CN112747853A - Elevator traction force detection equipment and detection method thereof - Google Patents
Elevator traction force detection equipment and detection method thereof Download PDFInfo
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- CN112747853A CN112747853A CN202110124173.4A CN202110124173A CN112747853A CN 112747853 A CN112747853 A CN 112747853A CN 202110124173 A CN202110124173 A CN 202110124173A CN 112747853 A CN112747853 A CN 112747853A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0037—Performance analysers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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Abstract
The invention belongs to the technical field of elevators, and particularly relates to elevator traction force detection equipment and a detection method thereof. The elevator traction force detection equipment and the detection method thereof can measure traction wheels under different rope sheave arrangement structures by arranging the guide device, can change wrap angles by increasing the number of the guide wheels on the horizontal moving device, can change balance coefficients, can realize the adjustment of the wrap angle phi from 100 degrees to 180 degrees by moving the horizontal moving device integrally, and solve the technical problems that the existing detection device equipment is too complicated, the installation process is complex, only one balance coefficient can be detected, and errors are easily generated in the detection process, wherein the adjustment theory is that the included angle C is changed along with the movement of the horizontal moving device, so that the wrap angle phi is changed, and the detection of the elevator traction force under the conditions of different wrap angles phi or different rope sheave structures can be detected.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to elevator traction force detection equipment and a detection method thereof.
Background
An elevator is a motor-powered vertical lift equipped with a box-like pod for carrying persons or goods in a multi-story building and also of the step type, with tread plates mounted for continuous travel on a track, commonly known as an escalator or a moving sidewalk, serving a fixed lifting device for a given floor, and having a cage which runs between at least two vertical rows of rigid guide rails, the cage being dimensioned and configured to facilitate the passage of passengers or the loading and unloading of goods.
The vertical lift elevator mainly comprises a traction machine, a guide rail, a counterweight, a safety device, a signal control system, a lift car, a hoistway door and the like, usually, steel wire rope friction transmission is adopted, the steel wire rope bypasses a traction sheave, two ends of the steel wire rope are respectively connected with the lift car and a balance weight, a motor drives the traction sheave to lift the lift car, the detection of the traction force is one of important parameters for manufacturing the elevator, the existing detection device is excessively complicated in equipment and complex in installation process, only one balance coefficient can be detected, and errors are easily generated in the detection process.
Disclosure of Invention
The invention provides elevator traction force detection equipment and a detection method thereof based on the technical problems that the existing detection device is too complicated in equipment and complex in installation process, only one balance coefficient can be detected, and errors are easily generated in the detection process.
The invention provides elevator traction force detection equipment and a detection method thereof, wherein the elevator traction force detection equipment comprises a support frame (1), a traction device (2), a car simulation device (3), a counterweight simulation device (4), a guide device (5), a traction rope (6) and a controller (7), wherein the support frame (1) is of a frame structure;
the traction equipment (2) is fixed at the top of the support frame (1), and a traction wheel (21) is arranged on the traction equipment (2);
the car simulation device (3) and the counterweight simulation device (4) are fixed at the bottom of the support frame (1) and are positioned at two sides of the traction equipment (2); the car simulator (3) and the counterweight simulator (4) can apply constant force and keep vertical movement;
the guide device (5) is positioned between the traction equipment (2) and the counterweight simulation device (4), is adjustably connected to the support frame (1) in the horizontal direction, and comprises a guide groove (52), a first guide wheel (51) and a horizontal moving device (53); the first guide wheel (51) can move horizontally in the guide groove (52) under the pushing of a horizontal moving device (53) and is used for adjusting the wrap angle phi of the traction wheel (21);
two ends of the traction rope (6) are provided with two groups of rope clamping devices (11), and the traction rope sequentially bypasses the traction sheave (21) and the first guide wheel (51) from the end of the car simulation device (3) to reach the counterweight simulation device (4).
Preferably, the top of the car simulation device (3) is directly and fixedly connected with a group of rope clamping devices (11); the top of the counterweight simulating device (4) is directly and fixedly connected with the other group of rope clamping devices (11).
Through above-mentioned technical scheme, the power that bears when the real simulation elevator is worked, the data that reachs can be closest true scene, lets detect more effectively.
Preferably, a car top guide wheel (31) is arranged at the top of the car simulation device (3), a counterweight guide wheel (41) is arranged at the top of the counterweight simulation device (4), and the two groups of rope clamping devices (11) are fixed at the top of the support frame (1);
the traction rope (6) is led out from one group of rope clamping devices (11), sequentially bypasses the bottom of the car top guide wheel (31), the top of the traction wheel (21), the first guide wheel (51) and the bottom of the counterweight guide wheel (41), and reaches the other group of rope clamping devices (11).
Through above-mentioned technical scheme, set up the leading wheel, can be abundant carry out the direction conveying to every haulage rope 6, strive for to accomplish to be close the real scene of elevator operation.
Preferably, a fourth guide wheel (14) is arranged between the heavy guide wheel (41) and the first guide wheel (51);
the traction rope (6) is led out from one group of rope clamping devices (11), sequentially bypasses the bottom of the car top guide wheel (31), the top of the traction wheel (21), the bottom of the first guide wheel (51), the top of the fourth guide wheel (14) and the bottom of the counterweight guide wheel (41), and reaches the other group of rope clamping devices (11).
Preferably, the car simulator (3) and the counterweight simulator (4) are provided with two groups;
the traction rope (6) is led out from one group of rope clamping devices (11), sequentially bypasses the bottoms of the two car top guide wheels (31), the top of the traction wheel (21), the first guide wheel (51) and the bottoms of the two counterweight guide wheels (42), and reaches the other group of rope clamping devices (11).
Preferably, a second guide wheel (12) is further arranged between the two groups of car simulation devices (3); a third guide wheel (13) is also arranged between the two groups of counterweight simulation devices (4);
the second guide wheel (12) and the third guide wheel (13) are positioned at the top of the support frame (1);
the traction rope (6) is led out from one group of rope clamping devices (11), sequentially bypasses the bottom of one car top guide wheel (31), the top of the second guide wheel (12), the bottom of the other car top guide wheel (31), the top of the traction wheel (21), the first guide wheel (51), the bottom of one counterweight guide wheel (32), the top of the third guide wheel (13) and the bottom of the other counterweight guide wheel (32), and reaches the other group of rope clamping devices (11).
Preferably, the rope clamping device (11) comprises a wedge sleeve (1101), a nut (1102), a buffer spring (1103) and an adjusting sleeve (1104) inside, one end of the hauling rope (6) sequentially passes through one surface of the wedge sleeve (1101), the adjusting sleeve (1104) and the buffer spring (1103) and is fixed through the nut (1102), and the nut (1102) can adjust the elastic force of the buffer spring (1103).
Through above-mentioned technical scheme, every haulage rope 6 of locking that can be fine.
Preferably, a rotation angle sensor is arranged on the surface of the traction sheave (21) close to the output shaft, a tension device, a tension sensor and a displacement sensor are arranged on the car simulator (3) and the counterweight simulator (4), and a distance sensor is arranged on the traction sheave (21) and the first guide sheave (51);
the rotation angle sensor, the tension sensor, the distance sensor and the displacement sensor are all connected with the controller (7).
