Hook pressure type weighing sensor and hook head electronic scale for nuclear power ring lifting

Abstract

The application relates to a hook pressure type weighing sensor in the technical field of cranes and a hook head electronic scale for nuclear power ring hoisting, the hook head electronic scale for nuclear power ring hoisting is provided with a hook pressure type weighing sensor, the hook pressure type weighing sensor comprises an upper hoisting piece, a lower hoisting piece and a pressure type weighing sensor, the upper hoisting piece comprises a group of oppositely arranged upper hoisting plates, the two upper hoisting plates are fixed through an upper pin shaft, the lower hoisting piece comprises a lower hoisting plate and a lower pin shaft fixed to the top end of the lower hoisting plate, the lower pin shaft penetrates through lower through holes in the bottom ends of the two upper hoisting plates, the pressure type weighing sensor is a group, is fixed to the bottom ends of the two upper hoisting plates respectively, and the two pressure type weighing sensors support two ends of the lower pin shaft respectively. The hook pressure type weighing sensor and the hook head electronic scale for nuclear power ring hoisting adopt a downward pressing structure, realize the weighing measurement of the electronic scale, greatly improve the measurement precision compared with a tension type structure, guarantee the stability and safety of the measurement, and provide strong support for higher requirement application occasions.

Description

Technical Field

[0001] This application relates to the field of crane technology, and in particular to a hook pressure type load cell and a hook electronic scale for nuclear power plant ring cranes having the hook pressure type load cell. Background Technology

[0002] In crane lifting systems, pressure-type load cells are installed at both ends of the load-bearing shaft to measure its load capacity. The weight of the load is sensed by the stress deformation of the strain gauges and their mounting holes.

[0003] Existing hook scales generally use tension-type load cells. For example, the weighing mechanisms of the crane hook scale with authorization number CN2620691Y and the hook scale with authorization number CN203011499U both apply tension to the load cell at the hook to achieve weighing measurement. However, because the hook will wobble to some extent, the measurement accuracy and safety stability of this type of tension-type load cell cannot be guaranteed, making it unsuitable for demanding applications. Utility Model Content

[0004] The purpose of this application is to provide a hook pressure type load cell that is easy to assemble, has good stability, and high measurement accuracy, and a hook electronic scale for nuclear power plant ring cranes that has the hook pressure type load cell.

[0005] To achieve the above objectives, this utility model provides a hook pressure-type load cell, including an upper lifting component, a lower lifting component, and pressure-type load cells. The upper lifting component includes a set of opposing upper lifting plates, which are parallel to each other and fixed together by an upper pin. The upper pin is located at the top of the two upper lifting plates, and a set of opposing lower through holes are formed at the bottom of the two upper lifting plates. The lower lifting component includes a lower lifting plate and a lower pin fixed at the top of the lower lifting plate. The lower pin passes through the lower through holes at the bottom of the two upper lifting plates and is parallel to the upper pin. The pressure-type load cells are a set, respectively fixed at the bottom of the two upper lifting plates, and each pressure-type load cell supports both ends of the lower pin. When the lower lifting plate is subjected to force, the lower pin can apply pressure to the pressure-type load cells.

[0006] To facilitate the installation of the upper pin, a set of oppositely arranged upper through holes are provided at the top of the two upper hanging plates, and the upper pin passes through the two upper through holes.

[0007] To achieve relative fixation, both ends of the upper pin are locked together by a set of upper baffles and upper hanging plates.

[0008] To ensure the stability of the lower hanging plate, the top of the lower hanging plate is located in the gap between the two upper hanging plates, and a pair of limiting plates that can prevent the lower hanging plate from rotating around the lower pin are fixed on both sides of the two upper hanging plates.

[0009] To facilitate the assembly of the lower hanging plate and the lower pin, the top of the lower hanging plate is fixed to the lower pin by a first screw.

[0010] To facilitate the assembly and disassembly of the pressure load cell, both ends of the pressure load cell are fixed to the upper hanging plate by second screws.

[0011] To further ensure the stability and effectiveness of the test, the pressure-type load cell has an arc-shaped support in the middle that can support the lower pin.

[0012] To facilitate the installation of electronic components, battery boxes and transmitter instrument boxes are fixed on the two upper hanging plates respectively.

[0013] This utility model also provides a hook electronic scale for nuclear power plant hoisting, wherein the hook electronic scale is equipped with the above-mentioned hook pressure type weighing sensor.

