Hydraulic vibration table for concrete prefabricated part pouring

Abstract

The invention discloses a hydraulic vibration table for concrete prefabricated part pouring, and relates to the technical field of concrete prefabricated part pouring, the hydraulic vibration table comprises a pouring table, second hydraulic devices are installed on the two sides of the pouring table, and the output end, facing the pouring table, of each second hydraulic device is connected with a first push plate located in the pouring table; clamping plates are arranged on the opposite sides of the first push plates, an air bag is installed between each clamping plate and the corresponding first push plate, and an air bin is installed outside the pouring table. Buffering protection is provided for the mold through the synergistic effect of the air bag and the air bin, the sealing bin and the sliding block are matched to generate a damping effect on vibration of the vibration motor, high-frequency vibration energy transmitted to an external structure by the vibration motor is attenuated, a resonance source is effectively restrained, and meanwhile, the service life of the mold is prolonged. The vibration device recovers external vibration energy which should be eliminated originally through mutual cooperation of the air inlet valve and the air outlet valve, recovery and reutilization of the vibration energy are completed, and the energy efficiency of equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of precast concrete part casting, in particular to a hydraulic vibration table for precast concrete part casting. Background Art

[0002] With the continuous development of the construction industry, the requirements for the quality and efficiency of precast concrete parts are increasing. Traditional precast casting can no longer meet the needs of large-scale, high-quality precast production. Hydraulic vibration tables can provide more powerful, stable and uniform vibration effects, thereby effectively improving the density and strength of precast concrete parts, reducing internal bubbles and pores, improving product quality, and meeting the high performance requirements of modern buildings for precast parts, such as the demand for high-quality precast components in large-scale construction projects and bridge construction.

[0003] The structure of a traditional hydraulic vibrating table for pouring precast concrete parts mainly includes the following parts: a table body, which is the main structure of the vibrating table and is usually a flat plate with a certain area and strength, used to directly support the concrete precast part mold. The table body needs to have sufficient rigidity and strength to withstand the pressure and dynamic load during the concrete pouring process. Its surface is generally relatively flat and smooth to facilitate the placement of the mold and subsequent cleaning. The hydraulic system provides the pressure oil required by the vibrating table and is equivalent to the power source of the vibrating table. It converts the mechanical energy of the motor into the pressure energy of the hydraulic oil, providing power support for actuators such as hydraulic cylinders. Its power and flow rate need to be selected according to the working requirements of the vibrating table. The vibration system, commonly used, includes inertial vibrators and electromagnetic vibrators. The inertial vibrator generates centrifugal force through the rotation of the unbalanced weight, thereby causing the table body to vibrate. The electromagnetic vibrator uses the action of electromagnetic force to vibrate the table body. The vibration frequency and amplitude of the exciter are adjustable to meet the pouring requirements of different precast concrete parts.

[0004] The current hydraulic vibrating table used for pouring precast concrete parts is prone to resonance during actual use, thereby damaging the components within the device. Therefore, a hydraulic vibrating table for pouring precast concrete parts has been designed to solve the problem of device resonance. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a hydraulic vibration table for pouring precast concrete parts to solve the technical problem of resonance when using traditional devices.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a hydraulic vibrating table for casting precast concrete parts, comprising a casting table, second hydraulic devices are installed on both sides of the casting table, and the output end of each second hydraulic device facing the casting table is connected to a first push plate located inside the casting table, a clamping plate is provided on the opposite side of each first push plate, and an air bag is installed between each clamping plate and the corresponding first push plate, an air chamber is installed outside the casting table, and the air chamber is communicated with the corresponding air bag.

[0007] By adopting the above technical solution, after the required mold is placed in the casting table, the second hydraulic device drives the first push plate forward. After reaching the predetermined position, the air chamber is started and a large amount of gas is filled into the airbag, thereby pushing the clamping plate to fit the mold, thereby completing the clamping of the mold. During this period, the airbag pushes the clamping plate to contact the mold, avoiding a direct rigid collision between the clamping plate and the mold. As the airbag expands, the clamping pressure applied by the clamping plate to the mold gradually increases, playing a buffering role in the clamping process, avoiding damage to the mold due to excessive clamping force. After clamping is completed, as the device is started, the airbag can provide elastic buffering during vibration, absorb the impact energy transmitted from the mold, cut off the resonance transmission path, and protect important structures within the device.

