CN211920524U - Force measuring device for elevator balance coefficient detection - Google Patents
Force measuring device for elevator balance coefficient detection Download PDFInfo
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- CN211920524U CN211920524U CN202020396825.0U CN202020396825U CN211920524U CN 211920524 U CN211920524 U CN 211920524U CN 202020396825 U CN202020396825 U CN 202020396825U CN 211920524 U CN211920524 U CN 211920524U
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Abstract
The utility model discloses a force measuring device for detecting the balance coefficient of an elevator, which comprises a measuring body and a base, wherein the measuring body comprises a clamping mechanism and a force measuring mechanism, and the force measuring mechanism is positioned between the clamping mechanism and the base; the clamping mechanism comprises a first clamping plate, a second clamping plate, a clamping screw and a servo motor, the first clamping plate and the second clamping plate are oppositely arranged, a threaded hole is formed in the first clamping plate, a connecting hole is formed in the second clamping plate, one end of the clamping screw is connected with an output shaft of the servo motor and penetrates through the connecting hole of the second clamping plate, the other end of the clamping screw is connected into the threaded hole of the first clamping plate, and a clamping space for the suspension device to penetrate through is formed between the first clamping plate and the second clamping plate; the force measuring mechanism is arranged between the clamping mechanism and the base, and can measure the tensile force or the pressure applied to the base by the clamping mechanism.
Description
Technical Field
The utility model relates to an elevator detects technical field, concretely relates to measuring force device for elevator balance coefficient detects.
Background
The current general balance coefficient detection method comprises a current detection method: the elevator car is respectively loaded with loads with rated load capacity of 30%, 40%, 45%, 50% and 60% to carry out up and down full-range operation, when the car and the counterweight run to the same horizontal position, the current value of the traction driving motor is measured and recorded, a current-load curve is drawn, and a balance coefficient is determined by the intersection point of the up and down operation curves. The method needs to use the weight for multiple times, is time-consuming and labor-consuming in transportation, and can generate larger errors due to the influences of power supply voltage fluctuation, guide rail lubrication, running resistance and the like when the current value is measured.
Most of the existing elevator balance coefficient detecting instruments in the market are complex in structure and high in cost, and are difficult to popularize and apply.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model aims at providing a measuring force device for elevator balance coefficient detects.
The utility model adopts the technical proposal that:
a force measuring device for detecting the balance coefficient of an elevator comprises a measuring body and a base, wherein the measuring body comprises a clamping mechanism and a force measuring mechanism, and the force measuring mechanism is positioned between the clamping mechanism and the base; the clamping mechanism comprises a first clamping plate, a second clamping plate, a clamping screw and a servo motor, wherein the first clamping plate and the second clamping plate are arranged oppositely, a threaded hole is formed in the first clamping plate, a connecting hole is formed in the second clamping plate, one end of the clamping screw penetrates through the connecting hole in the second clamping plate and is connected with the output shaft of the servo motor, the other end of the clamping screw is rotatably connected in the connecting threaded hole of the first clamping plate, and a clamping space for the suspension device to pass through is formed between the first clamping plate and the second clamping plate.
Further, the force measuring mechanism is a weighing type tension and pressure sensor.
Further, the lower end of the force measuring mechanism is pressed on the base, and the clamping mechanism is pressed on the upper end of the force measuring mechanism.
Furthermore, the upper end of the force measuring mechanism is connected to the clamping mechanism, and the lower end of the force measuring mechanism is connected to the base; the base is located at the lower end of the force measuring mechanism, provides tension for the force measuring mechanism and is fixed on the elevator bearing beam.
The tension rope is integrated on the second clamping plate of the clamping mechanism, a hook or a hanging ring is arranged at the lower end of the force measuring mechanism, a pull ring hole is formed in the middle of the base, a pull ring is fixed in the pull ring hole, one end of the tension rope is fixed with the hook or the hanging ring, and the other end of the tension rope is fixed with the pull ring.
Furthermore, the upper end of the force measuring mechanism is fixed on the second clamping plate, the lower end of the force measuring mechanism is provided with a hook, the middle of the base is provided with a pull ring hole, a pull ring is fixed in the pull ring hole, and the hook is hooked on the pull ring.
Further, still include the display screen, this display screen is the touch-sensitive screen, and this display screen is installed on the surface of second splint.
Furthermore, the connecting holes, the connecting threaded holes, the clamping screws and the servo motors are correspondingly three and arranged in a triangular shape.
Further, a polyurethane elastic material layer is arranged on one side surface of the first clamping plate, which is opposite to the second clamping plate.
Furthermore, a fixing device used for being fixed with the elevator bearing beam is arranged on the base.
Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:
according to the servo motor clamping device, a connecting threaded hole is formed in a first clamping plate, a connecting hole is formed in a second clamping plate, one end of a clamping screw is rotatably connected into the connecting threaded hole of the first clamping plate, and the other end of the clamping screw is matched with the connecting hole in the second clamping plate and penetrates through the connecting hole to be connected with an output shaft of a servo motor; accessible servo motor drive centre gripping spiral rotates because centre gripping spiral and the cooperation of first splint screw hole pass the second splint connecting hole rotatable, consequently, when centre gripping spiral rotates, the second splint do keep away from or be close to first splint action to realize the increase in centre gripping space or reduce, thereby be convenient for adjust first splint and second splint and to linkage's centre gripping dynamics, it is convenient to adjust.
Through set up the dynamometer between fixture and base, this dynamometer measurable quantity fixture exerts pulling force or fixture exerts pressure to the base, and then calculates the elevator to the quality poor with the car, through the convenient calculation elevator balance coefficient of balance coefficient formula, has avoided using the drawback of weight many times among the current detection method.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of a force measuring device for detecting an elevator balance coefficient provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a force measuring device for detecting the balance coefficient of an elevator, which is provided by the embodiment of the application and used for measuring the pressure;
fig. 3 is a schematic structural diagram of another tension measuring device for detecting the balance coefficient of an elevator, which is provided by the embodiment of the application;
FIG. 4 is a schematic view of a force measurement connection structure of a force measurement device for detecting the balance coefficient of an elevator provided by the embodiment of the application; the left side of the figure is a schematic diagram of a connecting structure for measuring pressure by using a force measuring mechanism; the right side is a schematic diagram of a connecting structure for measuring the tensile force by using a force measuring mechanism;
fig. 5 is a schematic view of a base structure according to an embodiment of the present disclosure.
The elevator tension measuring device comprises a clamping mechanism 1, a first clamping plate 11, a second clamping plate 12, a clamping screw 13, a force measuring mechanism 2, a base 3, a fixing device 4, a suspension device 5, a display screen 6, a tension rope 7, an elevator bearing beam 8, a fixing hole groove 32 and a pull ring hole 33.
Detailed Description
Here, it is to be noted that the functions, methods, and the like related to the present invention are only conventional adaptive applications of the related art. Therefore, the present invention is an improvement of the prior art, which substantially lies in the connection relationship between hardware, not in the functions and methods themselves, that is, the present invention relates to a few functions and methods, but does not include the improvements proposed in the functions and methods themselves. The present invention is described for better illustration of the function and method for better understanding of the present invention.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
Referring to fig. 1 to 4, the force measuring device for detecting the balance coefficient of the elevator comprises a measuring body and a base 3, wherein the measuring body comprises a clamping mechanism 1 and a force measuring mechanism 2, and the force measuring mechanism 2 is located between the clamping mechanism 1 and the base 3; fixture 1 includes first splint 11, second splint 12, centre gripping spiral 13 and servo motor, first splint 11 and second splint 12 set up relatively, offered connecting screw hole on first splint 11, offered the connecting hole on second splint 12, the one end of centre gripping spiral 13 passes connecting hole on second splint 12, and with servo motor output shaft, but the other end and rotatable coupling have the centre gripping space that supplies linkage 5 to pass between first splint 11 and second splint 12 in the connecting screw hole of first splint 11.
This application is through seting up connecting screw hole on first splint 11, set up the connecting hole on second splint 12, the one end and the servo motor output shaft of centre gripping spiral 13, the centre gripping spiral main part passes connecting hole on second splint 12, other end rotatable coupling is downthehole at the connecting screw of first splint 11, accessible servo motor drive centre gripping spiral 13 rotates, because centre gripping spiral 13 and 11 screw-thread fit of first splint, it is rotatable to pass second splint 12, therefore, when centre gripping spiral 13 rotates, second splint 12 does and keeps away from or is close to first splint 11 action, in order to realize the increase in centre gripping space or reduce, thereby be convenient for adjust first splint 11 and second splint 12 to the centre gripping dynamics of linkage 5, it is convenient to adjust.
Set up the screw hole on first splint 11, when needs centre gripping linkage 5, through servo motor drive centre gripping spiral 13, make the centre gripping spiral screw-out, first splint 11 and the separation of second splint 12 to with linkage 5 clamp in the centre gripping space.
Through set up the dynamometer 2 between fixture 1 and base 3, this dynamometer 2 measurable quantity fixture 1 is to the pulling force that base 3 applied or fixture 1 is to the pressure that base 3 applied, and then calculates the elevator to heavy and the quality of car poor, can be convenient calculate the elevator balance coefficient through the formula of balance coefficient, has avoided the drawback of prior art repetitious use weight.
Preferably, the force measuring means 2 is a weighing-type tension-pressure sensor. The sensor can measure tension and pressure, and is convenient to install and measure. Specifically, the force measuring mechanism 2 is a column type S-shaped force measuring sensor manufactured by shanghai jizhi sensing instrument limited, and the model is U10F.
Referring to fig. 2, in one embodiment, the lower end of the force measuring mechanism 2 presses against the base 3 and the gripper mechanism 1 presses against the upper end of the force measuring mechanism 2.
During measurement, the base 3 is arranged on the elevator bearing beam 8, the brake is opened, the suspension device 5 drives the clamping mechanism 1 to be close to the base 3, and the clamping mechanism 1 and the base 3 are pressed. By adopting the mode, the connector of the force measuring mechanism 2 is contacted with the base 3 in a pressed mode to measure the pressure value, and the connection is convenient.
Referring to fig. 3, in another embodiment, the upper end of the force measuring mechanism 2 is fixed to the fixture 1, and the lower end of the force measuring mechanism 2 is hooked to the base 3.
During measurement, the base 3 is fixed on the elevator bearing beam 8, the brake is opened, the suspension device 5 drives the clamping mechanism 1 to be far away from the base 3, and the clamping mechanism 1 and the base 3 bear tension. In this way, the connection head of the force measuring means 2 is connected in tension to the base 3 for measuring the tension value.
Referring to fig. 1, in an embodiment, the clamping device further comprises a tension rope 7, the force measuring mechanism 2 is integrated on the second clamping plate 12 of the clamping mechanism 1, only the lower end of the force measuring mechanism 2 is exposed, a hook or a hanging ring is arranged at the lower end of the force measuring mechanism 2, a pull ring is fixedly arranged in the middle of the base 3, one end of the tension rope 7 is fixed with the hook or the hanging ring, and the other end of the tension rope is fixed with the pull ring.
The upper end of the force measuring means 2 can be integrated in the second clamping plate 12 in a conventional manner, which will not be described in further detail. The force measuring mechanism 2 is integrated on the second clamping plate 12, so that the volume of the measuring body can be reduced, and the whole device is more miniaturized.
In this way, the base 3 can be arranged below the elevator bearing beam 8, and the position of the base 3 is relatively fixed through the tension of the tension rope 7 and the elevator bearing beam 8.
Referring to fig. 3, in one embodiment, the upper end of the force measuring mechanism 2 is fixed on the second clamping plate 12 through a U-shaped clamp, the lower end of the force measuring mechanism 2 is provided with a hook, and the middle of the base 3 is fixedly provided with a pull ring on which the hook is hooked.
By adopting the mode, the fixing devices 4 can be arranged at the two ends of the base 3, the base 3 is fixed on the upper side of the elevator bearing beam 8 by adopting the fixing devices 4, and the connection of the base 3 with the force measuring mechanism 2 and the clamping mechanism 1 is realized through the hooks and the pull rings.
Specifically, the fixing device 4 includes a bolt, a nut and a guide rail pressing plate, and fixing hole slots 32 are formed at two ends of the base 3. The bolt can adjust fixed position in the fixed hole groove according to the distance between two spandrel girders of elevator, and one end of bolt passes the fixed hole groove and is connected with the guide rail clamp plate, and the guide rail clamp plate presses on the edge of a wing of elevator spandrel girder 8. The elevator bearing beam 8 is generally channel steel or I-steel, and the base 3 and the elevator bearing beam 8 can be fixed by screwing the nut.
Referring to fig. 5, the base 3 may or may not be provided with the fixing means 4. In one embodiment, the base 3 is made of a non-metallic high strength composite material, such as glass reinforced plastic. Magnets are embedded in the surface of the base 3, which is in contact with the elevator bearing beam 8, so that the base 3 is magnetic and is fixed to the elevator bearing beam 8 through the magnetism of the magnets. The attraction force of the magnet at this time is only for supporting the self weight of the base 3. By placing the base on the upper or lower surface of the load beam, the force applied by the clamping mechanism causes the base to press tightly against the load beam. No fixing means are required. The force measuring mechanism can be fixed in the way when being vertically pressed and pulled, and is light, easy to operate and strong in adaptability.
Preferably, the device further comprises a display screen 6 and a power switch, wherein the display screen 6 is a touch screen, and the display screen 6 is mounted on the surface of the second clamping plate 12. The display screen 6 can be used to display the measurement results, and data can also be input through the display screen 6.
Preferably, the clamping mechanism further comprises an operating button of the clamping mechanism 1, and the operating button can control the servo motor to rotate forwards and backwards and stop, so that the servo motor drives the clamping screw 13 to rotate, and the first clamping plate 11 and the second clamping plate 12 are clamped automatically.
Preferably, the connecting holes, the connecting threaded holes, the clamping screws 13 and the servo motors are all three corresponding to each other and arranged in a triangular shape.
Preferably, the area can set up three pressure sensor, and three pressure sensor is used for measuring between first splint 11 and the second splint 12, and is corresponding to the pressure value of three centre gripping spiral 13 positions department respectively, and servo motor can adjust corresponding three centre gripping spiral 13 according to this pressure value to it is even to keep centre gripping space internal pressure, makes by the even atress of linkage 5 of centre gripping, avoids the too big linkage 5 deformation that leads to of clamping-force simultaneously.
When the device is specifically arranged, a controller can be arranged, a standard clamping pressure value is preset in the controller, the pressure sensor is connected with the controller, and the controller is connected with the servo motor. The clamping pressure value is detected in real time through the pressure sensor, and the servo motor is controlled to rotate by the controller until the real-time clamping pressure value is consistent with the preset standard clamping pressure value.
Preferably, the opposite sides of the first clamping plate 11 and the second clamping plate 12 are provided with polyurethane elastic material layers.
By providing a layer of polyurethane elastomer on the opposite side of the first clamping plate 11 and the second clamping plate 12, damage to the suspension unit 5 during clamping is prevented.
In this application, the suspension device 5 is a hoisting wire rope or a steel belt.
During measurement, a brake is manually opened, the base 3 is fixed relative to the elevator bearing beam 8, the clamping mechanism 1 applies pressure or pulling force to the base 3 to enable the elevator to keep a static state, the force measuring mechanism 2 can measure acting force of the clamping mechanism 1 on the base 3 when the elevator keeps a balance state at the moment, and the mass difference between the elevator counterweight and the elevator car can be calculated according to the measured force. Substituting the poor quality and the rated load capacity of the elevator into an elevator balance coefficient calculation formula to calculate the balance coefficient of the elevator, and comparing the calculated elevator balance coefficient with a standard value to obtain a qualified or unqualified detection conclusion.
Specifically, when the elevator balance coefficient is calculated, the following method can be adopted:
the tension value or the pressure value T between the clamping mechanism and the base is measured by the force measuring device, the mass difference (W2-W1) between the elevator counterweight mass W2 and the car mass W1 is calculated according to the tension value or the pressure value T as nT/g (n is the elevator traction ratio, g is the gravity acceleration, T is the tension value or the pressure value between the clamping mechanism and the base measured by the force measuring device, the unit is Newton, and the units of W1 and W2 are kilograms.
