CN113686954B - Small exciting hammer for detecting stress wave of anchor rod and using method of small exciting hammer - Google Patents
Small exciting hammer for detecting stress wave of anchor rod and using method of small exciting hammer Download PDFInfo
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- CN113686954B CN113686954B CN202110796065.1A CN202110796065A CN113686954B CN 113686954 B CN113686954 B CN 113686954B CN 202110796065 A CN202110796065 A CN 202110796065A CN 113686954 B CN113686954 B CN 113686954B
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- 238000000034 method Methods 0.000 title claims description 11
- 230000006835 compression Effects 0.000 claims abstract description 46
- 238000007906 compression Methods 0.000 claims abstract description 46
- 238000003825 pressing Methods 0.000 claims abstract description 42
- 230000005284 excitation Effects 0.000 claims abstract description 23
- 238000001514 detection method Methods 0.000 claims description 17
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 238000010030 laminating Methods 0.000 claims description 8
- 238000009659 non-destructive testing Methods 0.000 abstract description 2
- 230000005389 magnetism Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002360 explosive Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
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- 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
- G01N29/04—Analysing solids
- G01N29/045—Analysing solids by imparting shocks to the workpiece and detecting the vibrations or the acoustic waves caused by the shocks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention belongs to the technical field of nondestructive testing, and discloses an excitation hammer for detecting stress waves of an anchor rod. According to the invention, the top end of the rack is meshed with the bottom end of the gear ring, when the right end of the pressure lever is continuously and slowly pressed, the gear ring drives the fixed shaft to continuously rotate for three circles, and after the compression spring is compressed to the limit, the elasticity of the compression spring can drive the magnetic block to be separated from the attaching plate, so that the rack moves leftwards, and therefore, the fixed shaft can drive the impact block and the hammer head to knock for six times through the connecting rod by pressing the pressure lever once, and the labor intensity of operators is greatly reduced.
Description
Technical Field
The invention belongs to the technical field of nondestructive testing, and particularly relates to an excitation hammer for anchor rod stress wave testing.
Background
The anchor rod is used as an effective and simple anchoring measure to be widely applied to projects such as slope and cavern stability, the stress state, the anchor rod length and the grouting compactness of the anchor rod are very concerned in the project field, at present, the anchor rod nondestructive detector based on the stress wave detection principle is an effective detection measure, the conventional anchor rod nondestructive detector mainly comprises a host, a stress wave receiver and an excitation hammer, the using steps are that the stress wave receiver is adsorbed on the end face of the anchor rod after the instrument is connected and started, and then the excitation hammer is used for knocking the end face of the anchor rod to provide excitation, so that the test is completed.
When the existing small exciting hammer is used, a knocking mode is often adopted to knock the end face of the anchor rod, when the hammer is knocked, in order to lighten the force storage process of a user, a pressing structure is often adopted to drive a pressing block to knock the hammer head, but when the existing pressing structure is used, the effect of knocking the hammer head once can only be achieved by pressing once, but when the hammer head is detected, the anchor rod is often required to be knocked for many times, therefore, when the hammer is used, an operator is required to press the hammer head repeatedly in a reciprocating mode, and the labor intensity of the operator is increased.
When using, the existing small exciting hammer mostly adopts a pressing type structure to provide excitation, but when pressing, the existing small exciting hammer mostly can only finish knocking once, when the anchor rod is knocked for many times to detect, the hammer head needs to be repeatedly pressed to realize knocking for many times, but when pressing, an operator often cannot control the contact position of the hammer head and the end face of the anchor rod to be in the same point, when knocking repeatedly, the knocking drop point is different at every time, and the detection accuracy of the device is reduced.
When the conventional small exciting hammer is used for detecting the anchor rod, the cross section area of the anchor rod is small, so that the stress wave receiver can be damaged when the conventional small exciting hammer is used for knocking the end surface of the anchor rod, and the service life of the device is shortened.
Disclosure of Invention
The invention aims to provide an excitation hammer for detecting the stress wave of an anchor rod, so as to solve the problems in the background technology.
In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides an excitation sledgehammer for stock stress wave detects, includes the hammer handle, the top fixed mounting of hammer handle has the tup, the right-hand member of tup is equipped with fixed subassembly, fixed subassembly's middle part swing joint has the movable plate, the left surface fixed mounting of movable plate has the striking piece, the bottom fixed mounting of movable plate right flank has a support seat, the top swing joint of support seat rear end has the rotation axis, the front end fixed mounting of rotation axis has the rotor plate, the middle part fixed mounting of rotation axis has the ring gear, the right-hand member fixed mounting of rotor plate front face has the fixed axle, the right surface fixed mounting of movable plate has the connection axle bed, the surface swing joint of connecting axle bed and fixed axle has the connecting rod, when the fixed axle upwards rotates, because the length of connecting rod is fixed, can drive the connection axle bed and move the certain distance to the left, after the fixed axle upwards rotates one hundred eighty degrees, the connecting rod is in the horizontality, connects the axle bed motion to the leftmost side this moment, makes the connection movable plate drive and the striking piece move to the leftmost side, and the right-hand member with the tup passes in the inner chamber of fixed plate and contacts to realize striking the rotor plate striking production excitation, the rear side of rotor plate is equipped with the rack, the right-hand member that the right-hand member runs through-axis is installed.
