CN221216908U - Overload limiting device of electric single-beam crane - Google Patents
Overload limiting device of electric single-beam crane Download PDFInfo
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- CN221216908U CN221216908U CN202322646804.6U CN202322646804U CN221216908U CN 221216908 U CN221216908 U CN 221216908U CN 202322646804 U CN202322646804 U CN 202322646804U CN 221216908 U CN221216908 U CN 221216908U
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- pressure sensor
- electric single
- limiting device
- crane
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- 239000002184 metal Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 3
- 241000288140 Gruiformes Species 0.000 description 27
- 238000010586 diagram Methods 0.000 description 3
- 241000124872 Grus grus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Control And Safety Of Cranes (AREA)
Abstract
The utility model relates to an overload limiting device of an electric single-beam crane, which is arranged on the electric single-beam crane, wherein the electric single-beam crane comprises a main beam, an end beam, an electric hoist and a lifting mechanism loop, and the overload limiting device comprises a pressure sensor assembly, a controller and a flange plate; the upper surface of the pressure sensor component is connected with the main beam, the lower surface of the pressure sensor component is connected with the flange, and the flange is connected with the end beam; the pressure sensor assembly is connected with a controller, and the controller is connected into a lifting mechanism loop. Compared with the prior art, the utility model can stably judge overload caused by various different conditions by detecting the pressure born by the main girder of the electric single-girder crane, thereby effectively protecting the operation safety of the crane; the structure is simple, the failure rate is low, and the device can be conveniently installed on an electric single-beam crane; the middle part of the pressure sensor component adopts a hollowing design, so that the material can be saved.
Description
Technical Field
The utility model relates to an electric single-beam crane, in particular to an overload limiting device of the electric single-beam crane.
Background
The electric single-beam crane has wide application, is the most common crane in production enterprises, and particularly relates to a bridge crane in which an electric hoist trolley runs on the lower flange of a main beam and is hung on the lower flange of the main beam. The electric hoist consists of a main beam and two end beams, wherein the main beam is connected with the end beams through high-strength bolts, and one or more electric hoists can be arranged between the main beam and the end beams.
At present, the overload limiting device is generally arranged on the electric hoist, and once an operator performs illegal operations, such as pulling and obliquely hanging, or the height limiting is invalid, the lifting hook fails to stop to the limiting position, so that the overload limiting device is easy to damage and fail. And when the crane carries a plurality of electric hoists, each electric hoist can only limit the lifting capacity of the electric hoist, and the condition that the total lifting capacity exceeds the standard can be caused.
Therefore, how to realize an overload limiting device capable of stably detecting the whole bearing condition of an electric single-beam crane is a technical problem to be solved.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provide an overload limiting device of an electric single-beam crane.
The aim of the utility model can be achieved by the following technical scheme:
According to one aspect of the utility model, an overload limiting device of an electric single-beam crane is provided, the overload limiting device is arranged on the electric single-beam crane, the electric single-beam crane comprises a main beam, an end beam, an electric hoist and a lifting mechanism loop, the overload limiting device comprises a pressure sensor assembly, a controller and a flange plate, the upper surface of the pressure sensor assembly is connected with the main beam, the lower surface of the pressure sensor assembly is connected with the flange plate, and the flange plate is connected with the end beam; the pressure sensor assembly is connected with a controller, and the controller is connected into a lifting mechanism loop.
As a preferable technical scheme, the pressure sensor assembly comprises a pressure sensor and a pressure sensor connecting plate, and the pressure sensor is arranged on the upper surface of the pressure sensor connecting plate.
As a preferred embodiment, the pressure sensor is at least one.
As the preferable technical scheme, grooves corresponding to the pressure sensors one by one are formed in two sides of the upper surface of the pressure sensor connecting plate, and the pressure sensors are embedded in the grooves.
As an optimal technical scheme, the grooves and the pressure sensors are provided with mounting holes, and the mounting holes are through holes.
As a preferable technical scheme, the number of the mounting holes is at least two, and the mounting holes are symmetrically distributed.
As a preferable technical scheme, the middle part of the pressure sensor component is hollowed out.
As a preferable technical scheme, the pressure sensor is made of metal.
As the preferable technical scheme, the device also comprises a high-strength bolt, and the main beam, the pressure sensor component and the flange plate are connected through the high-strength bolt.
As a preferred solution, the flange is welded to the end beam.
Compared with the prior art, the utility model has the following advantages:
1) The utility model can stably judge overload caused by various different conditions by detecting the pressure born by the main girder of the electric single-girder crane, thereby effectively protecting the operation safety of the crane;
2) The utility model has simple structure and low failure rate, and can be conveniently installed on an electric single-beam crane;
3) The pressure sensor component has the advantage that the material can be saved due to the hollowing design in the middle.
Drawings
FIG. 1 is an overall schematic diagram of an overload limiting apparatus for an electric single-beam crane of the present utility model mounted on an electric single-beam crane;
FIG. 2 is a schematic diagram of the pressure sensor assembly of the present utility model as a whole;
FIG. 3 is a schematic view of a pressure sensor and pressure sensor connection plate structure of the present utility model;
FIG. 4 is a block diagram of the signal transmission module of the present utility model in operation;
The reference numerals in fig. 1 indicate:
10. The device comprises a main beam, 11, an end beam, 12, an electric hoist, 2, a pressure sensor assembly, 4 and a flange plate;
the reference numerals in fig. 3 indicate:
20. the pressure sensor, 21, the pressure sensor connecting plate, 210, the groove, 211 and the mounting hole;
the reference numerals in fig. 4 indicate:
13. Lifting mechanism loop, 3, controller.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
The utility model provides an overload limiting device of an electric single-beam crane, which realizes the detection of the whole bearing condition of the electric single-beam crane by detecting the pressure born by a main beam of the electric single-beam crane.
