CN202442686U - Waterproof type cable lifting device - Google Patents
Waterproof type cable lifting device Download PDFInfo
- Publication number
- CN202442686U CN202442686U CN2012200880370U CN201220088037U CN202442686U CN 202442686 U CN202442686 U CN 202442686U CN 2012200880370 U CN2012200880370 U CN 2012200880370U CN 201220088037 U CN201220088037 U CN 201220088037U CN 202442686 U CN202442686 U CN 202442686U
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- housing
- magnetic sensor
- rotating shaft
- permanent magnet
- type cable
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Abstract
The utility model discloses a waterproof type cable lifting device. The waterproof type cable lifting device comprises a base, a bracket and a rotating device, wherein the bracket is arranged on the base, the rotating device comprises a rotating shaft and a measuring wheel, the rotating shaft is arranged on the bracket, and the measuring wheel is arranged on the rotating shaft; and the waterproof type cable lifting device further comprises a permanent magnet, a magnetic sensor, a first housing and a second housing, wherein the first housing is matched with the second housing in a sealed manner to form a magnetic sensor housing, an S-pole and an N-pole of the permanent magnet are vertical to the rotating shaft of the rotating device, the magnetic sensor housing is fixed on the bracket, the permanent magnet is arranged on the rotating device, and the magnetic sensor is arranged in the magnetic sensor housing. According to the utility model, the rotating device is completely separated from an angular displacement measuring device, good watertight and airtight effects are achieved, the problems of liquid leakage and failure of the angular displacement measuring device caused by poor sealing performance between the angular displacement measuring device and the rotating device are avoided in a use process, the stability of the sensor is greatly improved, the service life of the sensor is greatly prolonged, and the waterproof type cable lifting device is applicable to a severe environment for usage.
Description
Technical field
The utility model relates to a kind of cable lifting gear that is used for linear measure longimetry and engineering detecting, especially a kind of water proof type cable lifting gear.
Background technology
The cable lifting gear is used for depth survey, is widely used in a plurality of fields such as the automatic pile foundation detection of sound wave transmission method, pouring pile hole quality testings, and be a kind of continuous straight-line displacement measurement mechanism commonly used.Its principle of work is following:
With cable on measuring wheel; Cable and measuring wheel are synchronized with the movement; The rectilinear motion of cable drives measuring wheel and carries out circular motion; The displacement Δ L of cable converts the angular displacement Δ β of measuring wheel into, and the measuring wheel radius is a fixed value, can be obtained the straight-line displacement Δ L of cable by its angular displacement of sensor measurement.Its drive connection is suc as formula (1).
ΔL＝Δβ*2πR/360 (1)
In the formula:
Δ L---cable straight-line displacement;
Δ β---measuring wheel angle displacement;
R---measuring wheel wire casing radius.
In traditional cable lifting gear, generally use optical rotary encoder as measuring wheel angle displacement measurement sensor, its theoretical life-span is longer, and precision is higher; But the rotation of measuring wheel must directly be transferred to optical rotary encoder by transmission shaft, and the axle that drives optical rotary encoder rotates, and just can obtain measurement result.When under conditions such as water, oil, chemical liquid, gas are arranged, measuring, rotary encoder is difficult to isolate fully with test environment, even adopt seal approach; Under the rotation work condition of transmission shaft; Also be difficult to the sealing effectiveness that reaches good, and complex structure, the life-span is short; When air-proof condition is destroyed, will cause the destruction of rotary encoder.
The utility model content
The purpose of the utility model is to provide that a kind of reliability is high, the life-span is long, cost is low, be easy to the water proof type cable lifting gear making and use.
The utility model is realized above-mentioned technical purpose through following technical scheme.
A kind of water proof type cable lifting gear comprises: base, support, wheelwork; Said support is arranged on the base, and said wheelwork comprises rotating shaft, measuring wheel, and said rotating shaft is arranged on the support; Said measuring wheel is arranged in the rotating shaft, also comprises permanent magnet, Magnetic Sensor, first housing, second housing, and said first housing cooperates with second housing seal forms the Magnetic Sensor housing; Said Magnetic Sensor housing is fixed on the support; Said permanent magnet is arranged on the said wheelwork, and the S utmost point of said permanent magnet and the rotating shaft of the N utmost point and said wheelwork are perpendicular, and said Magnetic Sensor is arranged in the Magnetic Sensor housing.
Preferably, be provided with sealing rubber ring between said first housing and second housing.
Preferably, said permanent magnet is cylindrical.
