CN114084775B - Elevator steel wire rope tension detection method and device, adjusting method and car pulley block - Google Patents
Elevator steel wire rope tension detection method and device, adjusting method and car pulley block Download PDFInfo
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- CN114084775B CN114084775B CN202111555627.XA CN202111555627A CN114084775B CN 114084775 B CN114084775 B CN 114084775B CN 202111555627 A CN202111555627 A CN 202111555627A CN 114084775 B CN114084775 B CN 114084775B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 79
- 239000010959 steel Substances 0.000 title claims abstract description 79
- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 42
- 238000006073 displacement reaction Methods 0.000 claims description 39
- 230000008859 change Effects 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 4
- 230000003044 adaptive effect Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
- B66B7/1207—Checking means
- B66B7/1215—Checking means specially adapted for ropes or cables
- B66B7/1223—Checking means specially adapted for ropes or cables by analysing electric variables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B15/00—Main component parts of mining-hoist winding devices
- B66B15/02—Rope or cable carriers
- B66B15/04—Friction sheaves; "Koepe" pulleys
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
- B66B7/10—Arrangements of ropes or cables for equalising rope or cable tension
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention discloses a method and a device for detecting the tension of an elevator steel wire rope, an adjusting method and a car pulley block. The detection device comprises a bracket connected with a fixing piece, wherein the bracket is fixed on the upper end surface of a gasket; the support is fixedly provided with a push-pull mechanism for driving the rope head bolt to move upwards, a power rod of the push-pull mechanism is connected with a force sensor, and the force sensor can detect the value of force generated by the push-pull mechanism pulling the rope head bolt. The pulling force of the movable pulley on the single traction steel wire rope is compared with a normal value, and the plurality of coaxially rotating grooved wheels can generate an adaptive angular speed along with the corresponding traction steel wire rope, so that the relative movement between the traction steel wire rope and the rope groove can be avoided, and the abrasion of the rope groove or the traction steel wire rope is avoided.
Description
Technical Field
The invention relates to the technical field of elevator detection, in particular to an elevator steel wire rope tension detection method and device, an adjusting method and a car pulley block.
Background
The conventional elevator generally comprises a car 101, a counterweight 102, a power device, a plurality of traction wire ropes 103, a gear train and a fixing member (as shown in fig. 1) for fixing the plurality of traction wire ropes 103, wherein the fixing member generally comprises a rope head bolt 104, a rope head spring 105, a gasket 106 and a nut 107, as shown in fig. 2, the upper end of the traction wire rope 103 is fixedly connected with the rope head bolt 104, the rope head bolt 104 passes through a fixing plate 108 and the gasket 106 and then is connected with the nut 107 in a threaded manner, the nut 107 is placed at the upper end of the gasket 106, the lower end of the rope head spring 105 is fixedly connected with the fixing plate 108, and the upper end is fixedly connected with the gasket 106.
The power device is typically a traction machine, and the traction machine is a transmission system formed by a traction wire rope 103 and a gear train, wherein the gear train comprises: the traction sheave 109, the sheave 110 and the movable sheave 111 are engaged to form a working diagram as shown in fig. 1, the common sheave and the movable sheave are shared by a plurality of traction steel wire ropes with a plurality of rope grooves, when in operation, a plurality of groups of traction steel wire ropes are respectively wound in different rope grooves of the same movable sheave, the traction machine drives the plurality of traction steel wire ropes to move, and the car and the counterweight move longitudinally along with the engagement of the movable sheave and the plurality of traction steel wire ropes fixed on the corresponding movable sheave.
For the movable pulley in the same rotation, the angular speeds of a plurality of rope grooves on the movable pulley are the same, and when the traction machine drives a plurality of traction steel wire ropes to move through the traction wheel, the linear speeds of the plurality of traction steel wire ropes through the same movable pulley are the same. If the geometric dimensions of the rope grooves and the traction steel wire ropes change, the plurality of traction steel wire ropes are likely to move relatively between the traction steel wire ropes with geometric dimensions changed and the corresponding rope grooves with geometric dimensions changed in order to ensure the same linear velocity, and the rope grooves or the traction steel wire ropes are inevitably worn.
The existing detection method generally detects the tension of a plurality of traction steel wires between a car and a traction sheave or between a counterweight and the traction sheave, and during detection, the plurality of traction steel wires are usually detected together, if the plurality of traction steel wires or a certain traction steel wire is clamped on a movable pulley corresponding to the car or the counterweight during detection, a large error exists in the tension of the traction steel wires between a fixing piece and the car or between the fixing piece and the counterweight, and thus the existing detection method is inaccurate, and the traction steel wire is in a dangerous condition of being separated from a rope groove of the movable pulley.
Disclosure of Invention
The invention aims to provide a method and a device for detecting the tension of an elevator steel wire rope, an adjusting method and a car pulley block, which can reduce abrasion of a rope groove or a traction steel wire rope and improve the accuracy of tension detection of the traction steel wire rope.
In order to achieve the above purpose, the present invention provides the following technical solutions: the elevator steel wire rope tension detection method comprises the following steps:
step one: a detection device is arranged at the fixing part of each traction steel wire rope head;
Step two: the push-pull mechanism of the detection device drives the rope end bolt to move upwards, and simultaneously the push-pull mechanism drives the gasket to move downwards relative to the rope end bolt, so that the elastic acting force of the rope end spring is overcome when the push-pull mechanism drives the gasket to move downwards;
Step three: in the process that the push-pull mechanism drives the gasket to move downwards relative to the rope end bolt, recording the moment when the displacement sensor initially generates displacement between the gasket and the rope end bolt, and reading the numerical value displayed by the force sensor connected with the push-pull mechanism in series at the moment to obtain the tension of the traction steel wire rope by the movable pulley;
or the positions of the points a and b are selected at will, the displacement value S a、Sb of the gasket relative to the rope head bolt when the positions of the points a and b are measured by a displacement sensor and the thrust value F a、Fb of the gasket corresponding to the displacement position to the rope head spring are established, a coordinate system of the displacement value and the tension value is established, the coordinates (S a、Fa)、(Sb、Fb) of the positions of the points a and b are substituted to obtain an AB oblique line, and the thrust value F 0,F0 of the AB oblique line at the position of the point 0 is directly read through the coordinate system, namely, the tension of the traction steel wire rope is equal to the tension of the movable pulley;
or the push-pull mechanism starts to pull the rope head bolt and continuously increases the pulling force, continuously reads the numerical value of a force sensor connected in series with the push-pull mechanism, and forms a change curve through the numerical value change and the time change of the force sensor, and when the numerical value is changed from the first state section to the second state section, the inflection point value is the pulling force of the movable pulley on the traction steel wire rope;
Step four: and (3) comparing the tension value of the movable pulley actually received by the traction steel wire rope measured in the step (III) with the tension range value of the movable pulley received by the traction steel wire rope when the traction steel wire rope normally works, wherein the tension value actually received by the traction steel wire rope is within the allowable range of the tension range value received by the traction steel wire rope when the traction steel wire rope normally works, if the tension value actually received by the traction steel wire rope is not within the allowable range of the tension range value received by the traction steel wire rope when the traction steel wire rope normally works, the tension of the traction steel wire rope is problematic and needs to be adjusted.
The elevator steel wire rope tension detection device comprises a bracket connected with a fixing piece, wherein the bracket is fixed on the upper end surface of a gasket;
the support is fixedly provided with a push-pull mechanism for driving the rope head bolt to move upwards, the push-pull mechanism is connected with the force sensor in series, and the force sensor can detect the value of force generated by the push-pull mechanism pulling the rope head bolt.
Preferably, a displacement sensor is arranged between the gasket and the rope end bolt, and the displacement sensor can detect the displacement value of the gasket relative to the movement of the rope end bolt.
Preferably, the rope head bolt is fixed on a power rod of the push-pull mechanism through a clamp.
