CN113636424A - Elevator rope head weighing device and method and elevator - Google Patents
Elevator rope head weighing device and method and elevator Download PDFInfo
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- CN113636424A CN113636424A CN202110884192.7A CN202110884192A CN113636424A CN 113636424 A CN113636424 A CN 113636424A CN 202110884192 A CN202110884192 A CN 202110884192A CN 113636424 A CN113636424 A CN 113636424A
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- 238000005303 weighing Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 108
- 230000006835 compression Effects 0.000 claims abstract description 33
- 238000007906 compression Methods 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 230000000630 rising effect Effects 0.000 claims abstract description 4
- 230000004308 accommodation Effects 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
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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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/14—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of excessive loads
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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
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention discloses an elevator rope head weighing device, which belongs to the technical field of elevators and comprises a measuring part and a transmission compression assembly, wherein the measuring part is provided with a first accommodating space and a second accommodating space which are communicated with each other, the cross sectional area of the first accommodating space is far larger than that of the second accommodating space, a first liquid medium is arranged in the measuring part, and the rising height of the liquid level of the first liquid medium in the second accommodating space can be measured; one end of the transmission compression assembly is fixedly connected with the moving end of the rope end spring, the other end of the transmission compression assembly can extrude the first liquid medium to press part of the first liquid medium into the second accommodating space from the first accommodating space when the elevator bears the weight, weighing is simple, and the elevator rope end weighing device is simple in structure, low in cost and convenient to maintain. The elevator rope end weighing method realizes elevator weighing through the elevator rope end weighing device. The elevator comprises the elevator rope head weighing device.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to an elevator rope head weighing device, a weighing method and an elevator.
Background
In order to measure the weight of people or objects in an elevator, elevator weighing is often required, and the mainstream technical scheme for elevator weighing is car weighing and rope end weighing.
The rope head component of the elevator comprises a rope head spring and a rope head rod, the fixed end of the rope head spring is arranged on a lower mounting plate of the rope head component fixedly connected with an external steel beam, because the rope head rod is connected with the lift car of the elevator through the steel wire rope, the moving end of the rope head spring is fixedly connected with the rope head rod, the rope end rod compresses the rope end spring when the weight of the elevator cage is increased, generates a tiny compression amount, the elastic coefficient K of the rope end spring is stable in the tiny compression range, the linearity is high, namely the compression amount of the rope end spring is basically in direct proportion to the increment of the weight of the elevator car, so weigh through measuring rope end spring compressive capacity, have the high characteristics of accuracy, but this rope end spring compressive capacity is very little, is difficult to weigh through the compressive capacity of direct detection rope end spring, so elevator rope end spring's compressive capacity is not extensively used for the elevator to weigh.
The existing rope end weighing generally adopts a pressure sensor technology, and the problems of difficulty in weighing, debugging, maintenance and the like exist because the pressure sensor needs to be pressed below a rope hitch plate, and the cost is high.
Disclosure of Invention
The invention aims to provide an elevator rope end weighing device, a weighing method and an elevator, and aims to solve the technical problems of difficulty in weighing, difficulty in maintaining the weighing device and high cost in the prior art.
As the conception, the technical scheme adopted by the invention is as follows:
an elevator rope hitch weighing apparatus comprising:
the measuring part is provided with a first accommodating space and a second accommodating space which are communicated with each other, the cross sectional area of the first accommodating space is far larger than that of the second accommodating space, a first liquid medium is arranged in the measuring part, and the rising height of the liquid level of the first liquid medium in the second accommodating space can be measured;
and one end of the transmission compression assembly is fixedly connected with the moving end of the rope end spring, and the other end of the transmission compression assembly can extrude the first liquid medium to press part of the first liquid medium into the second accommodating space from the first accommodating space when the elevator bears the load.
Further, the transmission compression assembly comprises:
the upper pressing plate is fixedly connected with the moving end of the rope head spring;
the upper end of the piston rod can be abutted against the upper pressure plate;
the piston head is fixedly connected with the lower end of the piston rod, the piston head is located in the first accommodating space and is in sliding connection with the measuring part, and the first liquid medium in the first accommodating space is located below the piston head.
