CN221225028U - Controlled seismic source device for additional mass method - Google Patents

Abstract

The application discloses a controllable seismic source device for an additional mass method, which relates to the field of compaction quality detection of rock-fill dams and comprises a mounting frame, a vibrating hammer, an automatic lifting hook and a driving mechanism for driving the automatic lifting hook to lift. According to the application, the driving mechanism is controlled to drive the automatic lifting hook to move downwards to grab the exciting hammer, and the automatic lifting hook is controlled to release the exciting hammer after the exciting hammer is lifted to a certain height, so that the exciting hammer starts to perform a test in free falling motion, the influence of human factors on a detection result is effectively reduced, and the precision of the detection result is improved.

Description

Controlled seismic source device for additional mass method

Technical Field

The application relates to the field of rock-fill dam compaction quality detection, in particular to a controllable seismic source device for an additional quality method.

Background

An additional mass method can be used for detecting the compaction density and the compaction mass of the rock-fill dam, and is based on the energy-vibration-inversion theory. The additional mass method is characterized in that the additional mass is equivalent to a undamped single-degree-of-freedom line elastic system under the vibration condition in a mode of loading the additional mass in a grading manner, so that the rigidity and the vibration reference mass of the rock-fill dam are obtained, the density and the compaction mass of the rock-fill dam are inverted, and the compaction evaluation of the rock-fill dam is realized.

In the related technology, the seismic source adopted in the test of the additional mass method is a manual seismic source, namely, the manual lifting of the exciting hammer to a certain height is carried out, the exciting hammer falls freely, the rock-fill dam is hammered to vibrate, then a sensor and a computer sound card are utilized to receive and analyze vibration signals of the rock-fill dam, and further, a compaction density inversion calculation model of the rock-fill dam is constructed.

In the actual detection process, the mode of the artificial seismic source is adopted, although the method is simple and convenient to operate, due to the requirement in the hydraulic and hydroelectric engineering geophysical prospecting regulations (DL/T5010), the weight of an excitation hammer is not less than 50kg, and the repeated test is needed in the signal acquisition process, and when the excitation hammer is manually lifted for testing, the repeated test is difficult to be carried out at the same height due to the fact that the mode is greatly influenced by human factors, so that the constructed rock-fill dam inversion model is not accurate enough, and the accuracy of rock-fill dam compaction density detection is directly influenced.

Disclosure of utility model

In order to improve the detection precision of detection by using an additional mass method, the application provides a controllable seismic source device for the additional mass method.

The application provides a controllable seismic source device for an additional mass method, which adopts the following technical scheme:

The utility model provides an additional quality method is with controllable focus device, includes mounting bracket, exciting hammer, automatic lifting hook and is used for driving the actuating mechanism that automatic lifting hook goes up and down, actuating mechanism is fixed to be located the mounting bracket top, actuating mechanism's output and automatic lifting hook fixed connection, automatic lifting hook is used for right the lug of exciting hammer snatchs or releases.

Through adopting above-mentioned technical scheme, can control actuating mechanism and drive automatic lifting hook and move down, and then automatic lifting hook is located the excitation hammer on ground and is snatched, and control actuating mechanism again drives the promotion that the excitation hammer is lasting through automatic lifting hook, after promoting to appointed height, can control automatic lifting hook and release the excitation hammer, make the excitation hammer carry out free fall motion and begin to test. The influence of human factors on the exciting hammer is effectively reduced in the falling process of the exciting hammer, and the accuracy of the detection result is further improved.

Preferably, the automatic lifting hook comprises a hollow circular ring provided with a notch and a locking assembly positioned in the hollow circular ring, the notch is arranged at the bottom of the hollow circular ring in the vertical direction, and the locking assembly is used for opening or closing the notch.

Through adopting above-mentioned technical scheme, when locking subassembly seals the breach for snatch the lug of exciting hammer, when locking subassembly opens the breach, be used for the release to the exciting hammer, realize snatching and releasing the automation of exciting hammer, the holistic automation and the convenience of hoisting device.

