CN212621066U - Weighing buffer device for working platform - Google Patents
Weighing buffer device for working platform Download PDFInfo
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- CN212621066U CN212621066U CN202021340858.XU CN202021340858U CN212621066U CN 212621066 U CN212621066 U CN 212621066U CN 202021340858 U CN202021340858 U CN 202021340858U CN 212621066 U CN212621066 U CN 212621066U
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- weighing
- weighing frame
- frame
- buffer
- spring
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- 238000005303 weighing Methods 0.000 title claims abstract description 142
- 230000003139 buffering effect Effects 0.000 claims abstract description 4
- 238000005381 potential energy Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Abstract
The utility model discloses a work platform buffer that weighs, including work fence, fixed bolster, first weighing frame, second weighing frame, weighing sensor, first weighing frame is articulated with work fence and fixed bolster upper end respectively, and the second weighing frame is articulated with work fence and fixed bolster lower extreme respectively, and weighing sensor installs between first weighing frame and second weighing frame, including buffer, buffer installs on first weighing frame and second weighing frame, and buffer is spacing and the buffering to first weighing frame and second weighing frame relative motion. The utility model is used for alleviate the impact of weighing sensor, prevent that weighing sensor from receiving the impact damage.
Description
Technical Field
The utility model relates to the field of machinary, in particular to work platform buffer that weighs.
Background
The aerial work platforms are all equipped with a moment balance system, a weighing device in the moment balance system is the most critical part, and accurate weighing plays an extremely important role in safe overturn prevention of the vehicle. How to effectively protect the weighing sensor and reduce the impact on the weighing sensor is a necessary consideration.
In the existing weighing structure of a working platform, as shown in fig. 1, a fixed support 1 and a working column 9 are hinged together through four holes a, b, c and d on a first weighing frame 6.1 and a second weighing frame 6.2 to form a weighing parallelogram mechanism. The load cell 8 is mounted on the second weigh frame 6.2 between the first weigh frame 6.1 and the second weigh frame 6.2.
When a load is placed in the workbar 9, the workbar 9 moves downwards due to gravity, the distance L1 increases, causing the dimension L3 to decrease to 0 and thus press against the load cell 8 detection head. The weighing sensor 8 senses the pressure change and converts the pressure change into an electric signal to be transmitted to the computer, and the computer calculates the actual weight according to the signal.
The prior art has the following disadvantages:
when the working rail 9 is moved upward, the distance L1 becomes smaller, that is, the parallelogram ab link rotates upward about the point a, and the cd link rotates upward about the point c, resulting in an increase in the dimension L3. When the working rail 9 falls due to gravity, L3 will decrease rapidly to 0, at which time the gravitational potential energy of the working rail 9 is converted into an impact of the load cell 8. This multiple times results in insensitivity or damage to the load cell 8.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a work platform buffer that weighs for alleviate the impact of weighing sensor.
In one aspect, the utility model provides a work platform buffer that weighs, including work fence, fixed bolster, first weighing frame, second weighing frame, weighing sensor, first weighing frame is articulated with work fence and fixed bolster upper end respectively, and the second weighing frame is articulated with work fence and fixed bolster lower extreme respectively, and weighing sensor installs between first weighing frame and second weighing frame, including buffer, buffer installs on first weighing frame and second weighing frame, and buffer is spacing and the buffering to first weighing frame and second weighing frame relative motion.
Furthermore, the buffer device comprises a spring, a screw rod and a nut, the screw rod is connected with the first weighing frame and the second weighing frame and is fixed through the nut, and the spring is installed on the screw rod.
Furthermore, two ends of the spring are respectively abutted against the second weighing frame and the nut, or two ends of the spring are respectively abutted against the first weighing frame and the second weighing frame.
Furthermore, the two ends of the spring are respectively provided with a baffle, a gasket is arranged between the screw rod and the first weighing frame, and the screw rod penetrates through the gasket, the first weighing frame, the second weighing frame, the spring and the front baffle and the rear baffle and then is fixed through nuts.
Further, first weighing frame is provided with the downwardly extending board, and the second weighing frame is provided with the upwards extending board, and weighing sensor installs and upwards extends between the board at first weighing frame downwardly extending board and second weighing frame, and first weighing frame downwardly extending board and the upwards extending board of second weighing frame are connected to the screw rod and are fixed through the nut.
Furthermore, a hinge point b between the first weighing frame and the upper end of the working column, a hinge point a between the first weighing frame and the upper end of the fixed support, a hinge point d between the second weighing frame and the lower working column, and a hinge point c between the second weighing frame and the lower fixed support; and the hinge point b, the hinge point a, the hinge point d and the hinge point c form a parallelogram.
