CN212503674U - Aerial work weighing platform - Google Patents
Aerial work weighing platform Download PDFInfo
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- CN212503674U CN212503674U CN202021214626.XU CN202021214626U CN212503674U CN 212503674 U CN212503674 U CN 212503674U CN 202021214626 U CN202021214626 U CN 202021214626U CN 212503674 U CN212503674 U CN 212503674U
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- 238000005303 weighing Methods 0.000 title claims abstract description 29
- 230000008859 change Effects 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 9
- 238000005259 measurement Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model discloses an aerial work weighing platform, which comprises a platform component, a crank arm, a platform bracket, a cantilever beam sensor and a controller; the platform assembly is fixed on the platform bracket, the platform bracket is connected with the crank arm, the cantilever beam sensor is fixed on the platform bracket, and the cantilever beam sensor is connected with the controller; the cantilever beam sensor is used for detecting the pressure change of the working platform load, transmitting a pressure change signal to the controller, and calculating to obtain the platform load through the controller. The utility model discloses an aerial working platform of weighing, the structure is succinct, and pressure transfer is more direct to the cantilever beam sensor, can improve the sensitivity that the cantilever beam sensor gathered pressure, and the pressure of gathering is irrelevant at the platform position with the load, and measuring error is less, sees through the phase effect on probation, can restrict within 5kg at 0-400kg within range error, and measuring effect is comparatively ideal, can effectively protect staff's operation safety.
Description
Technical Field
The utility model relates to an aerial working platform of weighing belongs to the aerial working platform field.
Background
The working platform is an important working device of the aerial work platform, and the safety is particularly important because workers need to work at 20m or higher altitude. The working height of the folding telescopic arm type aerial work platform is 20 meters, the rated load of the platform is 230KG, and when the load of the platform is greater than the rated load, dangerous accidents such as rollover of the working platform or a vehicle body can occur. In order to ensure the accuracy of the load measurement of the working platform, the working platform is required to have an accurate weighing function. The platform weighing device is mainly used for detecting the load of the aerial work platform and controlling the action and safety guarantee of the arm support of the whole vehicle, and the platform weighing detection has very important significance on the action stability and reliability of the whole vehicle.
The structure of the current weighing device is shown in figure 1, the weight of a person or a heavy object is calculated according to the pressure change of a follow-up hydraulic cylinder, the current weighing device mainly comprises a large arm 1, a follow-up hydraulic cylinder 2, a control box 3, a working platform 4, a follow-up hydraulic cylinder hinge point 5, a working platform hinge point 6 and the like, wherein a pressure sensor is additionally arranged on the follow-up hydraulic cylinder 2, when the person stands on the working platform, the weight is transmitted to the follow-up hydraulic cylinder 2 through the working platform, the change of the thrust of the hydraulic cylinder is transmitted to a controller in the control box 3 through the sensor, and the weighed weight is obtained after the calculation of a PLC.
When an object with the weight of P (neglecting the weight of the working platform and being preset during calibration, so that the weighing is not influenced by the weight of the working platform, the weight is the same as the weight of the working platform) is arranged at any position in the working platform, the generated hydraulic cylinder thrust Fc is as follows:
in the formula: p-weight of object, N;
l is the horizontal distance between the object and the hinge point of the working platform, and is mm;
m is the arm of force from the servo hydraulic cylinder to the hinge point of the working platform, and is mm;
the pressure p generated by the pressure sensor is calculated as:
in the formula: a-large cavity area of servo hydraulic cylinder, mm2。
In the formula (2), the force arm M from the servo hydraulic cylinder to the hinge point of the working platform changes along with the difference of the large arm angle, but the value is irrelevant to the change of the pressure of any large arm angle servo hydraulic cylinder when the pressure of the large arm angle servo hydraulic cylinder is analyzed.
The existing weighing device has the following defects:
a. as can be seen from equation (2) and fig. 1, the pressure measured by the pressure sensor has a large relationship with the position of the object, and when the position changes, the pressure value changes, and the maximum value of the position of the folding telescopic arm type aerial work platform is more than one time larger than the minimum value, so the measurement result is inaccurate.
b. Besides the measurement of the pressure of the servo hydraulic cylinder, some working platforms measure the load of the working platform by adopting the stress of a hinge point pin shaft on a sensor, but the problem caused by the change of the load position can not be solved, the aspects are influenced by the load force arm, and the measurement error is larger.
c. The weighing mode easily causes the damage of the pressure sensor, and the sensor is inconvenient to disassemble and assemble.