Preferably, the locking assembly comprises a first electromagnet positioned at one side of the notch of the hollow circular ring and a second electromagnet positioned at the other side of the notch of the hollow circular ring, wherein the first electromagnet and the second electromagnet are both attached to the inner wall of the hollow circular ring, a mounting block is fixedly arranged at the top of the hollow circular ring, a first tension spring is connected between one side of the mounting block and the first electromagnet, and a second tension spring is connected between the other side of the mounting block and the second electromagnet.

By adopting the technical scheme, when the first electromagnet and the second electromagnet are electrified at the same time, the first electromagnet and the second electromagnet are attracted to each other and attached together, so that the notch is closed; when the first electromagnet and the second electromagnet are powered off simultaneously, the magnetic force between the first electromagnet and the second electromagnet disappears, and the first electromagnet and the second electromagnet retract into the hollow ring under the action of the first tension spring and the second tension spring respectively, so that the notch is opened.

Preferably, the driving mechanism comprises a winch arranged horizontally and a rotating motor for driving the winch to rotate, a winch support is fixedly arranged at the top of the mounting frame, the winch support is rotationally connected with the shaft part of the winch, the rotating motor is fixedly arranged at the top of the mounting frame, an output shaft of the rotating motor is fixedly connected with the shaft part of the winch, a steel wire rope is wound on the winch, and an outgoing line end of the steel wire rope is fixedly connected with the top of the automatic lifting hook.

Through adopting above-mentioned technical scheme, can control and rotate the motor and rotate, drive the capstan winch and rotate to realize rising and running down winding wire rope on the capstan winch, and then reach the lift to automatic lifting hook.

Preferably, the fixed support is a tripod structure, the fixed support comprises a top platform and a tripod supported between the top platform and the ground, and a tightening safety rope is connected between the bottoms of every two of the tripod.

Through adopting above-mentioned technical scheme, tripod structure occupation space is less, sets up the safety rope of tightening simultaneously, can effectually avoid the foot rest to empty under the load of shock excitation hammer.

Preferably, each foot rest comprises a fixed bracket and a movable bracket inserted into the fixed bracket, and the movable brackets and the fixed brackets are arranged in a sliding manner;

And a limiting structure is arranged between the fixed support and the movable support and used for limiting and fixing the fixed support and the movable support.

Through adopting above-mentioned technical scheme, can be through adjusting the position of movable support in the fixed bolster to fix through limit structure, realize the regulation of foot rest length, improved the suitability of equipment at uneven place.

Preferably, the limiting structure comprises a limiting bolt and a limiting nut, a plurality of first through holes are formed in the fixing support in a penetrating mode, second through holes are formed in the movable support in a penetrating mode, and the limiting bolt sequentially penetrates through the first through holes and the second through holes and fixes the position of the movable support through the limiting nut.

Through adopting above-mentioned technical scheme, stop bolt wears to locate first through-hole and second through-hole in proper order to fix through stop nut, realized the fixed bolster and movable support between can dismantle fixedly.

Preferably, the automatic lifting device further comprises a storage battery, wherein the driving mechanism and the automatic lifting hook are both electrically connected with the storage battery;

The storage battery and the driving mechanism are electrically connected with a first switch, and the storage battery and the automatic lifting hook are electrically connected with a second switch.

Through adopting above-mentioned technical scheme, can supply power to actuating mechanism and automatic lifting hook through the battery, avoid external generator in scene or alternating current, reduced use cost, improved the security of equipment.

Preferably, a power supply protection device is arranged between the automatic lifting hook and the driving mechanism and the storage battery.

By adopting the technical scheme, the power supply protection device can effectively protect the storage battery and the equipment from adverse factors such as voltage fluctuation, harmonic interference, electromagnetic radiation and the like, and is beneficial to improving the stability of the equipment.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The automatic lifting hook is driven to move downwards by the control driving mechanism to grab the exciting hammer, and is controlled to release the exciting hammer after being lifted to a certain height by the driving mechanism, so that the exciting hammer starts to perform free falling movement to perform testing, the influence of human factors on a detection result is effectively reduced, and the precision of the detection result is improved;

2. The automatic grabbing and releasing of the automatic lifting hook to the exciting hammer are realized by means of the matching arrangement of the first electromagnet and the second electromagnet of the first tension spring and the second tension spring, and the whole automation and convenience of the device are improved;

3. By means of the movable support and the fixed support, the position of the movable support in the fixed support is adjusted, the movable support is fixed through the corresponding limiting structure, the length of the foot rest is adjusted, and the applicability of the device on uneven sites is improved.

Drawings

FIG. 1 is an axial schematic view showing the overall structure of the present embodiment;

FIG. 2 is a schematic diagram showing the overall structure of the present embodiment;

FIG. 3 is a longitudinal cross-sectional view of the present embodiment, mainly embodying automatic hook grasping;

Fig. 4 is a longitudinal sectional view showing mainly the release of the automatic hook in the present embodiment.

Reference numerals: 1. a mounting frame; 101. a top platform; 102. a foot rest; 1021. a fixed bracket; 1022. a movable bracket; 1023. a first through hole; 1024. a second through hole; 1025. a limit bolt; 1026. a limit nut; 103. a safety rope; 2. a driving mechanism; 201. a rotating motor; 202. a winch; 203. a wire rope; 204. a winch support; 3. an automatic lifting hook; 301. a hollow ring; 302. a locking assembly; 3021. a first electromagnet; 3022. a second electromagnet; 3023. a first tension spring; 3024. a second tension spring; 303. a mounting block; 304. a notch; 4. exciting a hammer; 5. a storage battery; 501. a first switch; 502. and a second switch.

Detailed Description

The present application will be described in further detail with reference to the accompanying drawings.

The embodiment of the application discloses a controllable seismic source device for an additional mass method.

Referring to fig. 1, the vibroseis device for the additional mass method includes a mounting frame 1, a driving mechanism 2, an automatic hook 3, a damper 4 and a battery 5, wherein the mounting frame 1 adopts a tripod 102 structure, and is composed of a top platform 101 and three foot stands 102 arranged between the ground and the top platform 101, and in this embodiment, the foot stands 102 are telescopic structures. The actuating mechanism 2 is fixed to be located the lower surface of top platform 101, and automatic lifting hook 3 links to each other with actuating mechanism 2's output, and automatic lifting hook 3 is used for snatching and releasing the lug of exciting hammer 4. The driving mechanism 2 and the automatic lifting hook 3 are electrically connected with the storage battery 5, and are powered by the storage battery 5, so that an external generator or alternating current on site is avoided, the use cost is reduced, and the safety of equipment is improved.

Referring to fig. 2, the driving mechanism 2 includes a rotation motor 201 and a capstan 202 which are fixedly and horizontally disposed on the lower surface of the top platform 101, a shaft portion of the capstan 202 is fixedly connected to an output shaft of the rotation motor 201, a capstan support 204 is fixedly disposed on the lower surface of the top platform 101, and a shaft portion of the capstan 202 is rotatably connected to the capstan support 204. The winch 202 is wound with a steel wire rope 203, and the wire outlet end of the steel wire rope 203 is fixedly connected with the top end of the automatic lifting hook 3.

The rotary motor 201 is electrically connected with the battery 5, and a first switch 501 is provided between the rotary motor 201 and the battery 5 for controlling the turning on and off of the rotary motor 201. The power supply protector is arranged between the storage battery 5 and the first switch 501, so that circuits and equipment can be effectively protected from adverse factors such as voltage fluctuation, harmonic interference, electromagnetic radiation and the like, and the stability of the equipment can be improved.

Referring to fig. 2 to 4, the automatic hook 3 includes a hollow ring 301 provided with a notch 304 and a locking assembly 302 disposed in the hollow ring 301, the notch 304 of the hollow ring 301 is disposed at the bottom of the hollow ring 301 in the vertical direction, a through hole is disposed at the top of the hollow ring 301, and a wire rope 203 is disposed in the through hole in a penetrating manner, so that the wire rope 203 pulls the hollow ring 301, and the locking assembly 302 is used for opening or closing the notch 304 of the hollow ring 301, so as to grasp and release the lifting lug of the exciting hammer 4.

The locking assembly 302 comprises a first electromagnet 3021 located at one side of a notch 304 in the hollow circular ring 301 and a second electromagnet 3022 located at the other side of the notch 304 in the hollow circular ring 301, a mounting block 303 is fixedly arranged in the hollow circular ring 301 located at the through hole, the first electromagnet 3021 and the second electromagnet 3022 are respectively located at two sides of the mounting block 303, a first tension spring 3023 is fixedly connected between one side of the mounting block 303 and the first electromagnet 3021, and a second tension spring 3024 is fixedly connected between the other side of the mounting block 303 and the second electromagnet 3022.

First and second electromagnets 3021 and 3022 are both electrically connected to battery 5, and second switch 502 is provided between first and second electromagnets 3021 and 3022 and battery 5 for simultaneously powering on and off first and second electromagnets 3021 and 3022. The power supply protector is arranged between the storage battery 5 and the second switch 502, so that the circuit and the equipment can be effectively protected from adverse factors such as voltage fluctuation, harmonic interference, electromagnetic radiation and the like, and the stability of the equipment is improved.

The first electromagnet 3021 and the second electromagnet 3022 are mutually matched, and when the first electromagnet 3021 and the second electromagnet 3022 are electrified at the same time, the first electromagnet 3021 and the second electromagnet 3022 are attracted and attached at the notch 304, so that lifting lugs at the top of the exciting hammer 4 are grabbed; when the first electromagnet 3021 and the second electromagnet 3022 are powered off simultaneously, the first electromagnet 3021 and the second electromagnet 3022 lose magnetic force and are separated, the first electromagnet 3021 retracts into the hollow circular ring 301 under the action of the first tension spring 3023, the second electromagnet 3022 also retracts into the hollow circular ring 301 under the action of the second tension spring 3024, the lifting lug of the exciting hammer 4 is released, and the exciting hammer 4 performs free falling motion under the action of gravity and further starts to detect.

Referring to fig. 2, the tripod 102 includes a fixed support 1021 and a movable support 1022, the movable support 1022 is inserted into the fixed support 1021, one end of the fixed support 1021 away from the movable support 1022 is detachably and fixedly connected with the ground, in this embodiment, a base is disposed on the ground, and one end of the fixed support 1021 is fixedly connected with the base through bolts and nuts. One end of the movable bracket 1022, which is far away from the fixed bracket 1021, is detachably and fixedly connected with the top platform 101, in this embodiment, a mounting seat is fixedly arranged on the lower surface of the top platform 101, and one end of the movable bracket 1022 is fixedly connected with the mounting seat through bolts and nuts.

A plurality of first through holes 1023 are arranged on the fixed support 1021 in an array manner, a plurality of second through holes 1024 matched with the first through holes 1023 are arranged on the movable support 1022 in an array manner, and a limiting structure is arranged between the fixed support 1021 and the movable support 1022 and used for limiting and fixing the positions of the adjusted movable support 1022 and the fixed support 1021.

In this embodiment, limit structure includes limit bolt 1025 and limit nut 1026, is carrying out spacing fixed to fixed bolster 1021 and movable bolster 1022, and limit bolt 1025 wears to locate first through-hole 1023 and second through-hole 1024 in proper order to fix through limit nut 1026, realize the regulation of foot rest 102 length, improved the suitability of equipment at uneven place. In other embodiments, the limiting structure may be other detachable fixing structures.

Referring to fig. 2, the bottom of each foot stand 102 is welded with a rope fastener, and the rope fastener between every two foot stands 102 is connected with a tight safety rope 103, so that the foot stands 102 can be effectively prevented from falling under the load of the exciting hammer 4.

The implementation principle of the controlled source device for the additional mass method in the embodiment of the application is as follows: according to specific construction conditions, the position of the movable support 1022 in the fixed support 1021 is adjusted, and the fixed support 1021 and the sliding frame are subjected to limit fixation through a limit bolt 1025 and a limit nut 1026, so that the installation of the installation frame 1 is completed;

When the exciting hammer 4 is required to be hoisted, the rotating motor 201 is controlled to drive the steel wire rope 203 on the winch 202 to be released, the hollow circular ring 301 is lowered, when the notch 304 of the hollow circular ring 301 contacts the hollow part of the hoisting ring part of the exciting hammer 4, the electromagnet is electrified through the second switch 502, and the two opposite electromagnets are attached, so that the locking hoisting of the exciting hammer 4 is realized;

Controlling the rotating motor 201 to rotate reversely to drive the hollow circular ring 301 to move upwards so as to lift the exciting hammer 4, and controlling the second switch 502 to cut off the power of the electromagnet after the exciting hammer 4 is lifted to a specified height so as to release the exciting hammer 4, and enabling the exciting hammer 4 to freely fall under gravity and start to detect;

Repeating the lifting and releasing processes until the detection by the additional mass method is completed, and completing the work.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (9)

1. The utility model provides a controllable focus device for additional mass method, includes mounting bracket (1) and excitation hammer (4), its characterized in that: still include automatic lifting hook (3) and be used for driving actuating mechanism (2) that automatic lifting hook (3) goes up and down, actuating mechanism (2) are fixed to be located mounting bracket (1) top, the output and the automatic lifting hook (3) fixed connection of actuating mechanism (2), automatic lifting hook (3) are used for right the lug of exciting hammer (4) snatchs or releases.

2. The apparatus of claim 1, wherein: the automatic lifting hook (3) comprises a hollow circular ring (301) provided with a notch (304) and a locking assembly (302) positioned in the hollow circular ring (301), wherein the notch (304) is formed in the bottom of the hollow circular ring (301) in the vertical direction, and the locking assembly (302) is used for opening or closing the notch (304).

3. A vibroseis device for additive mass methods as claimed in claim 2, characterized in that: the locking assembly (302) comprises a first electromagnet (3021) located at one side of an inner notch (304) of the hollow circular ring (301) and a second electromagnet (3022) located at the other side of the inner notch (304) of the hollow circular ring (301), the first electromagnet (3021) and the second electromagnet (3022) are both attached to the inner wall of the hollow circular ring (301), an installation block (303) is fixedly arranged at the top of the hollow circular ring (301), a first tension spring (3023) is connected between one side of the installation block (303) and the first electromagnet (3021), and a second tension spring (3024) is connected between the other side of the installation block (303) and the second electromagnet (3022).

4. A vibroseis device for additive mass methods according to any of claims 1-3, characterized in that: the driving mechanism (2) comprises a winch (202) which is horizontally arranged and a rotating motor (201) which is used for driving the winch (202) to rotate, a winch support (204) is fixedly arranged at the top of the mounting frame (1), the winch support (204) is rotationally connected with the shaft part of the winch (202), the rotating motor (201) is fixedly arranged at the top of the mounting frame (1), an output shaft of the rotating motor (201) is fixedly connected with the shaft part of the winch (202), a steel wire rope (203) is wound on the winch (202), and an outgoing line end of the steel wire rope (203) is fixedly connected with the top of the automatic lifting hook (3).

5. A vibroseis device for additive mass methods according to any of claims 1-3, characterized in that: the mounting frame (1) is of a tripod (102) structure, the mounting frame (1) comprises a top platform (101) and three feet (102) supported between the top platform (101) and the ground, and tightening safety ropes (103) are connected between the bottoms of every two feet (102).

6. The apparatus of claim 5, wherein: each foot rest (102) comprises a fixed bracket (1021) and a movable bracket (1022) inserted into the fixed bracket (1021), and the movable brackets (1022) and the fixed brackets (1021) are arranged in a sliding manner;

A limiting structure is arranged between the fixed support (1021) and the movable support (1022), and the limiting structure is used for limiting and fixing the fixed support (1021) and the movable support (1022).

7. The apparatus of claim 6, wherein: the limiting structure comprises a limiting bolt (1025) and a limiting nut (1026), a plurality of first through holes (1023) are formed in the fixed support (1021) in a penetrating mode, second through holes (1024) are formed in the movable support (1022) in a penetrating mode, the limiting bolt (1025) penetrates through the first through holes (1023) and the second through holes (1024) in sequence, and the position of the movable support (1022) is fixed through the limiting nut (1026).

8. A vibroseis device for additive mass methods according to any of claims 1-3, characterized in that: the automatic lifting hook also comprises a storage battery (5), wherein the driving mechanism (2) and the automatic lifting hook (3) are electrically connected with the storage battery (5);

A first switch (501) is electrically connected between the storage battery (5) and the driving mechanism (2), and a second switch (502) is electrically connected between the storage battery (5) and the automatic lifting hook (3).

9. The apparatus of claim 8, wherein: a power supply protection device is arranged between the automatic lifting hook (3) and the driving mechanism (2) and the storage battery (5).