Preferably, the right side fixed mounting of hammer handle has the subassembly of pressing, the right flank fixed mounting of hammer handle has reset spring, the top fixed mounting who presses the subassembly has the fixed block, the left surface fixed mounting of fixed block has the binding plate, the right-hand member fixed mounting of support seat has fixed box, the right flank fixed mounting of fixed box inner chamber has compression spring, compression spring's elasticity can drive and run through axle left shift, thereby drive the rack and move left, make the rack can drive the rotor plate clockwise rotation, thereby can realize that the connecting rod drives the striking piece and move the cubic once more left, thereby realize pressing the depression bar once and realize continuously knocking the right-hand member of tup, loosen the depression bar, reset spring's elasticity can drive the bottom of depression bar and rotate right this moment, make the top of depression bar rotate left, drive binding plate through the fixed block once more and laminate with the magnetic block, wait for next time to detect, thereby realize not needing the manual device that resets of operating personnel, operating personnel's intensity of labour has been reduced.
Preferably, the tup is because cylinder and circular cone constitute, the diameter value of tup cylinder end equals the diameter value of tup cone end, the circular cone end fixed mounting of tup is in the left side of tup cylinder end, when using, at first with the left end of tup and the terminal surface contact of stock, because the left end of tup sets up to coniform, when tup and stock terminal surface contact, can make the tup be the point contact with the terminal surface of stock, its drop point can stably fall in the terminal surface department of stock when knocking, avoided when knocking, pounding the condition of stress wave receiver, avoid detection device to damage, increased the life of device.
Preferably, fixed subassembly includes the clamp splice, the clamp splice sets up the right side on hammer handle top, the right flank fixed mounting of clamp splice has the fixed plate, the equal fixed mounting in four corners department of fixed plate right flank has the location axle, the right-hand member fixed mounting of location axle has the limiting plate, the bottom swing joint of fixed plate has the countersunk head bolt, the left end of countersunk head bolt runs through the right-hand member of fixed plate, clamp splice and hammer handle in proper order, the left end meshing of countersunk head bolt is at the top of hammer handle right-hand member, movable plate swing joint is on the surface of location axle, and the location axle is fixed a position and is led to the motion of movable plate to stability when having guaranteed the movable plate motion to fix clamp splice and fixed plate on the right side of hammer handle through the countersunk head bolt, can separate hammer handle and fixed subassembly through dismantling the countersunk head bolt, conveniently maintain and deposit the device.
Preferably, the pressing assembly includes the hanger plate, hanger plate fixed mounting is at the right flank of hammer handle, the right-hand member swing joint of hanger plate has the fixed pin, the surperficial swing joint of fixed pin has the depression bar, fixed block fixed mounting is on the top of depression bar, reset spring's right-hand member fixed mounting presses the depression bar to the direction of hammer handle on the left surface of depression bar bottom, and the fixed pin moves the axle center as the depression bar when the depression bar moves left, can realize that the top that makes the depression bar drives the fixed block and the binding plate moves to the right, when the binding plate moves to the right, can drive and drive the magnetic block through the magnetic force between magnetic block and the binding plate and move to the right.
Preferably, the top end of the rack is meshed with the bottom end of the gear ring, a T-shaped sliding groove is formed in the bottom end of the rack, a T-shaped sliding rail is fixedly mounted on the front side face of the rear end of the supporting seat, the T-shaped sliding rail fixedly mounted on the front side face of the rear end of the supporting seat is movably connected into the T-shaped sliding groove formed in the bottom end of the rack, the T-shaped sliding rail can position and guide the movement of the rack, the stability of the rack in movement is guaranteed, when the magnetic block moves rightwards, the rack can be driven to move rightwards through the penetrating shaft, and through the meshing of the top end of the rack and the gear ring, the gear ring can drive the rotating shaft to rotate, so that the rotating plate rotates anticlockwise, and the rotating plate can drive the fixed shaft fixedly mounted on the front side face of the rotating plate to rotate anticlockwise.
Preferably, run through axle swing joint in the inner chamber of fixed box, the left end of running through the axle comprises the cylinder board, the right-hand member of running through the axle comprises the cylinder axle, the magnetism piece is located the right side of fixed box, the cross sectional shape of magnetism piece is circular, runs through the axle and connects rack and magnetism piece, and when running through the axle motion, fixed box can support the motion of running through the axle to the stability of running through the axle motion has been guaranteed.
