CN114878752A - Double-frequency ultrasonic cavitation experimental device with multiple degrees of freedom - Google Patents
Double-frequency ultrasonic cavitation experimental device with multiple degrees of freedom Download PDFInfo
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Abstract
The invention relates to a double-frequency ultrasonic cavitation experiment technology, in particular to a double-frequency ultrasonic cavitation experiment device with multiple degrees of freedom. The invention solves the problems of poor adjustment flexibility and low adjustment precision of the ultrasonic tool head caused by the existing double-frequency ultrasonic cavitation experiment technology. A double-frequency ultrasonic cavitation experimental device with multiple degrees of freedom comprises a horizontal bottom plate, two pairs of guide stand columns, two arc-shaped lower constraint blocks, two arc-shaped upper constraint blocks, two arc-shaped sliding seat blocks, two transmission lead screws, two stepping motors, two U-shaped supports, two connecting seat blocks, two hoop clamps, two ultrasonic tool heads, a heating weighing table, a beaker, two air guide tubes, a support stand column A, a support arm, a guide cylinder, a support stand column B and a temperature measuring instrument. The invention is suitable for double-frequency ultrasonic cavitation experiments.
Description
Technical Field
The invention relates to a double-frequency ultrasonic cavitation experiment technology, in particular to a double-frequency ultrasonic cavitation experiment device with multiple degrees of freedom.
Background
The double-frequency ultrasonic cavitation experiment is an important means for researching the ultrasonic cavitation effect. Currently, in order to perform a dual-frequency ultrasonic cavitation experiment, an experimenter typically mounts an ultrasonic tool head on an iron stand. However, in practical applications, the iron stand has the following problems due to the structure thereof: first, because the iron stand has only one degree of freedom, the ultrasonic tool head mounted on the iron stand can only perform height position adjustment, but cannot perform horizontal position adjustment and angle position adjustment, thereby resulting in poor adjustment flexibility of the ultrasonic tool head. Secondly, when the height position of the ultrasonic tool head mounted on the iron stand is adjusted, the ultrasonic tool head can only be manually adjusted, so that the adjustment accuracy of the ultrasonic tool head is low. Therefore, a dual-frequency ultrasonic cavitation experiment device with multiple degrees of freedom is needed to be invented, and the problems that an ultrasonic tool head is poor in adjustment flexibility and low in adjustment accuracy due to the existing dual-frequency ultrasonic cavitation experiment technology are solved.
Disclosure of Invention
The invention provides a double-frequency ultrasonic cavitation experimental device with multiple degrees of freedom, aiming at solving the problems of poor adjustment flexibility and low adjustment precision of an ultrasonic tool head caused by the existing double-frequency ultrasonic cavitation experimental technology.
The invention is realized by adopting the following technical scheme:
a double-frequency ultrasonic cavitation experimental device with multiple degrees of freedom comprises a horizontal bottom plate, two pairs of guide stand columns, two arc-shaped lower constraint blocks, two arc-shaped upper constraint blocks, two arc-shaped sliding seat blocks, two transmission lead screws, two stepping motors, two U-shaped supports, two connecting seat blocks, two hoop clamps, two ultrasonic tool heads, a heating weighing table, a beaker, two air guide tubes, a support stand column A, a support arm, a guide cylinder, a support stand column B and a temperature measuring instrument;
the two pairs of guide upright posts are respectively fixed on the left part and the right part of the upper surface of the horizontal bottom plate; a pair of assembly holes A and a support hole A are formed between the upper surface and the lower surface of each arc-shaped lower constraint block in a penetrating manner, and the support hole A is positioned between the pair of assembly holes A; the two arc-shaped lower restraint blocks are fixedly assembled on the lower parts of the side surfaces of the two pairs of guide stand columns through two pairs of assembly holes A respectively; a pair of assembling holes B and a supporting hole B are formed between the upper surface and the lower surface of each arc-bar-shaped upper constraint block in a penetrating manner, and the supporting hole B is positioned between the pair of assembling holes B; the two arc-shaped upper restraint blocks are fixedly assembled at the upper ends of the side surfaces of the two pairs of guide stand columns through the two pairs of assembly holes B respectively;
a pair of guide holes A and a screw hole are formed between the upper surface and the lower surface of each arc-shaped sliding seat block in a penetrating manner, and the screw hole is positioned between the pair of guide holes A; a pair of guide holes B are formed between the inner side surface and the outer side surface of each arc-shaped sliding seat block in a penetrating manner, and the pair of guide holes B are respectively positioned on two sides of the screw hole; the two arc-shaped strip-shaped sliding seat blocks are respectively assembled on the side surfaces of the two pairs of guide upright posts in a sliding manner through the two pairs of guide holes A; the two transmission screw rods respectively penetrate through the two screw holes; the lower ends of the two transmission screw rods are respectively and rotatably supported in the two support holes A; the upper ends of the two transmission screw rods are respectively and rotatably supported in the two support holes B; the two stepping motors are respectively fixed on the left part and the right part of the upper surface of the horizontal bottom plate, and output shafts of the two stepping motors are upward; the upper ends of output shafts of the two stepping motors are respectively connected with the lower ends of the two transmission screw rods;
two pairs of side edges of the two U-shaped brackets respectively penetrate through the two pairs of guide holes B in a sliding manner, and the inner bottom surfaces of the two U-shaped brackets are respectively in separable contact with the inner side surfaces of the two arc-shaped sliding seat blocks; the head part of each U-shaped bracket is provided with a pair of mutually opposite ear holes in a penetrating way; the tail part of each connecting seat block is provided with a pair of symmetrical convex columns in an extending way; the two connecting seat blocks are rotatably supported in the two pairs of ear holes through the two pairs of convex columns respectively; the two hoop clamps are respectively fixed on the head end surfaces of the two connecting seat blocks; the two ultrasonic tool heads are respectively and fixedly arranged in the two hoop clamps in a penetrating way;
the heating weighing platform is fixed in the middle of the upper surface of the horizontal bottom plate; the beaker is placed on the table top of the heating and weighing table; the two air ducts are sealed and penetrate through the lower part of the side wall of the beaker; the supporting upright column A is fixed at the left part of the upper surface of the horizontal bottom plate; a lantern ring A extends from the tail end face of the supporting arm and is rotatably assembled on the upper part of the side face of the supporting upright post A; a lantern ring B extends from the head end surface of the supporting arm; the material guide cylinder is fixedly arranged in the lantern ring B in a penetrating way; the supporting upright post B is fixed at the right part of the upper surface of the horizontal bottom plate; the thermodetector is fixed in the up end of support post B.
During the use, two step motor all are connected with outside computer, and two air ducts all communicate with outside air supply, have held liquid in the beaker, and two supersound instrument heads all stretch into in the liquid, and the gas core in the liquid is grown, is expanded, is ulcerated under the effect of ultrasonic wave, carries out the dual-frenquency ultrasonic cavitation experiment from this. In the experimental process, if the height and the position of the ultrasonic tool head are required to be adjusted, the stepping motor is controlled to rotate through an external computer, and the stepping motor drives the transmission screw to rotate. Under the drive of the transmission screw rod, the arc-shaped sliding seat block slides and drives the U-shaped support, the connecting seat block, the hoop clamp and the ultrasonic tool head to move together, so that the height position of the ultrasonic tool head is adjusted. If the horizontal position of the ultrasonic tool head is required to be adjusted, the U-shaped support is manually controlled to slide, and the U-shaped support drives the connecting seat block, the hoop clamp and the ultrasonic tool head to move together, so that the horizontal position of the ultrasonic tool head is adjusted. If the angle position of the ultrasonic tool head is required to be adjusted, the connecting seat block is manually controlled to rotate, and the connecting seat block drives the hoop clamp and the ultrasonic tool head to move together, so that the angle position of the ultrasonic tool head is adjusted. If the influence of the liquid temperature on the ultrasonic cavitation needs to be researched, the liquid is heated through a heating weighing platform. In the heating process, the temperature measuring instrument measures and displays the liquid temperature in real time. When the liquid temperature reaches a specified value, heating is stopped, thereby achieving accurate control of the liquid temperature. If the influence of the micro-abrasive particles on ultrasonic cavitation needs to be researched, the supporting arm is manually controlled to rotate, the supporting arm drives the material guide cylinder to reach the upper part of the beaker, and then the micro-abrasive particles are added into the liquid through the material guide cylinder. During the addition, the heating and weighing station measures and displays the total weight of the liquid and the micro-abrasive particles in real time. When the total weight of the liquid and the micro abrasive particles reaches a specified value, the addition of the micro abrasive particles is stopped, thereby realizing the quantitative addition of the micro abrasive particles. If the number of the gas nuclei in the liquid needs to be increased, an external gas source is opened, and the external gas source ventilates the liquid through two gas guide pipes.
Based on the process, compared with the prior double-frequency ultrasonic cavitation experiment technology, the double-frequency ultrasonic cavitation experiment device with multiple degrees of freedom has the following advantages by adopting a brand new structure: firstly, the ultrasonic tool head has multiple degrees of freedom, and not only can be adjusted in height and position, but also can be adjusted in horizontal position and angle and position, so that the adjustment flexibility of the ultrasonic tool head is effectively enhanced. Secondly, when the height position of the ultrasonic tool head is adjusted, the ultrasonic tool head is not adjusted manually but is adjusted electrically, so that the adjustment accuracy of the ultrasonic tool head is effectively improved.
Furthermore, the side surface of each guide upright post is provided with a scale mark A along the length direction; the outer side surface of each U-shaped bracket is provided with a scale mark B along the length direction; the outer end orifice edge of each ear hole is provided with angle scale marks. When the height position of the ultrasonic tool head is adjusted, the height position of the ultrasonic tool head can be accurately read through the scale mark A. When the horizontal position of the ultrasonic tool head is adjusted, the horizontal position of the ultrasonic tool head can be accurately read through the scale marks B. When the angle position of the ultrasonic tool head is adjusted, the angle position of the ultrasonic tool head can be accurately read through the angle scale marks.
The ultrasonic cavitation experiment device is reasonable in structure and ingenious in design, effectively solves the problems of poor adjustment flexibility and low adjustment accuracy of the ultrasonic tool head caused by the existing double-frequency ultrasonic cavitation experiment technology, and is suitable for double-frequency ultrasonic cavitation experiments.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a partially enlarged view of a point a in fig. 1.
In the figure: the device comprises a horizontal bottom plate 1, a guide upright post 2, a lower arc-shaped restraint block 3, an upper arc-shaped restraint block 4, an arc-shaped sliding seat block 5, a transmission screw rod 6, a stepping motor 7, a U-shaped support 8, a connecting seat block 9, a hoop clamp 10, an ultrasonic tool head 11, a heating weighing table 12, a beaker 13, an air guide tube 14, a support upright post A15, a support arm 16, a guide cylinder 17, a support upright post B18, a temperature measuring instrument 19, a scale mark A20, a scale mark B21, an angle scale mark B22, a reinforcing cushion block 23, a connecting rod 24 and an auxiliary hoop.
Detailed Description
A double-frequency ultrasonic cavitation experimental device with multiple degrees of freedom comprises a horizontal bottom plate 1, two pairs of guide upright posts 2, two arc-shaped lower constraint blocks 3, two arc-shaped upper constraint blocks 4, two arc-shaped sliding seat blocks 5, two transmission lead screws 6, two stepping motors 7, two U-shaped supports 8, two connecting seat blocks 9, two hoop clamps 10, two ultrasonic tool heads 11, a heating weighing table 12, a beaker 13, two air guide tubes 14, a support upright post A15, a support arm 16, a guide cylinder 17, a support upright post B18 and a temperature measuring instrument 19;
two pairs of guide upright posts 2 are respectively fixed on the left part and the right part of the upper surface of the horizontal bottom plate 1; a pair of assembly holes A and a support hole A are formed between the upper surface and the lower surface of each arc-shaped lower restraint block 3 in a penetrating manner, and the support hole A is positioned between the pair of assembly holes A; the two arc-shaped lower restraint blocks 3 are fixedly assembled on the lower parts of the side surfaces of the two pairs of guide upright posts 2 through two pairs of assembly holes A respectively; a pair of assembly holes B and a support hole B are formed between the upper surface and the lower surface of each arc-shaped upper restraint block 4 in a penetrating manner, and the support hole B is positioned between the pair of assembly holes B; the two arc-shaped upper restraint blocks 4 are fixedly assembled at the upper ends of the side surfaces of the two pairs of guide stand columns 2 through the two pairs of assembling holes B respectively;
a pair of guide holes A and a screw hole are formed between the upper surface and the lower surface of each arc-shaped sliding seat block 5 in a penetrating manner, and the screw hole is positioned between the pair of guide holes A; a pair of guide holes B are formed between the inner side surface and the outer side surface of each arc-shaped sliding seat block 5 in a penetrating manner, and the pair of guide holes B are respectively positioned on two sides of the screw hole; the two arc strip-shaped sliding seat blocks 5 are respectively assembled on the side surfaces of the two pairs of guide upright posts 2 in a sliding way through the two pairs of guide holes A; the two transmission screw rods 6 respectively penetrate through the two screw holes; the lower ends of the two transmission screw rods 6 are respectively and rotatably supported in the two support holes A; the upper ends of the two transmission screw rods 6 are respectively and rotatably supported in the two support holes B; the two stepping motors 7 are respectively fixed on the left part and the right part of the upper surface of the horizontal bottom plate 1, and output shafts of the two stepping motors 7 are upward; the upper ends of output shafts of the two stepping motors 7 are respectively connected with the lower ends of the two transmission screw rods 6;
two pairs of side edges of the two U-shaped brackets 8 respectively penetrate through the two pairs of guide holes B in a sliding manner, and the inner bottom surfaces of the two U-shaped brackets 8 are respectively in separable contact with the inner side surfaces of the two arc-shaped sliding seat blocks 5; the head part of each U-shaped bracket 8 is provided with a pair of mutually opposite ear holes in a penetrating way; the tail part of each connecting seat block 9 is provided with a pair of symmetrical convex columns in an extending way; the two connecting seat blocks 9 are respectively rotatably supported in the two pairs of ear holes through the two pairs of convex columns; the two hoop clamps 10 are respectively fixed on the head end surfaces of the two connecting seat blocks 9; the two ultrasonic tool heads 11 are respectively and fixedly arranged in the two hoop clamps 10 in a penetrating way;
the heating weighing platform 12 is fixed in the middle of the upper surface of the horizontal bottom plate 1; the beaker 13 is placed on the table top of the heating weighing table 12; the two air ducts 14 are sealed and penetrate through the lower part of the side wall of the beaker 13; the supporting upright A15 is fixed on the left part of the upper surface of the horizontal bottom plate 1; a lantern ring A extends from the tail end face of the support arm 16 and is rotatably assembled on the upper side of the support upright post A15; a lantern ring B extends from the head end surface of the supporting arm 16; the material guide cylinder 17 is fixedly arranged in the lantern ring B in a penetrating way; the supporting upright post B18 is fixed on the right part of the upper surface of the horizontal bottom plate 1; the temperature measuring instrument 19 is fixed on the upper end surface of the support upright post B18.
The side surface of each guide upright post 2 is provided with a scale mark A20 along the length direction; the outer side surface of each U-shaped bracket 8 is provided with a scale mark B21 along the length direction; the outer end orifice edge of each ear hole is provided with angle graduation lines 22.
Two pairs of reinforcing cushion blocks 23 are also included; two pairs of reinforcing cushion blocks 23 are respectively fixed on the left part and the right part of the upper surface of the horizontal bottom plate 1, and the two pairs of reinforcing cushion blocks 23 are respectively arranged below the two arc-shaped lower constraint blocks 3.
The device also comprises two bearings A and two bearings B; the lower ends of the two transmission screw rods 6 are respectively rotatably supported in the two support holes A through two bearings A; the upper ends of the two transmission screw rods 6 are rotatably supported in the two support holes B through two bearings B respectively.
A lightening hole is arranged between the upper surface and the lower surface of each connecting seat block 9 in a penetrating way.
The device also comprises two connecting rods 24 and two auxiliary hoops 25; the two connecting rods 24 are respectively and vertically fixed on the upper surfaces of the two hoop clamps 10; the two auxiliary hoops 25 are respectively fixed on the upper parts of the side surfaces of the two connecting rods 24, and the two auxiliary hoops 25 are respectively hooped on the side surfaces of the two ultrasonic tool heads 11.
The heating weighing platform 12 comprises an electronic scale and an electric heating sheet; the electronic scale is fixed in the middle of the upper surface of the horizontal bottom plate 1; the electric heating plate is fixed on the scale surface of the electronic scale; the upper surface of the electric heating sheet serves as a table top for heating the weighing table 12.
The temperature measuring instrument 19 is a non-contact temperature measuring instrument.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (8)
1. A dual-frequency ultrasonic cavitation experimental device with multiple degrees of freedom is characterized in that: the device comprises a horizontal bottom plate (1), two pairs of guide upright posts (2), two arc-shaped strip-shaped lower restraint blocks (3), two arc-shaped strip-shaped upper restraint blocks (4), two arc-shaped strip-shaped sliding seat blocks (5), two transmission lead screws (6), two stepping motors (7), two U-shaped supports (8), two connecting seat blocks (9), two hoop clamps (10), two ultrasonic tool heads (11), a heating weighing platform (12), a beaker (13), two air guide pipes (14), a support upright post A (15), a support arm (16), a guide cylinder (17), a support upright post B (18) and a temperature measuring instrument (19);
the two pairs of guide upright posts (2) are respectively fixed on the left part and the right part of the upper surface of the horizontal bottom plate (1); a pair of assembly holes A and a support hole A are formed between the upper surface and the lower surface of each arc-shaped lower constraint block (3) in a penetrating manner, and the support hole A is positioned between the pair of assembly holes A; the two arc-shaped lower constraint blocks (3) are fixedly assembled on the lower parts of the side surfaces of the two pairs of guide upright posts (2) through two pairs of assembly holes A respectively; a pair of assembly holes B and a support hole B are formed between the upper surface and the lower surface of each arc-shaped upper restraint block (4) in a penetrating manner, and the support hole B is positioned between the pair of assembly holes B; the two arc-shaped upper restraint blocks (4) are fixedly assembled at the upper ends of the side surfaces of the two pairs of guide upright posts (2) through the two pairs of assembly holes B respectively;
a pair of guide holes A and a screw hole are formed between the upper surface and the lower surface of each arc-shaped sliding seat block (5) in a penetrating manner, and the screw hole is positioned between the pair of guide holes A; a pair of guide holes B are formed between the inner side surface and the outer side surface of each arc-shaped sliding seat block (5) in a penetrating manner, and the pair of guide holes B are respectively positioned on two sides of the screw hole; the two arc strip-shaped sliding seat blocks (5) are respectively assembled on the side surfaces of the two pairs of guide upright posts (2) in a sliding way through the two pairs of guide holes A; the two transmission screw rods (6) respectively penetrate through the two screw holes; the lower ends of the two transmission screw rods (6) are respectively and rotatably supported in the two support holes A; the upper ends of the two transmission screw rods (6) are respectively and rotatably supported in the two support holes B; the two stepping motors (7) are respectively fixed on the left part and the right part of the upper surface of the horizontal bottom plate (1), and output shafts of the two stepping motors (7) are upward; the upper ends of output shafts of the two stepping motors (7) are respectively connected with the lower ends of the two transmission screw rods (6);
two pairs of side edges of the two U-shaped supports (8) respectively penetrate through the two pairs of guide holes B in a sliding mode, and the inner bottom surfaces of the two U-shaped supports (8) are respectively in separable contact with the inner side surfaces of the two arc-shaped sliding seat blocks (5); the head part of each U-shaped bracket (8) is provided with a pair of mutually opposite ear holes in a penetrating way; the tail part of each connecting seat block (9) is provided with a pair of symmetrical convex columns in an extending way; the two connecting seat blocks (9) are respectively rotatably supported in the two pairs of ear holes through the two pairs of convex columns; the two hoop clamps (10) are respectively fixed on the head end surfaces of the two connecting seat blocks (9); the two ultrasonic tool heads (11) are respectively and fixedly arranged in the two hoop clamps (10) in a penetrating way;
the heating weighing platform (12) is fixed in the middle of the upper surface of the horizontal bottom plate (1); the beaker (13) is placed on the table surface of the heating weighing table (12); the two air ducts (14) are sealed and penetrate through the lower part of the side wall of the beaker (13); the supporting upright post A (15) is fixed at the left part of the upper surface of the horizontal bottom plate (1); a lantern ring A extends from the tail end face of the supporting arm (16) and is rotatably assembled at the upper part of the side face of the supporting upright post A (15); a lantern ring B is arranged on the head end surface of the supporting arm (16) in an extending way; the material guide cylinder (17) is fixedly arranged in the lantern ring B in a penetrating way; the supporting upright post B (18) is fixed at the right part of the upper surface of the horizontal bottom plate (1); the temperature measuring instrument (19) is fixed on the upper end surface of the supporting upright post B (18).
2. The dual-frequency ultrasonic cavitation experimental device with multiple degrees of freedom according to claim 1, characterized in that: the side surface of each guide upright post (2) is provided with a scale mark A (20) along the length direction; the outer side surface of each U-shaped bracket (8) is provided with a scale mark B (21) along the length direction; the edge of the outer end orifice of each ear hole is provided with angle scale marks (22).
3. The dual-frequency ultrasonic cavitation experimental device with multiple degrees of freedom according to claim 1, characterized in that: the device also comprises two pairs of reinforcing cushion blocks (23); the two pairs of reinforcing cushion blocks (23) are respectively fixed on the left part and the right part of the upper surface of the horizontal bottom plate (1), and the two pairs of reinforcing cushion blocks (23) are respectively arranged below the two arc-bar-shaped lower constraint blocks (3).
4. The dual-frequency ultrasonic cavitation experimental device with multiple degrees of freedom according to claim 1, characterized in that: the device also comprises two bearings A and two bearings B; the lower ends of the two transmission screw rods (6) are respectively rotatably supported in the two support holes A through two bearings A; the upper ends of the two transmission screw rods (6) are rotatably supported in the two supporting holes B through two bearings B respectively.
5. The dual-frequency ultrasonic cavitation experimental device with multiple degrees of freedom according to claim 1, characterized in that: a lightening hole is arranged between the upper surface and the lower surface of each connecting seat block (9) in a penetrating way.
6. The dual-frequency ultrasonic cavitation experimental device with multiple degrees of freedom according to claim 1, characterized in that: the device also comprises two connecting rods (24) and two auxiliary hoops (25); the two connecting rods (24) are respectively and vertically fixed on the upper surfaces of the two hoop clamps (10); the two auxiliary hoops (25) are respectively fixed on the upper parts of the side surfaces of the two connecting rods (24), and the two auxiliary hoops (25) are respectively hooped on the side surfaces of the two ultrasonic tool heads (11).
7. The dual-frequency ultrasonic cavitation experimental device with multiple degrees of freedom according to claim 1, characterized in that: the heating weighing platform (12) comprises an electronic scale and an electric heating sheet; the electronic scale is fixed in the middle of the upper surface of the horizontal bottom plate (1); the electric heating plate is fixed on the scale surface of the electronic scale; the upper surface of the electric heating sheet is used as a table top of the heating weighing table (12).
8. The dual-frequency ultrasonic cavitation experimental device with multiple degrees of freedom according to claim 1, characterized in that: the temperature measuring instrument (19) is a non-contact temperature measuring instrument.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117140370A (en) * | 2023-10-27 | 2023-12-01 | 中北大学 | Six-degree-of-freedom double-frequency ultrasonic cavitation shot blasting device with special fixture |
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