Through above-mentioned technical scheme, set up a plurality of sensors, can obtain the most accurate data, supply that detection and analysis needs.
Preferably, a method for detecting an elevator traction force detecting apparatus includes the steps of;
s1: adjusting the wrap angle phi of the traction sheave; adjusting the position of a first guide wheel (51), and measuring the vertical distance La and the straight-line distance Lc between the traction wheel (21) and the first guide wheel (51) through a distance sensor, so that phi =90 ° + tan- 1La／Lc；
S2: applying the bearing capacity G1 of the elevator car and the gravity G2 of the counterweight and starting a traction machine; applying a bearing force G1 on the car simulator (3), the hoisting rope being subjected to a tension T1 such that T1= G1; applying a bearing force G2 on the counterweight simulation device (4), and subjecting the hoisting rope to a tension T2, so that T2= G2;
the traction equipment (2) starts to rotate for a time unit t, and a rotation angle theta is obtained after the time unit t is measured by the rotation sensor, the radius r and the acceleration a of the traction sheave (21) are used for obtaining the rotation line stroke L = r theta of the traction sheave (21);
the car simulator (3) and the counterweight simulator (4) move in opposite directions, and the displacement sensor measures the moving distance H of the car simulator (3);
s3: when H = L, the traction sheave (21) does not slide, and the traction force meets the requirement; when H < L, the traction sheave (21) slips, which indicates that the traction force is insufficient.
Preferably, in S3, when H = L, the drag force T = T1+ G1/G a- (T2 + G2/G a).
Preferably, the ratio of P1: adjusting the wrap angle phi of the traction sheave; adjusting the position of the first guide wheel (51) by distance sensingThe device measures the horizontal distance Lb between the traction wheel (21) and the first guide wheel (51) and the linear distance Lc, so that phi =90 DEG + tan-1La／Lc；
P2: applying the bearing capacity G1 of the elevator car and the gravity G2 of the counterweight and not starting the traction machine; applying a constant bearing force G1 on the car simulator (3); applying a varying bearing force G2 on the counterweight simulation device (4) and making G2 vary uniformly between 0-G1; the traction equipment (2) is not started, and the displacement sensor obtains whether the moving distance H changes or not;
p3: when H > 0, the traction force T of the traction sheave (21) is insufficient.
The beneficial effects of the invention are as follows:
1. the traction force can be detected by arranging a car simulator and a counterweight simulator, the left guide wheel of a traction wheel is set as a car full load or no load weight G1, the guide wheel on the right side of the traction wheel is set as a counterweight weight G2, after the traction machine is started to rotate for a time t unit, a rotation angle theta can be obtained by measuring through a rotation angle sensor, a rotating line stroke L of the traction wheel can be obtained through the radius and the angle theta of the traction wheel, a rotating line stroke H of the guide wheel on the right side of the traction wheel can be obtained through a displacement sensor, through calculation, when H = L, the traction wheel does not slide, when H is less than L, the traction wheel slides, the insufficient traction force is indicated, the traction force condition under different load weights can be tested, signals are judged through the sensor, and finally results and various change curves are output, the technical problems that the existing detection device is too complicated in equipment, complex in installation process, capable of detecting only one balance coefficient and prone to generating errors in the detection process are solved.
2. Through setting up guider, can measure the driving sheave under the rope sheave arrangement structure of difference, through the quantity that increases the leading wheel on the horizontal migration device, can change the cornerite, can change the balance coefficient, remove about through the horizontal migration device is whole, can realize that cornerite phi is by 100 to 180 adjustment, its adjustment theory is along with the removal of horizontal migration device, realize contained angle C and change, thereby cornerite phi changes, thereby can detect the detection of elevator traction force under the condition of different cornerites phi or different rope sheave structures, it is too loaded down with trivial details to have solved current detection device equipment, the installation is complicated, and can only detect a balance coefficient, the technical problem of the easy error that produces of testing process.
Drawings
Fig. 1 is an external perspective view of an embodiment of an elevator traction force detection apparatus and a detection method thereof according to the present invention;
FIG. 2 is a perspective view of an elevator traction force detecting apparatus and a detecting method thereof according to an embodiment of the present invention;
fig. 3 is a perspective view of an embodiment of an elevator traction force detection apparatus and a detection method thereof according to the present invention;
fig. 4 is a three-dimensional view of an embodiment of an elevator traction force detection apparatus and a detection method thereof according to the present invention;
fig. 5 is a four-perspective view of an embodiment of an elevator traction force detection apparatus and a detection method thereof according to the present invention;
fig. 6 is a five-dimensional view of an embodiment of an elevator traction force detection apparatus and a detection method thereof according to the present invention;
fig. 7 is a perspective view of a rope clamping device of the elevator traction force detection device and the detection method thereof provided by the invention;
fig. 8 is a front view of a traction machine structure of an elevator traction force detecting apparatus and a detecting method thereof according to the present invention.
In the figure: 1. a support frame; 11. a rope clamping device; 1101. a wedge sleeve; 1102. a nut; 1103. a buffer spring; 1104. adjusting the sleeve; 12. a second guide wheel; 13. a third guide wheel; 14. a fourth guide wheel; 2. a traction device; 21. a traction sheave; 3. a car simulation device; 31. a car top guide wheel; 4. a counterweight simulation device; 41. a counterweight guide wheel; 5. a guide device; 51. a first guide wheel; 52. a guide groove; 53. a horizontal moving device; 6. a hauling rope; 7. and a controller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1-2 and 7-8, an elevator traction force detection device and a detection method thereof comprise a support frame 1, wherein the support frame 1 is of a frame structure, and further comprises a traction device 2, a car simulation device 3, a counterweight simulation device 4, a guide device 5, a traction rope 6 and a controller 7;
the traction equipment 2 is fixed on the top of the support frame 1, and a traction wheel 21 is arranged on the traction equipment 2;
the car simulation device 3 and the counterweight simulation device 4 are fixed at the bottom of the support frame 1 and are positioned at two sides of the traction equipment 2; the car simulator 3 and the counterweight simulator 4 can apply constant force and keep vertical movement;
the guiding device 5 is positioned between the traction equipment 2 and the counterweight simulation device 4, is adjustably connected to the support frame 1 in the horizontal direction, and comprises a guiding groove 52, a first guiding wheel 51 and a horizontal moving device 53; the first guide wheel 51 can move horizontally in the guide groove 52 under the pushing of a horizontal moving device 53, and is used for adjusting the wrap angle phi of the traction wheel 21;
through setting up guider, can measure traction sheave 21 under the rope sheave arrangement structure of difference, through the quantity that increases the leading wheel on horizontal migration device 53, can change the scene in the elevator actual operation, change the balance coefficient, through the leading wheel removes about horizontal migration device 53 is whole, can realize wrap angle phi by the adjustment of 100 to 180, its adjustment theory is along with the removal of horizontal migration device 53, realize that contained angle C changes, thereby wrap angle phi changes, thereby can detect the detection of elevator traction force under the condition of different wrap angles phi or different rope sheave structures, it is too loaded down with trivial details to have solved current detection device equipment, the installation is complicated, and can only detect a balance coefficient, the technical problem of the easy production error of testing process.
