CN210457052U - Detection apparatus for hoist braking effect - Google Patents
Detection apparatus for hoist braking effect Download PDFInfo
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- CN210457052U CN210457052U CN201921409692.XU CN201921409692U CN210457052U CN 210457052 U CN210457052 U CN 210457052U CN 201921409692 U CN201921409692 U CN 201921409692U CN 210457052 U CN210457052 U CN 210457052U
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Abstract
The utility model relates to a detection apparatus for hoist engine braking effect relates to hydraulic engineering and detects technical field, including the hoist engine, the hoist engine includes the support, including a motor, an end cap, a controller, and a cover plate, the reduction gear, transmission assembly between axis of rotation and reduction gear and the axis of rotation, the axis of rotation rotates to be connected on the support, the winding in the axis of rotation has wire rope, one side that lies in wire rope in the axis of rotation has a cylindrical gear through the key-type connection, the number of teeth of cylindrical gear is greater than 20 teeth, axis of rotation and cylindrical gear's outer end is provided with the protective housing, the protective housing is located the fixed magnetoelectric sensor that is provided with on the inner wall directly over the cylindrical gear, magnetoelectric sensor is connected to on the intelligent tachometer that is used for detecting the distance that the braking produced or the angle that.
Description
Technical Field
The utility model relates to a hydraulic engineering detects technical field, in particular to detection device of hoist engine braking effect.
Background
A winch, a light and small hoisting device for hoisting or pulling heavy objects by winding a steel wire rope or a chain on a winding drum, which is also called a winch. The hoist can drag the heavy object vertically, horizontally or obliquely. The winding machine is divided into a manual winding machine, an electric winding machine and a hydraulic winding machine. Electric winches are now the main. Can be used independently, can also be used as a component part in machinery such as hoisting, road building, mine hoisting and the like, and is widely applied due to simple operation, large rope winding amount and convenient displacement. The lifting device is mainly applied to material lifting or flat dragging of buildings, hydraulic engineering, forestry, mines, wharfs and the like.
When the winch is used for lifting the gate in hydraulic engineering, the working condition of a motor brake of the winch is directly related to the safety of opening and closing the gate, so that the detection of the working condition of the motor of the winch is very important, and once abnormality is found, a warning signal can be sent to a control system by detecting the working condition of the motor brake, so that the safety and the reliability of the operation of the gate are ensured, and a detection device for the braking effect of the winch is required to be designed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a detection device of hoist engine braking effect, its operating condition through detecting the hoist engine motor to ensure the safe and reliable of gate.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a detection apparatus for hoist engine braking effect, includes the hoist engine, the hoist engine includes support, motor, reduction gear, axis of rotation and the transmission assembly between reduction gear and the axis of rotation, the axis of rotation rotates and connects on the support, epaxial winding of rotation has wire rope, one side that lies in wire rope in the axis of rotation has a spur gear through the key-type connection, spur gear's number of teeth is greater than 20 teeth, axis of rotation and spur gear's outer end is provided with the protective housing, the protective housing is located the fixed magnetoelectric sensor that is provided with on the inner wall directly over the spur gear, be connected with the electric wire on the magnetoelectric sensor, the other end of electric wire is connected to on.
Through adopting above-mentioned technical scheme, through set up cylindrical gear and set up magnetoelectric sensor on the protecting crust in the axis of rotation, make the internal coil of cylindrical gear tooth pair magnetoelectric sensor cut, thereby obtain pulse signal according to the electromagnetic induction phenomenon, it will produce Z pulse signal to be provided with Z gear on the cylindrical gear, thereby the frequency F of the pulse of demonstration on the intelligent tachometer = (n/60) × Z, n is the rotational speed of pivot, the number of teeth of cylindrical gear is greater than 20 the words of tooth, pulse signal that cylindrical gear cutting magnetoelectric sensor produced is more stable, thereby the rotational speed n of pivot is located, reachd the motor and lose electricity back axis of rotation pivoted angle according to pivot rotational speed n, thereby judge the braking effect of motor.
The utility model discloses further set up to: the number of teeth of the cylindrical gear is 60.
Through adopting above-mentioned technical scheme, set up to 60 through the number of teeth with cylindrical gear to pulse frequency F is the rotational speed n of pivot promptly, makes more simple and convenient the derivation pivot rotational speed of measurement personnel, thereby judges the braking effect of motor after the motor loses the electricity.
The utility model discloses further set up to: the shortest distance between the magnetoelectric sensor and the top end of the gear tooth of the cylindrical gear is set to be 1.5-2.5 mm.
Through adopting above-mentioned technical scheme, set up to 1.5-2.5mm through the shortest distance with between magnetoelectric sensor and the cylindrical gear tooth top for cylindrical gear's gear is better to magnetoelectric sensor's cutting effect, and the pulse signal that produces is more stable, and the frequency that shows is more accurate on the intelligent tachometer, thereby can reachd more accurate pivot rotational speed n, makes measurement personnel's judgement also more accurate.
The utility model discloses further set up to: the intelligent tachometer adopts an SZC series intelligent tachometer.
By adopting the technical scheme, the output signal of the SZC series intelligent tachometer is stable, the rotating speed measurement precision is high, the rotation speed can reach +/-1 revolution, the rotating speed measurement range is large, and the rotation speed can be measured from 0-9999 revolution, so that the rotating speed obtained by a worker is more accurate, and the judgment of the braking effect of the motor by the worker is facilitated.
The utility model discloses further set up to: the outer end cover of electric wire is equipped with the electric wire protective sheath of protection electric wire.
Through adopting above-mentioned technical scheme, through setting up the electric wire protective sheath for the electric wire can obtain fine protection, thereby has reduced the damage of wind-blown sunshine to the electric wire.
The utility model discloses further set up to: the transmission assembly comprises a driving gear connected to an output shaft of the speed reducer in a key mode, a driven gear is meshed to the driving gear, and the driven gear is connected to the rotating shaft in a key mode.
Through adopting above-mentioned technical scheme, drive gear passes through two driving gears and driven gear that mesh mutually, and after the motor loses the electricity, two gears can be fine braking, have improved the braking effect of motor.
To sum up, the utility model discloses following beneficial effect has:
① through set up the cylindrical gear in the axis of rotation and set up magnetoelectric sensor on the protecting crust, make the internal coil of cylindrical gear tooth pair magnetoelectric sensor cut, thereby obtain pulse signal according to the electromagnetic induction phenomenon, it will produce Z pulse signal to be provided with Z gear on the cylindrical gear, thereby the frequency F of the pulse that shows on the intelligence tachometer = (n/60) × Z, n is the rotational speed of pivot, it loses the pivoted angle of electric back axis of rotation to reach the motor according to pivot rotational speed n, set up to 60 through the number of teeth with cylindrical gear, thereby pulse frequency F is the rotational speed n of pivot promptly, make the measuring personnel can be more simple and convenient obtain the pivot rotational speed, thereby judge the braking effect of motor after losing electricity.
Drawings
Fig. 1 is a schematic structural diagram (partially exploded and partially cross-sectional) of the present invention.
In the figure, 1, a bracket; 2. a motor; 3. a speed reducer; 4. a rotating shaft; 5. a wire rope; 6. a transmission assembly; 7. a driving gear; 8. a driven gear; 9. a housing; 10. a cylindrical gear; 11. a protective shell; 12. a magnetoelectric sensor; 13. an electric wire; 14. an intelligent tachometer; 15. wire protective sleeve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The utility model provides a detection apparatus for hoist brake effect, as shown in figure 1, includes support 1, and the upper end of support 1 is fixed and is provided with motor 2, is connected with reduction gear 3 in motor 2's the pivot, and reduction gear 3 fixes on support 1. One side that lies in motor 2 and reduction gear 3 on support 1 is provided with axis of rotation 4, and axis of rotation 4 and support 1 rotate to be connected, and the winding has wire rope 5 on the axis of rotation 4. A transmission assembly 6 connecting the rotating shaft 4 and the speed reducer 3 is arranged between the rotating shaft 4 and the speed reducer 3. The transmission assembly 6 comprises a driving gear 7 fixedly arranged on an output shaft of the speed reducer 3, a driven gear 8 is meshed on the driving gear 7, the driven gear 8 is fixed on the rotating shaft 4 through key connection, a shell 9 is arranged at the outer ends of the driving gear 7 and the driven gear 8, and the shell 9 is fixed on the support 1.
As shown in fig. 1, a cylindrical gear 10 is fixed to one side of the rotating shaft 4 on the steel wire rope 5 through key connection, and the number of teeth of the cylindrical gear 10 is 60. A semicircular protective shell 11 is arranged at the outer ends of the rotating shaft 4 and the cylindrical gear 10, the protective shell 11 is fixed on the support 1, a magnetoelectric sensor 12 is fixedly arranged on the inner wall of the protective shell 11, which is positioned right above the cylindrical gear 10, the magnetoelectric sensor 12 adopts an HEWK-01 sensor, the shortest distance between the magnetoelectric sensor 12 and the tooth top end of the cylindrical gear 10 is set to be 1.5-2.5mm, and the cutting effect is best when the shortest distance between the magnetoelectric sensor 12 and the tooth top end of the cylindrical gear 10 is set to be 2 mm. The magnetoelectric sensor 12 is connected with an electric wire 13, the other end of the electric wire 13 is connected with an intelligent tachometer 14, and the intelligent tachometer 14 adopts an SZC series intelligent tachometer 14. The outer end of the electric wire 13 is provided with an electric wire protective cover 15 which protects the electric wire 13.
The utility model discloses a theory of operation: when the motor 2 loses power, the number of the cylindrical gear 10 which rotates is detected, when the cylindrical gear 10 rotates, a coil in the magnetoelectric sensor 12 is cut by a gear on the cylindrical gear 10, a pulse signal is generated according to an electromagnetic induction phenomenon, the number of teeth of the cylindrical gear 10 is Z, Z voltage pulse signals are generated when the shaft rotates for one circle, the rotating speed of the shaft is n, the frequency F of the pulse signal is F = (n/60) = Z, and the frequency F is F = n because the number of Z is 60, so that the frequency displayed on the intelligent pulse meter is the rotating speed of the rotating shaft 4, and whether the rotating shaft 4 stops working is judged according to the rotating speed of the motor 2 after the power is lost.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a detection apparatus for hoist engine braking effect, includes the hoist engine, the hoist engine includes transmission assembly (6) between support (1), motor (2), reduction gear (3), axis of rotation (4) and reduction gear (3) and axis of rotation (4), its characterized in that: rotation axis (4) rotate to be connected on support (1), the winding on rotation axis (4) has wire rope (5), one side that lies in wire rope (5) on rotation axis (4) has one cylindrical gear (10) through the key connection, the number of teeth of cylindrical gear (10) is greater than 20 teeth, the outer end of rotation axis (4) and cylindrical gear (10) is provided with protective housing (11), protective housing (11) are located the fixed magnetoelectric sensor (12) that is provided with on the inner wall directly over cylindrical gear (10), magnetoelectric sensor (12) are connected to on intelligent tachometer (14) through electric wire (13).
2. The winding engine braking effect detection device according to claim 1, wherein: the number of teeth of the cylindrical gear (10) is 60.
3. The winding engine braking effect detection device according to claim 2, wherein: the shortest distance between the magnetoelectric sensor (12) and the tooth top end of the cylindrical gear (10) is set to be 1.5-2.5 mm.
4. The winding engine braking effect detection device according to claim 3, wherein: the intelligent tachometer (14) adopts an SZC series intelligent tachometer (14).
5. The winding engine braking effect detection device according to claim 1, wherein: the outer end of the electric wire (13) is sleeved with an electric wire protective sleeve (15) for protecting the electric wire (13).
6. The winding engine braking effect detection device according to claim 1, wherein: the transmission assembly (6) comprises a driving gear (7) which is connected to an output shaft of the speed reducer (3) in a key mode, a driven gear (8) is meshed on the driving gear (7), and the driven gear (8) is connected to the rotating shaft (4) in a key mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921409692.XU CN210457052U (en) | 2019-08-27 | 2019-08-27 | Detection apparatus for hoist braking effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921409692.XU CN210457052U (en) | 2019-08-27 | 2019-08-27 | Detection apparatus for hoist braking effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210457052U true CN210457052U (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921409692.XU Active CN210457052U (en) | 2019-08-27 | 2019-08-27 | Detection apparatus for hoist braking effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210457052U (en) |
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2019
- 2019-08-27 CN CN201921409692.XU patent/CN210457052U/en active Active
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