Full-automatic vibration signal acquisition device

Abstract

The invention belongs to the technical field of vibration signal acquisition, and particularly relates to a full-automatic vibration signal acquisition device which comprises a carrying table, four groups of rollers are arranged at the bottom of the carrying table, a vibration signal acquisition analyzer is arranged on the carrying table, a drop hammer mechanism is arranged on one side of the vibration signal acquisition analyzer, and the drop hammer mechanism comprises a supporting barrel. The supporting barrel is fixedly installed on the carrying table, a pressure-bearing seat is inserted into the lower end of the supporting barrel, an L-shaped piece is fixedly installed on the pressure-bearing seat, the L-shaped piece is in threaded connection with a screw rod, a loading hammer is arranged above the pressure-bearing seat, a lifting plate and two sets of clamping hooks are arranged above the loading hammer, the two sets of clamping hooks are symmetrically hinged to the lifting plate, a U-shaped elastic strip is arranged on one side of each clamping hook, and the lower ends of the clamping hooks are in clamped connection with the upper end of the loading hammer. The device is simple in structure and high in automation rate, the load hammer can be automatically lifted and placed through cooperation of the clamping hook, the lifting plate, the U-shaped elastic strip and the electric push rod, a worker can detect the roadbed compactness more conveniently in a labor-saving mode, and the roadbed compactness detection efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of vibration signal acquisition, and more specifically, it is a fully automatic vibration signal acquisition device. Background Art

[0002] The detection of subgrade compaction degree is not only a key step to ensure the quality of road engineering, but also an important measure to ensure traffic safety and extend the service life of roads. Therefore, during the road construction process, the compaction degree must be detected strictly in accordance with the specifications to ensure that each layer of filling material reaches the best compaction state. The existing compaction degree detection methods usually include the core cutter method, sand replacement method, water replacement method, etc.

[0003] The patent with publication number CN117368020A discloses a subgrade compaction degree detection device, including a free-falling ball device. The free-falling ball device includes a base, with columns arranged at the four corners of the base, and a steel ball support frame for placing steel balls is arranged above the base. One end of the steel ball support frame is hinged to a hinge support, and the other end of the steel ball support frame is placed inside a transverse support plate. In this solution, by placing the steel ball on the steel ball support frame, opening the steel ball support frame, allowing the steel ball placed on the steel ball support frame to freely fall from the arc cup to impact the top surface of the subgrade, and leaving an impact mark of a hemispherical pit on the top surface of the subgrade. By measuring the size of the pit and substituting the size into the relational formula, the subgrade compaction degree can be calculated. The operation is simple and fast, and it is applicable to indoor and outdoor working environments.

[0004] In the above solution, after the falling steel ball hits the top surface of the subgrade to form a pit, the staff needs to first move the steel ball away and then place the steel ball back on the steel ball support frame before measuring the pit. If it is necessary to detect the compaction degree of multiple locations on the subgrade, the staff needs to move the steel ball away from the pit and place the steel ball on the steel ball support frame multiple times. The staff is laborious and slow during the process of moving the steel ball, wasting a lot of time in moving the steel ball and reducing the efficiency of detecting the subgrade compaction degree. Therefore, the present invention provides a fully automatic vibration signal acquisition device. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A fully automatic vibration signal acquisition device described in the present invention includes a carrier table. Four groups of rollers are provided at the bottom of the carrier table. A vibration signal acquisition and analyzer is provided on the carrier table. A drop hammer mechanism is provided on one side of the vibration signal acquisition and analyzer. The drop hammer mechanism includes a support barrel, the support barrel is fixedly installed on the carrier table, a pressure-bearing seat is inserted at the lower end of the support barrel, an L-shaped member fixedly installed on the pressure-bearing seat, the L-shaped member is screwed with a screw rod, a load hammer is provided above the pressure-bearing seat, a lifting plate is provided above the load hammer, two groups of hooks symmetrically hinged on the lifting plate, a U-shaped elastic strip is provided on one side of the hook, the lower end of the hook is clamped with the upper end of the load hammer, an electric push rod fixedly installed at the upper end of the support barrel, the lower end of the electric push rod is fixedly connected to the lifting plate, an inverted trapezoidal groove for unlocking the hook is opened at the upper end of the support barrel, two rectangular grooves are opened on the support barrel, a sliding rod is fixedly installed in the rectangular groove, two through holes are opened on the pressure-bearing seat, the load hammer, and the lifting plate, and the through holes are slidably connected to the sliding rod. A seismograph is installed in the pressure-bearing seat, and the seismograph is electrically connected to the vibration signal acquisition and analyzer;

[0007] The automation rate of the device is higher. Secondly, through the cooperation of the hook, the lifting plate, the U-shaped elastic strip, and the electric push rod, the lifting and lowering of the load hammer can be automatically realized, making it more convenient and labor-saving for the staff to detect the compaction degree of the roadbed, and improving the efficiency of detecting the compaction degree of the roadbed.

[0008] Preferably, a rotary pipe is rotatably installed on the pressure-bearing seat. A sector gear plate is fixedly installed at the lower end of the rotary pipe. A gear meshing with the sector gear plate, the sector gear plate is rotatably installed in the pressure-bearing seat. The upper end of the connector is connected to the gear. The lower end of the connector is inserted with a rectangular shaft. The lower end of the rectangular shaft passes through the movable plate and is fixedly connected to the scraper. Two guide grooves are provided in the pressure-bearing seat. The guide grooves are slidably connected to the guide posts. The lower ends of the guide posts are fixedly connected to the movable plate. A receiving groove is opened at the lower end of the pressure-bearing seat. The movable plate and the scraper are both located in the receiving groove. The rotary pipe is inserted with a fixed rod. Two guiding grooves are opened on the rotary pipe. Two pin shafts are provided on the fixed rod. The two pin shafts are respectively located in the two guiding grooves. The guiding groove is composed of a straight groove and a spiral groove;

[0009] After the pressure-bearing seat is separated from the ground contact, the pin shaft enters from the straight groove into the spiral groove, and the pin shaft presses against the inner wall of the spiral groove, causing the rotary pipe and the sector gear plate to rotate together. The rotating sector gear plate drives the gear, the connector, the rectangular shaft, and the scraper to rotate together by a certain degree. The rotating scraper scrapes off the soil attached to the lower end face of the pressure-bearing seat, avoiding the accumulation of soil on the lower end face of the pressure-bearing seat and ensuring the accuracy of the detection.

[0010] Preferably, the connector includes a connecting shaft. The upper end of the connecting shaft is connected to a gear, the lower end of the connecting shaft is rotatably connected to a bushing, the bushing is inserted with a rectangular shaft, a ratchet is installed at the lower end of the connecting shaft, the ratchet is clamped with three pawls, the pawls are hinged inside the upper end of the bushing, three guide rods are inserted around the upper end of the bushing, springs sleeved on the guide rods, pulleys are rotatably installed at the ends of the guide rods, the pulleys are rotatably connected to the inner ring of a fixed ring, and three card slots are formed on the inner ring of the fixed ring, and the three card slots are respectively clamped with the three pulleys;

[0011] Due to the clamping of the pulley and the card slot, although the gear can drive the ratchet to rotate, the ratchet cannot drive the bushing to rotate through the pawl, so that the scraper cannot rotate, thereby reducing the wear caused by friction between the scraper and the lower end of the pressure-bearing seat, and improving the service life of the scraper and the pressure-bearing seat.

[0012] The beneficial effects of the present invention are as follows:

[0013] 1. The automation rate of the device is higher. Secondly, through the cooperation of the hook, the lifting plate, the U-shaped elastic strip and the electric push rod, the load hammer can be automatically lifted and lowered, making it more convenient and labor-saving for the staff to detect the compaction degree of the roadbed, and improving the efficiency of detecting the compaction degree of the roadbed.

[0014] 2. Rotate the screw rod so that the lower end of the screw rod abuts against the upper end surface of the stage. As the screw rod continues to rotate, the screw rod drives the L-shaped part together with the pressure-bearing seat to move upward. As the pressure-bearing seat moves upward, under the action of gravity, the movable plate and the scraper both move downward, so that the scraper disengages from the storage groove, and at the same time, the lower end surface of the movable plate is flush with the lower end surface of the pressure-bearing seat. During this process, the fixed rod drives the two pin shafts to slide along the two straight grooves respectively. When the pressure-bearing seat is separated from the ground contact, the pin shafts enter the spiral grooves from the straight grooves, and the pin shafts squeeze the inner wall of the spiral grooves, causing the rotary pipe together with the sector gear plate to rotate. The rotating sector gear plate drives the gear together with the connector, the rectangular shaft and the scraper to rotate by a certain degree, and the rotating scraper scrapes off the soil adhering to the lower end surface of the pressure-bearing seat, avoiding the accumulation of soil on the lower end surface of the pressure-bearing seat and ensuring the accuracy of the detection.

[0015] 3. During the process of the gear driving the connector to rotate, the gear first drives the connecting shaft, the connecting shaft drives the ratchet to rotate, the ratchet drives the bushing to rotate through the three pawls, and the bushing drives the rectangular shaft to rotate, so as to realize scraping off the soil on the lower end surface of the pressure-bearing seat as described above. During this process, the rotating bushing drives the three guide rods to rotate, and the guide rods drive the pulleys to disengage from the card slots, so that the guide rods compress the springs. Until the scraper rotates by a certain degree, under the action of the spring rebound force, the pulleys are clamped with the card slots again. Therefore, when the pressure-bearing seat is lowered again to detect the compaction degree of the roadbed, the gear together with the sector gear plate and the rotary pipe will surely rotate back. At this time, due to the clamping of the pulley and the card slot, although the gear can drive the ratchet to rotate, the ratchet cannot drive the bushing to rotate through the pawl, so that the scraper cannot rotate, thereby reducing the wear caused by friction between the scraper and the lower end of the pressure-bearing seat, and improving the service life of the scraper and the pressure-bearing seat. Brief Description of the Drawings

[0016] The present invention will be further described below with reference to the drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the combination of the support barrel, load hammer, lifting plate, hook, and U-shaped elastic strip in the cross-section of the present invention.

[0020] Figure 4 It is a schematic diagram of the combination of the vibration signal acquisition and analyzer and the pressure-bearing seat of the present invention.

[0021] Figure 5 It is a schematic cross-sectional view of the combination of the support barrel and the pressure-bearing seat of the present invention.

[0022] Figure 6 It is a schematic diagram of the interior of the pressure-bearing seat of the present invention.

[0023] Figure 7 It is a schematic diagram of the combination of the rotary pipe, sector gear plate, gear, and fixed rod of the present invention.

[0024] Figure 8 It is a schematic diagram of the combination of the cut-open pressure-bearing seat, gear, connector, and rectangular shaft of the present invention.

[0025] Figure 9 It is a schematic diagram of the connector of the present invention.

[0026] In the figure: 1, carrier table; 2, roller; 3, vibration signal acquisition and analyzer; 301, seismometer; 4, drop hammer mechanism; 401, support barrel; 4011, rectangular groove; 4012, sliding rod; 4013, inverted trapezoidal groove; 4014, fixed rod; 41, pin shaft; 402, pressure-bearing seat; 403, L-shaped part; 404, screw; 405, load hammer; 56, through hole; 406, lifting plate; 407, electric push rod; 408, hook; 409, U-shaped elastic strip; 4021, rotary pipe; 21, guiding groove; 211, linear groove; 212, spiral groove; 4022, sector gear plate; 4023, gear; 4024, connector; 4025, rectangular shaft; 4026, movable plate; 4027, scraper; 4028, guiding groove; 4029, guide post; 4030, storage groove; 31, connecting shaft; 32, bushing; 33, ratchet; 34, pawl; 35, guide rod; 351, pulley; 36, spring; 37, fixing ring; 371, clamping groove. Detailed Embodiments

[0027] In order to make the technical means, creative features, achieved purposes and functions realized by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0028] Embodiment 1

[0029] As Figures 1 to 4 shown, a fully automatic vibration signal acquisition device described in an embodiment of the present invention includes a carrier table 1. Four groups of rollers 2 are provided at the bottom of the carrier table 1. A vibration signal acquisition and analyzer 3 is provided on the carrier table 1. A drop hammer mechanism 4 is provided on one side of the vibration signal acquisition and analyzer 3. The drop hammer mechanism 4 includes a support barrel 401. The support barrel 401 is fixedly installed on the carrier table 1. A pressure-bearing seat 402 is inserted at the lower end of the support barrel 401. An L-shaped member 403 fixedly installed on the pressure-bearing seat 402. The L-shaped member 403 is screwed with a screw rod 404. A load hammer 405 is provided above the pressure-bearing seat 402. A lifting plate 406 is provided above the load hammer 405. Two groups of hooks 408 symmetrically hinged on the lifting plate 406. A U-shaped elastic strip 409 is provided on one side of the hook 408. The lower end of the hook 408 is clamped to the upper end of the load hammer 405. An electric push rod 407 fixedly installed at the upper end of the support barrel 401. The lower end of the electric push rod 407 is fixedly connected to the lifting plate 406. An inverted trapezoidal groove 4013 for unlocking the hook 408 is opened at the upper end of the support barrel 401. Two rectangular grooves 4011 are opened on the support barrel 401. A sliding rod 4012 is fixedly installed in the rectangular groove 4011. Two groups of through holes 56 are opened on the pressure-bearing seat 402, the load hammer 405, and the lifting plate 406. The through holes 56 are slidably connected to the sliding rod 4012. A seismograph 301 is installed in the pressure-bearing seat 402. The seismograph 301 is electrically connected to the vibration signal acquisition and analyzer 3.

[0030] Specifically, the roller 2 has a braking function. In the initial state, the pressure-bearing seat 402 is completely located inside the support barrel 401, and the lower end face of the pressure-bearing seat 402 is flush with the lower port of the support barrel 401. The lower end of the screw 404 abuts against the upper end face of the carrier 1. When it is necessary to detect the compaction degree of the roadbed, the device is pushed to the position to be detected, and then the four groups of rollers 2 are braked. The screw 404 is rotated. As the screw 404 rotates, the L-shaped part 403 together with the pressure-bearing seat 402 moves downward until the lower end of the screw 404 is flush with the upper end of the L-shaped part 403. At this time, the pressure-bearing seat 402 lands on the ground. Then, the electric push rod 407 is started to pull the lifting plate 406 upward. The lifting plate 406 drives the load hammer 405 upward through two hooks 408 until the upper end of the hook 408 is squeezed by the inner wall of the inverted trapezoidal groove 4013, causing the two hooks 408 to rotate towards each other, and the hook 408 compresses the U-shaped elastic strip 409, thereby releasing the clamping connection between the hook 408 and the load hammer 405. The load hammer 405 will freely fall along the sliding rod 4012, causing the load hammer 405 to strike on the pressure-bearing seat 402, causing the pressure-bearing seat 402 to be embedded into the ground. At the same time, the ground feedback gives vibration to the pressure-bearing seat 402. The seismograph 301 acquires the vibration signal generated by the vibration system and transmits it to the vibration signal acquisition and analysis instrument 3 through an electric wire. The compaction degree of the roadbed is calculated by the vibration signal acquisition and analysis instrument 3. Compared with the prior art, the automation rate of the device is higher. Secondly, through the cooperation of the hook 408, the lifting plate 406, the U-shaped elastic strip 409, and the electric push rod 407, the lifting and lowering of the load hammer 405 can be automatically realized, making it more convenient and labor-saving for the staff to detect the compaction degree of the roadbed and improving the efficiency of detecting the compaction degree of the roadbed.

[0031] As Figures 5 to 7 shown, a rotary connecting pipe 4021 is rotatably installed on the pressure-bearing seat 402. A sector gear plate 4022 is fixedly installed at the lower end of the rotary connecting pipe 4021. A gear 4023 that meshes with the sector gear plate 4022. The sector gear plate 4022 is rotatably installed inside the pressure-bearing seat 402. The upper end of the connector 4024 is connected to the gear 4023. The lower end of the connector 4024 is inserted with a rectangular shaft 4025. The lower end of the rectangular shaft 4025 passes through the movable plate 4026 and is fixedly connected to the scraper 4027. Two guide grooves 4028 are provided inside the pressure-bearing seat 402. The guide grooves 4028 are slidably connected to guide posts 4029. The lower ends of the guide posts 4029 are fixedly connected to the movable plate 4026. A storage groove 4030 is opened at the lower end of the pressure-bearing seat 402. The movable plate 4026 and the scraper 4027 are both located inside the storage groove 4030. The rotary connecting pipe 4021 is inserted with a fixing rod 4014. Two guiding grooves 21 are provided on the rotary connecting pipe 4021. Two pin shafts 41 are provided on the fixing rod 4014. The two pin shafts 41 are respectively located inside the two guiding grooves 21. The guiding groove 21 is composed of a straight groove 211 and a spiral groove 212.

[0032] Specifically, after the subgrade compaction degree is detected as above, rotate the screw rod 404 so that the lower end of the screw rod 404 abuts against the upper end surface of the carrier 1. As the screw rod 404 continues to rotate, the screw rod 404 drives the L-shaped member 403 together with the pressure-bearing seat 402 to move upward. As the pressure-bearing seat 402 moves upward, under the action of gravity, both the movable plate 4026 and the scraping plate 4027 move downward, causing the scraping plate 4027 to disengage from the storage groove 4030. At the same time, the lower end surface of the movable plate 4026 is flush with the lower end surface of the pressure-bearing seat 402. During this process, the fixed rod 4014 drives the two groups of pin shafts 41 to slide along the two groups of linear grooves 211 respectively. When the pressure-bearing seat 402 is separated from the ground contact, the pin shaft 41 enters the spiral groove 212 from the linear groove 211, and the pin shaft 41 presses against the inner wall of the spiral groove 212, causing the rotary pipe 4021 together with the sector gear plate 4022 to rotate. The rotating sector gear plate 4022 drives the gear 4023 together with the connector 4024, the rectangular shaft 4025, and the scraping plate 4027 to rotate 180 degrees. The rotating scraping plate 4027 scrapes off the soil adhering to the lower end surface of the pressure-bearing seat 402, preventing the soil from accumulating on the lower end surface of the pressure-bearing seat 402 and ensuring the accuracy of the detection.

[0033] Embodiment 2

[0034] As Figure 8 compared with Figure 9 shown, compared with Embodiment 1, another implementation manner of the present invention is as follows: The connector 4024 includes a connecting shaft 31. The upper end of the connecting shaft 31 is connected to the gear 4023. The lower end of the connecting shaft 31 is rotatably connected to a shaft sleeve 32. The shaft sleeve 32 is inserted into the rectangular shaft 4025. A ratchet 33 is installed at the lower end of the connecting shaft 31. The ratchet 33 is engaged with three pawls 34. The pawls 34 are hinged inside the upper end of the shaft sleeve 32. Three guide rods 35 are inserted around the upper end of the shaft sleeve 32. A spring 36 is sleeved on the guide rod 35. A pulley 351 is rotatably installed at the end of the guide rod 35. The pulley 351 is rotatably connected to the inner ring of a fixed ring 37. Three card slots 371 are opened on the inner ring of the fixed ring 37, and the three card slots 371 are respectively engaged with the three pulleys 351.

[0035] Specifically, the ratchet 33 is made of magnet material. During the rotation of the gear 4023 driving the connector 4024, the gear 4023 first drives the connecting shaft 31, the connecting shaft 31 drives the ratchet 33 to rotate, the ratchet 33 drives the sleeve 32 to rotate through three pawls 34, and the sleeve 32 drives the rectangular shaft 4025 to rotate, thereby realizing scraping the soil on the lower end surface of the pressure-bearing seat 402. During this process, the rotating sleeve 32 drives the three guide rods 35 to rotate, and the guide rods 35 drive the pulleys 351 to disengage from the card slots 371, causing the guide rods 35 to compress the springs 36. Until the scraper 4027 rotates 180 degrees, under the action of the rebounding force of the spring 36, the pulley 351 is again snapped into the card slot 371. Therefore, when the pressure-bearing seat 402 is lowered again to detect the compaction degree of the roadbed, the gear 4023 together with the sector gear plate 4022 and the rotary pipe 4021 will surely rotate back. At this time, due to the engagement of the pulley 351 and the card slot 371, although the gear 4023 can drive the ratchet 33 to rotate, the ratchet 33 cannot drive the sleeve 32 to rotate through the pawl 34, so that the scraper 4027 cannot rotate, thereby reducing the wear caused by friction between the scraper 4027 and the lower end of the pressure-bearing seat 402 and improving the service life of the scraper 4027 and the pressure-bearing seat 402.

[0036] Working principle: Push the device to the position to be detected, then brake the four sets of rollers 2, and rotate the screw 404. As the screw 404 rotates, the L-shaped part 403 together with the pressure-bearing seat 402 moves downward until the lower end of the screw 404 is flush with the upper end of the L-shaped part 403. At this time, the pressure-bearing seat 402 lands on the ground. Then start the electric push rod 407 to pull the lifting plate 406 upward. The lifting plate 406 drives the load hammer 405 upward through two hooks 408 until the upper end of the hook 408 is squeezed by the inner wall of the inverted trapezoidal groove 4013, causing the two hooks 408 to rotate towards each other and the hook 408 to compress the U-shaped elastic strip 409, thereby releasing the engagement between the hook 408 and the load hammer 405. The load hammer 405 will freely fall along the slide rod 4012, causing the load hammer 405 to strike the pressure-bearing seat 402, embedding the pressure-bearing seat 402 into the ground. At the same time, the ground feedback gives the pressure-bearing seat 402 vibrations. The seismometer 301 picks up the vibration signals generated by the vibration system and transmits them to the vibration signal acquisition and analysis instrument 3 through wires. The vibration signal acquisition and analysis instrument 3 calculates the roadbed compaction degree.

[0037] After the above-mentioned subgrade compactness is detected, rotate the screw rod 404 so that the lower end of the screw rod 404 abuts against the upper end surface of the carrier 1. As the screw rod 404 continues to rotate, the screw rod 404 drives the L-shaped part 403 together with the pressure-bearing seat 402 to move upward. As the pressure-bearing seat 402 moves upward, under the action of gravity, both the movable plate 4026 and the scraper 4027 move downward, causing the scraper 4027 to disengage from the storage groove 4030. At the same time, the lower end surface of the movable plate 4026 is flush with the lower end surface of the pressure-bearing seat 402. During this process, the fixed rod 4014 drives the two groups of pin shafts 41 to slide along the two groups of linear grooves 211 respectively. When the pressure-bearing seat 402 is separated from the ground contact, the pin shaft 41 enters the spiral groove 212 from the linear groove 211, and the pin shaft 41 presses against the inner wall of the spiral groove 212, causing the rotary pipe 4021 together with the sector gear plate 4022 to rotate. The rotating sector gear plate 4022 drives the gear 4023 together with the connector 4024, the rectangular shaft 4025, and the scraper 4027 to rotate 180 degrees. The rotating scraper 4027 scrapes off the soil attached to the lower end surface of the pressure-bearing seat 402;

[0038] During the process of the above-mentioned gear 4023 driving the connector 4024 to rotate, the gear 4023 first drives the connecting shaft 31, the connecting shaft 31 drives the ratchet wheel 33 to rotate, the ratchet wheel 33 drives the sleeve 32 to rotate through the three groups of pawls 34, and the sleeve 32 drives the rectangular shaft 4025 to rotate, thereby realizing scraping off the soil on the lower end surface of the pressure-bearing seat 402. During this process, the rotating sleeve 32 drives the three groups of guide rods 35 to rotate, and the guide rods 35 drive the pulleys 351 to disengage from the card slots 371, causing the guide rods 35 to compress the springs 36. Until the scraper 4027 rotates 180 degrees, under the action of the rebounding force of the springs 36, the pulleys 351 are again snapped into the card slots 371. Therefore, when the pressure-bearing seat 402 is lowered again to detect the subgrade compactness, the gear 4023 together with the sector gear plate 4022 and the rotary pipe 4021 will surely rotate back. At this time, due to the engagement of the pulley 351 and the card slot 371, although the gear 4023 can drive the ratchet wheel 33 to rotate, the ratchet wheel 33 cannot drive the sleeve 32 to rotate through the pawls 34, so that the scraper 4027 cannot rotate.

[0039] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. What is described in the above-mentioned embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic vibration signal acquisition device, comprising a carrier table (1), characterized in that: Four sets of rollers (2) are provided at the bottom of the platform (1), a vibration signal acquisition and analyzer (3) is provided on the platform (1), and a drop hammer mechanism (4) is provided on one side of the vibration signal acquisition and analyzer (3); The drop hammer mechanism (4) includes: A support barrel (401) fixedly installed on the platform (1); A pressure-bearing seat (402) inserted at the lower end of the support barrel (401); An L-shaped member (403) fixedly installed on the pressure-bearing seat (402), and the L-shaped member (403) is screwed with a screw rod (404); A load hammer (405) is provided above the pressure-bearing seat (402), and a lifting plate (406) is provided above the load hammer (405); Two sets of hooks (408) symmetrically hinged on the lifting plate (406), a U-shaped elastic strip (409) is provided on one side of the hook (408), and the lower end of the hook (408) is clamped to the upper end of the load hammer (405); An electric push rod (407) fixedly installed at the upper end of the support barrel (401), and the lower end of the electric push rod (407) is fixedly connected to the lifting plate (406).

2. The fully automatic vibration signal acquisition device according to claim 1, characterized in that: An inverted trapezoidal groove (4013) for unlocking the hook (408) is opened at the upper end of the support barrel (401), two rectangular grooves (4011) are opened on the support barrel (401), a sliding rod (4012) is fixedly installed in the rectangular groove (4011), and two through holes (56) are opened on the pressure-bearing seat (402), the load hammer (405), and the lifting plate (406). The through hole (56) is slidably connected to the sliding rod (4012), and a seismograph (301) is installed in the pressure-bearing seat (402), and the seismograph (301) is electrically connected to the vibration signal acquisition and analyzer (3).

3. The fully automatic vibration signal acquisition device according to claim 2, characterized in that: A rotary pipe (4021) is rotatably installed on the pressure-bearing seat (402); A sector gear plate (4022) is fixedly installed at the lower end of the rotary pipe (4021); A gear (4023) meshing with the sector gear plate (4022), and the sector gear plate (4022) is rotatably installed in the pressure-bearing seat (402); A connector (4024), the upper end of the connector (4024) is connected to the gear (4023), and the lower end of the connector (4024) is inserted with a rectangular shaft (4025); A movable plate (4026), and the lower end of the rectangular shaft (4025) passes through the movable plate (4026) and is fixedly connected to a scraper (4027).

4. The fully automatic vibration signal acquisition device according to claim 3, characterized in that: Two guide grooves (4028) are provided in the pressure-bearing seat (402), the guide grooves (4028) are slidably connected to guide posts (4029), and the lower ends of the guide posts (4029) are fixedly connected to the movable plate (4026).

5. The full-automatic vibration signal acquisition device according to claim 4, characterized in that: A storage groove (4030) is opened at the lower end of the pressure-bearing seat (402), and the movable plate (4026) and the scraper (4027) are both located in the storage groove (4030).

6. The fully automatic vibration signal acquisition device according to claim 5, wherein: The rotary pipe (4021) is inserted into the fixed rod (4014). Two sets of guiding grooves (21) are formed on the rotary pipe (4021), and two sets of pin shafts (41) are arranged on the fixed rod (4014). The two sets of pin shafts (41) are respectively located in the two sets of guiding grooves (21).

7. An automatic vibration signal acquisition device according to claim 6, characterized in that: The guiding groove (21) is composed of a straight groove (211) and a spiral groove (212).

8. The fully automatic vibration signal acquisition device according to claim 7, wherein: The connector (4024) includes: a connecting shaft (31), the upper end of the connecting shaft (31) is connected to the gear (4023); the lower end of the connecting shaft (31) is rotatably connected to a shaft sleeve (32), and the shaft sleeve (32) is inserted into the rectangular shaft (4025); a ratchet wheel (33) is installed at the lower end of the connecting shaft (31), the ratchet wheel (33) is clamped with three pawls (34), and the pawls (34) are hinged inside the upper end of the shaft sleeve (32); three guide rods (35) are inserted around the upper end of the shaft sleeve (32); a spring (36) sleeved on the guide rod (35).

9. An automatic vibration signal acquisition device according to claim 8, characterized in that: A pulley (351) is rotatably installed at the end of the guide rod (35), and the pulley (351) is rotatably connected to the inner ring of the fixed ring (37).

10. The fully automatic vibration signal acquisition device according to claim 9, characterized in that: Three clamping grooves (371) are formed on the inner ring of the fixed ring (37), and the three clamping grooves (371) are respectively clamped with the three pulleys (351).

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