Precast pile centrifugal mold vibration detection device to prevent mud splashing

Abstract

This utility model relates to a precast pile centrifugal mold runout detection device to prevent mud splashing. It includes an L-shaped mounting base, the vertical connecting surface of which is connected to the end face of the centrifuge, and the horizontal connecting surface for mounting a fixed protective cover and a lifting mechanism. The lifting mechanism is fixed inside the fixed protective cover. A movable protective cover and a detection sensor are also installed at the head end of the lifting mechanism. The detection sensor detects the runout of the mold during centrifugal rotation, and the movable protective cover prevents mud splashing during centrifugation. This precast pile centrifugal mold runout detection device uses an eddy current sensor to directly detect the radial runout displacement of the mold inside the centrifuge. This allows for detection even in harsh environments with severe mud contamination, improving the production quality of finished pipe piles and the safety level of the production line, achieving unmanned intelligent and precise detection.

Description

Technical Field

[0001] This utility model relates to the field of automated production of precast concrete piles, and more particularly to the centrifugal process of precast pile pipe piles, specifically referring to a device for detecting the vibration of precast pile centrifugal molds to prevent mud splashing. Background Technology

[0002] The existing centrifugal process for precast concrete piles relies primarily on workers manually adjusting the centrifuge speed by observing changes in the vibration of the pipe mold and the sound of centrifugation. This method is highly dependent on worker skills, cannot be automated, is labor-intensive, and has low efficiency. Furthermore, auxiliary detection methods, such as frequency converter current monitoring, cannot be applied to a unified model due to inconsistencies in pipe mold sizes. Additionally, mud splashing is common and unavoidable during centrifugation. Sensors using laser or photoelectric methods, requiring transmitters and receivers, are easily contaminated and have short lifespans.

[0003] In addition, during the centrifugation process of precast concrete pile production line pipe molds, radial runout of the pipe mold can easily cause production quality problems due to mold deformation or displacement of the centrifuge wheels. Severe runout can also cause the mold to fly out, posing a safety risk.

[0004] Therefore, in order to ensure production quality and reduce safety risks, it is necessary to monitor the pipe mold for jumping in real time and intervene by reducing the speed in a timely manner. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device for detecting the vibration of precast pile centrifugal molds that prevents mud splashing.

[0006] To achieve the above objectives, the present invention provides a precast pile centrifugal mold vibration detection device to prevent mud splashing, as follows:

[0007] The main features of this anti-mud splashing precast pile centrifugal mold runout detection device are as follows: the device includes an L-shaped mounting base, the vertical connecting surface of which is connected to the end face of the centrifuge, and the horizontal connecting surface is used to install a fixed protective cover and a lifting mechanism. The lifting mechanism is installed inside the fixed protective cover for fixation. A movable protective cover and a detection sensor are also installed at the head end of the lifting mechanism. The detection sensor is used to detect the runout of the mold during centrifugal rotation, and the movable protective cover is used to prevent mud splashing during centrifugation.

[0008] Preferably, the lifting mechanism is an electric push rod, and the connecting plate at the head end of the electric push rod is used to install the movable protective cover and the detection sensor.

[0009] Preferably, the movable protective cover covers the outside of the fixed protective cover, and the detection sensor is disposed inside the movable protective cover.

[0010] Preferably, the detection sensor is an eddy current sensor.

[0011] Preferably, the device is installed at the tail centrifuge station, the middle centrifuge station and the head centrifuge station of the centrifuge process section of the precast concrete pile production line, respectively, to detect the runout at the tail end, the middle section and the head end.

[0012] The precast pile centrifugal mold vibration detection device of this utility model, which prevents mud splashing, can detect vibration values ​​in real time during the centrifugation process of the tube mold. It has the advantages of high efficiency, accurate detection, and unmanned operation, and is not affected by mud splashing, making it highly applicable. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the precast pile centrifugal mold vibration detection device for preventing mud splashing according to this utility model.

[0014] Figure 2 This is a side view of the precast pile centrifugal mold vibration detection device for preventing mud splashing according to this utility model.

[0015] Figure 3 This is a schematic diagram showing the application of the anti-mud splashing precast pile centrifugal mold vibration detection device of this utility model to the centrifugal process section of a concrete precast pile production line.

[0016] Figure Labels

[0017] 01 Tube mold

[0018] 02 Centrifuge

[0019] 03L type mounting base

[0020] 04 Fixed protective cover

[0021] 05 Lifting Mechanism

[0022] 06 Activity Protective Cover

[0023] 07 Detection Sensor

[0024] 11. End-of-line centrifuge station

[0025] 12. Intermediate centrifugal station

[0026] 13. Centrifuge station at the head end Detailed Implementation

[0027] To more clearly describe the technical content of this utility model, the following description is provided in conjunction with specific embodiments.

[0028] Before describing the embodiments according to the present invention in detail, it should be noted that, in the following, the terms “comprising,” “including,” or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0029] Please see Figure 1 and 2 As shown, the precast pile centrifugal mold vibration detection device of this utility model for preventing mud splashing includes: an L-shaped mounting base 03, the vertical connecting surface of which is connected to the end face of the centrifuge 02, and the horizontal connecting surface for mounting a fixed protective cover 04 and a lifting mechanism 05. The lifting mechanism 05 is installed inside the fixed protective cover 04 for fixation. A movable protective cover 06 and a detection sensor 07 are also installed at the head end of the lifting mechanism 05. The detection sensor 07 is used to detect the vibration of the tube mold 01 during centrifugal rotation, and the movable protective cover 06 is used to prevent mud splashing during centrifugation.

[0030] In a preferred embodiment of this utility model, the lifting mechanism 05 is an electric push rod, and the connecting plate at the head end of the electric push rod is used to install the movable protective cover 06 and the detection sensor 07.

[0031] In a preferred embodiment of the present invention, the movable protective cover 06 covers the outside of the fixed protective cover 04, and the detection sensor 07 is disposed inside the movable protective cover 06.

[0032] In a preferred embodiment of this utility model, the detection sensor 07 is an eddy current sensor. In practical applications, it can be understood that the eddy current sensor can be replaced by a linear displacement sensor to detect the material by direct contact between the bearing roller and the outer roller of the mold. However, this method requires frequent maintenance and replacement of the bearing, resulting in higher costs.

[0033] like Figure 3 As shown, in a preferred embodiment of the present invention, the device is installed at the tail centrifuge station 11, the middle centrifuge station 12, and the head centrifuge station 13 of the centrifuge process section of the precast concrete pile production line, respectively, to detect the runout at the tail, middle, and head ends.

[0034] In practical applications, lifting mechanisms 05 and eddy current sensors are installed at the head, middle, and tail sections of the centrifuge station in the offline process section of the precast concrete pile production line. Due to their unique sensing characteristics, eddy current sensors only detect the position of metal. After calibration, they can accurately detect real-time radial displacement within a range of 0-50mm. Furthermore, the eddy current sensors are protected by a non-metallic protective cover (i.e., a movable protective cover 06). When slurry is generated during centrifugation and covers the outer shell, the sensing distance and accuracy of the eddy current sensors remain unaffected, allowing the centrifuge to operate reliably in such harsh environments. Simultaneously, for pipe molds 01 of different diameters, an internal DC motor is installed to drive the lifting mechanism, thus adapting to different diameter pipe mold types in each workshop. Its specific working principle is as follows: After the centrifugation process is started in tube mold 01, the position of the detection device rises, the eddy current sensor stops when it reaches a suitable range, the current detection value of the eddy current sensor is calibrated, and the detection value is compared with the calibrated value in real time to obtain the radial displacement value of the tube mold; if the displacement value exceeds the mold skipping threshold, a signal is sent to the PLC to reduce the speed and extend the centrifugation time, and an alarm message is sent to the control system. Throughout the centrifugation process, mold skipping is automatically identified and controlled without manual intervention, which is highly efficient and provides sensitive and direct detection.

[0035] This invention relates to a precast pile centrifugal mold runout detection device that prevents mud splashing. Using an eddy current sensor, the device directly detects the radial runout displacement of the mold inside the centrifuge, enabling detection even in harsh environments with severe mud contamination. Furthermore, the device boasts a long service life, simple maintenance, and real-time runout monitoring during centrifugation, effectively improving the production quality of finished pipe piles and enhancing production line safety, achieving intelligent and precise monitoring.

[0036] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

Claims

1. A precast pile centrifugal mold bounce detection device for preventing mud splashing, characterized in that, The device includes an L-shaped mounting base (03), the vertical connecting surface of which is connected to the end face of the centrifuge (02), and the horizontal connecting surface for mounting a fixed protective cover (04) and a lifting mechanism (05). The lifting mechanism (05) is installed inside the fixed protective cover (04) for fixation. A movable protective cover (06) and a detection sensor (07) are also installed at the head end of the lifting mechanism (05). The detection sensor (07) is used to detect the amount of vibration of the tube mold (01) during centrifugal rotation, and the movable protective cover (06) is used to prevent mud splashing during centrifugation.

2. The precast pile centrifugal mould bounce detection device for preventing mud splashing according to claim 1, characterized in that, The lifting mechanism (05) is an electric push rod, and the connecting plate at the head end of the electric push rod is used to install the movable protective cover (06) and the detection sensor (07).

3. The precast pile centrifugal mould mud splashing prevention device of claim 1, wherein, The movable protective cover (06) covers the outside of the fixed protective cover (04), and the detection sensor (07) is disposed inside the movable protective cover (06).

4. The precast pile centrifugal mould mud splashing prevention device of claim 1, wherein, The detection sensor (07) is an eddy current sensor.

5. The precast pile centrifugal mould jumping detection device against mud splashing according to any one of claims 1 to 4, characterized in that, The devices are installed at the tail centrifuge station (11), the middle centrifuge station (12), and the head centrifuge station (13) of the centrifuge process section of the precast concrete pile production line, respectively, to detect the runout at the tail, middle and head ends.

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