Preferably, said permanent magnet is arranged in the said rotating shaft.
Preferably, said permanent magnet is embedded in the center of said rotating shaft one end, the center of circle of the bottom surface of said cylindrical permanent magnet and the axis coinciding of said rotating shaft.
Preferably, the center of said Magnetic Sensor overlaps with the rotational symmetry center of said rotating shaft.
Preferably, it is inboard that said Magnetic Sensor is arranged on first housing, and first housing is near support.
The described water proof type cable of the utility model lifting gear places a permanent magnet in the rotating shaft, rotates with rotating shaft, converts mechanical rotation into the magnetic field angle rotation; Magnetic Sensor is sealed in the Magnetic Sensor housing, utilizes the Hall effect between permanent magnet and the Magnetic Sensor, realize the angle displacement measurement function.In the utility model, utilize magnetic field induction to realize the measurement of angular displacement, realized isolating fully between wheelwork and the angle displacement measurement device; Watertight, airtight effect are good; In use, avoided because poor sealing between angle displacement measurement device and the wheelwork, and caused the problem of Angular Displacement Detecting device feed liquor, inefficacy; Increased substantially the stability and the serviceable life of sensor, helped using under the rugged surroundings.And simple in structure, be easy to assembling, small, cost is low.
In sum; The utility model adopts Magnetic Sensor to substitute original rotary encoder; The rotation and the survey sensor of measuring wheel are kept apart fully; Adopt non-contact measurement, reach the purpose of anti-fully liquid (water, oil, chemical liquid), gas-tight, realized high reliability, long-life, low cost, be easy to make and the ability used fully with the cable lifting gear of environment isolation.
Description of drawings
Fig. 1 is the said water proof type cable of a utility model lifting gear cross-sectional view.
Description of reference numerals is following:
The 1-measuring wheel, 2-rotating shaft, 3-support, 4-base, 5-permanent magnet, 6-first housing, 7-second housing, 8-Magnetic Sensor, 9-cable.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is further described, but the protection domain of the utility model is not limited to this.
As shown in Figure 1, the said water proof type cable of the utility model lifting gear comprises: base 4, support 3; Wheelwork, said support 3 is arranged on the base 4, and said wheelwork comprises rotating shaft 2; Measuring wheel 1, said rotating shaft 2 is arranged on the support 3, and said measuring wheel 1 is arranged in the rotating shaft 2; It also comprises permanent magnet 5, Magnetic Sensor 8, first housing 6, second housing 7; Said first housing 6 and second housing 7 are sealed and matched and form the Magnetic Sensor housing, and said Magnetic Sensor housing is fixed on the support 3, and said permanent magnet 5 is arranged on said wheelwork; The S utmost point of said permanent magnet 5 and the rotating shaft of the N utmost point and said wheelwork are perpendicular, and said Magnetic Sensor 8 is arranged in the Magnetic Sensor housing.
In the utility model, said Magnetic Sensor 8 is made up of two mutual vertically disposed Hall elements, link to each other between the center contact point of said two Hall elements, and be that two Hall elements provide electric current by same power supply.Two Hall elements of putting setting that hang down each other can be responded to the magnetic-field component on two orthogonal directions in one plane.When the permanent magnet in being arranged on wheelwork rotates with wheelwork; The magnetic field that in a certain plane, is produced by said permanent magnet also can change; Magnetic Sensor can detect the changes of magnetic field around the permanent magnet, pass through processing circuit processes then after, promptly obtain the angular displacement of wheelwork.At this moment, Magnetic Sensor and permanent magnet combine promptly formed an angular displacement sensor.
In lifting process, cable 9 through measuring wheel 1, and drives measuring wheel 1 and rotating shaft 2 is rotated in the process that promotes, and through detecting the angular displacement of wheelwork, i.e. the angular displacement of measuring wheel 1 or rotating shaft 2 just can calculate the length of the cable that promotes 9 indirectly.The described water proof type cable of the utility model lifting gear places a permanent magnet 5 in the rotating shaft 2, with rotating shaft 2 rotations, converts mechanical rotation into the magnetic field angle rotation; Magnetic Sensor 8 is sealed in the Magnetic Sensor housing, utilizes the Hall effect between permanent magnet 5 and the Magnetic Sensor 8, realize the angle displacement measurement function.In the utility model; Be to utilize magnetic field induction to realize the measurement of angular displacement, realized between rotating shaft 2 and the angle displacement measurement device isolating fully that watertight, airtight protection effect are good; Avoided in use causing poor sealing between angular displacement wheelwork and the measuring wheel 1; The problem that causes feed liquor, inefficacy has increased substantially the stability and the serviceable life of Magnetic Sensor 8, helps the cable lifting gear and under the rugged surroundings that have water or other liquid to exist, uses.The described water proof type cable of the utility model lifting gear is being tested in the water logging environment fully, and experimental result shows that the described water proof type cable of the utility model lifting gear has the excellent waterproof effect.