Two ends of the traction rope 6 are provided with two groups of rope clamping devices 11, and the traction rope sequentially bypasses the traction sheave 21 and the first guide pulley 51 from the end of the car simulation device 3 to reach the counterweight simulation device 4.
Further, the top of the car simulation device 3 is directly and fixedly connected with a group of rope clamping devices 11; the top of the counterweight simulating device 4 is directly and fixedly connected with the other group of rope clamping devices 11.
The force born by the elevator during working is truly simulated, and the obtained data can be closest to a real scene, so that the detection is more effective.
Further, the rope clamping device 11 includes a wedge 1101, a nut 1102, a buffer spring 1103, and an adjusting sleeve 1104 therein, one end of the hoist rope 6 sequentially passes through one surface of the wedge 1101, the adjusting sleeve 1104, and the buffer spring 1103, and is fixed by the nut 1102, and the nut 1102 can adjust the elastic force of the buffer spring 1103.
Each hauling cable 6 can be well locked.
Furthermore, a rotation angle sensor is arranged on the surface of the traction sheave 21 close to the output shaft, a tension device, a tension sensor and a displacement sensor are arranged on the car simulation device 3 and the counterweight simulation device 4, and a distance sensor is arranged on the traction sheave 21 and the first guide sheave 51;
the rotation angle sensor, the tension sensor, the distance sensor and the displacement sensor are all connected with the controller 7.
A plurality of sensors are arranged, so that the most accurate data can be obtained for detection and analysis.
Further, a detection method of the elevator traction force detection equipment comprises the following steps;
s1: adjusting the wrap angle phi of the traction sheave; adjusting the position of the first guide wheel 51, and measuring the vertical distance La and the linear distance Lc between the traction wheel 21 and the first guide wheel 51 by a distance sensor, so that phi =90 ° + tan-1La／Lc；
S2: applying the bearing capacity G1 of the elevator car and the gravity G2 of the counterweight and starting a traction machine; applying a load bearing force G1 at the car simulator 3, the hoisting ropes are subjected to a tension T1 such that T1= G1; when the counterweight simulation device 4 exerts a bearing force G2, the hoisting rope is subjected to a tension T2, so that T2= G2;
the traction equipment 2 starts to rotate for a time unit t, and the rotation angle theta, the radius r of the traction sheave 21 and the acceleration a are obtained after the time unit t is measured by the rotation sensor, so that the rotation line stroke L = r theta of the traction sheave 21 is obtained;
the car simulator 3 and the counterweight simulator 4 move in opposite directions, and the displacement sensor measures the moving distance H of the car simulator 3;
s3: when H = L, the traction sheave 21 does not slip, and the traction force meets the requirement; when H < L, the traction sheave 21 slips, which indicates that the traction force is insufficient.
Further, in S3, when H = L, the drag force T = T1+ G1/G a- (T2 + G2/G a).
Further, P1: adjusting the wrap angle phi of the traction sheave; adjusting the position of the first guide wheel 51, and measuring the horizontal distance Lb and the linear distance Lc between the traction wheel 21 and the first guide wheel 51 by a distance sensor, so that phi =90 ° + tan-1La／Lc；
P2: applying the bearing capacity G1 of the elevator car and the gravity G2 of the counterweight and not starting the traction machine; applying a constant bearing force G1 on the car simulation device 3; applying a varying load bearing force G2 on the counterweight simulation device 4 and making G2 vary uniformly between 0-G1; the traction equipment 2 is not started, and the displacement sensor obtains whether the moving distance H changes or not;
p3: when H > 0, the traction force T of the traction sheave 21 is insufficient.
The car simulator and the counterweight simulator are arranged to detect traction force, a guide wheel on the left side of the traction sheave 21 is set as a car full load or no load weight G1, a guide wheel on the right side of the traction sheave 21 is set as a counterweight weight G2, the traction equipment 2 is started to rotate for a time unit, a rotation angle theta can be obtained through measurement of a rotation angle sensor, a line stroke L of rotation of the traction sheave 21 can be obtained through the radius and the angle theta of the traction sheave 21, a guide wheel rotation line stroke H on the right side of the traction sheave 21 can be obtained through a displacement sensor, through calculation, when H = L, the traction sheave 21 does not slide, when H is less than L, the traction sheave 21 slides, the traction force is insufficient, the traction force conditions under different weight conditions can be tested, a sensor judges signals, and finally outputs results and various change curves, the technical problems that the existing detection device is too complicated in equipment, complex in installation process, capable of detecting only one balance coefficient and prone to generating errors in the detection process are solved.
Example two
Referring to fig. 1-3 and 7-8, an elevator traction force detection device and a detection method thereof comprise a support frame 1, wherein the support frame 1 is of a frame structure, and further comprises a traction device 2, a car simulation device 3, a counterweight simulation device 4, a guide device 5, a traction rope 6 and a controller 7;
the traction equipment 2 is fixed on the top of the support frame 1, and a traction wheel 21 is arranged on the traction equipment 2;
the car simulation device 3 and the counterweight simulation device 4 are fixed at the bottom of the support frame 1 and are positioned at two sides of the traction equipment 2; the car simulator 3 and the counterweight simulator 4 can apply constant force and keep vertical movement;
the guiding device 5 is positioned between the traction equipment 2 and the counterweight simulation device 4, is adjustably connected to the support frame 1 in the horizontal direction, and comprises a guiding groove 52, a first guiding wheel 51 and a horizontal moving device 53; the first guide wheel 51 can move horizontally in the guide groove 52 under the pushing of a horizontal moving device 53, and is used for adjusting the wrap angle phi of the traction wheel 21;
through setting up guider, can measure traction sheave 21 under the rope sheave arrangement structure of difference, through the quantity that increases the leading wheel on horizontal migration device 53, can change the scene in the elevator actual operation, change the balance coefficient, through the leading wheel removes about horizontal migration device 53 is whole, can realize wrap angle phi by the adjustment of 100 to 180, its adjustment theory is along with the removal of horizontal migration device 53, realize that contained angle C changes, thereby wrap angle phi changes, thereby can detect the detection of elevator traction force under the condition of different wrap angles phi or different rope sheave structures, it is too loaded down with trivial details to have solved current detection device equipment, the installation is complicated, and can only detect a balance coefficient, the technical problem of the easy production error of testing process.
Two ends of the traction rope 6 are provided with two groups of rope clamping devices 11, and the traction rope sequentially bypasses the traction sheave 21 and the first guide pulley 51 from the end of the car simulation device 3 to reach the counterweight simulation device 4.
Further, the top of the car simulation device 3 is directly and fixedly connected with a group of rope clamping devices 11; the top of the counterweight simulating device 4 is directly and fixedly connected with the other group of rope clamping devices 11.
The force born by the elevator during working is truly simulated, and the obtained data can be closest to a real scene, so that the detection is more effective.