[0008] The present invention is further configured such that a first hydraulic device is installed at both ends of the casting platform, and each first hydraulic device is connected to a second push plate at its output end facing the casting platform, each second push plate is provided with a vibration device with its output end facing the casting platform, and a hydraulic press is installed in both the first hydraulic device and the second hydraulic device.

[0009] By adopting the above technical solution, the first hydraulic device drives the second push plate to move the vibration device, which can adapt to the vibration requirements of molds of different sizes.

[0010] The present invention is further configured such that the vibration device is composed of a plurality of vibration motors, and sealed chambers are installed at the upper and lower ends of the vibration motor of each vibration device, and a sliding contact slider is provided inside each sealing chamber, and each slider is in sealed sliding contact with the inner wall of the corresponding sealing chamber, and each slider slides through the corresponding sealing chamber at one end away from the corresponding vibration device, and the ends of the sliders that pass through the corresponding sealing chambers on the same horizontal plane are commonly connected to a limiting block, and the limiting block is connected to the second push plate.

[0011] By adopting the above technical solution, as the vibration motor in the vibration device starts, the vibration motor begins to vibrate, thereby driving the slider in the sealed chamber to start shaking. Since the sealed chamber is a sealed environment, the gas in the sealed chamber constitutes a "gas spring" at this time, which has a damping effect on the vibration of the vibration motor, attenuating the high-frequency vibration energy transmitted to the external structure, effectively suppressing the resonance source, and preventing the vibration from being transmitted to other structures through the limit block.

[0012] The present invention is further configured such that an air inlet valve connected to the corresponding sealed chamber is installed on one side of both ends of each sealed chamber, and an air outlet valve connected to the corresponding sealed chamber is installed on the other side of both ends of each sealed chamber, and each sealed chamber is connected to the air chamber through the corresponding air outlet valve.

[0013] By adopting the above technical solution, during the shaking process of the slider, the slider first slides to one side. At this time, the compressed gas flows into the air chamber through the corresponding air outlet valve. Then the slider slides in the opposite direction, and the external gas enters the sealed chamber through the corresponding air inlet valve. This is repeated, and the compressed gas is continuously transported into the air chamber, thereby recovering the external vibration energy that should have been eliminated. Finally, the gas in the air chamber is filled into the airbag during the next use, completing the recovery and reuse of the vibration energy, thereby improving the energy efficiency of the equipment.

[0014] The present invention is further configured such that a plurality of damping rods are connected between the second push plate and the vibration device.

[0015] By adopting the above technical solution, the damping rod is connected between the vibration device and the second push plate, forming a second damping defense line, further absorbing the residual vibration generated by the vibration device, preventing it from reacting to the second push plate and its associated structure to cause vibration, and enhancing stability.

[0016] The present invention is further configured such that the output end of the vibration device and the surface of the clamping plate are both covered with polyurethane rubber.

[0017] By adopting the above technical solution, polyurethane rubber covers the output end of the vibration device and the surface of the clamping plate, effectively preventing wear and noise caused by hard contact between the metal and the mold, while providing slight additional damping to improve the vibration transmission characteristics.

[0018] The present invention is further configured such that a gas storage compartment and a control module are installed in the gas bin.

[0019] By adopting the above technical solution, the air chamber can not only provide a stable air source for the airbag, but also accurately control the gas pressure and flow in the airbag through the control module. This design can further improve the cushioning and clamping performance of the airbag, and meet the requirements of different concrete prefabricated parts casting processes for clamping force and vibration cushioning. After the processing is completed, the control module will discharge the gas in the airbag, thereby releasing the clamping of the mold.

[0020] In summary, the present invention mainly has the following beneficial effects:

[0021] The present invention provides buffering protection for the mold through the synergistic effect of the airbag and the air chamber. The sealing chamber and the slider cooperate to also produce a damping effect on the vibration of the vibration motor, attenuating the high-frequency vibration energy transmitted to the external structure, and effectively suppressing the resonance source. At the same time, the vibration device cooperates with the air inlet valve and the air outlet valve to recover the external vibration energy that should have been eliminated, completing the recovery and reuse of vibration energy and improving the energy efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a top cross-sectional view of the overall structure of the present invention;

[0024] Figure 3 It is a front cross-sectional view of the overall structure of the present invention;

[0025] Figure 4 It is a first side cross-sectional view of the overall structure of the present invention;

[0026] Figure 5 It is a second side cross-sectional view of the overall structure of the present invention;

[0027] Figure 6 For the present invention Figure 2 A magnified view of the structure at point A;

[0028] Figure 7 For the present invention Figure 5 A magnified view of the structure at point B.