Disclosure of Invention
Problem to above-mentioned prior art exists, the utility model provides an aerial working platform of weighing guarantees the reliability that the platform weighed and detected, can ensure operation personnel's safety better.
In order to achieve the purpose, the utility model discloses an aerial work weighing platform, which comprises a platform component, a crank arm, a platform bracket, a cantilever beam sensor and a controller;
the platform assembly is fixed on the platform bracket, the platform bracket is connected with the crank arm, the cantilever beam sensor is fixed on the platform bracket, and the cantilever beam sensor is connected with the controller;
the cantilever beam sensor is used for detecting the pressure change of the working platform load, transmitting a pressure change signal to the controller, and calculating to obtain the platform load through the controller.
As an improvement, one side with the notch in the cantilever beam sensor faces downwards to be connected with the platform bracket, the smooth side in the cantilever beam sensor is a sensing surface, and the sensing surface faces upwards to be connected with an upper transverse plate of the platform bracket.
As an improvement, one side with a notch in the cantilever beam sensor is connected with the platform bracket, and the sensing surface is connected with the upper transverse plate of the platform bracket through bolts.
As an improvement, the cantilever beam sensor is in the model of XG-GX 1-10.
As an improvement, the number of the cantilever beam sensors is one.
As an improvement, the platform assembly is fixed on the platform bracket through bolts.
As an improvement, the platform assembly comprises a control box and a working platform.
As an improvement, the platform bracket is connected with the crank arm through a bolt of the crank arm oil cylinder.
Compared with the prior art, the utility model discloses an aerial working platform of weighing, the structure is succinct, and pressure transfer to cantilever beam sensor is more direct, can improve the sensitivity that cantilever beam sensor gathered pressure, and the pressure of gathering is irrelevant at the platform position with the load, and measuring error is less, sees through probation period effect, can restrict within 5kg at 0-400kg within range error, and measuring effect is comparatively ideal, can effectively protect staff's operation safety.
Drawings
FIG. 1 is a schematic structural view of a conventional weighing apparatus;
fig. 2 is a schematic top view of the weighing platform of the present invention;
fig. 3 is a schematic view of the installation structure of the cantilever beam sensor of the present invention;
in the figure: 1. the large arm, 2, a follow-up hydraulic cylinder, 3, a control box, 4, a working platform, 5, a follow-up hydraulic cylinder hinge point, 6, a working platform hinge point, 7, a platform assembly, 8, a cantilever beam sensor, 9, a platform bracket, 10, a crank arm oil cylinder, 11 and an upper transverse plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention.
As shown in fig. 2 and 3, the aerial work weighing platform comprises a platform assembly 7, a crank arm, a platform bracket 9, a cantilever beam sensor 8 and a controller;
the platform assembly 7 is fixed on a platform bracket 9, the platform bracket 9 is connected with a crank arm, the cantilever beam sensor 8 is fixed on the platform bracket 9, and the cantilever beam sensor 8 is connected with the controller;
the cantilever beam sensor 8 is used for detecting the pressure change of the working platform load, transmitting a pressure change signal to the controller, and calculating to obtain the platform load through the controller.
As a modification of the embodiment, the platform assembly 7 is fixed on the platform bracket 9 through bolts, and the platform assembly 7 comprises a control box 3 and a working platform 4.
As an improvement of the embodiment, one side with a notch in the cantilever sensor 2 faces downwards and is connected with the platform bracket 9 through a fixing bolt, the flat side in the cantilever sensor 8 is a sensing surface, the sensing surface faces upwards as a stress surface and is connected with the upper transverse plate 11 of the platform bracket 9 through the fixing bolt, so that the cantilever sensor 8 is fixed on the platform bracket 9, and the whole working platform 4 is fixedly connected with the platform bracket 9.
As a modification of the embodiment, the cantilever beam sensor 8 is an XG-GX1-10 cantilever beam weighing sensor; the controller is an IMC-T series 2840 controller.