The elevator steel wire rope tension adjusting method comprises the following steps: the tension of the traction steel wire ropes at the two sides of the movable pulley is adjusted and balanced to make the sizes of the traction steel wire ropes consistent.
Preferably, the movable pulley with multiple rope grooves shared by the original multiple traction steel wire ropes is replaced by a car pulley block with multiple grooved pulleys which are independently matched with a single traction steel wire rope to rotate, so that each traction steel wire rope independently corresponds to one grooved pulley to rotate. The purpose is that a plurality of coaxially and independently rotating sheaves can produce an adapted angular velocity with their corresponding hoisting ropes.
The first elevator car pulley block comprises a plurality of single-rope groove movable pulleys, the plurality of single-rope groove movable pulleys coaxially rotate through a wheel shaft, each single-rope groove movable pulley rotates independently, and each single-rope groove movable pulley is correspondingly provided with a traction steel wire rope matched with the single-rope groove movable pulley.
Preferably, a plurality of annular bulges with gradually increased diameters, which are uniformly distributed in the circle centers, are arranged on two side surfaces of the plurality of single-rope groove movable pulleys, an annular mounting groove is formed between two adjacent annular bulges, and the two adjacent single-rope groove movable pulleys are mounted in a matched manner through the annular bulges and the annular mounting groove.
The second type of car pulley block comprises a pulley groove inner core and a plurality of pulley groove rings which are rotatably arranged on the pulley groove inner core, wherein the pulley groove inner core is in a cylinder shape, the outer edge surfaces of the pulley groove inner core are spaced, each pulley groove is correspondingly provided with a pulley groove ring, the pulley groove rings are connected with the pulley groove through a rotating body, the pulley groove rings rotate coaxially around a wheel shaft which is rotatably arranged at the axle center of the pulley groove inner core, and each pulley groove ring rotates independently.
Preferably, the rotating body is a steel ball.
Compared with the prior art, the invention has the following beneficial effects:
1. According to the detection method, the tension condition of each traction steel wire rope is detected respectively, so that the detection accuracy can be improved;
2. the detection device can respectively and independently detect the tension of each traction steel wire rope, and has simple and practical structure;
3. The adjusting method of the invention ensures that when the traction machine drives a plurality of traction steel wire ropes to move through the traction wheel, the traction steel wire ropes at the two sides of the movable pulley have equivalent tension. Through the arrangement of the car pulley block, the plurality of coaxially rotating grooved wheels can generate an adaptive angular speed along with the corresponding traction steel wire rope, so that the relative movement between the traction steel wire rope and the rope groove can be avoided, and the abrasion of the rope groove or the traction steel wire rope is avoided;
4. The car pulley block is simple in structure, practical and convenient.
Drawings
Fig. 1 is a schematic diagram of the operation of a conventional elevator;
FIG. 2 is an enlarged view of M in FIG. 1;
FIG. 3 is a schematic view of the detection device of the present invention mounted on a fixture;
Fig. 4 is an enlarged view of N in fig. 3;
FIG. 5 is a coordinate system of displacement values and tension values constructed in accordance with the present invention;
FIG. 6 is a coordinate system of time and tension values constructed in accordance with the present invention;
fig. 7 is a schematic diagram of a single rope groove movable sheave structure of a first car pulley block of the present invention;
fig. 8 is an elevation view of the first car pulley assembly connected to the traction wire rope;
fig. 9 is a schematic structural view of a first car pulley block according to the present invention;
fig. 10 is a schematic structural view of a second car pulley block according to the present invention;
Fig. 11 is an elevation view of the second car pulley assembly connected to the traction wire rope;
In the figure: 101-a car, 102-a counterweight, 103-a traction steel wire rope, 104-a rope end bolt, 105-a rope end spring, 106-a gasket, 107-a nut, 108-a fixed plate, 109-a traction sheave, 110-a passing sheave and 111-a movable sheave;