[0014] In summary, this utility model has the following beneficial effects: the hook pressure type weighing sensor and the hook electronic scale for nuclear power plant ring cranes adopt a downward pressure structure to realize the weighing measurement of the electronic scale. Compared with the tension type structure, it greatly improves the measurement accuracy, ensures the stability and safety of the measurement, and provides strong support for more demanding applications. Attached Figure Description

[0015] Figure 1 This is a front view of the hook pressure type weighing sensor of this utility model;

[0016] Figure 2 This is a side view of the hook pressure type weighing sensor of this utility model. Detailed Implementation

[0017] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0018] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "side", "end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Example 1

[0020] like Figure 1 , Figure 2The hook pressure type load cell shown includes an upper lifting component, a lower lifting component, and a pressure load cell 13;

[0021] The upper lifting component includes a set of opposing upper lifting plates 1. The two upper lifting plates 1 are rectangular plate structures and are arranged in parallel. The two upper lifting plates 1 are fixed together by an upper pin 2. The top of the two upper lifting plates 1 is provided with a set of opposing upper through holes. The upper pin 2 passes through the two upper through holes and is located at the top of the two upper lifting plates 1. At the same time, both ends of the upper pin 2 are locked to the upper lifting plates 1 by a set of upper baffles 3. Both ends of the upper pin 2 are provided with lifting eye screws 4 to facilitate pulling the upper pin 2. The upper baffles 3 and the upper lifting plates 1 are detachable by screws 5. The bottom of the two upper lifting plates 1 is provided with a set of opposing lower through holes.

[0022] The lower suspension component includes a lower suspension plate 14 and a lower pin 11 fixed to the top of the lower suspension plate 14. The top of the lower suspension plate 14 is fixed to the lower pin 11 by a first screw 9. The lower pin 11 passes through the lower through hole at the bottom of the two upper suspension plates 1 and is parallel to the upper pin 2. The top of the lower suspension plate 14 is located in the gap between the two upper suspension plates 1. A pair of limiting plates 8 that can prevent the lower suspension plate 14 from rotating around the lower pin 11 are fixed on both sides of the two upper suspension plates 1. The limiting plates 8 are detachable from the lower suspension plate 14 by screws 10.

[0023] The pressure weighing sensors 13 are a set, and are respectively fixed to the bottom of the two upper hanging plates 1 by the second screws 12. The two pressure weighing sensors 13 support the two ends of the lower pin 11 respectively. The top center of the pressure weighing sensor 13 has an arc-shaped support part that can support the lower pin 11.

[0024] In addition, battery boxes 6 and transmitter instrument boxes 7 are fixed to the outer sides of the two upper hanging plates 1, respectively, for powering and controlling the relevant electronic components.

[0025] The bottom end of the lower hanging plate 14 has a third through hole connected to the hook head. When the lower hanging plate 14 is subjected to force, the lower pin 11 is pressed down. The lower pin 11 can apply pressure to the pressure type weighing sensor 13, thereby sensing the weight of the load.

[0026] Example 2

[0027] This utility model also provides a hook-type electronic scale for nuclear power plant hoists. The hook-type electronic scale for nuclear power plant hoists is equipped with the above-mentioned hook pressure type load cell. When the hook of the hook-type electronic scale for nuclear power plant hoists applies force to the lower hanging plate 14, the lower pin shaft 11 applies pressure to the pressure type load cell 13, thereby sensing the weight of the load and ensuring measurement accuracy.

[0028] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape, principle and application direction of this application should be covered within the scope of protection of this application.

Claims

1. A hook pressure type load cell, comprising an upper lifting component, a lower lifting component, and a pressure type load cell, characterized in that: The upper suspension component includes a set of opposing upper suspension plates, which are parallel to each other and fixed together by an upper pin. The upper pin is located at the top of the two upper suspension plates, and a set of opposing lower through holes are opened at the bottom of the two upper suspension plates. The lower suspension component includes a lower suspension plate and a lower pin fixed at the top of the lower suspension plate. The lower pin passes through the lower through holes at the bottom of the two upper suspension plates and is parallel to the upper pin. The pressure load cells are a set, which are respectively fixed at the bottom of the two upper suspension plates, and the two pressure load cells support the two ends of the lower pin. When the lower suspension plate is subjected to force, the lower pin can apply pressure to the pressure load cells.

2. The hook pressure type load cell according to claim 1, characterized in that: The top of the two upper hanging plates has a set of oppositely arranged upper through holes, and the upper pin passes through the two upper through holes.

3. The hook pressure type load cell according to claim 2, characterized in that: The two ends of the upper pin are locked together by a set of upper baffles and upper hanging plates.

4. The hook pressure type load cell according to claim 1, characterized in that: The top of the lower hanging plate is located in the gap between the two upper hanging plates, and a pair of limiting plates that can prevent the lower hanging plate from rotating around the lower pin are fixed on both sides of the two upper hanging plates.

5. The hook pressure type load cell according to claim 4, characterized in that: The top of the lower hanging plate is fixed to the lower pin shaft by the first screw.

6. The hook pressure type load cell according to claim 1, characterized in that: The pressure-type weighing sensor is fixed to the upper hanging plate at both ends by second screws.

7. The hook pressure type load cell according to claim 6, characterized in that: The pressure-type weighing sensor has an arc-shaped support in the middle that can support the lower pin.

8. The hook pressure type load cell according to claim 1, characterized in that: The battery box and the transmitter instrument box are fixed on the two upper hanging plates respectively.

9. A hook-type electronic scale for nuclear power plant ring lifting, characterized in that: The hook-type weighing sensor as described in any one of claims 1-8 is installed on the electronic scale for the nuclear power plant hoisting hook.

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