As a modification of the embodiment, the number of the cantilever beam sensors 8 mounted on each trolley is one, so that the accuracy of the measurement result is ensured.
As a modification of the embodiment, the platform bracket 9 is connected to the crank arm by a bolt of the crank arm cylinder 10.
When the working platform 4 is under the action of load, firstly, the acting force is transmitted to the platform bracket 9, the upper transverse plate 11 connected with the cantilever beam sensor 8 of the platform bracket 9 can exert a downward pressure on the cantilever beam sensor 8, and the other end of the cantilever beam sensor 8 is fixed on the platform bracket 9, so that the stressed surface of the cantilever beam sensor 8 is deformed under the direct pressure action of the platform, and the deformation quantity of the cantilever beam sensor 8 is converted into a current signal to enter the controller, and the weight of the load can be calculated through analysis.
Because each trolley is provided with the cantilever beam sensor 8, if the weight value obtained after the cantilever beam sensor 8 is subjected to linear treatment is y, the weight born by the hanging basket is y;
namely: y-kx + b (3)
In the formula: y is the weight of the working platform, kg;
x is the cantilever sensor input value, kg;
k, b-proportionality coefficient.
I.e. the sum of the basket bearing weight y and the cantilever beam sensor input.
From equation (3), can see out that the weight of object can be represented by the force that cantilever beam sensor measured, and it is relevant only with the input value of sensor promptly cantilever beam sensor's deformation volume, and is irrelevant with the position that the object was located, consequently, the utility model discloses a weighing platform can calculate the weight of object more accurately.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.
Claims (8)
1. A high-altitude operation weighing platform comprises a platform component (7) and a crank arm, and is characterized by further comprising a platform bracket (9), a cantilever beam sensor (8) and a controller;
the platform assembly (7) is fixed on a platform bracket (9), the platform bracket (9) is connected with the crank arm, the cantilever beam sensor (8) is fixed on the platform bracket (9), and the cantilever beam sensor (8) is connected with the controller;
the cantilever beam sensor (8) is used for detecting the pressure change of the working platform load, transmitting a pressure change signal to the controller, and calculating to obtain the platform load through the controller.
2. An aerial work weighing platform as defined in claim 1, characterised in that the notched side of the cantilever beam sensor (8) is connected downwards to the platform bracket (9), the flat side of the cantilever beam sensor (8) is a sensing side, and the sensing side is connected upwards to the upper cross-plate (11) of the platform bracket (9).
3. The aerial work weighing platform of claim 2, wherein the notched surface of the cantilever beam sensor (8) is connected to the platform bracket (9) and the sensing surface is connected to the upper cross plate (11) of the platform bracket (9) by bolts.
4. An aerial work weighing platform as claimed in claim 1 or claim 2 wherein the cantilever beam sensor (8) is of the type XG-GX 1-10.
5. An aerial work weighing platform as claimed in claim 1, characterised in that the number of cantilever beam sensors (8) is one.
6. An aerial work weighing platform as claimed in claim 1 wherein the platform assembly (7) is bolted to the platform bracket (9).
7. An aerial work weighing platform as claimed in claim 6 wherein the platform assembly (7) comprises a control box (3) and a work platform (4).
8. An aerial work weighing platform as claimed in claim 1 wherein the platform bracket (9) is connected to the crank arm by bolts from a crank arm cylinder (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021214626.XU CN212503674U (en) | 2020-06-28 | 2020-06-28 | Aerial work weighing platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021214626.XU CN212503674U (en) | 2020-06-28 | 2020-06-28 | Aerial work weighing platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212503674U true CN212503674U (en) | 2021-02-09 |
Family
ID=74439958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021214626.XU Active CN212503674U (en) | 2020-06-28 | 2020-06-28 | Aerial work weighing platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212503674U (en) |
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2020
- 2020-06-28 CN CN202021214626.XU patent/CN212503674U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: XUZHOU XCMG SCHWING MACHINERY Co.,Ltd. Assignor: XCMG FIRE-FIGHTING SAFETY EQUIPMENT Co.,Ltd. Contract record no.: X2023980043879 Denomination of utility model: High altitude work weighing platform Granted publication date: 20210209 License type: Common License Record date: 20231020 |