The device comprises a 1-bracket, a 2-push-pull mechanism, a 3-force sensor, a 4-clamp, a 5-displacement sensor, a 6-single rope groove movable pulley, a 7-annular mounting groove, an 8-annular bulge, a 9-wheel shaft, a 10-wheel groove ring, an 11-rotating body and a 12-wheel groove inner core.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 11, the present invention provides a method for detecting the tension of a hoisting rope 103, in which a detecting device is disposed at a fixing part of a rope end of each hoisting rope 103, the detecting device can detect the tension of each hoisting rope 103, the detecting device detects the tension of a movable pulley 111 actually applied to each hoisting rope 103, and by comparing the detected tension value actually applied to the hoisting rope 103 with the tension range value of the movable pulley 111 applied to the hoisting rope 103 when the hoisting rope 103 works normally, the tension of the hoisting rope 103 is indicated to be in a normal state as long as the tension value actually applied to the hoisting rope 103 is within the allowable range of the tension range value applied to the hoisting rope 103 when the hoisting rope 103 works normally, and if the tension value actually applied to the hoisting rope 103 is not within the allowable range of the tension range value applied to the hoisting rope 103 when the hoisting rope works normally, the tension of the hoisting rope 103 is problematic and needs to be adjusted.
Example 1
The detection device comprises a bracket 1, a clamp 4, a displacement sensor 5, a push-pull mechanism 2 and a force sensor 3. As shown in fig. 4, the bracket 1 is fixed on the upper end surface of the gasket 106, the push-pull mechanism 2 is fixed in the bracket 1, the push-pull mechanism 2 can be an electric telescopic rod, the rope end bolt 104 is fixed on the power rod of the push-pull mechanism 2 through the clamp 4, the force sensor 3 is arranged between the power rod of the push-pull mechanism 2 and the clamp 4, and the force sensor 3 can detect the value of the force generated by the push-pull mechanism 2 pulling the rope end bolt 104; the displacement sensor 5 is fixed on the upper end surface of the spacer 106, and the displacement sensor 5 can detect the distance of the movement of the rope end bolt 104. In practical applications, the force sensor 3 may also be disposed between the push-pull mechanism 2 and the bracket 1.
As can be seen from the analysis of fig. 4, the pulling force of the traction wire rope 103 by the movable pulley 111 can be converted into a critical value when the gasket 106 just leaves the rope end bolt 104, that is, a critical pushing force required by the push-pull mechanism 2 to overcome the elastic force of the rope end spring 105 when the gasket 106 moves downward relative to the rope end bolt 104.
During operation, the push-pull mechanism 2 drives the rope end bolt 104 to move through the clamp 4, and the bracket 1 and the gasket 106 move downwards relative to the rope end bolt 104 due to the action of the rope end spring 105. The position a in fig. 5 is the relative distance OA between the spacer 106 and the rope end bolt 104. The push-pull mechanism 2 continuously applies acting force, the relative distance between the gasket 106 and the rope end bolt 104 is OA, and the force sensor 3 records the value of the position point, namely the required pulling force of the traction steel wire rope 103 by the movable pulley 111 is denoted as FA. In the actual use process, the initial displacement moment generated by the displacement sensor 5 is observed, and the numerical value of the force sensor 3 at the moment is read.
In the process of continuously moving the gasket 106 downwards relative to the rope end bolt 104 at a slow speed by the action of the push-pull mechanism 2, three positions of 0, a and b exist in fig. 5, wherein the position of 0 (displacement value) is a critical position overcoming the elastic acting force of the rope end spring 105 when the push-pull mechanism 2 drives the gasket 106 to move downwards, the position of a and b is a certain position of the push-pull mechanism 2 which drives the gasket 106 to move downwards, the pushing forces of the two points a and b are respectively marked as Fa and Fb, and the pushing forces generated in the process of moving the gasket 106 downwards relative to the rope end bolt 104 are different due to the action of the push-pull mechanism 2, the force sensor 3 detects different pushing force values, meanwhile, the displacement sensor 5 detects different displacement values in the process of moving the gasket 106 downwards relative to the rope end bolt 104, and the displacement value corresponds to the pushing force value detected by the sensor 3 when the displacement sensor 5 detects the different displacement values.
