An adjustable force-transmitting continuous drop hammer suitable for multi-point ground motion indoor experiments
A technology of ground vibration and drop weight, applied in the field of laboratory vibration source excitation devices, can solve problems such as large randomness of energy loss, and achieve the effects of good economy and environmental protection, large excitation energy and convenient operation.
Active Publication Date: 2017-02-22
TIANJIN UNIV
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In order to solve the technical problems in the known technology, the present invention provides an adjustable force-transmitting continuous drop hammer suitable for multi-point earthquake vibration indoor experiments. The device inherits and develops the advantages of the existing gravity hammer and improves its The disadvantage of high randomness of energy loss when the weight falls, and realizes the excitation of continuous and wide-area vibration sources
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:
[0022] see Figure 1 to Figure 6 , an adjustable force-transmitting continuous drop hammer suitable for indoor experiments of multi-point earthquakes, comprising a base 1 on which two left and right uprights 2 are fixed, and the tops of the two uprights 2 are fixed A crossbeam 5 is connected, and a positioning beam 3 is fixedly connected in the middle of the two columns 2 .
[0023] In the positioning beam 3, multi-stage firing pins 8 are arranged side by side sequentially from left to right, corresponding to each level of firing pins 8 is a vertical running channel in the positioning beam 3, and each of the running channels is provided on both sides. There is a limiting chamber perpendicular to it, and a positioning device is installed in t...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an adjustable force-transmitting type continuous drop hammer suitable for multi-point seismic oscillation indoor experiment. The adjustable force-transmitting type continuous drop hammer comprises a base, wherein left and right stand columns are fixed on the base; beams are fixedly connected on the tops of the two stand columns; a positioning beam is fixedly connected between the stand columns; a plurality of stages of striking needles are in parallel arranged in the positioning beam from the left to the right in sequence; force-transmitting drop hammer which is in sliding connection with the two stand columns is arranged on the upper parts of the two stand columns; the force-transmitting drop hammer is positioned between the beam and the positioning beam; an electric hoist is arranged on the top of the beam; the electric hoist is used for pulling an electromagnetic sucker disc to move; the electromagnetic sucker disc is arranged above the center of the force-transmitting drop hammer. According to the adjustable force-transmitting type continuous drop hammer disclosed by the invention, the advantages that the existing gravity hammer is great in excitation energy, good in loading stability and safe in vibrating process are inherited and developed, and the excitation of the continuous and wide-area vibration source is realized; the adjustable property of impact force and drop hammer time difference can be realized.
Description
technical field [0001] The invention relates to a laboratory vibration source excitation device, in particular to a force-transmitting continuous drop hammer with adjustable time intervals suitable for laboratory research on multi-point earthquakes. Background technique [0002] The research on multi-point ground motion input in the laboratory is to use specific materials to make a model simulating the stratum structure and building structures, shock the experimental model through the vibration source excitation device, measure the response of the model under the impact, and use the imaging equipment to The response process is recorded and then analyzed and calculated. [0003] Vibration source excitation devices commonly used in laboratories at this stage include gravity hammers, small-caliber rifles, explosives, and electromagnetic hammers. The excitation methods of small-caliber rifles and explosives in these vibration source excitation devices have a wide range of appli...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/147
Inventor 柳国环高云起
Owner TIANJIN UNIV