and drives outer drive shafts by pinion rotation, and outer drive shafts turns
The dynamic tooth sliding bar that has driving slide rheostat slides, and has tooth sliding bar to slide and drives the electricity of slide rheostat
The length of resistance silk 8 changes, the variable quantity of the variable quantity correspondence tree breast-height diameter of resistance wire.
The variable quantity of the diameter of a cross-section of a tree trunk 1.3 meters above the ground can be calculated as follows:
C=nR
Wherein, C is the diameter of a cross-section of a tree trunk 1.3 meters above the ground (unit is millimeter), and R is resistance value (unit is ohm), and n is constant
(drawing according to the actual value of gear size and slide rheostat).
Further, the width of above-mentioned steel wire is identical with the width of screw thread, i.e. central axis one Zhou Houzhong
The displacement of mandrel is identical with the displacement of steel wire coil, it is ensured that the most parallel output of steel wire.
Wherein, the common effect of screw thread, nut, the winding of steel wire individual pen and steel wire width is: ensure coil
Stretch position remains at line outlet.When after central axis, owing to nut is fixed on shell, rotation
The central axle threads turned can produce displacement, and meanwhile, after the steel wire stretching of individual pen canoe, coil subtracts
Few, stretch position also can produce displacement, and shift length is equal to steel wire live width, when screw thread individual pen width is equal to
During steel wire width, direction of displacement is reversed, reaches to repeal by implication, so keep steel wire to stretch position
Put all the time with line outlet a position.If central shaft will not displacement, after steel wire is stretched, steel wire
Position can misplace with line outlet, cause measurement error even cannot measure.
Further, the direction of winding of above-mentioned steel wire and outlet position at sensor in trees to be measured
Side, it is possible to press close to by assize, it is ensured that measuring steel wire forms complete diameter of a cross-section of a tree trunk 1.3 meters above the ground girth.
Further, said external power transmission shaft is column type structure, can gear displacement on center shaft
Still transmission can not drop out gear and buckle after change.
Further, the above-mentioned structure having tooth sliding bar is to be provided with a rodshaped pinion outside sliding bar,
Pinion rotation can be transformed into linear displacement by this design.
Additionally, measure the change of precision except increasing slide rheostat precision, it is also possible in changing
The gear size of mandrel gear and outer drive shafts controls, the gear ratio of central shaft and outer drive shafts
The biggest certainty of measurement is the highest, otherwise certainty of measurement is the lowest.
This utility model utilizes the growth change of the measure of the change tree breast-height diameter of steel wire length, can examine in real time
The increment of assize wood；Feature when simultaneously having long, because coil type steel wire winding can increase greatly
Tree breast diameter survey length, can place the most several years the most long.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, in accompanying drawing
Module or flow process not necessarily implement necessary to this utility model.
One of ordinary skill in the art will appreciate that: the module in device in embodiment can be according to enforcement
Example describes in the device being distributed in embodiment, it is also possible to carries out respective change and is disposed other than the present embodiment
In one or more devices.The module of above-described embodiment can merge into a module, it is also possible to further
Split into multiple submodule.
Last it is noted that above example is only in order to illustrate the technical solution of the utility model, rather than
It is limited；Although this utility model being described in detail with reference to previous embodiment, this area
Those of ordinary skill is it is understood that the technical scheme described in previous embodiment still can be repaiied by it
Change, or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of this utility model embodiment technical scheme.
Claims (5)
1. one kind for measuring the sensor of tree breast-height diameter, it is characterised in that including: shell, nut and
Central shaft, steel wire, gear, outer drive shafts and slide rheostat in the housing is set, wherein:
Described central shaft one end is provided with screw thread, and described nut is fixedly installed on the housing, described in
Mandrel is formed with described nut by screw thread thereon and threadeds, and described gear is arranged on described central shaft
The other end, a part for described steel wire is wrapped on central shaft steel wire winding post with individual pen canoe,
The remainder of described steel wire stretches out described shell and is wound around a circle, described outer drive shafts round trees to be measured
Forming gear with described gear to be connected, described outer drive shafts has tooth sliding bar with described slide rheostat
Tooth bar be connected；
When the diameter of a cross-section of a tree trunk 1.3 meters above the ground of trees to be measured changes, the steel wire being wrapped on described central shaft stretches out, and draws and stretches
Drive described central axis, drive described pinion rotation, drive described outside by described pinion rotation
Power transmission shaft, described outer drive shafts rotates and drives the tooth sliding bar that has of slide rheostat to slide, has tooth to slide
Bar slip drives the length of the resistance wire of described slide rheostat to change, and the variable quantity of resistance wire is corresponding
The variable quantity of tree breast-height diameter.
Sensor for measuring tree breast-height diameter the most according to claim 1, it is characterised in that institute
The width stating steel wire is identical with the width of described screw thread.
Sensor for measuring tree breast-height diameter the most according to claim 1, it is characterised in that institute
State the direction of winding of steel wire with outlet position at described sensor near the inner side of trees to be measured.
Sensor for measuring tree breast-height diameter the most according to claim 1, it is characterised in that institute
Stating outer drive shafts is column type structure.
Sensor for measuring tree breast-height diameter the most according to claim 1, it is characterised in that institute
The structure stating tooth sliding bar is to be provided with a rodshaped pinion outside sliding bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620044868.6U CN205482777U (en) | 2016-01-18 | 2016-01-18 | A sensor for measuring trees diameter of a cross -section of a tree trunk 1. 3 meters above ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620044868.6U CN205482777U (en) | 2016-01-18 | 2016-01-18 | A sensor for measuring trees diameter of a cross -section of a tree trunk 1. 3 meters above ground |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205482777U true CN205482777U (en) | 2016-08-17 |
Family
ID=56670980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620044868.6U Expired - Fee Related CN205482777U (en) | 2016-01-18 | 2016-01-18 | A sensor for measuring trees diameter of a cross -section of a tree trunk 1. 3 meters above ground |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205482777U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979745A (en) * | 2016-01-18 | 2017-07-25 | 中国林业科学研究院资源信息研究所 | A kind of sensor for being used to measure tree breast-height diameter |
-
2016
- 2016-01-18 CN CN201620044868.6U patent/CN205482777U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979745A (en) * | 2016-01-18 | 2017-07-25 | 中国林业科学研究院资源信息研究所 | A kind of sensor for being used to measure tree breast-height diameter |
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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: 20160817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |