SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving the less technical problem of weight impact force among the current acceleration seismic source excitation device.
The embodiment of the utility model provides an acceleration seismic source excitation device based on SH transverse wave, which comprises a frame, a chopping block, a nitrogen spring, a heavy hammer locking mechanism and a heavy hammer lifting mechanism;
the rack is of a hollow structure with an opening at the lower end; the chopping board is arranged at the bottom of the rack;
the heavy hammer is movably arranged inside the rack and used for impacting the chopping board;
the nitrogen spring is arranged in the rack and is positioned at the upper end of the rack; the nitrogen spring is used for accelerating the heavy hammer;
the weight lifting mechanism is arranged on the outer side of the rack and used for lifting the weight to an upper limit position, so that the weight extrudes the nitrogen spring to a compressed state;
the heavy hammer locking mechanism is arranged on the outer side of the rack and used for locking or releasing the heavy hammer at the upper limit position.
In some preferred embodiments, a first through hole is arranged along the side wall of the frame; a hanging lug is arranged on the side wall of the heavy hammer and extends to the outside of the rack through the first through hole; the weight lifting mechanism lifts the weight through the hanging lug.
In some more preferred embodiments, the weight lifting mechanism is a hydraulic cylinder or a pneumatic cylinder.
In some more preferred embodiments, a second through hole is arranged on the side wall of the frame; the heavy hammer is provided with a limiting block, and the limiting block extends to the outside of the rack through the second through hole; the heavy hammer locking mechanism is matched with the limiting block to lock or release the heavy hammer at the upper limit position.
In some more preferred embodiments, the weight locking mechanism comprises a driving part, a limiting ball and a housing; the shell is arranged on the side face of the rack and communicated with the second through hole; the limiting ball is movably arranged in the shell; the driving component is used for extruding the limiting ball to abut against the limiting block; the limiting ball is matched with the limiting block to lock or release the heavy hammer at the upper limit position; the bottom of shell is provided with the second opening, the second opening is used for dodging the stopper makes the stopper can follow the second through-hole rises to in the shell.
In some more preferred embodiments, the drive component comprises a drive assembly and a top block; the driving assembly is arranged on the side face of the rack and used for driving the top block; the top block is used for extruding the limiting ball to abut against the limiting block.
In some more preferred embodiments, the drive assembly is located directly above the housing; the top of the shell is provided with a first opening; the driving assembly extends into the shell through the first opening and is connected with the top block; the lower end of the top block is provided with an inclined plane; the driving assembly is used for driving the top block to move linearly up and down in the shell; the lower end of the limiting block is provided with a concave cambered surface; the top block is used for extruding the limiting ball to be abutted against the concave cambered surface of the limiting block through the inclined surface.
In some more preferred embodiments, the drive assembly is a hydraulic or pneumatic cylinder; the top of the shell is provided with a first opening; the hydraulic cylinder or the pneumatic cylinder penetrates through the first opening to be connected with the top block.
In some preferred embodiments, the acceleration seismic source excitation device based on SH transverse waves further comprises a connecting plate; the chopping block is detachably connected with the rack through the connecting plate.
In some preferred embodiments, the side surface of the weight is further provided with a plurality of wear-resistant blocks for limiting the movement of the weight along the length direction of the rack.
In some preferred embodiments, the side surface of the frame is further provided with a second fixing plate, and the second fixing plate is used for fixing with a vehicle.
In some preferred embodiments, the SH shear wave-based acceleration seismic source excitation device further comprises a linear guide rail; the linear guide rail is arranged on the side surface of the rack, and a sliding block is arranged on the linear guide rail; the sliding block is provided with a limiting assembly, and the limiting assembly is used for fixing the sliding block at different positions of the linear guide rail; the second fixing plate is arranged on the sliding block.
In some preferred embodiments, the upper end of the side surface of the frame is further provided with a handrail, and the handrail is used for being convenient for a user to hold.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the acceleration seismic source excitation device based on the SH transverse wave comprises a frame, a chopping block, a nitrogen spring, a heavy hammer locking mechanism and a heavy hammer lifting mechanism; the cutting board cutting machine is characterized in that a rack is of a hollow structure with an opening at the lower end, a nitrogen spring is arranged at the upper end in the rack, a heavy hammer is movably arranged in the rack, and a cutting board is arranged at the bottom of the rack; in the using process, the heavy hammer is lifted upwards along the length direction of the rack by the heavy hammer lifting mechanism to extrude the nitrogen spring to a compressed state, and the heavy hammer is locked by the heavy hammer locking mechanism, so that the nitrogen spring is kept in the compressed state; then according to user's needs, through weight latched device release weight, the weight can produce great acceleration under nitrogen spring's effect to great impact force striking chopping block, the utility model provides an acceleration seismic source excitation device based on SH shear wave has that the impact force is big, the depth of detection is big, the high advantage of resolution ratio.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be further described below with reference to the accompanying drawings.
Referring to fig. 1-7, an embodiment of the present invention provides an acceleration seismic source excitation device based on SH shear waves, which includes a frame 1, a cutting board 4, a nitrogen spring 5, a weight 6, a weight locking mechanism 2, and a weight lifting mechanism 3.
The frame 1 is a hollow structure with an upper opening and a lower opening, and the cross section of the frame 1 is rectangular.
The chopping board 4 is arranged at the bottom of the frame 1; the acceleration seismic source excitation device based on the SH transverse wave further comprises a connecting plate 104; the chopping board 4 is detachably connected with the frame 1 through a connecting board 104; the number of the connecting plates 104 is two, and the two connecting plates are oppositely arranged on two sides of the rack 1; one end of the connecting plate 104 is detachably connected with the frame 1 through a bolt, and the other end is movably connected with the chopping board 4 through a rotating shaft; the anvil 4 comprises an anvil 401 and spikes 402; one end of the connecting plate 104 is connected with the anvil block 401; teeth 402 are provided on the bottom of anvil 401, and teeth 402 are tetrahedral teeth.
The weight 6 is movably arranged inside the frame 1 and is used for impacting the chopping board 4.
In this embodiment, the weight 6 has a mass of 100 kg.
The nitrogen spring 5 is arranged inside the frame 1 and is positioned at the upper end of the frame 1; the nitrogen spring 5 is used for accelerating the heavy hammer 6; the top of the frame 1 is provided with a first fixing plate 101; the nitrogen spring 5 comprises a spring base 501, a spring cylinder 502 and a spring piston rod 503; the bottom of the spring base 501 is detachably connected with the first fixing plate 101 through a flange plate; one end of the spring cylinder 502 is fixed in the spring base 501; one end of the spring piston rod 503 is disposed inside the spring cylinder 502, and the other end is in contact with the upper end of the weight 6.
In the present embodiment, the model specification of the nitrogen spring 5 is as follows: the stroke is 300mm, the nominal elastic pressure is 29450N, the cylinder diameter is 95mm, the rod diameter is 50mm, and the inflation pressure is 13.8MPa, and the nitrogen spring 5 in the embodiment can enable the acceleration seismic source excitation device to meet the requirement of the detection depth of 200 m; the nitrogen spring 5 is adopted to drive the heavy hammer 6, and the nitrogen spring 5 has the advantages of small volume, large generated elastic pressure, stable work, long service life and the like, is suitable for being used as a driving module of an acceleration seismic source excitation device and can generate larger acceleration to the heavy hammer 6; meanwhile, the elastic pressure of the nitrogen spring 5 can be adjusted by adjusting the booster pump, the nitrogen spring 5 has different inflation pressures, the initial elastic pressure and the final elastic pressure are different, and the acceleration of the heavy hammer 6 when impacting the anvil block 401 can be adjusted as required.
The weight lifting mechanism 3 is arranged on the outer side of the frame 1 and used for lifting the weight 6 to an upper limit position, so that the weight 6 extrudes the nitrogen spring 5 to a compressed state; one end of the heavy hammer lifting mechanism 3 is movably connected with the frame 1 through a first rear earring hook 107; the upper end of the weight lifting mechanism 3 is detachably mounted on the frame 1 via a first auxiliary handle 105.
The weight locking mechanism 2 is arranged on the outer side of the frame 1 and used for locking or releasing the weight 6 at the upper limit position.
In the using process, the heavy hammer 6 is lifted upwards by the heavy hammer lifting mechanism 3 along the length direction of the rack 1 to press the nitrogen spring 5 to a compressed state; then the heavy hammer 6 is locked by the heavy hammer locking mechanism 2, so that the nitrogen spring 5 is kept in a compressed state; finally, according to the needs of a user, the heavy hammer 6 is released through the heavy hammer locking mechanism 2, the heavy hammer 6 can generate large acceleration under the action of the nitrogen spring 5, and the chopping board 4 is impacted by large impact force to excite a seismic source.
Specifically, a first through hole 1010 is oppositely arranged along the side wall of the rack 1, and the first through hole 1010 is long and is arranged along the length direction of the rack 1; the weight 6 is cylindrical, a pair of hanging lugs 601 is oppositely arranged on the side wall of the weight 6, and the hanging lugs 601 respectively extend to the outside of the rack 1 through the first through hole 1010; correspondingly, the number of the heavy hammer lifting mechanisms 3 is two, and the heavy hammer lifting mechanisms are oppositely arranged on two sides of the rack 1; the weight lifting mechanism 3 lifts the weight 6 via the suspension loop 601. In order to make the heavy hammer 6 move along the length direction of the frame 1, the side surface of the heavy hammer 6 is also provided with a plurality of wear-resisting blocks 603; in this embodiment, the wear-resistant blocks 603 are installed around the weight body 602, and are eight pieces up and down.
In this embodiment, the weight lifting mechanism 3 is a hydraulic cylinder; the hydraulic cylinders are connected to a hydraulic system (not shown in the figures).
In the present embodiment, the weight lifting mechanism 3 is a 5t hydraulic cylinder.
As a variation of this embodiment, the weight lifting mechanism 3 may be a pneumatic cylinder.
Furthermore, a second through hole 1011 is formed in the other side wall of the rack 1, the second through hole 1011 is in a long strip shape, and the second through hole 1011 is formed along the length direction of the rack 1; the weight 6 is provided with a limiting block 604, and the limiting block 604 extends to the outside of the rack 1 through the second through hole 1011; the weight lock mechanism 2 locks or releases the weight 6 at the upper limit position by cooperating with the limiting block 604.
Specifically, the weight latching mechanism 2 includes a driving part, a limiting ball 206 and a housing 202; the shell 202 is arranged on the side surface of the machine frame 1, and the shell 202 is communicated with the second through hole 1011; the limiting ball 206 is movably arranged inside the shell 202; the driving member is used for pressing the limiting ball 206 to abut against the limiting block 604; the limiting ball 206 is matched with the limiting block 604 to lock or release the heavy hammer 6 at the upper limit position; the bottom of the housing 202 is provided with a second opening 205; the width of the second opening 205 is the same as the width of the second through hole 1011; the second opening 205 is used for avoiding the limit block 604, so that the limit block 604 can rise into the housing 202 along the second through hole 1011; the housing 202 is used for hiding the top block 203 and the limiting ball 206 inside, and plays a role in beauty and guidance.
Specifically, the drive component includes a drive assembly 201 and a top block 203; the driving assembly 201 is arranged on the side surface of the frame 1 and is used for driving the top block 203; the driving component 201 and the second through hole 1011 are located on the same side of the frame 1; the top piece 203 is used to press the stop ball 206 into abutment with the stop block 604.