Preferably, the cross sectional shape of attaching plate is convex, the centre of a circle of attaching plate and the centre of a circle of magnetic block are in the same point, the left surface of attaching plate and the right flank laminating of magnetic block, through the arc contact between attaching plate and the magnetic block, the increase attaching plate of very big degree meets with the contact surface of magnetic block, when attaching plate rotates right, can slide downwards in the surface of magnetic block to make the magnetism between attaching plate and the magnetic block be connected closely stably more.
Preferably, compression spring activity cup joints on the surface that runs through axle cylinder axle head, compression spring's left end fixed mounting is at the right flank that runs through axle cylinder board end, after compression spring compressed extreme position, and the power that the laminating board drove the magnetic block through magnetic force and moved right is less than the power that compression spring elastic drive was applyed on running through axle cylinder board, and compression spring's elasticity can drive the left removal of running through axle this moment.
Preferably, the method comprises the following steps:
when the binding plate moves rightwards, the magnetic block can be driven to move rightwards through magnetic force between the magnetic block and the binding plate;
when the magnetic block moves rightwards, the through shaft can drive the rack to move rightwards, and the gear ring can drive the rotating shaft to rotate through the meshing of the top end of the rack and the gear ring, so that the rotating plate rotates anticlockwise, and the rotating plate can drive the fixed shaft fixedly arranged on the front side surface of the rotating plate to rotate anticlockwise when rotating;
when the fixed shaft rotates upwards, the connecting shaft seat can be driven to move leftwards for a certain distance because the length of the connecting rod is fixed, and after the fixed shaft rotates upwards for one hundred eighty degrees, the connecting rod is in a horizontal state, the connecting shaft seat moves to the leftmost side, so that the connecting shaft seat drives the moving plate and the impact block to move to the leftmost side, and the impact block passes through the inner cavity of the fixed plate and contacts with the right end of the hammer head, so that the hammer head is impacted to generate excitation, the excitation is transmitted to the end surface of the anchor rod through the hammer head, and the anchor rod is excited;
when the fixed shaft rotates to the leftmost side, the rack still moves rightwards, so that the rotating plate can drive the fixed shaft to rotate downwards, the fixed shaft drives the connecting rod to move rightwards, the connecting rod pulls the moving plate rightwards through the connecting shaft seat at the moment, the impact block leaves the right side surface of the hammer head, and when the fixed shaft rotates to the rightmost side, the rack still moves rightwards;
when the fixed shaft rotates for a circle, the rack continues to move rightwards, the fixed shaft rotates for a second circle, so that the impact block is driven to knock the hammer for the second time, and when the fixed shaft rotates for three circles, the penetrating shaft compresses the compression spring to the maximum value;
after the compression spring is compressed to the limit position, the force of the binding plate driving the magnetic block to move rightwards through magnetic force is smaller than the force applied to the through shaft cylindrical plate driven by the compression spring to elastically move, the bottom end of the compression rod is in contact with the right side face of the hammer handle, at the moment, the elasticity of the compression spring drives the through shaft to move leftwards, so that the rack is driven to move leftwards, the rack can drive the rotating plate to rotate clockwise, the connecting rod can drive the impact block to move leftwards for three times again, and the continuous knocking on the right end of the hammer head can be realized by pressing the compression rod once;
carry out six times at the tup and strike the excitation back to the terminal surface of stock, loosen the depression bar, reset spring's elasticity can drive the bottom of depression bar and rotate right this moment, makes the top of depression bar rotatory left, drives the laminating board through the fixed block and laminates with the magnetic block once more, waits to detect next time.
The invention has the following beneficial effects:
1. according to the invention, the top end of the rack is meshed with the bottom end of the gear ring, when the right end of the pressure lever is continuously and slowly pressed, the gear ring drives the fixed shaft to continuously rotate for three circles, and after the compression spring is compressed to the limit, the elasticity of the compression spring can drive the magnetic block to be separated from the attaching plate, so that the rack moves leftwards, and therefore, the fixed shaft can drive the impact block and the hammer head to knock for six times through the connecting rod by pressing the pressure lever once, and the labor intensity of operators is greatly reduced.
2. According to the invention, when the impact block impacts the hammer for six times, an operator only presses the bottom end of the pressure rod, and the left end of the hammer is convenient to control by the operator during multiple times of knocking, so that the contact position of the hammer and the end surface of the anchor rod cannot be changed when the left end of the hammer strikes the end surface of the anchor rod for six times, and thus, the excitation can act on the same point when the anchor rod is knocked, and the detection accuracy of the device is greatly improved.
3. According to the invention, the left end of the hammer head is set to be conical, so that the hammer head can be in point contact with the end surface of the anchor rod when the hammer head is in contact with the end surface of the anchor rod, and the hammer head does not need to be separated from the end surface of the anchor rod when the hammer head is knocked, so that the falling point can stably fall on the end surface of the anchor rod when the end surface of the anchor rod is knocked, the condition that a stress wave receiver is knocked when the end surface of the anchor rod is knocked is avoided, the damage of a detection device is avoided, and the service life of the device is prolonged.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of the explosive connection structure of the hammer handle according to the present invention;
FIG. 3 is a schematic view of the explosion-bonded structure of the return spring of the present invention;
FIG. 4 is a schematic view of a fixing member connecting structure according to the present invention;
FIG. 5 is a schematic view of a rack bar connection structure according to the present invention;
FIG. 6 is a schematic cross-sectional view of the fixing case according to the present invention;
FIG. 7 is a schematic view of an explosive connecting structure of a connecting rod according to the present invention;
FIG. 8 is a schematic view of a compression spring connection according to the present invention;
FIG. 9 is an enlarged view of the structure at A in FIG. 5 according to the present invention;
FIG. 10 is a schematic view of the structure of the moving direction of the moving plate driven by the rotating plate of the present invention;
FIG. 11 is a schematic view of the moving direction of the moving plate when the compression spring is compressed and pushes the rotating plate to rotate reversely according to the present invention.
In the figure: 1. a hammer handle; 2. a hammer head; 3. a fixing component; 301. a clamping block; 302. a fixing plate; 303. positioning the shaft; 304. a limiting plate; 305. a countersunk head bolt; 4. moving the plate; 5. an impact block; 6. a support base; 7. a rotating shaft; 8. a rotating plate; 9. a ring gear; 10. a fixed shaft; 11. connecting the shaft seat; 12. a connecting rod; 13. a rack; 14. penetrating the shaft; 15. a magnetic block; 16. a pressing assembly; 161. a hanger plate; 162. a fixing pin; 163. a pressure lever; 17. a return spring; 18. a fixed block; 19. laminating the plates; 20. a fixing box; 21. compressing the spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 11, in an embodiment of the present invention, an excitation hammer for detecting a stress wave of an anchor rod includes a hammer handle 1, a hammer head 2 is fixedly installed at a top end of the hammer handle 1, a fixing component 3 is installed at a right end of the hammer head 2, a moving plate 4 is movably connected to a middle portion of the fixing component 3, an impact block 5 is fixedly installed at a left side surface of the moving plate 4, a supporting base 6 is fixedly installed at a bottom end of a right side surface of the moving plate 4, a rotating shaft 7 is movably connected to a top portion of a rear end of the supporting base 6, a rotating plate 8 is fixedly installed at a front end of the rotating shaft 7, a gear ring 9 is fixedly installed at a middle portion of the rotating shaft 7, a fixing shaft 10 is fixedly installed at a right end of the front side surface of the rotating plate 8, a connecting shaft seat 11 is fixedly installed at a right side surface of the moving plate 4, a connecting shaft seat 11 and a connecting rod 12 are movably connected to a surface of the fixing shaft 10, when the connecting shaft seat 11 rotates upward, the connecting shaft seat 12 is fixed in length, the connecting shaft seat 11 can move a certain distance leftward, when the fixing shaft 10 rotates upward, the fixing shaft, the connecting shaft seat 11 passes through a rack 14, the fixing shaft passes through a left side, the fixing shaft 14, the fixing shaft passes through a cavity of the fixing shaft 2, and impacts a rack 14, so as to generate a magnetic excitation block 14, and the fixing shaft 14 penetrates the fixing shaft, and the rack 14.
Wherein, the right side fixed mounting of hammer handle 1 has pressing means 16, the right flank fixed mounting of hammer handle 1 has reset spring 17, the top fixed mounting of pressing means 16 has fixed block 18, the left flank fixed mounting of fixed block 18 has attaching plate 19, the right-hand member fixed mounting of support seat 6 has fixed box 20, the right flank fixed mounting of fixed box 20 inner chamber has compression spring 21, compression spring 21's elasticity can drive through axle 14 and move left, thereby drive rack 13 and move left, make rack 13 can drive rotor plate 8 clockwise rotation, thereby can realize that connecting rod 12 drives striking block 5 and move three times once more left, thereby realize pressing a depression bar 163 and realize continuously knocking the right-hand member of tup 2, loosen depression bar 163, reset spring 17's elasticity can drive the bottom of depression bar 163 and rotate right this moment, make the top of depression bar 163 rotate left, drive attaching plate 19 through fixed block 18 and magnetic block 15 laminating once more, wait for next time and detect, thereby realize not needing the manual device that resets of operating personnel, operating personnel's intensity of labour has been reduced.
Wherein, tup 2 is because cylinder and circular cone are constituteed, the diameter value of 2 cylinder ends of tup equals the diameter value of 2 cone ends of tup, the left side of 2 cylinder ends of tup fixed mounting at tup 2, when using, at first with the end face contaction of the left end of tup 2 and stock, because the left end of tup 2 sets up to coniform, when tup 2 and stock end face contaction, can make the terminal surface of tup 2 and stock be the point contact, its drop point can stably drop the terminal surface department at the stock when strikeing, avoided when strikeing, pounding the condition of stress wave receiver, avoid detection device to damage, the life of device has been increased.
Wherein, fixed subassembly 3 includes clamp splice 301, clamp splice 301 sets up the right side on hammer handle 1 top, the right flank fixed mounting of clamp splice 301 has fixed plate 302, the equal fixed mounting in four corners department of fixed plate 302 right flank has location axle 303, the right-hand member fixed mounting of location axle 303 has limiting plate 304, the bottom swing joint of fixed plate 302 has countersunk bolt 305, countersunk bolt 305's left end runs through fixed plate 302 in proper order, the right-hand member of clamp splice 301 and hammer handle 1, countersunk bolt 305's left end meshing is at the top of hammer handle 1 right-hand member, 4 swing joint of movable plate is on the surface of location axle 303, location axle 303 is fixed a position and is led to the motion of movable plate 4, thereby stability when having guaranteed the motion of movable plate 4, and fix clamp splice 301 and fixed plate 302 on the right side of hammer handle 1 through countersunk bolt 305, can separate hammer handle 1 and fixed subassembly 3 through dismantling countersunk bolt 305, the convenience is maintained and is deposited the device.
The pressing component 16 includes a hanging plate 161, the hanging plate 161 is fixedly mounted on the right side surface of the hammer handle 1, the right end of the hanging plate 161 is movably connected with a fixing pin 162, the surface of the fixing pin 162 is movably connected with a pressing rod 163, the fixing block 18 is fixedly mounted on the top end of the pressing rod 163, the right end of the return spring 17 is fixedly mounted on the left side surface of the bottom end of the pressing rod 163, the pressing rod 163 is pressed towards the hammer handle 1, the fixing pin 162 serves as the axis of rotation of the pressing rod 163 when the pressing rod 163 moves towards the left, the top end of the pressing rod 163 can drive the fixing block 18 and the attachment plate 19 to move towards the right, and when the attachment plate 19 moves towards the right, the magnetic force between the magnetic block 15 and the attachment plate 19 can be driven to drive the magnetic block 15 to move towards the right.
The top end of the rack 13 is meshed with the bottom end of the gear ring 9, a T-shaped sliding groove is formed in the bottom end of the rack 13, a T-shaped sliding rail is fixedly mounted on the front side face of the rear end of the supporting seat 6, the T-shaped sliding rail fixedly mounted on the front side face of the rear end of the supporting seat 6 is movably connected into the T-shaped sliding groove formed in the bottom end of the rack 13, the T-shaped sliding rail can position and guide the movement of the rack 13, the stability of the rack 13 in movement is guaranteed, when the magnetic block 15 moves rightwards, the rack 13 can be driven to move rightwards through the penetrating shaft 14, the top end of the rack 13 is meshed with the gear ring 9, the gear ring 9 can drive the rotating shaft 7 to rotate, the rotating plate 8 rotates anticlockwise, and the rotating plate 8 can drive the fixing shaft 10 fixedly mounted on the front side face of the rotating plate 8 to rotate anticlockwise.
Wherein, run through 14 swing joint of axle in the inner chamber of fixed box 20, the left end that runs through axle 14 comprises the cylinder board, the right-hand member that runs through axle 14 comprises the cylinder axle, magnetic block 15 is located the right side of fixed box 20, the cross sectional shape of magnetic block 15 is circular, run through axle 14 and connect rack 13 and magnetic block 15, when running through axle 14 motion, fixed box 20 can support the motion that runs through axle 14 to the stability of running through axle 14 motion has been guaranteed.
Wherein, the cross sectional shape of attaching plate 19 is arc, the centre of a circle of attaching plate 19 is in the same point with the centre of a circle of magnetic block 15, the left surface of attaching plate 19 and the right flank laminating of magnetic block 15, through the arc contact between attaching plate 19 and the magnetic block 15, the contact surface of increase attaching plate 19 and magnetic block 15 of very big degree connects, when attaching plate 19 rotates right, can slide downwards in the surface of magnetic block 15, thereby make the magnetic connection between attaching plate 19 and the magnetic block 15 inseparable stable more.