[0029] In the figure: 1. Casting table; 2. First hydraulic device; 3. Second hydraulic device; 4. Air chamber; 5. First push plate; 6. Clamping plate; 7. Second push plate; 8. Air bag; 9. Damping rod; 10. Vibration device; 11. Sealing chamber; 12. Slider; 13. Inlet valve; 14. Outlet valve; 15. Limit block. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0031] The following describes an embodiment of the present invention based on its overall structure.

[0032] A hydraulic vibrating table for pouring precast concrete parts, such as Figure 1-7As shown, it includes a casting platform 1, and second hydraulic devices 3 are installed on both sides of the casting platform 1, and the output end of each second hydraulic device 3 facing the casting platform 1 is connected to a first push plate 5 located inside the casting platform 1, and a clamping plate 6 is provided on the opposite side of each first push plate 5, and an air bag 8 is installed between each clamping plate 6 and the corresponding first push plate 5. An air chamber 4 is installed outside the casting platform 1, and the air chamber 4 is connected to the corresponding air bag 8. After the required mold is placed in the casting platform 1, the second hydraulic device 3 drives the first push plate 5 to move forward. After reaching the predetermined position, the air chamber 4 is activated to release a large amount of gas. The airbag 8 is filled to push the clamping plate 6 to fit the mold, thereby completing the clamping of the mold. During this period, the airbag 8 pushes the clamping plate 6 to contact the mold, avoiding direct rigid collision between the clamping plate 6 and the mold. As the airbag 8 expands, the clamping pressure applied by the clamping plate 6 to the mold gradually increases, playing a buffering role in the clamping process, avoiding damage to the mold due to excessive clamping force. After clamping is completed, as the device is started, the airbag 8 can provide elastic buffering during vibration, absorb the impact energy transmitted from the mold, cut off the resonance transmission path, and protect important structures in the device.

[0033] Then, if Figure 1-7 As shown, a first hydraulic device 2 is installed at both ends of the casting platform 1, and each first hydraulic device 2 is connected to a second push plate 7 at its output end facing the casting platform 1. Each second push plate 7 is provided with a vibration device 10 with its output end facing the casting platform 1. Hydraulic presses are installed in both the first hydraulic device 2 and the second hydraulic device 3. The first hydraulic device 2 drives the second push plate 7 to move the vibration device 10, which can adapt to the vibration requirements of molds of different sizes.

[0034] During this period, if Figure 1-7 As shown, the vibration device 10 is composed of multiple vibration motors. The upper and lower ends of the vibration motor of each vibration device 10 are equipped with sealed chambers 11, and the interior of each sealed chamber 11 is in sliding contact with a slider 12. Each slider 12 is in sealed sliding contact with the inner wall of the corresponding sealed chamber 11. The end of each slider 12 away from the corresponding vibration device 10 slides through the corresponding sealed chamber 11. The ends of the sliders 12 located in the same horizontal plane that pass through the corresponding sealed chamber 11 are all connected to the limiting block 15, and the limiting block 15 is connected to the second push plate 7. As the vibration motor in the vibration device 10 is started, the vibration motor begins to vibrate, thereby driving the slider 12 in the sealed chamber 11 to start shaking. Since the sealed chamber 11 is a sealed environment, the gas in the sealed chamber 11 constitutes a "gas spring" at this time, which damps the vibration of the vibration motor, attenuates the high-frequency vibration energy transmitted to the external structure, effectively suppresses the resonance source, and prevents the vibration from being transmitted to other structures through the limiting block 15.

[0035] At the same time, if Figure 1-7As shown, one side of both ends of each sealed chamber 11 is equipped with an air inlet valve 13 connected to the corresponding sealed chamber 11, and the other side of both ends of each sealed chamber 11 is equipped with an air outlet valve 14 connected to the corresponding sealed chamber 11. Each sealed chamber 11 is connected to the air chamber 4 through the corresponding air outlet valve 14. During the shaking of the slider 12, the slider 12 first slides to one side. At this time, the compressed gas flows into the air chamber 4 through the corresponding air outlet valve 14. Then the slider 12 slides in the opposite direction, and the external gas enters the sealed chamber 11 through the corresponding air inlet valve 13. This is repeated, and the compressed gas is continuously transported into the air chamber 4, thereby recovering the external vibration energy that should have been eliminated. Finally, the gas in the air chamber 4 is filled into the airbag 8 during the next use, completing the recovery and reuse of the vibration energy, thereby improving the energy efficiency of the equipment.