Further, the piston rod comprises a straight rod and a pressing block, the upper end of the straight rod is fixedly connected with the pressing block, and the upper end of the pressing block is flat and can be abutted to the upper pressing plate.
Further, elevator fag end weighing device still includes to be located the piece that resets of first accommodation space top, the piston rod still includes the fixed plate, the fixed plate with straight-bar fixed connection, the up end that resets with the fixed plate butt, the lower terminal surface that resets with the upper end butt of measuring part.
Further, the piston rod further comprises a limiting block, the limiting block is located in the first accommodating space and fixedly connected with the straight rod, and when the rope end spring is not compressed, the limiting block is abutted to the upper end face of the inner portion of the measuring portion.
Furthermore, the measuring part is a container, the second accommodating space is located on one side of the first accommodating space, and the bottom end and the top end of the second accommodating space are communicated with the first accommodating space.
Furthermore, a second liquid medium is further disposed in the measuring portion, the second liquid medium is immiscible with the first liquid medium, and the second liquid medium is located above the first liquid medium to seal the first liquid medium.
Further, the cross-sectional area of the first accommodating space is at least five times that of the second accommodating space.
An elevator rope weighing method is based on the elevator rope weighing device, and comprises the following steps:
s1: setting a plurality of measuring points in the second accommodating space, wherein the plurality of measuring points comprise an idle reference point and a full reference point, when the elevator is idle, the liquid level of the first liquid medium in the second accommodating space is flush with the idle reference point, and when the elevator is full, the liquid level of the first liquid medium in the second accommodating space is flush with the full reference point;
s2: after people or articles are borne in the elevator car, the liquid level in the second accommodating space changes, and a measuring point which is at the same level with the liquid level of the first liquid medium in the second accommodating space is obtained;
s3: the load of the elevator at this time is calculated from the empty reference point, the full reference point, and the measurement point in S2.
An elevator comprises the elevator rope head weighing device.
The invention has the beneficial effects that:
the invention provides an elevator rope head weighing device, a rope head rod is pulled downwards after people or articles are borne in a lift car of an elevator, the rope head rod pulls a moving end of a rope head spring to enable the rope head spring to be slightly compressed, the rope head spring drives a transmission compression assembly to move, the transmission compression assembly presses part of a first liquid medium into a second accommodating space from a first accommodating space, the liquid level of the first liquid medium in the first accommodating space is reduced, the liquid level of the first liquid medium in the second accommodating space is raised, namely the compression amount of the rope head spring is converted into the variation of the liquid level position of the first liquid medium, as the cross sectional area of the first accommodating space is far larger than that of the second accommodating space, the compression amount of the small rope head spring which is difficult to be directly applied to weighing is converted into the variation of the height of a measurable liquid level, namely the effect of amplifying the compression amount of the rope head spring is realized, the load of the elevator at the moment can be obtained by calculation according to the liquid level change in the second accommodating space at the moment, the weighing is simple, and the elevator rope end weighing device is simple in structure and arranged in a machine room, so that the weighing device is low in cost and convenient to maintain.
The invention provides a method for weighing an elevator rope head, which realizes elevator weighing through the elevator rope head weighing device. The invention provides an elevator, which realizes elevator weighing through an elevator rope end weighing device and reduces the elevator weighing cost.
Drawings
Fig. 1 is a schematic structural view of an elevator rope end weighing device, a rope end assembly lower mounting plate and a rope end assembly provided by the invention;
fig. 2 is a partial structural schematic view I of the elevator rope end weighing device provided by the invention;
fig. 3 is a schematic view of a part of the structure of the elevator rope weighing device provided by the invention.