Furthermore, a car top guide wheel 31 is arranged at the top of the car simulation device 3, a counterweight guide wheel 41 is arranged at the top of the counterweight simulation device 4, and the two groups of rope clamping devices 11 are fixed at the top of the support frame 1;
the traction rope 6 is led out from one group of rope clamping devices 11, sequentially bypasses the bottom of the car top guide wheel 31, the top of the traction sheave 21, the first guide wheel 51 and the bottom of the counterweight guide wheel 41, and reaches the other group of rope clamping devices 11.
The guide wheels are arranged, so that each traction rope 6 can be guided and conveyed fully, and the aim of approaching to the real scene of elevator operation is fulfilled.
Further, the rope clamping device 11 includes a wedge 1101, a nut 1102, a buffer spring 1103, and an adjusting sleeve 1104 therein, one end of the hoist rope 6 sequentially passes through one surface of the wedge 1101, the adjusting sleeve 1104, and the buffer spring 1103, and is fixed by the nut 1102, and the nut 1102 can adjust the elastic force of the buffer spring 1103.
Each hauling cable 6 can be well locked.
Furthermore, a rotation angle sensor is arranged on the surface of the traction sheave 21 close to the output shaft, a tension device, a tension sensor and a displacement sensor are arranged on the car simulation device 3 and the counterweight simulation device 4, and a distance sensor is arranged on the traction sheave 21 and the first guide sheave 51;
the rotation angle sensor, the tension sensor, the distance sensor and the displacement sensor are all connected with the controller 7.
A plurality of sensors are arranged, so that the most accurate data can be obtained for detection and analysis.
Further, a detection method of the elevator traction force detection equipment comprises the following steps;
s1: adjusting the wrap angle phi of the traction sheave; adjusting the position of the first guide wheel 51, and measuring the vertical distance La and the linear distance Lc between the traction wheel 21 and the first guide wheel 51 by a distance sensor, so that phi =90 ° + tan-1La／Lc；
S2: applying the bearing capacity G1 of the elevator car and the gravity G2 of the counterweight and starting a traction machine; applying a load bearing force G1 at the car simulator 3, the hoisting ropes are subjected to a tension T1 such that T1= G1; when the counterweight simulation device 4 exerts a bearing force G2, the hoisting rope is subjected to a tension T2, so that T2= G2;
the traction equipment 2 starts to rotate for a time unit t, and the rotation angle theta, the radius r of the traction sheave 21 and the acceleration a are obtained after the time unit t is measured by the rotation sensor, so that the rotation line stroke L = r theta of the traction sheave 21 is obtained;
the car simulator 3 and the counterweight simulator 4 move in opposite directions, and the displacement sensor measures the moving distance H of the car simulator 3;
s3: when H = L, the traction sheave 21 does not slip, and the traction force meets the requirement; when H < L, the traction sheave 21 slips, which indicates that the traction force is insufficient.
Further, in S3, when H = L, the drag force T = T1+ G1/G a- (T2 + G2/G a).
Further, P1: adjusting the wrap angle phi of the traction sheave; adjusting the position of the first guide wheel 51, and measuring the horizontal distance Lb and the linear distance Lc between the traction wheel 21 and the first guide wheel 51 by a distance sensor, so that phi =90 ° + tan-1La／Lc；
P2: applying the bearing capacity G1 of the elevator car and the gravity G2 of the counterweight and not starting the traction machine; applying a constant bearing force G1 on the car simulation device 3; applying a varying load bearing force G2 on the counterweight simulation device 4 and making G2 vary uniformly between 0-G1; the traction equipment 2 is not started, and the displacement sensor obtains whether the moving distance H changes or not;
p3: when H > 0, the traction force T of the traction sheave 21 is insufficient.
The car simulator and the counterweight simulator are arranged to detect traction force, a guide wheel on the left side of the traction sheave 21 is set as a car full load or no load weight G1, a guide wheel on the right side of the traction sheave 21 is set as a counterweight weight G2, the traction equipment 2 is started to rotate for a time unit, a rotation angle theta can be obtained through measurement of a rotation angle sensor, a line stroke L of rotation of the traction sheave 21 can be obtained through the radius and the angle theta of the traction sheave 21, a guide wheel rotation line stroke H on the right side of the traction sheave 21 can be obtained through a displacement sensor, through calculation, when H = L, the traction sheave 21 does not slide, when H is less than L, the traction sheave 21 slides, the traction force is insufficient, the traction force conditions under different weight conditions can be tested, a sensor judges signals, and finally outputs results and various change curves, the technical problems that the existing detection device is too complicated in equipment, complex in installation process, capable of detecting only one balance coefficient and prone to generating errors in the detection process are solved.
EXAMPLE III
Referring to fig. 1-4 and fig. 7-8, an elevator traction force detection device and a detection method thereof include a support frame 1, wherein the support frame 1 is a frame structure, and further includes a traction device 2, a car simulation device 3, a counterweight simulation device 4, a guide device 5, a traction rope 6 and a controller 7;
the traction equipment 2 is fixed on the top of the support frame 1, and a traction wheel 21 is arranged on the traction equipment 2;
the car simulation device 3 and the counterweight simulation device 4 are fixed at the bottom of the support frame 1 and are positioned at two sides of the traction equipment 2; the car simulator 3 and the counterweight simulator 4 can apply constant force and keep vertical movement;
the guiding device 5 is positioned between the traction equipment 2 and the counterweight simulation device 4, is adjustably connected to the support frame 1 in the horizontal direction, and comprises a guiding groove 52, a first guiding wheel 51 and a horizontal moving device 53; the first guide wheel 51 can move horizontally in the guide groove 52 under the pushing of a horizontal moving device 53, and is used for adjusting the wrap angle phi of the traction wheel 21;
through setting up guider, can measure traction sheave 21 under the rope sheave arrangement structure of difference, through the quantity that increases the leading wheel on horizontal migration device 53, can change the scene in the elevator actual operation, change the balance coefficient, through the leading wheel removes about horizontal migration device 53 is whole, can realize wrap angle phi by the adjustment of 100 to 180, its adjustment theory is along with the removal of horizontal migration device 53, realize that contained angle C changes, thereby wrap angle phi changes, thereby can detect the detection of elevator traction force under the condition of different wrap angles phi or different rope sheave structures, it is too loaded down with trivial details to have solved current detection device equipment, the installation is complicated, and can only detect a balance coefficient, the technical problem of the easy production error of testing process.
Two ends of the traction rope 6 are provided with two groups of rope clamping devices 11, and the traction rope sequentially bypasses the traction sheave 21 and the first guide pulley 51 from the end of the car simulation device 3 to reach the counterweight simulation device 4.
Further, the top of the car simulation device 3 is directly and fixedly connected with a group of rope clamping devices 11; the top of the counterweight simulating device 4 is directly and fixedly connected with the other group of rope clamping devices 11.
The force born by the elevator during working is truly simulated, and the obtained data can be closest to a real scene, so that the detection is more effective.
Furthermore, a car top guide wheel 31 is arranged at the top of the car simulation device 3, a counterweight guide wheel 41 is arranged at the top of the counterweight simulation device 4, and the two groups of rope clamping devices 11 are fixed at the top of the support frame 1;
the traction rope 6 is led out from one group of rope clamping devices 11, sequentially bypasses the bottom of the car top guide wheel 31, the top of the traction sheave 21, the first guide wheel 51 and the bottom of the counterweight guide wheel 41, and reaches the other group of rope clamping devices 11.