Further, weighing sensor installs on first weighing frame downwardly extending board or the second weighing frame upwardly extending board, and weighing sensor is located parallelogram, and is located the screw rod top, and the screw rod is located pin joint c and pin joint d line top.
The utility model discloses a work platform buffer that weighs compares prior art beneficial effect and lies in:
when the working column moves downwards, the distance L1 becomes larger, namely the parallelogram ab line rotates downwards around the point a, and the cd line rotates downwards around the point c, so that the dimension L3 becomes smaller. And at the moment, the buffer device plays a role in buffering, the impact of the weighing sensor is relieved, and the relative movement of the first weighing frame and the second weighing frame is limited.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a schematic diagram of a prior art work platform weighing apparatus;
FIG. 2 is a schematic structural view of the working platform weighing buffer device of the present invention;
FIG. 3 is a schematic view of the assembly structure of the weighing buffer device of the working platform of the present invention;
fig. 4 is the utility model discloses a work platform buffer that weighs principle structure sketch map.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 2, the utility model provides a work platform buffer that weighs, including work fence 9, fixed bolster 1, first weighing frame 6.1, second weighing frame 6.2, weighing sensor 8, buffer. The buffer device comprises a spring 5, a screw rod 2, a nut 3, a gasket 7 and a baffle 4.
As shown in fig. 3, the first weighing frame 6.1 is hinged with the upper ends of the working column 9 and the fixed bracket 1 respectively, and the second weighing frame 6.2 is hinged with the lower ends of the working column 9 and the fixed bracket 1 respectively. The first weighing frame 6.1 is provided with a downward extending plate, the second weighing frame 6.2 is provided with an upward extending plate, the weighing sensor 8 is installed between the downward extending plate of the first weighing frame 6.1 and the upward extending plate of the second weighing frame 6.2, and the screw 2 is connected with the downward extending plate of the first weighing frame 6.1 and the upward extending plate of the second weighing frame 6.2 and is fixed through the nut 3. The spring 5 is arranged on the screw rod 2, and two ends of the spring 5 are respectively propped against the second weighing frame 6.2 and the nut 3. The two ends of the spring 5 are respectively provided with a baffle 4, a gasket 7 is arranged between the screw rod 2 and the first weighing frame 6.1, and the screw rod 2 passes through the gasket 7, the first weighing frame 6.1, the second weighing frame 6.2, the spring 5 and the front and rear baffles 4 and then is fixed through a nut 3.
A hinge point b between the first weighing frame 6.1 and the upper end of the working column 9, a hinge point a between the first weighing frame 6.1 and the upper end of the fixed support 1, a hinge point d between the second weighing frame 6.2 and the lower end working column 9, and a hinge point c between the second weighing frame 6.2 and the lower end fixed support 1; and the hinge point b, the hinge point a, the hinge point d and the hinge point c form a parallelogram. Weighing sensor 8 installs on first weighing frame 6.1 downwardly extending board or second weighing frame 6.2 upwardly extending board, and weighing sensor 8 is located the parallelogram, and is located screw rod 2 top, and screw rod 2 is located pin joint c and pin joint d line top.
As shown in fig. 4, when the working column 9 is moved up and down due to unevenness of the ground surface in the transportation state or the traveling of the vehicle, the distance L1 becomes smaller when the working column 9 is moved up, that is, the parallelogram ab line is rotated up about the point a, and the cd line is rotated up about the point c, resulting in the size L3 becoming larger. The spring 5, which is now inserted between the first weighing carriage 6.1 and the second weighing carriage 6.2, is compressed (the dimension L2 becomes smaller), and the compression of the spring 5 will convert most of the gravitational potential energy of the upward movement of the working rail 9. Therefore, the increase of the L3 value can be alleviated, the increase of the gravitational potential energy of the working column 9 can be reduced, and the impact of the symmetrical weight sensor 8 can be alleviated. The screw 2 and the nut 3 limit the relative movement of the first weighing frame 6.1 and the second weighing frame 6.2. When the operating bar 9 is operating normally (L3 equals 0), the spring 5 is not compressed and therefore does not affect the accuracy of the weighing.