[0036] Further, such as Figure 1-7 As shown, a number of damping rods 9 are connected between the second push plate 7 and the vibration device 10. The damping rods 9 are connected between the vibration device 10 and the second push plate 7 to form a second damping defense line, which further absorbs the residual vibration generated by the vibration device 10, prevents it from reacting to the second push plate 7 and its associated structures to cause vibration, and enhances stability.

[0037] In addition, the output end of the vibration device 10 and the surface of the clamping plate 6 are covered with polyurethane rubber. The polyurethane rubber covers the output end of the vibration device and the surface of the clamping plate 6, effectively preventing wear and noise caused by hard contact between the metal and the mold, while providing slight additional damping to improve the vibration transmission characteristics.

[0038] Finally, an air storage cabin and a control module are installed in the air silo 4, so that the air silo 4 can not only provide a stable air source for the air bag 8, but also realize precise control of the gas pressure and flow in the air bag 8 through the control module. This design can further improve the cushioning and clamping performance of the air bag 8, and meet the requirements of different concrete prefabricated casting processes for clamping force and vibration cushioning. After the processing is completed, the control module will discharge the gas in the air bag 8, thereby releasing the clamping of the mold.

[0039] On the basis of the above structure, in this embodiment, although an embodiment of the present invention has been shown and described, this specific embodiment is only an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A hydraulic vibrating table for pouring precast concrete parts, comprising a pouring table (1), characterized in that: A second hydraulic device (3) is installed on both sides of the casting platform (1), and the output end of each second hydraulic device (3) facing the casting platform (1) is connected to a first push plate (5) located inside the casting platform (1), and a clamping plate (6) is provided on the opposite side of each first push plate (5), and an air bag (8) is installed between each clamping plate (6) and the corresponding first push plate (5), and an air chamber (4) is installed outside the casting platform (1), and the air chamber (4) is connected to the corresponding air bag (8).

2. The hydraulic vibrating table for pouring precast concrete parts according to claim 1, characterized in that: Both ends of the casting platform (1) are equipped with first hydraulic devices (2), and the output end of each first hydraulic device (2) facing the casting platform (1) is connected to a second push plate (7), and each second push plate (7) is provided with a vibration device (10) with the output end facing the casting platform (1).

3. The hydraulic vibrating table for pouring precast concrete parts according to claim 2, characterized in that: Hydraulic presses are installed in both the first hydraulic device (2) and the second hydraulic device (3).

4. The hydraulic vibrating table for pouring precast concrete parts according to claim 2, characterized in that: The vibration device (10) is composed of a plurality of vibration motors. The upper and lower ends of the vibration motor of each vibration device (10) are both equipped with sealed chambers (11), and the interior of each sealed chamber (11) is in sliding contact with a slider (12). Each slider (12) is in sealed sliding contact with the inner wall of the corresponding sealed chamber (11). The end of each slider (12) away from the corresponding vibration device (10) slides through the corresponding sealed chamber (11). The ends of the sliders (12) located on the same horizontal plane that pass through the corresponding sealed chamber (11) are both connected to a limiting block (15), and the limiting block (15) is connected to the second push plate (7).

5. The hydraulic vibrating table for pouring precast concrete parts according to claim 4, characterized in that: An air inlet valve (13) communicating with the corresponding sealed chamber (11) is installed on one side of both ends of each sealed chamber (11), and an air outlet valve (14) communicating with the corresponding sealed chamber (11) is installed on the other side of both ends of each sealed chamber (11). Each sealed chamber (11) is connected to the air chamber (4) through the corresponding air outlet valve (14).

6. The hydraulic vibrating table for pouring precast concrete parts according to claim 2, characterized in that: A plurality of damping rods (9) are connected between the second push plate (7) and the vibration device (10).

7. The hydraulic vibrating table for pouring precast concrete parts according to claim 2, characterized in that: The output end of the vibration device (10) and the surface of the clamping plate (6) are both covered with polyurethane rubber.

8. The hydraulic vibrating table for pouring precast concrete parts according to claim 1, characterized in that: An air storage compartment and a control module are installed in the air bin (4).

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