In the figure:
10. a rope end spring; 20. a rope end rod; 30. a lower mounting plate of the rope head component;
1. a measuring section; 11. a first accommodating space; 12. a second accommodating space;
2. a drive compression assembly; 21. an upper pressure plate; 22. a piston rod; 221. a straight rod; 222. briquetting; 223. a fixing plate; 224. a limiting block; 23. a piston head;
31. a first liquid medium; 32. a second liquid medium;
4. measuring points;
5. a reset member;
6. and connecting a nut.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
The embodiment of the invention provides an elevator which is used for bearing people or articles to lift. The elevator comprises an elevator rope end weighing device, and the elevator rope end weighing device is used for weighing the elevator.
Referring to fig. 1 to 3, the elevator rope end weighing device comprises a measuring part 1 and a transmission compression assembly 2, wherein the measuring part 1 is provided with a first accommodating space 11 and a second accommodating space 12 which are communicated with each other, the cross sectional area of the first accommodating space 11 is far larger than that of the second accommodating space 12, a first liquid medium 31 is arranged in the measuring part 1, and the rising height of the liquid level of the first liquid medium 31 in the second accommodating space 12 can be measured; one end of the transmission compression assembly 2 is fixedly connected with the moving end of the rope end spring 10, and the other end of the transmission compression assembly can press the first liquid medium 31 when the elevator is loaded so as to press part of the first liquid medium 31 into the second accommodating space 12 from the first accommodating space 11.
The rope head rod 20 is pulled downwards after people or articles are loaded in the elevator car, the rope head rod 20 pulls the moving end of the rope head spring 10 to compress the rope head spring 10, the rope head spring 10 drives the transmission compression assembly 2 to move, the transmission compression assembly 2 presses part of the first liquid medium 31 into the second accommodating space 12 from the first accommodating space 11, the liquid level of the first liquid medium 31 in the first accommodating space 11 is lowered, the liquid level of the first liquid medium 31 in the second accommodating space 12 is raised, namely, the compression amount of the rope head spring 10 is converted into the variation of the liquid level position of the first liquid medium 31, as the cross sectional area of the first accommodating space 11 is far larger than that of the second accommodating space 12, the compression amount of the rope head spring 10 which is small and difficult to measure is converted into the measurable liquid level height variation, namely, the effect of amplifying the compression amount of the rope head spring 10 is realized, and the load of the elevator at the moment can be calculated according to the liquid level variation in the second accommodating space 12, the elevator rope end weighing device is simple in structure, so that the weighing device is low in cost and convenient to maintain.
The cross-sectional areas of the first accommodating space 11 where the first liquid medium 31 is located are the same, and the cross-sectional areas of the second accommodating space 12 where the first liquid medium 31 is located are the same. If the cross-sectional area of the first receiving space is a and the cross-sectional area of the second receiving space is a, the magnification of the amount of compression of the spring 10 is a/a.
Referring to fig. 1, the measuring unit 1 is disposed on the lower mounting plate 30 of the head unit.
Referring to fig. 1 and 2, the measuring portion 1 is a container, the second accommodating space 12 is located at one side of the first accommodating space 11, the bottom end and the top end of the second accommodating space 12 are both communicated with the first accommodating space 11, the bottom end communication realizes that the first liquid medium 31 is pressed into the second accommodating space 12 from the first accommodating space 11, and the top end communication ensures that the pressure inside the container is stable.
The second liquid medium 32 is further disposed in the measuring portion 1, the second liquid medium 32 is immiscible with the first liquid medium 31, the second liquid medium 32 is disposed above the first liquid medium 31 to seal the first liquid medium 31, and loss of the first liquid medium 31 due to evaporation and the like is prevented from affecting a weighing result, for example, the first liquid medium 31 may be mercury, and the second liquid medium 32 may be water that prevents silver from volatilizing, but is not limited to this setting.
The liquid level of the second liquid medium 32 in the first accommodating space 11 is higher than the top end of the second accommodating space 12.