As shown in fig. 1, the device is arranged on an electric single-beam crane, detects the pressure born by a main beam 10 of the electric single-beam crane, protects the operation safety of the crane, and comprises a pressure sensor assembly 2, a controller 3 and a flange 4.
As shown in fig. 1 and 2, the upper surface of the pressure sensor assembly 2 is connected with the main beam 10 of the electric single beam crane, the lower surface of the pressure sensor assembly is connected with the flange 4, and the main beam 10, the pressure sensor assembly 2 and the flange 4 are connected through high-strength bolts. The flange plate 4 is welded on an end beam 11 of the electric single-beam crane. The pressure sensor assembly 2 comprises 1-4 pressure sensors 20 and pressure sensor connecting plates 21, wherein the pressure sensors 20 can be 1-4, the pressure sensor connecting plates 21 are integrally cuboid, two grooves 200 are formed in two sides of the upper surface of the pressure sensor connecting plates, the grooves 200 are used for being embedded into the pressure sensors 20, mounting holes 201 are formed in the grooves 200 and the pressure sensors 20, the mounting holes 201 penetrate through the pressure sensors 20 and the pressure sensor connecting plates 21 and are through holes, the mounting holes 201 are symmetrically arranged, at least two mounting holes 201 are six in the drawing, and the mounting holes 201 are used for high-strength bolts to penetrate through; the middle part of the pressure sensor connecting plate 21 is hollowed out, so that materials can be saved, and the hollowed-out pressure sensor connecting plate 21 is wholly in a shape of a mouth.
The high-strength bolts used for installation are made of high-strength steel or bolts with larger pretightening force are needed, and the bolts can be particularly referred to related national standards published by standard numbers such as GB/T16939-2016 or GB/T3632-2008.
As shown in fig. 4, four pressure sensors 20 are used to detect the pressure on the main beam 10, the detected data is transmitted to the controller 3, and the controller 3 is further transmitted to the hoisting mechanism loop 13.
The working process of the utility model is as follows:
The controller 3 is connected to the lifting mechanism loop 13 of the electric single-beam crane, a limiting value of the bearable pressure of the main beam 10 of the electric single-beam crane is set in the controller 3, the pressure sensor 20 detects the actual bearable pressure value of the main beam 10 at each moment, the detected data are transmitted to the controller 3 for comparison, if the actual bearable pressure of the main beam 10 is greater than the limiting value of the bearable pressure of the main beam 10, the overload is judged, the lifting mechanism loop 13 controls the lifting mechanism to stop rising, and the operation safety of the crane is protected.
While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (10)
1. The overload limiting device of the electric single-beam crane is arranged on the electric single-beam crane and comprises a main beam (10), an end beam (11), an electric hoist (12) and a lifting mechanism loop (13), and is characterized by comprising a pressure sensor assembly (2), a controller (3) and a flange plate (4), wherein the upper surface of the pressure sensor assembly (2) is connected with the main beam (10), the lower surface of the pressure sensor assembly is connected with the flange plate (4), and the flange plate (4) is connected with the end beam (11); the pressure sensor assembly (2) is connected with the controller (3), and the controller (3) is connected into the lifting mechanism loop (13).
2. The overload limiting device of the electric single-beam crane according to claim 1, wherein the pressure sensor assembly (2) comprises a pressure sensor (20) and a pressure sensor connecting plate (21), and the pressure sensor (20) is mounted on the upper surface of the pressure sensor connecting plate (21).
3. Overload limiting device for an electric single-beam crane according to claim 2, wherein the number of pressure sensors (20) is at least one.
4. An overload limiting device for an electric single-beam crane according to claim 3, wherein grooves (200) corresponding to the pressure sensors (20) one by one are formed on two sides of the upper surface of the pressure sensor connecting plate (21), and the pressure sensors (20) are embedded in the grooves (200).
5. The overload limiting device of the electric single-beam crane according to claim 4, wherein the groove (200) and the pressure sensor (20) are provided with mounting holes (201), and the mounting holes (201) are through holes.
6. The overload limiting device of the electric single-beam crane according to claim 5, wherein at least two mounting holes (201) are symmetrically distributed.
7. Overload limiting apparatus for an electric single beam crane as claimed in claim 4 wherein said pressure sensor assembly (2) is hollowed out in the middle.
8. The overload limiting device of the electric single-beam crane according to claim 1, wherein the pressure sensor (20) is a pressure sensor (20) made of metal.
9. Overload limiting device for an electric single-beam crane according to claim 1, further comprising high strength bolts, wherein the main beam (10), the pressure sensor assembly (2) and the flange (4) are connected by means of high strength bolts.
10. Overload limiting device for an electric single-beam crane according to claim 1, characterized in that the flange (4) is welded to the end beam (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322646804.6U CN221216908U (en) | 2023-09-28 | 2023-09-28 | Overload limiting device of electric single-beam crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322646804.6U CN221216908U (en) | 2023-09-28 | 2023-09-28 | Overload limiting device of electric single-beam crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221216908U true CN221216908U (en) | 2024-06-25 |
Family
ID=91565418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322646804.6U Active CN221216908U (en) | 2023-09-28 | 2023-09-28 | Overload limiting device of electric single-beam crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221216908U (en) |
-
2023
- 2023-09-28 CN CN202322646804.6U patent/CN221216908U/en active Active
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