The guide wheels are arranged, so that each traction rope 6 can be guided and conveyed fully, and the aim of approaching to the real scene of elevator operation is fulfilled.
Further, a fourth guide wheel 14 is arranged between the heavy guide wheel 41 and the first guide wheel 51;
the traction rope 6 is led out from one group of rope clamping devices 11, sequentially bypasses the bottom of the car top guide wheel 31, the top of the traction sheave 21, the bottom of the first guide wheel 51, the top of the fourth guide wheel 14 and the bottom of the counterweight guide wheel 41, and reaches the other group of rope clamping devices 11.
Further, the rope clamping device 11 includes a wedge 1101, a nut 1102, a buffer spring 1103, and an adjusting sleeve 1104 therein, one end of the hoist rope 6 sequentially passes through one surface of the wedge 1101, the adjusting sleeve 1104, and the buffer spring 1103, and is fixed by the nut 1102, and the nut 1102 can adjust the elastic force of the buffer spring 1103.
Each hauling cable 6 can be well locked.
Furthermore, a rotation angle sensor is arranged on the surface of the traction sheave 21 close to the output shaft, a tension device, a tension sensor and a displacement sensor are arranged on the car simulation device 3 and the counterweight simulation device 4, and a distance sensor is arranged on the traction sheave 21 and the first guide sheave 51;
the rotation angle sensor, the tension sensor, the distance sensor and the displacement sensor are all connected with the controller 7.
A plurality of sensors are arranged, so that the most accurate data can be obtained for detection and analysis.
Further, a detection method of the elevator traction force detection equipment comprises the following steps;
s1: adjusting the wrap angle phi of the traction sheave; adjusting the position of the first guide wheel 51, and measuring the vertical distance La and the linear distance Lc between the traction wheel 21 and the first guide wheel 51 by a distance sensor, so that phi =90 ° + tan-1La／Lc；
S2: applying the bearing capacity G1 of the elevator car and the gravity G2 of the counterweight and starting a traction machine; applying a load bearing force G1 at the car simulator 3, the hoisting ropes are subjected to a tension T1 such that T1= G1; when the counterweight simulation device 4 exerts a bearing force G2, the hoisting rope is subjected to a tension T2, so that T2= G2;
the traction equipment 2 starts to rotate for a time unit t, and the rotation angle theta, the radius r of the traction sheave 21 and the acceleration a are obtained after the time unit t is measured by the rotation sensor, so that the rotation line stroke L = r theta of the traction sheave 21 is obtained;
the car simulator 3 and the counterweight simulator 4 move in opposite directions, and the displacement sensor measures the moving distance H of the car simulator 3;
s3: when H = L, the traction sheave 21 does not slip, and the traction force meets the requirement; when H < L, the traction sheave 21 slips, which indicates that the traction force is insufficient.
Further, in S3, when H = L, the drag force T = T1+ G1/G a- (T2 + G2/G a).
Further, P1: adjusting the wrap angle phi of the traction sheave; adjusting the position of the first guide wheel 51, and measuring the horizontal distance Lb and the linear distance Lc between the traction wheel 21 and the first guide wheel 51 by a distance sensor, so that phi =90 ° + tan-1La／Lc；
P2: applying the bearing capacity G1 of the elevator car and the gravity G2 of the counterweight and not starting the traction machine; applying a constant bearing force G1 on the car simulation device 3; applying a varying load bearing force G2 on the counterweight simulation device 4 and making G2 vary uniformly between 0-G1; the traction equipment 2 is not started, and the displacement sensor obtains whether the moving distance H changes or not;
p3: when H > 0, the traction force T of the traction sheave 21 is insufficient.
The car simulator and the counterweight simulator are arranged to detect traction force, a guide wheel on the left side of the traction sheave 21 is set as a car full load or no load weight G1, a guide wheel on the right side of the traction sheave 21 is set as a counterweight weight G2, the traction equipment 2 is started to rotate for a time unit, a rotation angle theta can be obtained through measurement of a rotation angle sensor, a line stroke L of rotation of the traction sheave 21 can be obtained through the radius and the angle theta of the traction sheave 21, a guide wheel rotation line stroke H on the right side of the traction sheave 21 can be obtained through a displacement sensor, through calculation, when H = L, the traction sheave 21 does not slide, when H is less than L, the traction sheave 21 slides, the traction force is insufficient, the traction force conditions under different weight conditions can be tested, a sensor judges signals, and finally outputs results and various change curves, the technical problems that the existing detection device is too complicated in equipment, complex in installation process, capable of detecting only one balance coefficient and prone to generating errors in the detection process are solved.
Example four
Referring to fig. 1-5 and 7-8, an elevator traction force detection device and a detection method thereof include a support frame 1, wherein the support frame 1 is a frame structure, and further includes a traction device 2, a car simulation device 3, a counterweight simulation device 4, a guide device 5, a traction rope 6 and a controller 7;
the traction equipment 2 is fixed on the top of the support frame 1, and a traction wheel 21 is arranged on the traction equipment 2;
the car simulation device 3 and the counterweight simulation device 4 are fixed at the bottom of the support frame 1 and are positioned at two sides of the traction equipment 2; the car simulator 3 and the counterweight simulator 4 can apply constant force and keep vertical movement;
the guiding device 5 is positioned between the traction equipment 2 and the counterweight simulation device 4, is adjustably connected to the support frame 1 in the horizontal direction, and comprises a guiding groove 52, a first guiding wheel 51 and a horizontal moving device 53; the first guide wheel 51 can move horizontally in the guide groove 52 under the pushing of a horizontal moving device 53, and is used for adjusting the wrap angle phi of the traction wheel 21;
through setting up guider, can measure traction sheave 21 under the rope sheave arrangement structure of difference, through the quantity that increases the leading wheel on horizontal migration device 53, can change the scene in the elevator actual operation, change the balance coefficient, through the leading wheel removes about horizontal migration device 53 is whole, can realize wrap angle phi by the adjustment of 100 to 180, its adjustment theory is along with the removal of horizontal migration device 53, realize that contained angle C changes, thereby wrap angle phi changes, thereby can detect the detection of elevator traction force under the condition of different wrap angles phi or different rope sheave structures, it is too loaded down with trivial details to have solved current detection device equipment, the installation is complicated, and can only detect a balance coefficient, the technical problem of the easy production error of testing process.
Two ends of the traction rope 6 are provided with two groups of rope clamping devices 11, and the traction rope sequentially bypasses the traction sheave 21 and the first guide pulley 51 from the end of the car simulation device 3 to reach the counterweight simulation device 4.
Further, the top of the car simulation device 3 is directly and fixedly connected with a group of rope clamping devices 11; the top of the counterweight simulating device 4 is directly and fixedly connected with the other group of rope clamping devices 11.
The force born by the elevator during working is truly simulated, and the obtained data can be closest to a real scene, so that the detection is more effective.
Furthermore, a car top guide wheel 31 is arranged at the top of the car simulation device 3, a counterweight guide wheel 41 is arranged at the top of the counterweight simulation device 4, and the two groups of rope clamping devices 11 are fixed at the top of the support frame 1;
the traction rope 6 is led out from one group of rope clamping devices 11, sequentially bypasses the bottom of the car top guide wheel 31, the top of the traction sheave 21, the first guide wheel 51 and the bottom of the counterweight guide wheel 41, and reaches the other group of rope clamping devices 11.
The guide wheels are arranged, so that each traction rope 6 can be guided and conveyed fully, and the aim of approaching to the real scene of elevator operation is fulfilled.
Further, a fourth guide wheel 14 is arranged between the heavy guide wheel 41 and the first guide wheel 51;
the traction rope 6 is led out from one group of rope clamping devices 11, sequentially bypasses the bottom of the car top guide wheel 31, the top of the traction sheave 21, the bottom of the first guide wheel 51, the top of the fourth guide wheel 14 and the bottom of the counterweight guide wheel 41, and reaches the other group of rope clamping devices 11.
Further, two groups of the car simulation device 3 and the counterweight simulation device 4 are arranged;
the traction rope 6 is led out from one group of the rope clamping devices 11, sequentially bypasses the bottoms of the two car top guide wheels 31, the top of the traction sheave 21, the first guide wheel 51 and the bottoms of the two counterweight guide wheels 42, and reaches the other group of the rope clamping devices 11.
Further, the rope clamping device 11 includes a wedge 1101, a nut 1102, a buffer spring 1103, and an adjusting sleeve 1104 therein, one end of the hoist rope 6 sequentially passes through one surface of the wedge 1101, the adjusting sleeve 1104, and the buffer spring 1103, and is fixed by the nut 1102, and the nut 1102 can adjust the elastic force of the buffer spring 1103.
Each hauling cable 6 can be well locked.
Furthermore, a rotation angle sensor is arranged on the surface of the traction sheave 21 close to the output shaft, a tension device, a tension sensor and a displacement sensor are arranged on the car simulation device 3 and the counterweight simulation device 4, and a distance sensor is arranged on the traction sheave 21 and the first guide sheave 51;
the rotation angle sensor, the tension sensor, the distance sensor and the displacement sensor are all connected with the controller 7.
A plurality of sensors are arranged, so that the most accurate data can be obtained for detection and analysis.
Further, a detection method of the elevator traction force detection equipment comprises the following steps;
s1: adjusting the wrap angle phi of the traction sheave; adjusting the position of the first guide wheel 51, and measuring the vertical distance La and the linear distance Lc between the traction wheel 21 and the first guide wheel 51 by a distance sensor, so that phi =90 ° + tan-1La／Lc；
S2: applying the bearing capacity G1 of the elevator car and the gravity G2 of the counterweight and starting a traction machine; applying a load bearing force G1 at the car simulator 3, the hoisting ropes are subjected to a tension T1 such that T1= G1; when the counterweight simulation device 4 exerts a bearing force G2, the hoisting rope is subjected to a tension T2, so that T2= G2;
the traction equipment 2 starts to rotate for a time unit t, and the rotation angle theta, the radius r of the traction sheave 21 and the acceleration a are obtained after the time unit t is measured by the rotation sensor, so that the rotation line stroke L = r theta of the traction sheave 21 is obtained;
the car simulator 3 and the counterweight simulator 4 move in opposite directions, and the displacement sensor measures the moving distance H of the car simulator 3;
s3: when H = L, the traction sheave 21 does not slip, and the traction force meets the requirement; when H < L, the traction sheave 21 slips, which indicates that the traction force is insufficient.
Further, in S3, when H = L, the drag force T = T1+ G1/G a- (T2 + G2/G a).
Further, P1: adjusting the wrap angle phi of the traction sheave; adjusting the position of the first guide wheel 51, and measuring the horizontal distance Lb and the linear distance Lc between the traction wheel 21 and the first guide wheel 51 by a distance sensor, so that phi =90 ° + tan-1La／Lc；
P2: applying the bearing capacity G1 of the elevator car and the gravity G2 of the counterweight and not starting the traction machine; applying a constant bearing force G1 on the car simulation device 3; applying a varying load bearing force G2 on the counterweight simulation device 4 and making G2 vary uniformly between 0-G1; the traction equipment 2 is not started, and the displacement sensor obtains whether the moving distance H changes or not;
p3: when H > 0, the traction force T of the traction sheave 21 is insufficient.
The car simulator and the counterweight simulator are arranged to detect traction force, a guide wheel on the left side of the traction sheave 21 is set as a car full load or no load weight G1, a guide wheel on the right side of the traction sheave 21 is set as a counterweight weight G2, the traction equipment 2 is started to rotate for a time unit, a rotation angle theta can be obtained through measurement of a rotation angle sensor, a line stroke L of rotation of the traction sheave 21 can be obtained through the radius and the angle theta of the traction sheave 21, a guide wheel rotation line stroke H on the right side of the traction sheave 21 can be obtained through a displacement sensor, through calculation, when H = L, the traction sheave 21 does not slide, when H is less than L, the traction sheave 21 slides, the traction force is insufficient, the traction force conditions under different weight conditions can be tested, a sensor judges signals, and finally outputs results and various change curves, the technical problems that the existing detection device is too complicated in equipment, complex in installation process, capable of detecting only one balance coefficient and prone to generating errors in the detection process are solved.
EXAMPLE five
Referring to fig. 1-8, an elevator traction force detection device and a detection method thereof include a support frame 1, wherein the support frame 1 is a frame structure, and further includes a traction device 2, a car simulation device 3, a counterweight simulation device 4, a guiding device 5, a traction rope 6, and a controller 7;
the traction equipment 2 is fixed on the top of the support frame 1, and a traction wheel 21 is arranged on the traction equipment 2;
the car simulation device 3 and the counterweight simulation device 4 are fixed at the bottom of the support frame 1 and are positioned at two sides of the traction equipment 2; the car simulator 3 and the counterweight simulator 4 can apply constant force and keep vertical movement;
the guiding device 5 is positioned between the traction equipment 2 and the counterweight simulation device 4, is adjustably connected to the support frame 1 in the horizontal direction, and comprises a guiding groove 52, a first guiding wheel 51 and a horizontal moving device 53; the first guide wheel 51 can move horizontally in the guide groove 52 under the pushing of a horizontal moving device 53, and is used for adjusting the wrap angle phi of the traction wheel 21;
through setting up guider, can measure traction sheave 21 under the rope sheave arrangement structure of difference, through the quantity that increases the leading wheel on horizontal migration device 53, can change the scene in the elevator actual operation, change the balance coefficient, through the leading wheel removes about horizontal migration device 53 is whole, can realize wrap angle phi by the adjustment of 100 to 180, its adjustment theory is along with the removal of horizontal migration device 53, realize that contained angle C changes, thereby wrap angle phi changes, thereby can detect the detection of elevator traction force under the condition of different wrap angles phi or different rope sheave structures, it is too loaded down with trivial details to have solved current detection device equipment, the installation is complicated, and can only detect a balance coefficient, the technical problem of the easy production error of testing process.
Two ends of the traction rope 6 are provided with two groups of rope clamping devices 11, and the traction rope sequentially bypasses the traction sheave 21 and the first guide pulley 51 from the end of the car simulation device 3 to reach the counterweight simulation device 4.
Further, the top of the car simulation device 3 is directly and fixedly connected with a group of rope clamping devices 11; the top of the counterweight simulating device 4 is directly and fixedly connected with the other group of rope clamping devices 11.
The force born by the elevator during working is truly simulated, and the obtained data can be closest to a real scene, so that the detection is more effective.
Furthermore, a car top guide wheel 31 is arranged at the top of the car simulation device 3, a counterweight guide wheel 41 is arranged at the top of the counterweight simulation device 4, and the two groups of rope clamping devices 11 are fixed at the top of the support frame 1;
the traction rope 6 is led out from one group of rope clamping devices 11, sequentially bypasses the bottom of the car top guide wheel 31, the top of the traction sheave 21, the first guide wheel 51 and the bottom of the counterweight guide wheel 41, and reaches the other group of rope clamping devices 11.
The guide wheels are arranged, so that each traction rope 6 can be guided and conveyed fully, and the aim of approaching to the real scene of elevator operation is fulfilled.
Further, a fourth guide wheel 14 is arranged between the heavy guide wheel 41 and the first guide wheel 51;
the traction rope 6 is led out from one group of rope clamping devices 11, sequentially bypasses the bottom of the car top guide wheel 31, the top of the traction sheave 21, the bottom of the first guide wheel 51, the top of the fourth guide wheel 14 and the bottom of the counterweight guide wheel 41, and reaches the other group of rope clamping devices 11.
Further, two groups of the car simulation device 3 and the counterweight simulation device 4 are arranged;
the traction rope 6 is led out from one group of the rope clamping devices 11, sequentially bypasses the bottoms of the two car top guide wheels 31, the top of the traction sheave 21, the first guide wheel 51 and the bottoms of the two counterweight guide wheels 42, and reaches the other group of the rope clamping devices 11.
Further, a second guide wheel 12 is arranged between the two groups of the car simulation devices 3; a third guide wheel 13 is also arranged between the two groups of counterweight simulation devices 4;
the second guide wheel 12 and the third guide wheel 13 are positioned at the top of the support frame 1;
the traction rope 6 is led out from one group of rope clamping devices 11, and sequentially passes through the bottom of one car top guide wheel 31, the top of the second guide wheel 12, the bottom of the other car top guide wheel 31, the top of the traction sheave 21, the first guide wheel 51, the bottom of one counterweight guide wheel 32, the top of the third guide wheel 13 and the bottom of the other counterweight guide wheel 32 to reach the other group of rope clamping devices 11.
Further, the rope clamping device 11 includes a wedge 1101, a nut 1102, a buffer spring 1103, and an adjusting sleeve 1104 therein, one end of the hoist rope 6 sequentially passes through one surface of the wedge 1101, the adjusting sleeve 1104, and the buffer spring 1103, and is fixed by the nut 1102, and the nut 1102 can adjust the elastic force of the buffer spring 1103.
Each hauling cable 6 can be well locked.
Furthermore, a rotation angle sensor is arranged on the surface of the traction sheave 21 close to the output shaft, a tension device, a tension sensor and a displacement sensor are arranged on the car simulation device 3 and the counterweight simulation device 4, and a distance sensor is arranged on the traction sheave 21 and the first guide sheave 51;
the rotation angle sensor, the tension sensor, the distance sensor and the displacement sensor are all connected with the controller 7.
A plurality of sensors are arranged, so that the most accurate data can be obtained for detection and analysis.
Further, a detection method of the elevator traction force detection equipment comprises the following steps;
s1: adjusting the wrap angle phi of the traction sheave; adjusting the position of the first guide wheel 51 and by means of a distance sensorThe vertical distance of the traction sheave 21 from the first guide sheave 51 is measured as La and the linear distance as Lc, so that Φ =90 ° + tan-1La／Lc；
S2: applying the bearing capacity G1 of the elevator car and the gravity G2 of the counterweight and starting a traction machine; applying a load bearing force G1 at the car simulator 3, the hoisting ropes are subjected to a tension T1 such that T1= G1; when the counterweight simulation device 4 exerts a bearing force G2, the hoisting rope is subjected to a tension T2, so that T2= G2;
the traction equipment 2 starts to rotate for a time unit t, and the rotation angle theta, the radius r of the traction sheave 21 and the acceleration a are obtained after the time unit t is measured by the rotation sensor, so that the rotation line stroke L = r theta of the traction sheave 21 is obtained;
the car simulator 3 and the counterweight simulator 4 move in opposite directions, and the displacement sensor measures the moving distance H of the car simulator 3;
s3: when H = L, the traction sheave 21 does not slip, and the traction force meets the requirement; when H < L, the traction sheave 21 slips, which indicates that the traction force is insufficient.
Further, in S3, when H = L, the drag force T = T1+ G1/G a- (T2 + G2/G a).
Further, P1: adjusting the wrap angle phi of the traction sheave; adjusting the position of the first guide wheel 51, and measuring the horizontal distance Lb and the linear distance Lc between the traction wheel 21 and the first guide wheel 51 by a distance sensor, so that phi =90 ° + tan-1La／Lc；
P2: applying the bearing capacity G1 of the elevator car and the gravity G2 of the counterweight and not starting the traction machine; applying a constant bearing force G1 on the car simulation device 3; applying a varying load bearing force G2 on the counterweight simulation device 4 and making G2 vary uniformly between 0-G1; the traction equipment 2 is not started, and the displacement sensor obtains whether the moving distance H changes or not;
p3: when H > 0, the traction force T of the traction sheave 21 is insufficient.
The car simulator and the counterweight simulator are arranged to detect traction force, a guide wheel on the left side of the traction sheave 21 is set as a car full load or no load weight G1, a guide wheel on the right side of the traction sheave 21 is set as a counterweight weight G2, the traction equipment 2 is started to rotate for a time unit, a rotation angle theta can be obtained through measurement of a rotation angle sensor, a line stroke L of rotation of the traction sheave 21 can be obtained through the radius and the angle theta of the traction sheave 21, a guide wheel rotation line stroke H on the right side of the traction sheave 21 can be obtained through a displacement sensor, through calculation, when H = L, the traction sheave 21 does not slide, when H is less than L, the traction sheave 21 slides, the traction force is insufficient, the traction force conditions under different weight conditions can be tested, a sensor judges signals, and finally outputs results and various change curves, the technical problems that the existing detection device is too complicated in equipment, complex in installation process, capable of detecting only one balance coefficient and prone to generating errors in the detection process are solved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. An elevator traction force detection device comprises a support frame (1), wherein the support frame (1) is of a frame structure, and is characterized by further comprising a traction device (2), a car simulation device (3), a counterweight simulation device (4), a guide device (5), a traction rope (6) and a controller (7);
the traction equipment (2) is fixed at the top of the support frame (1), and a traction wheel (21) is arranged on the traction equipment (2);
the car simulation device (3) and the counterweight simulation device (4) are fixed at the bottom of the support frame (1) and are positioned at two sides of the traction equipment (2); the car simulator (3) and the counterweight simulator (4) can apply s1 s2 and keep moving vertically;
the guide device (5) is positioned between the traction equipment (2) and the counterweight simulation device (4), is adjustably connected to the support frame (1) in the horizontal direction, and comprises a guide groove (52), a first guide wheel (51) and a horizontal moving device (53);
the first guide wheel (51) can move horizontally in the guide groove (52) under the pushing of a horizontal moving device (53) and is used for adjusting the wrap angle phi of the traction wheel (21);
two ends of the traction rope (6) are provided with two groups of rope clamping devices (11), and the traction rope sequentially bypasses the traction sheave (21) and the first guide wheel (51) from the end of the car simulation device (3) to reach the counterweight simulation device (4).