Specifically, the drive assembly 201 is located directly above the housing 202; one end of the driving component 201 is movably connected with the frame 1 through a second rear earring hook 106, and the other end is detachably mounted on the side surface of the frame 1 through a second auxiliary handle 1012; the top of the housing 202 is provided with a first opening 204; the driving assembly 201 extends into the housing 202 through the first opening 204 and is connected with the top block 203; in order to conveniently extrude the limiting ball 206 towards the limiting block 604, the lower end of the top block 203 is provided with an inclined surface; the driving assembly 201 is used for driving the top block 203 to move up and down in the shell 202 in a linear manner; when the weight 6 moves towards the chopping board 4, in order to facilitate the limiting block 604 to extrude the limiting ball 206 outwards, the lower end of the limiting block 604 is provided with a concave arc surface; the top block 203 is used for pressing the limiting ball 206 to abut against the concave cambered surface of the limiting block 604 through the inclined surface of the top block 203.
In this embodiment, the driving assembly 201 is a hydraulic cylinder; the top of the housing 202 is provided with a first opening 204; a hydraulic cylinder is connected to the top piece 203 through the first opening 204, said hydraulic cylinder being connected to a hydraulic system (not shown in the figures).
In this embodiment, the driving assembly 201 is a 12t hydraulic cylinder.
As a variation of this embodiment, the driving assembly 201 may also be a pneumatic cylinder.
Further, the side surface of the frame 1 is also provided with a second fixing plate 103 and a linear guide rail 108; the second fixing plate 103 is used for fixing with a vehicle; the linear guide rail 108 is arranged on the other side surface of the rack 1 opposite to the heavy hammer locking mechanism 2, and a sliding block 109 is arranged on the linear guide rail 108; the sliding block 109 is provided with a limiting assembly, and the limiting assembly is used for fixing the sliding block 109 at different positions of the linear guide rail 108; the second fixing plate 103 is detachably mounted on the slider 109; the limiting assembly comprises a plurality of limiting holes 1013 uniformly distributed along the linear guide rail 108, a threaded through hole 1014 positioned on the sliding block 109 and a screw rod; when the fixing device is used, the sliding block 109 is moved to a required height and screwed into the screw rod to the limiting hole 1013 through the thread through hole 1014, so that the sliding block 109 is fixed; the second fixing plate 103 is then detachably coupled to the slider 109 by means of screws.
Further, the upper end of the side surface of the frame 1 is also provided with a handrail 102, and the handrail 102 is convenient for a user to hold; the number of the handrails 102 is two, and the two handrails 102 are oppositely arranged at two sides of the rack 1 and positioned at the upper end of the rack 1; the armrest 102 is detachably connected to the frame 1.
The working process of the acceleration seismic source excitation device based on the SH transverse wave in the embodiment is as follows:
the weight lifting mechanism 3 drives the hanging lug 601 to lift the weight 6 upwards along the length direction of the rack 1 until the nitrogen spring 5 is pressed to be in a compressed state, so that the limiting block 604 is positioned in the shell 202; then, the top block 203 is driven by the driving assembly 201, and under the guiding action of the shell 202, the top block 203 extrudes the limiting ball 206 through the inclined surface to be abutted against the concave arc surface of the limiting block 604, so that the heavy hammer 6 is locked, and the nitrogen spring 5 is kept in a compressed state; finally, according to the requirement of the user, the weight 6 is released by the weight locking mechanism 2, the weight 6 pushes the limiting ball 206 away by the concave arc surface of the limiting block 604 under the action of the nitrogen spring 5 and the self gravity, then moves downwards in an accelerated manner, strikes the chopping board 4, and excites the SH transverse wave through the spike teeth 402.
The acceleration seismic source exciting device based on the SH transverse waves in the embodiment has the advantages that the structure is simple, the installation, the maintenance and the transportation are convenient, the SH transverse waves with high resolution can be excited during use, the energy output can reach 3200J, the exploration depth can reach 200m underground, good P energy and S energy are provided at the depth of 150 m, and the device can be better applied to the field of underground space exploration.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the upper limit positions of the components relative to each other, and are only used for the clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.