The cross-sectional area of the first accommodating space 11 is at least five times of the cross-sectional area of the second accommodating space 12, so that the compression amount of the rope end spring 10 is amplified, the amplified compression amount is displayed more clearly, a proper amplification factor is selected according to the actual compression amount of the rope end spring 10, and the cross-sectional area of the first accommodating space 11 is twenty times of the cross-sectional area of the second accommodating space 12 in the embodiment.
Referring to fig. 2, the transmission compression assembly 2 includes an upper pressing plate 21, a piston rod 22 and a piston head 23, the upper pressing plate 21 is fixedly connected with the moving end of the rope end spring 10; the upper end of the piston rod 22 can abut against the upper platen 21; the piston head 23 is fixedly connected with the lower end of the piston rod 22, the piston head 23 is located in the first accommodating space 11 and is in sliding connection with the measuring part 1, the first liquid medium 31 in the first accommodating space 11 is located below the piston head 23, the compression amount of the rope head spring 10 is converted into the movement amount of the piston head 23, and the piston head 23 extrudes the first liquid medium 31 to convert the compression amount of the rope head spring 10 into the variation amount of the liquid level of the first liquid medium 31.
The upper pressing plate 21 is fixedly connected with the moving end of the rope head spring 10 through the connecting nut 6, the connecting nut 6 is in threaded connection with the rope head rod 20, the rope head rod 20 penetrates through the upper pressing plate 21, the upper pressing plate 21 is clamped between the connecting nut 6 and the rope head spring 10, and the connecting nut 6 is fixedly connected with the rope head spring 10.
In this embodiment, two connection nuts 6 are connected to each rope end rod 20, so that the connection is firmer.
The piston rod 22 comprises a straight rod 221 and a pressing block 222, the upper end of the straight rod 221 is fixedly connected with the pressing block 222, the upper end of the pressing block 222 is in a flat plate shape and can be abutted to the upper pressing plate 21, and the area of the upper end face of the pressing block 222 is large, so that the straight rod 221 can extrude the piston head 23 more stably.
The elevator rope end weighing device further comprises a reset piece 5 located above the first accommodating space 11, the piston rod 22 further comprises a fixing plate 223, the fixing plate 223 is fixedly connected with the straight rod 221, the upper end face of the reset piece 5 is abutted to the fixing plate 223, and the lower end face of the reset piece 5 is abutted to the upper end of the measuring part 1.
The restoring piece 5 is a spring, the rope end spring 10 drives the upper pressing plate 21 to ascend after ascending, and at the moment, the upper pressing plate 21 is not in contact with the pressing block 222, so that the spring can rebound, the fixing plate 223 ascends through the resilience force of the spring, the fixing plate 223 drives the straight rod 221, the straight rod 221 drives the piston head 23 to ascend, and the liquid level of the first liquid medium 31 in the first accommodating space 11 ascends, so that restoring is realized; the resilience of the spring is negligible when the elevator is weighed because the resilience is much less than the pressure of the upper platen 21 against the pressure block 222.
A plurality of measuring points 4 are arranged in the second accommodating space 12, the plurality of measuring points 4 include an empty load reference point and a full load reference point, when the elevator is empty, the liquid level of the first liquid medium 31 in the second accommodating space 12 is flush with the empty load reference point, and when the elevator is full, the liquid level of the first liquid medium 31 in the second accommodating space 12 is flush with the full load reference point.
After people or articles are loaded in the elevator car, the liquid level in the second accommodating space 12 changes, a measuring point 4 which is flush with the liquid level of the first liquid medium 31 in the second accommodating space 12 at the moment is obtained, the distance between the no-load reference point and the measuring point 4 is divided by the distance between the no-load reference point and the full-load reference point to be the percentage of the load of the elevator in the full-load of the elevator at the moment, and the percentage is multiplied by the full-load of the elevator to obtain the load of the elevator at the moment.
The first liquid medium 31 is a conductive liquid medium, the measuring point 4 is a conductive measuring point, the conductive liquid medium can conduct the conductive measuring point contacted with the conductive liquid medium, the second liquid medium 32 is a non-conductive liquid medium, the total load, the no-load reference point, the full load reference point and the highest conducting measuring point of the elevator can be known, the load of the elevator at the moment can be obtained, the structure is simple, and the indication lamp can be observed externally in the modes of connecting the conductive measuring point with the indication lamp and the like, so that the load of the elevator at the moment can be obtained.