In the second solution of the present invention, the spring 5 can be installed between the first weighing frame 6.1 and the second weighing frame 6.2, and the two ends of the spring 5 are respectively supported on the first weighing frame 6.1 and the second weighing frame 6.2 (not shown in the figure). When the ground is uneven, the working rail 9 is caused to move up and down, and when the working rail 9 moves down, the distance L1 becomes larger, that is, the parallelogram ab line rotates downwards around the point a, and the cd line rotates downwards around the point c, which results in the size L3 becoming smaller. At this time, the spring 5 installed between the first weighing frame 6.1 and the second weighing frame 6.2 is compressed, and the compression of the spring 5 will convert most of the impact force of the downward movement of the working column 9, so as to relieve the impact of the weighing sensor 8.
The techniques not described above are common general knowledge of the skilled person. The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a work platform buffer that weighs, including work fence (9), fixed bolster (1), first weighing frame (6.1), second weighing frame (6.2), weighing sensor (8), first weighing frame (6.1) is articulated with work fence (9) and fixed bolster (1) upper end respectively, second weighing frame (6.2) is articulated with work fence (9) and fixed bolster (1) lower extreme respectively, weighing sensor (8) are installed between first weighing frame (6.1) and second weighing frame (6.2), a serial communication port, including buffer, buffer installs on first weighing frame (6.1) and second weighing frame (6.2), buffer is spacing and the buffering to first weighing frame (6.1) and second weighing frame (6.2) relative motion.
2. The work platform weighing buffer device according to claim 1, wherein the buffer device comprises a spring (5), a screw rod (2) and a nut (3), the screw rod (2) is connected with the first weighing frame (6.1) and the second weighing frame (6.2) and is fixed through the nut (3), and the spring (5) is installed on the screw rod (2).
3. The work platform weighing buffer device according to claim 2, wherein two ends of the spring (5) abut against the second weighing frame (6.2) and the nut (3) respectively, or two ends of the spring (5) abut against the space between the first weighing frame (6.1) and the second weighing frame (6.2) respectively.
4. The work platform weighing buffer device according to claim 3, wherein two ends of the spring (5) are respectively provided with a baffle (4), a gasket (7) is arranged between the screw rod (2) and the first weighing frame (6.1), and the screw rod (2) passes through the gasket (7), the first weighing frame (6.1), the second weighing frame (6.2), the spring (5) and the front and rear baffles (4) and then is fixed through the nut (3).
5. The work platform weighing buffer device according to claim 4, characterized in that the first weighing frame (6.1) is provided with a downward extending plate, the second weighing frame (6.2) is provided with an upward extending plate, the weighing sensor (8) is installed between the downward extending plate of the first weighing frame (6.1) and the upward extending plate of the second weighing frame (6.2), and the screw (2) is connected with the downward extending plate of the first weighing frame (6.1) and the upward extending plate of the second weighing frame (6.2) and fixed by the nut (3).
6. The work platform weighing buffer device of claim 5, wherein the first weighing frame (6.1) is hinged with the upper end of the working column (9) at a point b, the first weighing frame (6.1) is hinged with the upper end of the fixed bracket (1) at a point a, the second weighing frame (6.2) is hinged with the lower end of the working column (9) at a point d, and the second weighing frame (6.2) is hinged with the lower end of the fixed bracket (1) at a point c; and the hinge point b, the hinge point a, the hinge point d and the hinge point c form a parallelogram.
7. The work platform weighing buffer device according to claim 6, characterized in that the load cell (8) is mounted on a downwardly extending plate of the first weighing frame (6.1) or an upwardly extending plate of the second weighing frame (6.2), the load cell (8) is located in the parallelogram and above the screw (2), and the screw (2) is located above the line connecting the hinge point c and the hinge point d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021340858.XU CN212621066U (en) | 2020-07-09 | 2020-07-09 | Weighing buffer device for working platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021340858.XU CN212621066U (en) | 2020-07-09 | 2020-07-09 | Weighing buffer device for working platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212621066U true CN212621066U (en) | 2021-02-26 |
Family
ID=74744613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021340858.XU Active CN212621066U (en) | 2020-07-09 | 2020-07-09 | Weighing buffer device for working platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212621066U (en) |
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2020
- 2020-07-09 CN CN202021340858.XU patent/CN212621066U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A weighing buffer device for working platform Effective date of registration: 20220112 Granted publication date: 20210226 Pledgee: Agricultural Bank of China Limited Ningxiang sub branch Pledgor: Hunan Xingbang Intelligent Equipment Co.,Ltd. Registration number: Y2022430000002 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231110 Granted publication date: 20210226 Pledgee: Agricultural Bank of China Limited Ningxiang sub branch Pledgor: Hunan Xingbang Intelligent Equipment Co.,Ltd. Registration number: Y2022430000002 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |