CN107802292B - Ultrasonic probe adjusting method - Google Patents
Ultrasonic probe adjusting method Download PDFInfo
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- CN107802292B CN107802292B CN201711246110.6A CN201711246110A CN107802292B CN 107802292 B CN107802292 B CN 107802292B CN 201711246110 A CN201711246110 A CN 201711246110A CN 107802292 B CN107802292 B CN 107802292B
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- gear
- output
- adjusting
- driven
- hole
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/42—Details of probe positioning or probe attachment to the patient
- A61B8/4209—Details of probe positioning or probe attachment to the patient by using holders, e.g. positioning frames
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
Abstract
The invention relates to an ultrasonic probe adjusting method, which uses an ultrasonic probe handheld bracket for adjustment, wherein the ultrasonic probe handheld bracket comprises a handheld shell, a driving element, a transmission element, a driven element and an ultrasonic probe; the ultrasonic probe adjusting method comprises the following steps. Step 1, reverse transmission connection; step 2, adjusting the reverse transmission speed; step 3, forward transmission connection is performed; the invention relates to an ultrasonic probe adjusting method, which is characterized in that an ultrasonic probe handheld support is used for adjusting, the handheld shell is held by a hand, and then a thumb is used for shifting a manual drive plate, so that the position of an ultrasonic probe can be adjusted; under the condition of keeping the thumb poking direction consistent, the rotating direction of the driven element is adjusted by adjusting the position of the adjusting torsion bar, and the advancing direction or the advancing direction of the ultrasonic probe is adjusted; the speed of travel of the ultrasound probe may also be adjusted.
Description
Technical Field
The invention relates to the technical field of ultrasonic probes, in particular to an ultrasonic probe adjusting method.
Background
Ultrasonic waves are mechanical waves with very high frequency, much higher energy than audible sound waves of the same amplitude, and very high penetration. Ultrasonic waves are used in various industries, as flaw detection in the field of metal manufacturing, and most commonly in the medical industry.
In the ultrasonic detection process, the transmission and reception of ultrasonic waves are realized by an ultrasonic probe. The performance of the ultrasonic probe directly affects the characteristics of the ultrasonic waves and the detection performance of the ultrasonic waves. An ultrasonic probe used in ultrasonic detection is a transducer which realizes the conversion of electric energy and sound energy by utilizing the piezoelectric effect of materials. The key component in an ultrasound probe is a wafer, which is a single or polycrystalline wafer with piezoelectric effect, whose function is to convert electrical energy and acoustic energy into each other.
The position of the ultrasonic probe also influences the final detection result, the ultrasonic probe bracket in the prior art has simple result, the ultrasonic probe position adjusting method is not accurate, and the ultrasonic probe bracket is difficult to adapt to complex detection conditions. Therefore, an adjustable ultrasonic probe bracket needs to be designed, and the position of the ultrasonic probe can be accurately adjusted.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides an ultrasonic probe adjusting method, which comprises the steps of using an ultrasonic probe handheld support to adjust, holding the handheld shell by a hand, and then using a thumb to shift the manual dial to adjust the position of the ultrasonic probe; under the condition of keeping the thumb poking direction consistent, the rotating direction of the driven element is adjusted by adjusting the position of the adjusting torsion bar, and the advancing direction or the advancing direction of the ultrasonic probe is adjusted; the speed of travel of the ultrasound probe may also be adjusted.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an ultrasonic probe adjusting method comprises the steps of adjusting by using an ultrasonic probe handheld support, wherein the ultrasonic probe handheld support comprises a handheld shell, a driving element, a transmission element, a driven element and an ultrasonic probe;
the hand-held housing is a hollow hand-held housing, the hand-held housing includes:
the front output hole is arranged above the front end surface of the handheld shell, and a limiting cross rod is arranged in the front output hole;
the rear output hole is arranged at the position, corresponding to the front output hole, of the rear end surface of the handheld shell;
the front input hole is arranged below the front end surface of the handheld shell, an annular protective cylinder is formed at the front end of the front input hole, and a gear shifting screw rod inserted into the front input hole is screwed on the lower end surface of the handheld shell;
the rear input hole is arranged at the position, corresponding to the front input hole, of the rear end surface of the handheld shell;
the active component is rotatably arranged between the front input hole and the rear input hole, and comprises:
the driving roller is in a conical cylinder shape with a narrow front part and a wide back part, sliding grooves are uniformly distributed in the driving roller in the circumferential direction, the outer edge of each sliding groove is parallel to the conical outer wall of the driving roller, and outer openings with the width smaller than that of each sliding groove are formed in the outer edge of each sliding groove;
the front rotating shaft is arranged in the middle of the front end face of the driving roller and can be rotatably inserted into the front input hole and the annular protective cylinder, a sliding hole communicated with the sliding groove is formed in the front rotating shaft, a tightening opening is formed in the front end of the sliding hole, and a first concave ring and a second concave ring are sequentially arranged on the outer wall of the front rotating shaft from back to front;
the adjusting core shaft comprises an adjusting screw rod which is rotatably inserted into the sliding hole, a limiting baffle disc which is arranged at the front end of the adjusting screw rod and clamped behind the tightening opening, and an adjusting torsion bar which is arranged at the front end of the limiting baffle disc and penetrates through the tightening opening;
the reducing wheel disc comprises driven nuts which are inserted into the sliding holes in a sliding mode and meshed with the adjusting screw rods in a sliding mode, adjusting sliding rods which correspond to the sliding grooves one by one are uniformly distributed on the outer walls of the driven nuts in the circumferential direction, adjusting sliding sleeves are sleeved on the adjusting sliding rods, contact probes which penetrate through corresponding outer openings are arranged at the ends of the adjusting sliding sleeves, compression springs are wound on the adjusting sliding rods, and the adjusting sliding sleeves are driven to abut against the outer edges of the sliding grooves by the compression springs;
the first driving gear is arranged in the middle of the rear end face of the driving roller, and a first driving gear tooth is arranged on the lower edge of the first driving gear;
the second driving gear is arranged in the middle of the rear end face of the first driving gear, the diameter of the second driving gear is smaller than that of the first driving gear, and second driving gear teeth are arranged on the lower edge of the second driving gear;
the rear rotating shaft is arranged on the rear end face of the second driving gear and inserted into the rear input hole;
the manual rotating disc is arranged at the rear end of the rear rotating shaft and is positioned behind the handheld shell;
the return spring is wound on the rear rotating shaft, the front end of the return spring is abutted with the second driving gear, and the rear end of the return spring is abutted with the handheld shell;
the transmission element is rotatable establish handheld casing rear end face for the transmission is connected driving element, driven element, the transmission element includes:
the periphery of the first driven gear is provided with first driven gear teeth matched with the first driving gear teeth;
the second driven gear is arranged at the rear end of the first driven gear, the diameter of the second driven gear is larger than that of the first driven gear, and second driven gear teeth matched with the second driving gear teeth are arranged behind the periphery of the second driven gear;
the transmission gear is arranged at the rear end of the second driven gear, and the rear end of the transmission gear is rotatably inserted into the rear end face of the handheld shell through a rotating shaft;
a driven element for setting and adjusting the position of the ultrasonic probe, comprising:
the front end of the output rotating shaft is inserted into the front output hole, and the rear end of the output rotating shaft is inserted into the rear output hole;
the driven roller is in a conical cylinder shape with a wide front part and a narrow back part, is arranged at the front end of the output rotating shaft and is in transmission connection with the contact probe;
the output gear is arranged at the rear end of the output rotating shaft and is in transmission connection with the transmission gear;
the output screw hole is arranged at the front end of the output rotating shaft;
the output screw is in threaded connection with the output screw hole and is provided with a limiting hole matched with the limiting cross rod;
under the condition that the gear shifting screw is in inserted fit with the first concave ring, the first driving gear teeth and the first driven gear teeth are in threaded fit; under the condition that the gear shifting screw is in inserted fit with the second concave ring, the second driving gear teeth and the second driven gear teeth are in threaded fit;
the ultrasonic probe adjusting method comprises the following steps:
the gear shifting screw is unscrewed, and the reset spring acts on the second driving gear to drive the driving roller to advance until the contact probe is in transmission connection with the driven roller;
the manual turntable is stirred by a hand to drive the driving roller and the contact probe to rotate and drive the driven roller to perform reverse transmission, and the output screw hole drives the output screw rod to step along the front-back direction;
the adjusting torsion bar is twisted to drive the adjusting screw rod to rotate, the driven nut is driven to move axially along the adjusting screw rod, and the adjusting slide rod, the adjusting sliding sleeve and the contact probe are driven to move;
the adjusting sliding sleeve is abutted against the outer edge of the sliding groove under the action of the compression spring, and the outer edge of the sliding groove is parallel to the conical outer wall of the driving roller, so that when the adjusting sliding sleeve moves from front to back, the adjusting sliding sleeve gradually stretches outwards to drive the contact probe to gradually stretch outwards, the diameter of a track circle where the outer end of the contact probe is located is increased, the rotation speed of the driven roller and the output rotating shaft is increased, and the moving speed of the output screw is increased;
and step 3, forward transmission connection:
step 3.1, forward high-speed transmission connection:
extruding the adjusting torsion bar backwards to drive the driving roller to retreat so that the gear shifting screw is aligned with the first concave ring, the first driving gear and the first driven gear are meshed at the moment, and screwing the gear shifting screw to insert the gear shifting screw into the first concave ring;
the manual turntable is shifted by a hand to drive the first driving gear to rotate, and drive the first driven gear and the transmission gear to rotate, so as to drive the output gear and the output rotating shaft to rotate, and drive the output screw rod to axially move along the output screw hole;
and 3.2, forward low-speed transmission connection:
the adjusting torsion bar is extruded backwards to drive the driving roller to retreat, so that the gear shifting screw is aligned with a second concave ring, at the moment, a second driving gear and a second driven gear are meshed, and the gear shifting screw is screwed to be inserted into the second concave ring;
the manual turntable is shifted by a hand to drive the second driving gear to rotate, and drive the second driven gear and the transmission gear to rotate, so as to drive the output gear and the output rotating shaft to rotate and drive the output screw rod to axially move along the output screw hole;
because the diameter of the second driving gear is smaller than that of the first driving gear, and the diameter of the second driven gear is larger than that of the first driven gear, the rotating speed of the output rotating shaft in the step 3.2 is lower than that of the output rotating shaft in the step 3.1, and the moving speed of the output screw in the step 3.2 is lower than that of the output screw in the step 3.1.
The invention has the beneficial effects that:
the invention relates to an ultrasonic probe adjusting method, which is characterized in that an ultrasonic probe handheld support is used for adjusting, the handheld shell is held by a hand, and then a manual drive plate is pushed by a thumb to adjust the position of an ultrasonic probe.
Secondly, the ultrasonic probe adjusting method adjusts the rotation direction of the driven element by adjusting the position of the adjusting torsion bar under the condition of keeping the thumb toggling direction consistent, and adjusts the advancing or retreating of the ultrasonic probe:
when the driven element is in transmission connection with the contact probe of the driving roller through the driven roller, the driven element rotates and the direction of the driven element is opposite to the direction of the manual driving plate, and the transmission element is idle under the action of the driven element;
when the first driving gear is meshed with the first driven gear or the second driving gear is meshed with the second driven gear, the driving element drives the transmission element to rotate, the transmission element drives the driven element to rotate, and the rotation direction of the driven element is the same as that of the manual driving plate;
thirdly, the ultrasonic probe adjusting method of the invention can adjust the advancing speed of the ultrasonic probe:
1. under the state that the driven element and the driving element rotate in opposite directions, the position of the contact probe is adjusted through rotating the adjusting torsion bar, and then the rotating speed of the driven element is adjusted, and the advancing speed of the ultrasonic probe is adjusted;
2. under the state that the driven element and the driving element rotate reversely, the rotating speed of the driven element is adjusted by switching the meshing of the first driving gear and the first driven gear or the meshing of the second driving gear and the second driven gear, and the advancing speed of the ultrasonic probe is adjusted.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a cross-sectional view of one embodiment of the hand-held mount.
FIG. 2 is a cross-sectional view of one embodiment of the handheld stand.
FIG. 3 is a cross-sectional view of one embodiment of the hand-held mount.
Figure 4 is a cross-sectional view of one embodiment of the active element.
Figure 5 is a front view of one embodiment of the active element.
Fig. 6 is an enlarged schematic view of a portion a of fig. 1.
In the figure:
1. the device comprises a handheld shell, 11 parts of a front output hole, 11a parts of a limiting cross rod, 12 parts of a rear output hole, 13 parts of a front input hole, 13a parts of an annular protective cylinder, 13b parts of a gear shifting screw rod and 14 parts of a rear input hole;
2. the device comprises a driving element, 21, a driving roller, 21a, a sliding shaft, 21b, an outer opening hole, 22, a front rotating shaft, 22a, a sliding hole, 22b, a tightening opening, 22c, a first concave ring, 22d, a second concave ring, 23, an adjusting mandrel, 23a, an adjusting screw rod, 23b, a limit stop disc, 23c, an adjusting torsion bar, 24, a reducing wheel disc, 24a, a driven nut, 24b, an adjusting sliding rod, 24c, an adjusting sliding sleeve, 24d, a contact probe, 24e, a compression spring, 25, a first driving gear, 25a first driving gear, 26, a second driving gear, 26a second driving gear, 27, a rear rotating shaft, 28, a manual driving disc and 29, and a return spring;
3. a transmission element, 31, a first driven gear, 31a, first driven gear teeth, 32, a second driven gear, 32a, second driven gear teeth, 33, a transmission gear;
4. the device comprises a driven element, 41, an output rotating shaft, 42, a driven roller, 43, an output gear, 44, an output screw hole, 45, an output screw rod and 45a limiting hole;
5. an ultrasound probe.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
An ultrasonic probe adjusting method is used for adjusting by using an ultrasonic probe handheld support, wherein the ultrasonic probe handheld support comprises a handheld shell 1, a driving element 2, a transmission element 3, a driven element 4 and an ultrasonic probe 5;
the front output hole 11 is arranged above the front end face of the handheld shell 1, and a limiting cross rod 11a is arranged in the front output hole;
the rear output hole 12 is arranged at the position, corresponding to the front output hole 11, of the rear end surface of the handheld shell 1;
the front input hole 13 is arranged below the front end face of the handheld shell 1, an annular protective cylinder 13a is formed at the front end of the front input hole 13, and a gear shifting screw 13b inserted into the front input hole 13 is screwed on the lower end face of the handheld shell 1;
the rear input hole 14 is arranged at the position, corresponding to the front input hole 13, of the rear end surface of the handheld shell 1;
the active component 2 is rotatably disposed between the front input hole 13 and the rear input hole 14, and includes:
the driving roller 21 is in a conical cylinder shape with a narrow front part and a wide rear part, sliding grooves 21a are uniformly distributed in the inner circumference of the driving roller 21, the outer edge of each sliding groove 21a is parallel to the conical outer wall of the driving roller 21, and an outer opening 21b with a width smaller than that of each sliding groove 21a is formed in the outer edge of each sliding groove 21 a;
the front rotating shaft 22 is arranged in the middle of the front end face of the driving roller 21, the front rotating shaft 22 is rotatably inserted into the front input hole 13 and the annular protective cylinder 13a, a sliding hole 22a communicated with the sliding groove 21a is formed in the front rotating shaft 22, a tightening opening 22b is formed in the front end of the sliding hole 22a, and a first concave ring 22c and a second concave ring 22d are sequentially arranged on the outer wall of the front rotating shaft 22 from back to front;
the adjusting mandrel 23 comprises an adjusting screw 23a which is rotatably inserted into the sliding hole 22a, a limiting baffle disc 23b which is arranged at the front end of the adjusting screw 23a and clamped behind the tightening opening 22b, and an adjusting torsion bar 23c which is arranged at the front end of the limiting baffle disc 23b and penetrates through the tightening opening 22 b;
the reducing wheel disc 24 comprises driven nuts 24a which are slidably inserted into the sliding holes 22a and meshed with the adjusting screws 23a, adjusting slide rods 24b which are in one-to-one correspondence with the sliding grooves 21a are uniformly distributed on the outer wall of the driven nuts 24a in the circumferential direction, adjusting slide sleeves 24c are sleeved on the adjusting slide rods 24b, contact probes 24d which penetrate through corresponding outer openings 21b are arranged at the ends of the adjusting slide sleeves 24c, compression springs 24e are further wound on the adjusting slide rods 24b, and the adjusting slide sleeves 24c are driven to abut against the outer edges of the sliding grooves 21a by the compression springs 24 e;
the first driving gear 25 is arranged in the middle of the rear end face of the driving roller 21, and a first driving gear 25a is arranged on the lower edge of the first driving gear 25;
the second driving gear 26 is arranged in the middle of the rear end face of the first driving gear 25, the diameter of the second driving gear 26 is smaller than that of the first driving gear 25, and a second driving gear tooth 26a is arranged on the lower edge of the second driving gear 26;
a rear rotary shaft 27, which is arranged on the rear end surface of the second driving gear 26 and inserted into the rear input hole 14;
a manual rotating disc 28 arranged at the rear end of the rear rotating shaft 27 and positioned at the rear part of the handheld shell 1;
a return spring 29 wound around the rear rotary shaft 27, having a front end abutting against the second drive gear 26 and a rear end abutting against the hand-held housing 1;
the transmission element 3 is rotatably arranged on the rear end face of the handheld shell 1 and is used for being in transmission connection with the driving element 2 and the driven element 4, and the transmission element 3 comprises:
a first driven gear 31 having a first driven gear tooth 31a fitted to the first driving gear tooth 25a at an outer circumference thereof;
the second driven gear 32 is arranged at the rear end of the first driven gear 31, the diameter of the second driven gear 32 is larger than that of the first driven gear 31, and second driven gear teeth 32a matched with the second driving gear teeth 25a are arranged behind the periphery of the second driven gear 32;
the transmission gear 33 is arranged at the rear end of the second driven gear 32, and the rear end of the transmission gear 33 is rotatably inserted into the rear end face of the handheld shell 1 through a rotating shaft;
a driven member 4 for setting the ultrasonic probe 5 and adjusting the position of the ultrasonic probe 5, comprising:
an output rotating shaft 41, the front end of which is inserted in the front output hole 11 and the rear end of which is inserted in the rear output hole 12;
the driven roller 42 is in a conical cylinder shape with a wide front part and a narrow back part, is arranged at the front end of the output rotating shaft 41 and is in transmission connection with the contact probe 24 d;
the output gear 43 is arranged at the rear end of the output rotating shaft 41 and is in transmission connection with the transmission gear 33;
an output screw hole 44 provided at the front end of the output rotary shaft 41;
the output screw 45 is in threaded connection with the output screw hole 44, and the output screw 45 is provided with a limiting hole 45a matched with the limiting cross rod 11 a;
under the condition that the gear shifting screw 13b is in inserted fit with the first concave ring 22c, the first driving gear 25a and the first driven gear 31a are in threaded fit; under the condition that the gear shifting screw 13b is in inserted fit with the second concave ring 22c, the second driving gear teeth 26a and the second driven gear teeth 32a are in threaded fit;
the ultrasonic probe adjusting method comprises the following steps:
the gear shifting screw 13b is unscrewed, and the return spring 29 acts on the second driving gear 26 to drive the driving roller 21 to advance until the contact probe 24d is in transmission connection with the driven roller 42;
the manual turntable 28 is shifted by hand to drive the driving roller 21 and the contact probe 24d to rotate, and drive the driven roller 42 to perform reverse transmission, and the output screw hole 44 drives the output screw rod 45 to step along the front-back direction;
the adjusting torsion bar 23c is twisted to drive the adjusting screw 23a to rotate, the driven nut 24a is driven to move axially along the adjusting screw 23a, and the adjusting slide bar 24b, the adjusting sliding sleeve 24c and the contact probe 24d are driven to move;
the adjusting sliding sleeve 24c is abutted against the outer edge of the sliding groove 21a under the action of the compression spring 24e, and because the outer edge of the sliding groove 21a is parallel to the tapered outer wall of the driving roller 21, when the adjusting sliding sleeve 24c moves from front to back, the adjusting sliding sleeve 24c gradually stretches outwards to drive the contact probe 24d to gradually stretch outwards, the diameter of a track circle where the outer end of the contact probe 24d is located is increased, the rotation speed of the driven roller 42 and the output rotating shaft 41 is increased, and the moving speed of the output screw 45 is increased;
and step 3, forward transmission connection:
step 3.1, forward high-speed transmission connection:
the adjusting torsion bar 23c is squeezed backwards to drive the driving roller 21 to retreat, so that the gear shifting screw 13b is aligned with the first concave ring 22c, at this time, the first driving gear 25a and the first driven gear 31a are meshed, and the gear shifting screw 13b is screwed to be inserted into the first concave ring 22 c;
the manual rotating disc 28 is shifted by hand to drive the first driving gear 25 to rotate, and drive the first driven gear 31 and the transmission gear 33 to rotate, so as to drive the output gear 43 and the output rotating shaft 41 to rotate, and drive the output screw 45 to axially move along the output screw hole 44;
and 3.2, forward low-speed transmission connection:
the adjusting torsion bar 23c is squeezed backwards to drive the driving roller 21 to retreat, so that the gear shifting screw 13b is aligned with the second concave ring 22d, at this time, the second driving gear 26a and the second driven gear 32a are meshed, and the gear shifting screw 13b is screwed to be inserted into the second concave ring 22 d;
the manual rotating disc 28 is shifted by hand to drive the second driving gear 26 to rotate, and drive the second driven gear 32 and the transmission gear 33 to rotate, so as to drive the output gear 43 and the output rotating shaft 41 to rotate, and drive the output screw 45 to axially move along the output screw hole 44;
since the diameter of the second driving gear 26 is smaller than that of the first driving gear 25, and the diameter of the second driven gear 32 is larger than that of the first driven gear 31, the rotating speed of the output rotating shaft 41 in step 3.2 is lower than that of the output rotating shaft 41 in step 3.1, and the moving speed of the output screw 45 in step 3.2 is lower than that of the output screw 45 in step 3.1.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (1)
1. An ultrasonic probe adjustment method is characterized in that: the ultrasonic probe hand-held support is used for adjustment, and comprises a hand-held shell (1), a driving element (2), a transmission element (3), a driven element (4) and an ultrasonic probe (5);
handheld casing (1) is the handheld casing of hollow, handheld casing (1) includes:
the front output hole (11) is arranged above the front end surface of the handheld shell (1), and a limiting cross rod (11 a) is arranged in the front output hole;
the rear output hole (12) is arranged at the position, corresponding to the front output hole (11), of the rear end surface of the handheld shell (1);
the front input hole (13) is arranged below the front end face of the handheld shell (1), an annular protective cylinder (13 a) is formed at the front end of the front input hole (13), and a gear shifting screw rod (13 b) inserted into the front input hole (13) is screwed on the lower end face of the handheld shell (1);
the rear input hole (14) is arranged at the position, corresponding to the front input hole (13), of the rear end surface of the handheld shell (1);
the active component (2) is rotatably arranged between the front input hole (13) and the rear input hole (14), and comprises:
the driving roller (21) is in a conical cylinder shape with a narrow front part and a wide rear part, sliding grooves (21 a) are uniformly distributed in the inner circumference of the driving roller (21), the outer edges of the sliding grooves (21 a) are parallel to the conical outer wall of the driving roller (21), and outer openings (21 b) with the width smaller than that of the sliding grooves (21 a) are formed in the outer edges of the sliding grooves (21 a);
the front rotating shaft (22) is arranged in the middle of the front end face of the driving roller (21), the front rotating shaft (22) is rotatably inserted into the front input hole (13) and the annular protective cylinder (13 a), a sliding hole (22 a) communicated with the sliding groove (21 a) is formed in the front rotating shaft (22), a tightening opening (22 b) is formed in the front end of the sliding hole (22 a), and a first concave ring (22 c) and a second concave ring (22 d) are sequentially arranged on the outer wall of the front rotating shaft (22) from back to front;
the adjusting mandrel (23) comprises an adjusting screw rod (23 a) which is rotatably inserted into the sliding hole (22 a), a limiting baffle disc (23 b) which is arranged at the front end of the adjusting screw rod (23 a) and clamped behind the tightening opening (22 b), and an adjusting torsion bar (23 c) which is arranged at the front end of the limiting baffle disc (23 b) and penetrates through the tightening opening (22 b);
the variable diameter wheel disc (24) comprises a driven nut (24 a) which is slidably inserted into the sliding hole (22 a) and meshed with the adjusting screw rod (23 a), adjusting sliding rods (24 b) which are in one-to-one correspondence with the sliding groove (21 a) are uniformly distributed on the outer wall of the driven nut (24 a) in the circumferential direction, an adjusting sliding sleeve (24 c) is sleeved on the adjusting sliding rod (24 b), a contact probe (24 d) which penetrates through the corresponding outer opening hole (21 b) is arranged at the stop end of the adjusting sliding sleeve (24 c), a compression spring (24 e) is wound on the adjusting sliding rod (24 b), and the compression spring (24 e) drives the adjusting sliding sleeve (24 c) to abut against the outer edge of the sliding groove (21 a);
the first driving gear (25) is arranged in the middle of the rear end face of the driving roller (21), and a first driving gear tooth (25 a) is arranged on the lower edge of the first driving gear (25);
the second driving gear (26) is arranged in the middle of the rear end face of the first driving gear (25), the diameter of the second driving gear is smaller than that of the first driving gear (25), and second driving gear teeth (26 a) are arranged on the lower edge of the second driving gear (26);
the rear rotating shaft (27) is arranged on the rear end face of the second driving gear (26) and is inserted into the rear input hole (14);
the manual rotating disc (28) is arranged at the rear end of the rear rotating shaft (27) and is positioned behind the handheld shell (1);
a return spring (29) wound on the rear rotating shaft (27), the front end of the return spring is abutted with the second driving gear (26) and the rear end of the return spring is abutted with the handheld shell (1);
the transmission element (3) is rotatably arranged on the rear end face of the handheld shell (1) and is used for being in transmission connection with the driving element (2) and the driven element (4), and the transmission element (3) comprises:
a first driven gear (31) having first driven gear teeth (31 a) formed on an outer periphery thereof to be engaged with the first driving gear teeth (25 a);
the second driven gear (32) is arranged at the rear end of the first driven gear (31), the diameter of the second driven gear (32) is larger than that of the first driven gear (31), and second driven gear teeth (32 a) matched with the second driving gear teeth (25 a) are arranged behind the periphery of the second driven gear (32);
the transmission gear (33) is arranged at the rear end of the second driven gear (32), and the rear end of the transmission gear (33) is rotatably inserted into the rear end face of the handheld shell (1) through a rotating shaft;
a driven element (4) for setting the ultrasound probe (5) and adjusting the position of the ultrasound probe (5), comprising:
the front end of the output rotating shaft (41) is inserted into the front output hole (11), and the rear end of the output rotating shaft is inserted into the rear output hole (12);
the driven roller (42) is in a conical cylinder shape with a wide front part and a narrow back part, is arranged at the front end of the output rotating shaft (41), and is in transmission connection with the contact probe (24 d);
the output gear (43) is arranged at the rear end of the output rotating shaft (41) and is in transmission connection with the transmission gear (33);
an output screw hole (44) arranged at the front end of the output rotating shaft (41);
the output screw (45) is in threaded connection with the output screw hole (44), and the output screw (45) is provided with a limiting hole (45 a) matched with the limiting cross rod (11 a);
under the condition that the gear shifting screw rod (13 b) is in inserted fit with the first concave ring (22 c), the first driving gear teeth (25 a) and the first driven gear teeth (31 a) are in threaded fit; under the condition that the gear shifting screw rod (13 b) is in inserted fit with the second concave ring (22 c), the second driving gear teeth (26 a) and the second driven gear teeth (32 a) are in threaded fit;
the ultrasonic probe adjusting method comprises the following steps:
step 1, reverse transmission connection:
the gear shifting screw rod (13 b) is unscrewed, and the return spring (29) acts on the second driving gear (26) to drive the driving roller (21) to advance until the contact probe (24 d) is in transmission connection with the driven roller (42);
the manual turntable (28) is shifted by hand to drive the driving roller (21) and the contact probe (24 d) to rotate and drive the driven roller (42) to perform reverse transmission, and the output screw hole (44) drives the output screw rod (45) to step along the front-back direction;
step 2, reverse transmission speed adjustment:
the adjusting torsion bar (23 c) is twisted to drive the adjusting screw rod (23 a) to rotate, the driven nut (24 a) is driven to move axially along the adjusting screw rod (23 a), and the adjusting slide rod (24 b), the adjusting sliding sleeve (24 c) and the contact probe (24 d) are driven to move;
the adjusting sliding sleeve (24 c) is abutted against the outer edge of the sliding groove (21 a) under the action of the compression spring (24 e), and because the outer edge of the sliding groove (21 a) is parallel to the conical outer wall of the driving roller (21), when the adjusting sliding sleeve (24 c) moves from front to back, the adjusting sliding sleeve (24 c) gradually stretches outwards to drive the contact probe (24 d) to gradually stretch outwards, the diameter of a track circle where the outer end of the contact probe (24 d) is located is increased, the rotation speed of the driven roller (42) and the output rotating shaft (41) is increased, and the movement speed of the output screw (45) is increased;
and step 3, forward transmission connection:
step 3.1, forward high-speed transmission connection:
backwards extruding the adjusting torsion bar (23 c) to drive the driving roller (21) to retreat, so that the gear shifting screw (13 b) is aligned with a first concave ring (22 c), at the moment, the first driving gear teeth (25 a) and the first driven gear teeth (31 a) are meshed, and screwing the gear shifting screw (13 b) to insert into the first concave ring (22 c);
the manual turntable (28) is shifted by hand to drive the first driving gear (25) to rotate, and drive the first driven gear (31) and the transmission gear (33) to rotate, so as to drive the output gear (43) and the output rotating shaft (41) to rotate, and drive the output screw (45) to axially move along the output screw hole (44);
and 3.2, forward low-speed transmission connection:
backwards extruding the adjusting torsion bar (23 c) to drive the driving roller (21) to retreat, so that the gear shifting screw (13 b) is aligned with a second concave ring (22 d), at the moment, the second driving gear teeth (26 a) and the second driven gear teeth (32 a) are meshed, and screwing the gear shifting screw (13 b) to insert into the second concave ring (22 d);
the manual turntable (28) is shifted by hand to drive the second driving gear (26) to rotate, and drive the second driven gear (32) and the transmission gear (33) to rotate, so as to drive the output gear (43) and the output rotating shaft (41) to rotate, and drive the output screw (45) to axially move along the output screw hole (44);
because the diameter of the second driving gear (26) is smaller than that of the first driving gear (25), and the diameter of the second driven gear (32) is larger than that of the first driven gear (31), the rotating speed of the output rotating shaft (41) in the step 3.2 is lower than that of the output rotating shaft (41) in the step 3.1, and the moving speed of the output screw (45) in the step 3.2 is lower than that of the output screw (45) in the step 3.1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711246110.6A CN107802292B (en) | 2017-12-01 | 2017-12-01 | Ultrasonic probe adjusting method |
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| CN201711246110.6A CN107802292B (en) | 2017-12-01 | 2017-12-01 | Ultrasonic probe adjusting method |
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| CN107802292A CN107802292A (en) | 2018-03-16 |
| CN107802292B true CN107802292B (en) | 2020-08-25 |
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| CN114216966B (en) * | 2021-12-15 | 2023-05-26 | 江苏省特种设备安全监督检验研究院 | Ultrasonic detection auxiliary device suitable for crane |
| CN114216967B (en) * | 2021-12-16 | 2023-08-22 | 江苏省特种设备安全监督检验研究院 | Crane nondestructive inspection pretreatment method |
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| NL9001564A (en) * | 1990-07-09 | 1992-02-03 | Optische Ind De Oude Delft Nv | BODY CONTAINABLE TUBE EQUIPPED WITH A MANIPULATOR. |
| JPH11123193A (en) * | 1997-10-22 | 1999-05-11 | Olympus Optical Co Ltd | Rotary driving device for ultrasonic endoscope |
| CN2594545Y (en) * | 2002-12-30 | 2003-12-24 | 欧北根 | Stepless gear box with belt transmission |
| CN2862304Y (en) * | 2005-08-19 | 2007-01-24 | 杭州市天马定时器厂 | Time velocity adjustable timer |
| CN101849839B (en) * | 2009-03-30 | 2014-01-01 | 深圳迈瑞生物医疗电子股份有限公司 | Drive unit for ultrasonic probe and drive method thereof |
| CN101700187A (en) * | 2009-09-09 | 2010-05-05 | 北京汇影互联科技有限公司 | Device and method for carrying out ultrasound scanning |
| CN201510300U (en) * | 2009-09-29 | 2010-06-23 | 天津迈达医学科技有限公司 | Novel linear scanning ultrasonic probe |
| CN102988081A (en) * | 2012-12-13 | 2013-03-27 | 无锡触典科技有限公司 | Ultrasonic scanning probe |
| CN202992032U (en) * | 2012-12-25 | 2013-06-12 | 沅江博富新材料科技有限公司 | Two-speed gearbox of hemp plastic mixer |
| CN103644263A (en) * | 2013-11-25 | 2014-03-19 | 重庆市璧山爱华有限责任公司 | Stepless gearbox |
| CN206389699U (en) * | 2017-01-18 | 2017-08-11 | 广宁县木格农业机械有限公司 | A kind of transmission case of cultivator structure |
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