Wherein, compression spring 21 activity cup joints the surface at the 14 cylinder axle heads of through axle, and compression spring 21's left end fixed mounting is in the right flank of the 14 cylinder board end of through axle, and after compression spring 21 compressed extreme position, the power that laminating board 19 drove 15 right movements through magnetic force is less than the power that compression spring 21 elasticity drove and applys on the 14 cylinder board of through axle, and compression spring 21's elasticity can drive through axle 14 and remove left this moment.
The method comprises the following steps:
when the hammer is used, the left end of the hammer head 2 is firstly contacted with the end face of the anchor rod, then the pressing rod 163 is pressed towards the hammer handle 1, the top end of the pressing rod 163 drives the fixing block 18 and the attaching plate 19 to move rightwards, and when the attaching plate 19 moves rightwards, the magnetic block 15 can be driven to move rightwards through the magnetic force between the magnetic block 15 and the attaching plate 19;
when the magnetic block 15 moves rightwards, the through shaft 14 can drive the rack 13 to move rightwards, and the top end of the rack 13 is meshed with the gear ring 9, so that the gear ring 9 can drive the rotating shaft 7 to rotate, the rotating plate 8 rotates anticlockwise, and the rotating plate 8 can drive the fixed shaft 10 fixedly arranged on the front side surface of the rotating plate 8 to rotate anticlockwise when rotating;
when the fixed shaft 10 rotates upwards, the length of the connecting rod 12 is fixed, so that the connecting shaft seat 11 can be driven to move leftwards for a certain distance, after the fixed shaft 10 rotates upwards for one hundred eighty degrees, the connecting rod 12 is in a horizontal state, the connecting shaft seat 11 moves to the leftmost side, the connecting shaft seat 11 drives the movable plate 4 and the impact block 5 to move to the leftmost side, and the impact block 5 penetrates through the inner cavity of the fixed plate 302 and is in contact with the right end of the hammer head 2, so that the hammer head 2 is impacted to generate excitation, the excitation is transmitted to the end face of the anchor rod through the hammer head 2, and the anchor rod is excited;
when the fixed shaft 10 rotates to the leftmost side, the rack 13 still moves rightwards, so that the rotating plate 8 can drive the fixed shaft 10 to rotate downwards, the fixed shaft 10 drives the connecting rod 12 to move rightwards, the connecting rod 12 pulls the moving plate 4 rightwards through the connecting shaft seat 11, the impact block 5 leaves the right side surface of the hammer head 2, and when the fixed shaft 10 rotates to the rightmost side, the rack 13 still moves rightwards;
after the fixed shaft 10 rotates for a circle, the rack 13 continues to move rightwards, at the moment, the fixed shaft 10 rotates for a second circle, so that the impact block 5 is driven to knock the hammer 2 for the second time, and after the fixed shaft 10 rotates for three circles, the compression of the compression spring 21 by the penetrating shaft 14 reaches the maximum value;
after the compression spring 21 is compressed to the limit position, the force of the attachment plate 19 driving the magnetic block 15 to move rightwards through magnetic force is smaller than the force of the compression spring 21 elastically driving the magnetic block 15 to be applied to the cylindrical plate of the through shaft 14, the bottom end of the compression rod 163 is in contact with the right side face of the hammer handle 1, at the moment, the elasticity of the compression spring 21 drives the through shaft 14 to move leftwards, so that the rack 13 is driven to move leftwards, the rack 13 can drive the rotating plate 8 to rotate clockwise, the connecting rod 12 can drive the impact block 5 to move leftwards for three times again, and the purpose of continuously knocking the right end of the hammer head 2 by pressing the compression rod 163 once is achieved;
after the hammer 2 strikes and stimulates the end face of the anchor rod for six times, the pressing rod 163 is loosened, the bottom end of the pressing rod 163 is driven to rotate rightwards by the elasticity of the reset spring 17, the top end of the pressing rod 163 rotates leftwards, the attaching plate 19 is driven to be attached to the magnetic block 15 again through the fixing block 18, and the next detection is waited.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. An excitation hammer for detecting stress waves of an anchor rod comprises a hammer handle (1) and is characterized in that: the hammer comprises a hammer handle (1), a hammer head (2) is fixedly mounted at the top end of the hammer handle (1), a fixed assembly (3) is arranged at the right end of the hammer head (2), a movable plate (4) is movably connected to the middle of the fixed assembly (3), an impact block (5) is fixedly mounted on the left side face of the movable plate (4), a supporting seat (6) is fixedly mounted at the bottom end of the right side face of the movable plate (4), a rotating shaft (7) is movably connected to the top of the rear end of the supporting seat (6), a rotating plate (8) is fixedly mounted at the front end of the rotating shaft (7), a gear ring (9) is fixedly mounted in the middle of the rotating shaft (7), a fixed shaft (10) is fixedly mounted at the right end of the front side face of the rotating plate (8), a connecting shaft seat (11) is fixedly mounted on the right side face of the movable plate (4), a connecting rod (12) is movably connected to the surfaces of the connecting shaft seat (11) and the fixed shaft (10), a rack (13) is arranged at the rear side of the rotating plate (8), a through shaft (14) is fixedly mounted at the right side face of the through shaft (14), and a magnetic block (15) is fixedly mounted on the right side face of the through shaft (14); a pressing assembly (16) is fixedly mounted on the right side of the hammer handle (1), a reset spring (17) is fixedly mounted on the right side face of the hammer handle (1), a fixed block (18) is fixedly mounted at the top end of the pressing assembly (16), a binding plate (19) is fixedly mounted on the left side face of the fixed block (18), a fixed box (20) is fixedly mounted at the right end of the supporting seat (6), and a compression spring (21) is fixedly mounted on the right side face of the inner cavity of the fixed box (20);
the fixed shaft rotates upwards to drive the connecting shaft seat to move leftwards for a certain distance, the connecting rod is in a horizontal state after the fixed shaft rotates upwards for one hundred eighty degrees, the connecting shaft seat moves to the leftmost side at the moment, the connecting shaft seat drives the movable plate and the impact block to move to the leftmost side, the impact block penetrates through the inner cavity of the fixed plate and contacts with the right end of the hammer head to impact the hammer head to generate excitation, and the excitation is transmitted to the end face of the anchor rod through the hammer head to generate excitation on the anchor rod;
after the fixed shaft rotates for a circle, the rack continues to move rightwards, the fixed shaft rotates for the second circle to drive the impact block to knock the hammer for the second time, and after the fixed shaft rotates for three circles, the penetrating shaft compresses the compression spring to the maximum value;
compression spring compresses to extreme position after, the laminating board drives the power that the magnetic block moved to the right through magnetic force and is less than compression spring elastic drive and exerts the power on running through the axle cylinder board, the bottom of depression bar and the right flank contact of hammer handle, compression spring's elasticity can drive and run through the axle and remove left this moment, thereby drive the rack and move left, make the rack can drive the rotor plate clockwise rotation, thereby can realize that the connecting rod drives striking piece cubic of once more moving left, thereby realize pressing the right-hand member that the depression bar realization was to the tup and continuously strike.
2. An exciter hammer for detection of bolt stress waves according to claim 1, characterized in that: the hammer head (2) is composed of a cylinder and a cone, the diameter value of the cylinder end of the hammer head (2) is equal to that of the cone end of the hammer head (2), and the cone end of the hammer head (2) is fixedly installed on the left side of the cylinder end of the hammer head (2).
3. An excited hammer for bolt stress wave detection as claimed in claim 1, wherein: fixed subassembly (3) include clamp splice (301), clamp splice (301) set up the right side on hammer handle (1) top, the right side fixed mounting of clamp splice (301) has fixed plate (302), the equal fixed mounting in four corners department of fixed plate (302) right flank has location axle (303), the right-hand member fixed mounting of location axle (303) has limiting plate (304), the bottom swing joint of fixed plate (302) has countersunk head bolt (305), the right-hand member of fixed plate (302), clamp splice (301) and hammer handle (1) is run through in proper order to the left end of countersunk head bolt (305), the left end meshing of countersunk head bolt (305) is at the top of hammer handle (1) right-hand member, movable plate (4) swing joint is on the surface of location axle (303).
4. An excited hammer for bolt stress wave detection as claimed in claim 1, wherein: the pressing assembly (16) comprises a hanging plate (161), the hanging plate (161) is fixedly installed on the right side face of the hammer handle (1), the right end of the hanging plate (161) is movably connected with a fixing pin (162), the surface of the fixing pin (162) is movably connected with a pressing rod (163), the fixing block (18) is fixedly installed on the top end of the pressing rod (163), and the right end of the reset spring (17) is fixedly installed on the left side face of the bottom end of the pressing rod (163).
5. An excited hammer for bolt stress wave detection as claimed in claim 1, wherein: the top end of the rack (13) is meshed with the bottom end of the gear ring (9), a T-shaped sliding groove is formed in the bottom end of the rack (13), a T-shaped sliding rail is fixedly mounted on the front side face of the rear end of the supporting seat (6), and the T-shaped sliding rail fixedly mounted on the front side face of the rear end of the supporting seat (6) is movably connected into the T-shaped sliding groove formed in the bottom end of the rack (13).
6. An excited hammer for bolt stress wave detection as claimed in claim 1, wherein: the magnetic block is characterized in that the penetrating shaft (14) is movably connected in an inner cavity of the fixed box (20), the left end of the penetrating shaft (14) is composed of a cylindrical plate, the right end of the penetrating shaft (14) is composed of a cylindrical shaft, the magnetic block (15) is located on the right side of the fixed box (20), and the cross section of the magnetic block (15) is circular.