Referring to fig. 3, the piston rod 22 further includes a limiting block 224, the limiting block 224 is located in the first accommodating space 11 and fixedly connected to the straight rod 221, when the string head spring 10 is not compressed, the limiting block 224 abuts against an upper end face inside the measuring portion 1, when the string head spring 10 is not compressed, the limiting block 224 abuts against an upper end face inside the measuring assembly 1, and the limiting block 224 prevents the pressing block 222 from being damaged due to an excessive force of the pressing block 222 impacting the upper pressing plate 21 when the resetting piece 5 rebounds, so that the measuring accuracy is affected.
The embodiment of the invention provides a method for weighing an elevator rope head, which is based on the elevator rope head weighing device and comprises the following steps:
s1: a plurality of measuring points 4 are set in the second accommodating space 12, the plurality of measuring points 4 comprise an empty load reference point and a full load reference point, when the elevator is empty, the liquid level of the first liquid medium 31 in the second accommodating space 12 is flush with the empty load reference point, and when the elevator is full, the liquid level of the first liquid medium 31 in the second accommodating space 12 is flush with the full load reference point;
s2: after people or articles are borne in the elevator car, the liquid level in the second accommodating space 12 changes, and a measuring point 4 which is flush with the liquid level of the first liquid medium 31 in the second accommodating space 12 at the moment is obtained;
s3: the load of the elevator at this time is calculated from the empty reference point, the full reference point, and the measurement point 4 in S2.
The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention, which changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An elevator rope hitch weighing device, comprising:
the measuring part (1) is provided with a first accommodating space (11) and a second accommodating space (12) which are communicated with each other, the cross sectional area of the first accommodating space (11) is far larger than that of the second accommodating space (12), a first liquid medium (31) is arranged in the measuring part (1), and the rising height of the liquid level of the first liquid medium (31) in the second accommodating space (12) can be measured;
and one end of the transmission compression assembly (2) is fixedly connected with the moving end of the rope end spring (10), and the other end of the transmission compression assembly can press the first liquid medium (31) when the elevator bears the load so as to press part of the first liquid medium (31) into the second accommodating space (12) from the first accommodating space (11).
2. The elevator rope weighing device of claim 1, wherein the transmission compression assembly (2) comprises:
the upper pressure plate (21) is fixedly connected with the moving end of the rope end spring (10);
a piston rod (22) having an upper end capable of abutting against the upper platen (21);
the piston head (23) is fixedly connected with the lower end of the piston rod (22), the piston head (23) is located in the first accommodating space (11) and is in sliding connection with the measuring part (1), and the first liquid medium (31) in the first accommodating space (11) is located below the piston head (23).
3. The elevator rope weighing device according to claim 2, wherein the piston rod (22) comprises a straight rod (221) and a pressing block (222), the upper end of the straight rod (221) is fixedly connected with the pressing block (222), and the upper end of the pressing block (222) is in a flat plate shape and can be abutted against the upper pressing plate (21).
4. The elevator rope head weighing device according to claim 3, further comprising a reset piece (5) located above the first accommodating space (11), wherein the piston rod (22) further comprises a fixing plate (223), the fixing plate (223) is fixedly connected with the straight rod (221), the upper end surface of the reset piece (5) is abutted against the fixing plate (223), and the lower end surface of the reset piece (5) is abutted against the upper end of the measuring part (1).
5. The elevator rope weighing device according to claim 4, characterized in that the piston rod (22) further comprises a limiting block (224), the limiting block (224) is located in the first accommodating space (11) and is fixedly connected with the straight rod (221), and when the rope spring (10) is not compressed, the limiting block (224) is abutted with the upper end face inside the measuring part (1).
