Node vibration suppression device

Abstract

The utility model provides a node vibration suppression device, which belongs to the technical field of vibration dampers used in mine transfer stations, and comprises a column connecting plate, a beam connecting plate, a constraint steel plate and energy-consuming soft steel, the two sides of the restraining steel plate are fixedly welded to the column connecting plate and the beam connecting plate respectively, energy dissipation element connecting holes are formed in the restraining steel plate, and the energy dissipation soft steel is fixed into the energy dissipation element connecting holes through threads so as to be fixed between the column connecting plate and the beam connecting plate. The column connecting plate is vertically arranged at the column end of the beam-column joint, the beam connecting plate is horizontally arranged and fixed at the beam end of the beam-column joint, and the column connecting plate and the beam connecting plate are vertically arranged; the number of the restraining steel plates is three. The utility model provides a node vibration suppression device which can reduce structural vibration caused by operation of power equipment under the condition that an original building structure is not changed.

Description

Technical Field

[0001] The utility model belongs to the technical field of vibration reduction devices used in mine transfer stations, and in particular relates to a node vibration suppression device. Background Art

[0002] As the main means of transportation for comprehensive mechanized production in coal mines in my country, belt conveyors play a vital role in coal mines. They are mainly used for the transportation and handling of materials, and can achieve continuous material transportation, thereby improving production efficiency; reducing the burden on workers in carrying heavy objects and improving work safety; they can transport materials of various shapes, sizes and weights, and are suitable for a variety of industries; the length and inclination angle of the conveyor line can be adjusted as needed to adapt to different scenarios; and they can be used in conjunction with other equipment to achieve automated production and improve overall operational efficiency.

[0003] However, due to the limitations of coal mine shaft design and conveyor transportation capacity, multiple belt conveyors are required to complete the transportation task of coal during the production process, resulting in transfer stations with different height differences and rotation angles.

[0004] Mine transfer stations generate significant vibrations during equipment operation. Some transfer equipment must be installed on the second floor or higher, which can have a significant negative impact on the station's integrated building. Vibration control is essential to ensure the proper operation of the equipment. Currently, in buildings containing power equipment, increasing the cross-sectional dimensions of beams, columns, and slabs is often necessary to ensure proper operation. This not only reduces clear height and reduces the available space for equipment, but also increases investment costs. Utility Model Content

[0005] In view of this, the utility model provides a node vibration suppression device, which can reduce the structural vibration caused by the operation of power equipment without changing the original building structure.

[0006] The utility model is achieved in this way:

[0007] The utility model provides a node vibration suppression device, which includes a column connecting plate, a beam connecting plate, a constraint steel plate and energy-absorbing soft steel. The column connecting plate and the beam connecting plate are hingedly installed by pins, and the two sides of the constraint steel plate are welded and fixed to the column connecting plate and the beam connecting plate respectively. An energy-absorbing element connection hole is opened on the constraint steel plate, and the energy-absorbing soft steel is fixed to the inside of the energy-absorbing element connection hole by screw threads to be fixed between the column connecting plate and the beam connecting plate; the column connecting plate is vertically arranged at the column end of the beam-column node, the beam connecting plate is horizontally arranged and fixed to the beam end of the beam-column node, and the column connecting plate and the beam connecting plate are vertically arranged; the constraint steel plate includes three pieces, which are respectively welded and fixed at the vertical center line and left and right sides of the column connecting plate and the beam connecting plate.

[0008] On the basis of the above technical solution, the node vibration suppression device of the utility model can also be improved as follows:

[0009] Among them, the corresponding end positions of the column connecting plate and the beam connecting plate are provided with hinged supports at intervals, and the hinged supports are provided with hinged connection holes. The hinged supports at both ends are arranged in an alternating manner and are hingedly fixed by the pins.

[0010] Furthermore, the hinged support is provided with a rounded corner structure, and the pin is a screw structure.

[0011] Furthermore, the outer diameter of the pin matches the inner diameter of the hinge connection hole.

[0012] Furthermore, a first thread is provided inside the energy-consuming element connection hole.

[0013] Furthermore, a second thread is provided at the installation position corresponding to the installation position of the energy-absorbing soft steel and the constraint steel plate, and the second thread matches the first thread; the energy-absorbing soft steel and the constraint steel plate are installed and fixed by the first thread inside the energy-absorbing element connection hole and the second thread outside the energy-absorbing soft steel.

[0014] Furthermore, bolt holes are provided on the column connecting plate and the beam connecting plate. The column connecting plate is fixed to the column end of the beam-column node by passing bolts through the bolt holes on the column connecting plate, and the beam connecting plate is fixed to the beam end of the beam-column node by passing bolts through the bolt holes on the beam connecting plate.

[0015] Furthermore, six bolt holes are provided on the column connecting plate and the hinged support.

[0016] Furthermore, the restraining steel plate is a fan-shaped structure, and its fan-shaped angle corresponds to the angle between the column connecting plate and the beam connecting plate.

[0017] Furthermore, the length of the side where the three restraining steel plates are in contact with the column connecting plate is the same as the height of the column connecting plate; on the side where the restraining steel plates are in contact with the beam connecting plate, the length of the restraining steel plates on the left and right sides is the same as the width of the beam connecting plate, and the length of the middle restraining steel plate is less than or equal to the length of the restraining steel plates on the left and right sides.

[0018] The beneficial effects of adopting the above-mentioned improved solution are: the design of the hinged support allows a certain degree of relative rotation, thereby reducing the internal force concentration caused by vibration.

[0019] Rounded corner structure: helps reduce stress concentration and extend service life.

[0020] Bolt and thread connections make it easier to assemble and disassemble components.

[0021] Enhanced connection strength: Reasonable thread design increases the firmness of the connection and prevents loosening during vibration.

[0022] The fan-shaped structure constrains the steel plate to make the force more uniform, which helps to improve the overall vibration resistance.

[0023] Compared with the prior art, the beneficial effects of the node vibration suppression device provided by the utility model are:

[0024] The column connecting plate is responsible for fixing the entire device to the column and bearing the lateral load from the beam. Its main functions include:

[0025] Load-bearing capacity transfer: Through bolts and welding, the load from the beam is effectively transferred to the column to ensure the overall stability of the structure.

[0026] Stiffness provision: The thickness and material selection of the column connection plate affect the stiffness of the node and improve the seismic performance of the overall structure.

[0027] The beam connecting plate is fixed to the beam body, playing the role of connection and support. Its main effects include:

[0028] Horizontal support: Provide horizontal support for the beam to ensure that the beam does not deform excessively when in working condition.

[0029] Vibration suppression: Through the hinged connection with the column connecting plate, the vibration transmission can be effectively reduced and the seismic resistance of the structure can be improved.

[0030] The restraining steel plate is used to strengthen the connection between the column connection plate and the beam connection plate, with the following effects:

[0031] Improve structural integrity: Fixing by welding increases the rigidity of the nodes and reduces the relative displacement caused by vibration.

[0032] Energy absorption: If designed as a fan-shaped structure, it can better disperse and absorb the energy transmitted from the upper and lower structures, reducing the impact of vibration.

[0033] Energy-absorbing mild steel is used as a connecting element to absorb energy through deformation. Its effects are mainly reflected in:

[0034] Energy dissipation: When subjected to external vibration, energy-dissipating mild steel undergoes plastic deformation, thereby effectively absorbing vibration energy and reducing the amplitude of vibration transmitted to the structure.

[0035] Enhanced safety: Improves the seismic resistance and safety of the structure and prevents brittle fracture under extreme conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0037] Figure 1 It is a structural schematic diagram of a node vibration suppression device;

[0038] Figure 2 This is the structural diagram of the beam and column connection plate;

[0039] Figure 3 Structural diagram for the restrained steel plate;

[0040] Figure 4 It is the structural diagram of energy-consuming mild steel;

[0041] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0042] 1. Column connecting plate; 10. Hinge connecting hole; 2. Beam connecting plate; 3. Constraint steel plate; 4. Pin; 5. Energy-absorbing mild steel; 6. Hinge support; 7. Bolt hole; 8. Energy-absorbing element connecting hole; 9. Beam-column node. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0044] like Figure 1-4 As shown, it is an embodiment of a node vibration suppression device provided by the utility model. In this embodiment, it includes a column connecting plate 1, a beam connecting plate 2, a constraint steel plate 3 and an energy-absorbing mild steel 5. The column connecting plate 1 and the beam connecting plate 2 are hingedly installed by a pin 4. The two sides of the constraint steel plate 3 are welded and fixed to the column connecting plate 1 and the beam connecting plate 2 respectively. An energy-absorbing element connecting hole 8 is opened on the constraint steel plate 3. The energy-absorbing mild steel 5 is fixed inside the energy-absorbing element connecting hole 8 by screws to be fixed between the column connecting plate 1 and the beam connecting plate 2; the column connecting plate 1 is vertically arranged at the column end of the beam-column node 9, the beam connecting plate 2 is horizontally arranged and fixed at the beam end of the beam-column node 9, and the column connecting plate 1 and the beam connecting plate 2 are vertically arranged; the constraint steel plate 3 includes three pieces, which are welded and fixed at the vertical center line and left and right sides of the column connecting plate 1 and the beam connecting plate 2 respectively.

[0045] Among them, in the above technical scheme, the corresponding end positions of the column connecting plate 1 and the beam connecting plate 2 are provided with hinged supports 6 at intervals, and the hinged support 6 is provided with a hinged connection hole 10. The hinged supports 6 at both ends are arranged alternately and hingedly fixed by a pin 4.

[0046] Furthermore, in the above technical solution, the hinged support 6 is provided with a rounded corner structure, and the pin 4 is a screw structure.

[0047] Furthermore, in the above technical solution, the outer diameter of the pin 4 matches the inner diameter of the hinge connection hole 10 .

[0048] Furthermore, in the above technical solution, a first thread is provided inside the energy-consuming element connecting hole 8 .

[0049] Furthermore, in the above technical solution, a second thread is provided at the corresponding installation position of the energy-absorbing soft steel 5 and the constraint steel plate 3, and the second thread matches the first thread; the energy-absorbing soft steel 5 and the constraint steel plate 3 are installed and fixed through the first thread inside the energy-absorbing element connection hole 8 and the second thread outside the energy-absorbing soft steel 5.

[0050] Furthermore, in the above technical solution, bolt holes 7 are provided on the column connecting plate 1 and the beam connecting plate 2. The column connecting plate 1 is fixed to the column end of the beam-column node 9 by passing bolts through the bolt holes 7 on the column connecting plate 1, and the beam connecting plate 2 is fixed to the beam end of the beam-column node 9 by passing bolts through the bolt holes 7 on the beam connecting plate 2.

[0051] Furthermore, in the above technical solution, six bolt holes 7 are provided on the column connecting plate 1 and the hinged support 6 .

[0052] Furthermore, in the above technical solution, the restraining steel plate 3 is a fan-shaped structure, and its fan-shaped angle corresponds to the angle between the column connecting plate 1 and the beam connecting plate 2.

[0053] Furthermore, in the above technical solution, the length of the side where the three restraining steel plates 3 are in contact with the column connecting plate 1 is the same as the height of the column connecting plate 1; on the side where the restraining steel plates 3 are in contact with the beam connecting plate 2, the lengths of the restraining steel plates 3 on the left and right sides are the same as the width of the beam connecting plate 2, and the length of the middle restraining steel plate 3 is less than or equal to the lengths of the restraining steel plates 3 on the left and right sides.

[0054] During use, install the column connection plate onto the column, ensuring it is correctly positioned and securely bolted. Align the beam connection plate with the beam and secure it. Ensure a tight connection between the two. Weld or secure the restraining steel plate between the column and beam connection plates to enhance overall rigidity. Secure the energy-absorbing mild steel to the connection plate to ensure it effectively absorbs energy.

[0055] Specifically, the principle of the utility model is: when in use, the beams and columns of the concrete frame of the transfer station will rotate relative to each other when the entire device is fixed at the beam-column node of the transfer station. The relative rotation of the beams and columns will cause the column connecting plate and the beam connecting plate to rotate relative to each other, driving the middle constraint steel plate and the constraint steel plates on both sides to rotate relative to each other, causing the energy-absorbing soft steel to undergo plastic deformation, thereby dissipating the energy caused by the vibration of the equipment. During use, damaged energy-absorbing soft steel can be replaced at any time, thereby improving the service life of the transfer station.

Claims

1. A node vibration suppression device, characterized in that: The utility model comprises a column connection plate (1), a beam connection plate (2), a restraining steel plate (3) and an energy-absorbing mild steel (5); the column connection plate (1) and the beam connection plate (2) are hingedly installed by a pin (4); the two sides of the restraining steel plate (3) are respectively welded and fixed to the column connection plate (1) and the beam connection plate (2); the restraining steel plate (3) is provided with an energy-absorbing element connection hole (8); the energy-absorbing mild steel (5) is fixed inside the energy-absorbing element connection hole (8) by screw thread so as to be fixed between the column connection plate (1) and the beam connection plate (2); the column connection plate (1) is vertically arranged at the column end of the beam-column node (9); the beam connection plate (2) is horizontally arranged and fixed at the beam end of the beam-column node (9); the column connection plate (1) and the beam connection plate (2) are vertically arranged; the restraining steel plate (3) comprises three pieces, which are respectively welded and fixed at the vertical center line and left and right sides of the column connection plate (1) and the beam connection plate (2).

2. A node vibration suppression device according to claim 1, characterized in that: The corresponding end positions of the column connecting plate (1) and the beam connecting plate (2) are both provided with hinged supports (6) at intervals, and hinged connection holes (10) are provided on the hinged supports (6). The hinged supports (6) at both ends are arranged in a staggered manner and are hingedly fixed by the pins (4).

3. A node vibration suppression device according to claim 2, characterized in that: The hinged support (6) is provided with a rounded corner structure, and the pin (4) is a screw structure.

4. A node vibration suppression device according to claim 3, characterized in that: The outer diameter of the pin (4) matches the inner diameter of the hinge connection hole (10).

5. A node vibration suppression device according to claim 4, characterized in that: A first thread is provided inside the energy-consuming element connecting hole (8).

6. A node vibration suppression device according to claim 5, characterized in that: A second thread is provided at a position corresponding to the installation position of the energy-absorbing soft steel (5) and the restraining steel plate (3), and the second thread matches the first thread; the energy-absorbing soft steel (5) and the restraining steel plate (3) are installed and fixed through the first thread inside the energy-absorbing element connection hole (8) and the second thread outside the energy-absorbing soft steel (5).

7. A node vibration suppression device according to claim 6, characterized in that: Bolt holes (7) are provided on both the column connection plate (1) and the beam connection plate (2); the column connection plate (1) is fixed to the column end of the beam-column node (9) by passing bolts through the bolt holes (7) on the column connection plate (1); and the beam connection plate (2) is fixed to the beam end of the beam-column node (9) by passing bolts through the bolt holes (7) on the beam connection plate (2).

8. A node vibration suppression device according to claim 7, characterized in that: Six bolt holes (7) are provided on the column connecting plate (1) and the hinged support (6).

9. A node vibration suppression device according to claim 8, characterized in that: The restraining steel plate (3) is a fan-shaped structure, and its fan-shaped angle corresponds to the angle between the column connecting plate (1) and the beam connecting plate (2).

10. A node vibration suppression device according to claim 9, characterized in that: The length of the side of the three restraining steel plates (3) in contact with the column connecting plate (1) is the same as the height of the column connecting plate (1); the length of the restraining steel plates (3) on the left and right sides of the side in contact with the beam connecting plate (2) is the same as the width of the beam connecting plate (2), and the length of the middle restraining steel plate (3) is less than or equal to the length of the restraining steel plates (3) on the left and right sides.

Images