By establishing a coordinate system of displacement values and tension values. Wherein for the two points a and b, the force sensor 3 can directly detect the thrust values of the two points, namely Fa and Fb; the displacement sensor 5 directly detects the displacement values of the two points, i.e., sa, sb. And (5) calculating the AB oblique line through the two groups of pull force and displacement values of a and b.
In the first scheme, the tension value Fa of Fa and Fb oblique lines at the position of 0 point displacement value is directly read through a coordinate system, so that the traction wire rope 103 is pulled by the movable pulley 111.
And in the second scheme, recording the moment when the displacement sensor 5 initially generates displacement, and reading the value FA displayed by the force sensor 3 at the moment to obtain the value of the pulling force of the movable pulley 111 on the traction wire rope 103.
The tension adjusting method for the elevator steel wire rope comprises the following steps: the tension of the hoisting wire ropes 103 on both sides of the movable pulley 111 is adjusted and balanced to be uniform.
The specific operation mode is as follows: the original movable pulley 111 with multiple rope grooves shared by a plurality of traction steel wire ropes 103 is improved to a car pulley block with a plurality of sheaves which are independently matched with a single traction steel wire rope 103 to rotate. So that each traction wire rope 103 corresponds to one sheave, when the traction machine drives a plurality of traction wire ropes 103 to move through the traction sheave 109, the sheaves which coaxially rotate can generate an adaptive angular velocity along with the corresponding traction wire ropes 103, thereby avoiding relative movement between the traction wire ropes 103 and rope grooves and avoiding abrasion of the rope grooves or the traction wire ropes 103.
First kind car 101 assembly pulley structure:
Including a plurality of single rope groove movable pulleys 6, a plurality of diameter that a plurality of single rope groove movable pulleys 6 both sides face all is provided with the centre of a circle equipartition is increased annular bulge 8 gradually, constitutes annular mounting groove 7 between two adjacent annular bulge 8, installs through annular bulge 8 and annular mounting groove 7 cooperation between two adjacent single rope groove movable pulleys 6, and a plurality of single rope groove movable pulleys 6 pass through shaft 9 coaxial rotation to mutually independent rotates between every single rope groove movable pulley 6, and every single rope groove movable pulley 6 all corresponds the traction wire rope 103 who has with it adaptation.
Under the condition that the original space allows the installation width, the annular bulge 8 and the annular installation groove 7 increase the bearing capacity of the plurality of single-rope groove movable pulleys 6, and the bearing effect is improved.
The second type of car 101 pulley block structure:
The wheel groove inner core 12 and a plurality of wheel groove rings 10 rotationally arranged on the wheel groove inner core 12 are included, the wheel groove inner core 12 is in a cylinder shape, wheel grooves are formed in the outer edge surface of the wheel groove inner core 12 at intervals, each wheel groove is correspondingly provided with a wheel groove ring 10, the wheel groove rings 10 are connected with the wheel groove through a rotating body 11, the rotating body 11 can be steel balls, the wheel groove rings 10 rotate coaxially around an axle 9 rotationally arranged at the axle center of the wheel groove inner core 12, and each wheel groove ring 10 rotates independently.
Example 2
In this embodiment, the displacement sensor 5 in embodiment 1 is omitted.
As shown in fig. 6, the push-pull mechanism starts to pull the rope head bolt 104 and continuously increases the pulling force, the value of the force sensor 3 connected in series with the push-pull mechanism is continuously read, a change curve is formed by the change of the value of the force sensor 3 and the change of time, when the value is changed from the first state section to the second state section, the inflection point value is the pulling force of the traction steel wire rope 103 by the movable pulley 111, and the pulling force value of the point P is the pulling force of the traction steel wire rope 103 by the movable pulley 111. In fig. 6, a line OP is a first state segment, and a line PQ is a second state segment.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The elevator steel wire rope tension detection method is characterized by comprising the following steps of:
step one: a detection device is arranged at the fixing part of the rope head of each traction steel wire rope (103);
Step two: the push-pull mechanism (2) of the detection device drives the rope end bolt (104) to move upwards, meanwhile, the push-pull mechanism (2) drives the gasket (106) to move downwards relative to the rope end bolt (104), and the elastic acting force of the rope end spring (105) is overcome when the push-pull mechanism (2) drives the gasket (106) to move downwards;
Step three: in the process that the push-pull mechanism (2) drives the gasket (106) to move downwards relative to the rope end bolt (104), the moment when the displacement sensor (5) initially generates displacement between the gasket (106) and the rope end bolt (104) is recorded, the numerical value displayed by the force sensor (3) connected with the push-pull mechanism (2) in series at the moment is read, and the pulling force of the movable pulley (111) on the traction steel wire rope (103) is obtained;
Or arbitrarily selecting the positions of the points a and b, measuring displacement values Sa and Sb of the gasket (106) relative to the rope head bolt (104) and thrust values Fa and Fb of the gasket (106) corresponding to the displacement positions on the rope head spring (105) through the displacement sensor (5), establishing a coordinate system of the displacement values and the tension values, substituting the coordinates (Sa, fa), (Sb and Fb) of the positions of the points a and b to obtain an AB oblique line, and directly reading the thrust values F0 of the AB oblique line at the position of 0 point through the coordinate system, wherein F0 is equal to the tension of the traction steel wire rope (103) on the movable pulley (111);
Or the push-pull mechanism starts to pull the rope head bolt (104) and continuously increases the pulling force, continuously reads the value of the force sensor (3) connected in series with the push-pull mechanism, forms a change curve through the change of the value of the force sensor (3) and the time change, and when the value is changed from the first state section to the second state section, the inflection point value is the pulling force of the traction steel wire rope (103) on the movable pulley (111);
Step four: the tension value of the traction steel wire rope (103) actually received by the movable pulley (111) measured in the third step is compared with the tension range value of the movable pulley (111) received by the traction steel wire rope (103) during normal operation, if the tension value of the traction steel wire rope (103) actually received is within the allowable range of the tension range value received by the traction steel wire rope (103) during normal operation, the tension of the traction steel wire rope (103) is indicated to be in a normal state, and if the tension value of the traction steel wire rope (103) actually received is not within the allowable range of the tension range value received by the traction steel wire rope (103) during normal operation, the tension of the traction steel wire rope (103) is indicated to have a problem and needs to be regulated.
2. The elevator wire rope tension detection device is applied to the elevator wire rope tension detection method of claim 1, and comprises a bracket (1) connected with a fixing piece, and is characterized in that: the bracket (1) is fixed on the upper end surface of the gasket (106);
The support (1) is fixedly provided with a push-pull mechanism (2) for driving the rope end bolt (104) to move upwards, the push-pull mechanism (2) is connected with the force sensor (3) in series, and the force sensor (3) can detect the value of the force generated by the push-pull mechanism (2) pulling the rope end bolt (104).
3. The elevator wire rope tension sensing device of claim 2, wherein: a displacement sensor (5) is arranged between the gasket (106) and the rope end bolt (104), and the displacement sensor (5) can detect the displacement value of the gasket (106) relative to the movement of the rope end bolt (104).
4. The elevator wire rope tension sensing device of claim 2, wherein: the rope head bolt (104) is fixed on a power rod of the push-pull mechanism (2) through the clamp (4).
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| CN202111555627.XA CN114084775B (en) | 2021-12-17 | 2021-12-17 | Elevator steel wire rope tension detection method and device, adjusting method and car pulley block |
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| CN202111555627.XA CN114084775B (en) | 2021-12-17 | 2021-12-17 | Elevator steel wire rope tension detection method and device, adjusting method and car pulley block |
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