6. The elevator rope head weighing device according to claim 1, characterized in that the measuring part (1) is a container, the second accommodation space (12) is located at one side of the first accommodation space (11), and both the bottom end and the top end of the second accommodation space (12) are communicated with the first accommodation space (11).
7. The elevator rope weighing device according to claim 1, characterized in that a second liquid medium (32) is also provided in the measuring part (1), the second liquid medium (32) being immiscible with the first liquid medium (31), the second liquid medium (32) being located above the first liquid medium (31) to seal the first liquid medium (31).
8. Elevator rope head weighing device according to claim 1, characterized in that the cross-sectional area of the first accommodation space (11) is at least five times the cross-sectional area of the second accommodation space (12).
9. An elevator rope weighing method, characterized in that the elevator rope weighing device based on any one of claims 1-8 comprises:
s1: a plurality of measuring points (4) are set in the second accommodating space (12), the plurality of measuring points (4) comprise an idle load reference point and a full load reference point, when the elevator is idle, the liquid level of the first liquid medium (31) in the second accommodating space (12) is flush with the idle load reference point, and when the elevator is full, the liquid level of the first liquid medium (31) in the second accommodating space (12) is flush with the full load reference point;
s2: after people or articles are loaded in the elevator car, the liquid level in the second accommodating space (12) changes, and a measuring point (4) which is flush with the liquid level of the first liquid medium (31) in the second accommodating space (12) at the moment is obtained;
s3: the load of the elevator at this time is calculated from the empty reference point, the full reference point and the measurement point (4) in S2.
10. An elevator characterized by comprising an elevator rope head weighing device according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110884192.7A CN113636424A (en) | 2021-08-03 | 2021-08-03 | Elevator rope head weighing device and method and elevator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110884192.7A CN113636424A (en) | 2021-08-03 | 2021-08-03 | Elevator rope head weighing device and method and elevator |
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| GB739966A (en) * | 1954-03-25 | 1955-11-02 | Otis Elevator Co | Load weighing devices |
| FR2630544A1 (en) * | 1988-04-21 | 1989-10-27 | Ficheux Rene | Weighing device for measuring the load in lift cars |
| CN1125844A (en) * | 1994-12-30 | 1996-07-03 | 张兆祥 | Method of hydraulic metering |
| CN102128604A (en) * | 2010-01-14 | 2011-07-20 | 王艺霖 | Displacement measuring method |
| CN102052909A (en) * | 2010-11-30 | 2011-05-11 | 周泉清 | Micro-nano caliper |
| CN102012199A (en) * | 2010-11-30 | 2011-04-13 | 周泉清 | Method and device for accurately measuring and metering variable of liquid level of hydraulic container or oil cylinder |
| CN102351120A (en) * | 2011-09-29 | 2012-02-15 | 苏州富士电梯有限公司 | Elevator lift car load weighing device |
| CN103072867A (en) * | 2011-10-25 | 2013-05-01 | 康力电梯股份有限公司 | Overload warning device |
| CN102927966A (en) * | 2012-10-31 | 2013-02-13 | 清华大学 | Method for improving monitoring accuracy of structural settlement |
| CN207943724U (en) * | 2018-03-23 | 2018-10-09 | 浙江蒂尔森电梯有限公司 | Large-tonnage elevator rope head plate |
| CN108928692A (en) * | 2018-09-28 | 2018-12-04 | 山东富士制御电梯有限公司 | A kind of elevator weighing apparatus being mounted on rope end |
| CN109737897A (en) * | 2019-03-07 | 2019-05-10 | 王子琛 | A kind of hydraulic detection device of the plate-girder hinge seam vertical relative displacement in two sides |
| CN111044013A (en) * | 2019-12-19 | 2020-04-21 | 河海大学 | Settlement measuring device adopting liquid level amplification system |
| CN112129247A (en) * | 2020-09-08 | 2020-12-25 | 重庆建工第九建设有限公司 | Distance measurement alarm device with high sensitivity to structure one-way distance change |
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Application publication date: 20211112 |