In the utility model,, further, between said first housing 6 and second housing 7, be provided with sealing rubber ring in order to improve the sealing of said Magnetic Sensor housing.
In the utility model, said permanent magnet 5 is preferably columniform permanent magnet 5.The optimum seeking site of said permanent magnet 5 on wheelwork is in the said rotating shaft 2, perhaps the center of rotating shaft 2 one ends, the center of circle of the bottom surface of said columniform permanent magnet 5 and the axis coinciding of said rotating shaft.Preferably, said Magnetic Sensor 8 is arranged on first housing, 6 inboards, the Magnetic Sensor housing is being fixed on 4 last times of base, and first housing 6 is near support 3.The center of said Magnetic Sensor 8 overlaps with the rotational symmetry center of said rotating shaft 2.
Above embodiment is merely indivedual embodiment of the utility model; Be not the exhaustive of all embodiments of the utility model; So the utility model is not limited to above-mentioned embodiment; Under the situation of the flesh and blood that does not deviate from the utility model, any modification that it may occur to persons skilled in the art that, improvement, replacement all belong to the protection domain of the utility model.
Claims (7)
1. a water proof type cable lifting gear comprises: base (4), support (3), wheelwork; Said support (3) is arranged on the base (4), and said wheelwork comprises rotating shaft (2), measuring wheel (1), and said rotating shaft (2) is arranged on the support (3); Said measuring wheel (1) is arranged in the rotating shaft (2); It is characterized in that, also comprise permanent magnet (5), Magnetic Sensor (8), first housing (6), second housing (7), said first housing (6) is sealed and matched with second housing (7) and forms the Magnetic Sensor housing; Said Magnetic Sensor housing is fixed on the support (3); Said permanent magnet (5) is arranged on the said wheelwork, and the S utmost point of said permanent magnet (5) and the rotating shaft of the N utmost point and said wheelwork are perpendicular, and said Magnetic Sensor (8) is arranged in the Magnetic Sensor housing.
2. water proof type cable lifting gear according to claim 1 is characterized in that, is provided with sealing rubber ring between said first housing (6) and second housing (7).
3. water proof type cable lifting gear according to claim 2 is characterized in that said permanent magnet (5) is cylindrical.
4. water proof type cable lifting gear according to claim 3 is characterized in that said permanent magnet (5) is arranged in the said rotating shaft (2).
5. water proof type cable lifting gear according to claim 3; It is characterized in that; Said permanent magnet (5) is embedded in the center of said rotating shaft (2) one ends, the center of circle of said columniform permanent magnet (5) bottom surface and the axis coinciding of said rotating shaft (2).
6. according to claim 4 or 5 described water proof type cable lifting gears, it is characterized in that the center of said Magnetic Sensor (8) overlaps with the rotational symmetry center of said rotating shaft (2).
7. water proof type cable lifting gear according to claim 6 is characterized in that said Magnetic Sensor (8) is arranged on the inboard of first housing (6), and said first housing (6) is near support (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200880370U CN202442686U (en) | 2012-03-09 | 2012-03-09 | Waterproof type cable lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200880370U CN202442686U (en) | 2012-03-09 | 2012-03-09 | Waterproof type cable lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202442686U true CN202442686U (en) | 2012-09-19 |
Family
ID=46824130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200880370U Withdrawn - After Issue CN202442686U (en) | 2012-03-09 | 2012-03-09 | Waterproof type cable lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202442686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620647A (en) * | 2012-03-09 | 2012-08-01 | 北京智博联科技有限公司 | Waterproof type cable lifting device |
-
2012
- 2012-03-09 CN CN2012200880370U patent/CN202442686U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620647A (en) * | 2012-03-09 | 2012-08-01 | 北京智博联科技有限公司 | Waterproof type cable lifting device |
| CN102620647B (en) * | 2012-03-09 | 2014-08-27 | 北京智博联科技有限公司 | Waterproof type cable lifting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120919 Effective date of abandoning: 20140827 |
|
| RGAV | Abandon patent right to avoid regrant |