According to an elevator balance coefficient formula, a balance coefficient K can be calculated:
k: coefficient of balance of elevator
(W2-W1)g＝nT，
K＝(W2-W1)/Q＝nT/Qg。
In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral combinations thereof; may be an electrical connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail in order not to obscure an understanding of this description.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, system, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, systems, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (10)
1. A force measuring device for detecting the balance coefficient of an elevator is characterized by comprising a measuring body and a base (3), wherein the measuring body comprises a clamping mechanism (1) and a force measuring mechanism (2), and the force measuring mechanism (2) is positioned between the clamping mechanism (1) and the base (3); the clamping mechanism (1) comprises a first clamping plate (11), a second clamping plate (12), a clamping screw (13) and a servo motor, wherein the first clamping plate (11) and the second clamping plate (12) are oppositely arranged, a connecting threaded hole is formed in the first clamping plate (11), a connecting hole is formed in the second clamping plate (12), one end of the clamping screw (13) penetrates through the connecting hole in the second clamping plate (12) and is connected with an output shaft of the servo motor, and the other end of the clamping screw is rotatably connected in the connecting threaded hole of the first clamping plate (11); a clamping space for the suspension device (5) to pass through is arranged between the first clamping plate (11) and the second clamping plate (12).
2. Force-measuring device for elevator balance coefficient detection according to claim 1, characterized in that the force-measuring means (2) is a weighing-type tension-pressure sensor.
3. Force measuring device for elevator balance coefficient detection according to claim 2, characterized in that the lower end of the force measuring means (2) is pressed against the base (3) and the gripping means (1) is pressed against the upper end of the force measuring means (2).
4. Force measuring device for elevator balance coefficient detection according to claim 3, characterized in that the force measuring means (2) is connected at its upper end to the gripping means (1) and at its lower end to the base (3); the base (3) is located at the lower end of the force measuring mechanism (2), provides tension for the force measuring mechanism (2), and is fixed on the elevator bearing beam (8).
5. The force measuring device for detecting the balance coefficient of the elevator according to claim 4, further comprising a tension rope (7), wherein the upper end of the force measuring mechanism (2) is integrated on the second clamping plate (12) of the clamping mechanism (1), the lower end of the force measuring mechanism (2) is provided with a hook or a hanging ring, the middle part of the base (3) is provided with a pull ring hole, a pull ring is fixed in the pull ring hole, one end of the tension rope (7) is fixed with the hook or the hanging ring, and the other end of the tension rope is fixed with the pull ring.
6. The force measuring device for detecting the balance coefficient of the elevator as recited in claim 4, wherein the upper end of the force measuring mechanism (2) is fixed on the second clamping plate (12), the lower end of the force measuring mechanism (2) is provided with a hook, the middle part of the base (3) is provided with a pull ring hole, a pull ring is fixed in the pull ring hole, and the hook is hooked on the pull ring.
7. The force measuring device for detecting the balance coefficient of the elevator according to any one of claims 1 to 6, further comprising a display screen (6), wherein the display screen (6) is a touch screen, and the display screen (6) is installed on the surface of the second clamping plate (12).
8. The force measuring device for detecting the balance coefficient of the elevator as recited in any one of claims 1 to 6, wherein the connecting holes, the connecting threaded holes, the clamping screws (13) and the servo motors are three corresponding ones and arranged in a triangular shape.
9. Force measuring device for elevator balance coefficient detection according to claim 1, characterized in that the surfaces of the opposite sides of the first clamping plate (11) and the second clamping plate (12) are provided with a layer of polyurethane elastomer material.
10. Force measuring device for elevator balance coefficient detection according to claim 1, characterized in that the base (3) is provided with fixing means (4) for fixing with an elevator load beam (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020396825.0U CN211920524U (en) | 2020-03-25 | 2020-03-25 | Force measuring device for elevator balance coefficient detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020396825.0U CN211920524U (en) | 2020-03-25 | 2020-03-25 | Force measuring device for elevator balance coefficient detection |
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| Publication Number | Publication Date |
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| CN211920524U true CN211920524U (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020396825.0U Active CN211920524U (en) | 2020-03-25 | 2020-03-25 | Force measuring device for elevator balance coefficient detection |
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| CN (1) | CN211920524U (en) |
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Effective date of registration: 20210918 Address after: Room 515, building 19, No. 28, Lane 1698, Wangyuan Road, Fengxian District, Shanghai 201400 Patentee after: Huakai Zhilian Elevator Technology Co., Ltd Address before: Room 1804, building F1, Lugu Yuyuan, No.27 Wenxuan Road, Changsha high tech Development Zone, Changsha City, Hunan Province Patentee before: Changsha Zongheng Elevator Engineering Co.,Ltd. |
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