2. The elevator traction force detecting apparatus according to claim 1, wherein: the top of the car simulation device (3) is directly and fixedly connected with a group of rope clamping devices (11); the top of the counterweight simulating device (4) is directly and fixedly connected with the other group of rope clamping devices (11).
3. The elevator traction force detecting apparatus according to claim 1, wherein: the top of the car simulation device (3) is provided with 31), the top of the counterweight simulation device (4) is provided with a counterweight guide wheel (41), and two groups of rope clamping devices (11) [ s3] [ s4] are fixed on the top of the support frame (1);
the traction rope (6) is led out from one group of rope clamping devices (11), sequentially bypasses the bottom of the car top guide wheel (31), the top of the traction wheel (21), the first guide wheel (51) and the bottom of the counterweight guide wheel (41), and reaches the other group of rope clamping devices (11).
4. The elevator traction force detecting apparatus according to claim 3, wherein: a fourth guide wheel (14) is arranged between the heavy guide wheel (41) and the first guide wheel (51);
the traction rope (6) is led out from one group of rope clamping devices (11), sequentially bypasses the bottom of the car top guide wheel (31), the top of the traction wheel (21), the bottom of the first guide wheel (51), the top of the fourth guide wheel (14) and the bottom of the counterweight guide wheel (41), and reaches the other group of rope clamping devices (11).
5. The elevator traction force detecting apparatus according to claim 3, wherein: the car simulation device (3) and the counterweight simulation device (4) are respectively provided with two groups;
the traction rope (6) is led out from one group of rope clamping devices (11), sequentially bypasses the bottoms of the two car top guide wheels (31), the top of the traction wheel (21), the first guide wheel (51) and the bottoms of the two counterweight guide wheels (42), and reaches the other group of rope clamping devices (11).
6. The elevator traction force detecting apparatus according to claim 5, wherein: a second guide wheel (12) is also arranged between the two groups of car simulation devices (3); a third guide wheel (13) is also arranged between the two groups of counterweight simulation devices (4);
the second guide wheel (12) and the third guide wheel (13) are positioned at the top of the support frame (1);
the traction rope (6) is led out from one group of rope clamping devices (11), sequentially bypasses the bottom of one car top guide wheel (31), the top of the second guide wheel (12), the bottom of the other car top guide wheel (31), the top of the traction wheel (21), the first guide wheel (51), the bottom of one counterweight guide wheel (32), the top of the third guide wheel (13) and the bottom of the other counterweight guide wheel (32), and reaches the other group of rope clamping devices (11).
7. The elevator traction force detecting apparatus according to claim 1, wherein: a rotation angle sensor is arranged on the surface of the traction sheave (21) close to the output shaft, a pulling force device, a pulling force sensor and a displacement sensor are arranged on the car simulation device (3) and the counterweight simulation device (4), and a distance sensor is arranged on the traction sheave (21) and the first guide sheave (51);
the rotation angle sensor, the tension sensor, the distance sensor and the displacement sensor are all connected with the controller (7).
8. The method for detecting an elevator traction force detecting apparatus according to claim 2, wherein: comprises the following steps;
s1: adjusting the wrap angle phi of the traction sheave; adjusting the position of a first guide wheel (51), and measuring the vertical distance La and the straight-line distance Lc between the traction wheel (21) and the first guide wheel (51) through a distance sensor, so that phi 1=90 DEG + tan-1La／Lc；
S2: applying the bearing capacity G1 of the elevator car and the gravity G2 of the counterweight and starting a traction machine; applying a bearing force G1 on the car simulator (3), the hoisting rope being subjected to a tension T1 such that T1= G1; applying a bearing force G2 on the counterweight simulation device (4), and subjecting the hoisting rope to a tension T2, so that T2= G2;
the traction equipment (2) starts to rotate for a time unit t, and a rotation angle theta is obtained after the time unit t is measured by the rotation sensor, the radius r and the acceleration a of the traction sheave (21) are used for obtaining the rotation line stroke L = r theta of the traction sheave (21);
the car simulator (3) and the counterweight simulator (4) move in opposite directions, and the displacement sensor measures the moving distance H of the car simulator (3);
s3: when H = L, the traction sheave (21) does not slide, and the traction force meets the requirement; when H < L, the traction sheave (21) slips, which indicates that the traction force is insufficient.
9. The method for detecting an elevator traction force detecting apparatus according to claim 8, wherein: in S3, when H = L, the drag force T = T1+ G1/G a- (T2 + G2/G a).
10. The method for detecting an elevator traction force detecting apparatus according to claim 2, wherein:
p1: adjusting the wrap angle phi of the traction sheave; adjusting the position of a first guide wheel (51), and measuring the horizontal distance Lb and the straight distance Lc between the traction wheel (21) and the first guide wheel (51) through a distance sensor, so that phi =90 ° + tan-1La／Lc；
P2: applying the bearing capacity G1 of the elevator car and the gravity G2 of the counterweight and not starting the traction machine; applying a constant bearing force G1 on the car simulator (3);
applying a varying bearing force G2 on the counterweight simulation device (4) and making G2 vary uniformly between 0-G1;
the traction equipment (2) is not started, and the displacement sensor obtains whether the moving distance H changes or not;
p3: when H > 0, the traction force T of the traction sheave (21) is insufficient.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114459989A (en) * | 2022-01-21 | 2022-05-10 | 江苏蒙哥马利电梯有限公司 | Simulation test device and method for friction slippage inside and outside elevator steel belt |
| CN114486497A (en) * | 2022-02-18 | 2022-05-13 | 浙江省特种设备科学研究院 | Lifting type elevator rope tension detection device and detection method |
| CN114538252A (en) * | 2022-01-18 | 2022-05-27 | 广东省特种设备检测研究院（广东省特种设备事故调查中心） | Continuous adjusting device and method for wrap angle of traction steel wire rope |
| CN117782665A (en) * | 2023-12-28 | 2024-03-29 | 苏州西艾杰电机有限公司 | Traction machine traction sheave performance detection device |
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2021
- 2021-01-29 CN CN202110124173.4A patent/CN112747853A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114538252A (en) * | 2022-01-18 | 2022-05-27 | 广东省特种设备检测研究院（广东省特种设备事故调查中心） | Continuous adjusting device and method for wrap angle of traction steel wire rope |
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Application publication date: 20210504 |