7. An excited hammer for bolt stress wave detection as claimed in claim 1, wherein: the cross section of the attaching plate (19) is arc-shaped, the circle center of the attaching plate (19) is located at the same point as that of the magnetic block (15), and the left side face of the attaching plate (19) is attached to the right side face of the magnetic block (15).
8. An excited hammer for bolt stress wave detection as claimed in claim 1, wherein: the compression spring (21) is movably sleeved on the surface of the cylindrical shaft end of the through shaft (14), and the left end of the compression spring (21) is fixedly installed on the right side face of the cylindrical plate end of the through shaft (14).
9. A method of using an excited hammer for bolt stress wave detection as claimed in any one of claims 1 to 8, wherein: the method comprises the following steps:
when the hammer is used, the left end of the hammer head (2) is firstly contacted with the end face of the anchor rod, then the pressure lever (163) is pressed towards the hammer handle (1), so that the top end of the pressure lever (163) drives the fixing block (18) and the attachment plate (19) to move rightwards, and when the attachment plate (19) moves rightwards, the magnetic block (15) can be driven to move rightwards through the magnetic force between the magnetic block (15) and the attachment plate (19);
when the magnetic block (15) moves rightwards, the through shaft (14) can drive the rack (13) to move rightwards, the top end of the rack (13) is meshed with the gear ring (9), the gear ring (9) can drive the rotating shaft (7) to rotate, the rotating plate (8) can rotate anticlockwise, and the rotating plate (8) can drive the fixed shaft (10) fixedly arranged on the front side surface of the rotating plate (8) to rotate anticlockwise when rotating;
when the fixed shaft (10) rotates upwards, the length of the connecting rod (12) is fixed, the connecting shaft seat (11) can be driven to move leftwards for a certain distance, after the fixed shaft (10) rotates upwards for one hundred eighty degrees, the connecting rod (12) is in a horizontal state, the connecting shaft seat (11) moves to the leftmost side, the connecting shaft seat (11) drives the movable plate (4) and the impact block (5) to move to the leftmost side, and the impact block (5) penetrates through the inner cavity of the fixed plate (302) and is in contact with the right end of the hammer head (2), so that the hammer head (2) is impacted to generate excitation, the excitation is transmitted to the end face of the anchor rod through the hammer head (2), and the anchor rod is excited;
when the fixed shaft (10) rotates to the leftmost side, the rack (13) still moves rightwards, so that the rotating plate (8) can drive the fixed shaft (10) to rotate downwards, the fixed shaft (10) drives the connecting rod (12) to move rightwards, the connecting rod (12) pulls the moving plate (4) rightwards through the connecting shaft seat (11), the impact block (5) is separated from the right side surface of the hammer head (2), and when the fixed shaft (10) rotates to the rightmost side, the rack (13) still moves rightwards;
after the fixed shaft (10) rotates for a circle, the rack (13) continues to move rightwards, the fixed shaft (10) rotates for the second circle at the moment, so that the impact block (5) is driven to knock the hammer (2) for the second time, and after the fixed shaft (10) rotates for three circles, the penetrating shaft (14) compresses the compression spring (21) to the maximum value;
after the compression spring (21) is compressed to the limit position, the force of the magnetic block (15) driven by the attaching plate (19) through magnetic force to move rightwards is smaller than the force applied to the cylindrical plate of the through shaft (14) driven by the compression spring (21) elastically, the bottom end of the compression rod (163) is in contact with the right side face of the hammer handle (1), at the moment, the through shaft (14) is driven to move leftwards by the elasticity of the compression spring (21), so that the rack (13) is driven to move leftwards, the rack (13) can drive the rotating plate (8) to rotate clockwise, the impact block (5) driven by the connecting rod (12) can move leftwards again for three times, and the continuous knocking on the right end of the hammer head (2) can be realized by pressing the compression rod (163 once;
after the hammer head (2) strikes and stimulates the end face of the anchor rod for six times, the pressing rod (163) is loosened, the bottom end of the pressing rod (163) is driven to rotate rightwards by the elasticity of the reset spring (17), the top end of the pressing rod (163) rotates leftwards, the attaching plate (19) is driven to attach to the magnetic block (15) again through the fixing block (18), and the next detection is waited.
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| CN202110796065.1A CN113686954B (en) | 2021-07-14 | 2021-07-14 | Small exciting hammer for detecting stress wave of anchor rod and using method of small exciting hammer |
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| CN202110796065.1A CN113686954B (en) | 2021-07-14 | 2021-07-14 | Small exciting hammer for detecting stress wave of anchor rod and using method of small exciting hammer |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190808930A (en) * | 1908-04-24 | 1909-04-26 | Joseph Knight | Improvements in Electrically Driven Percussive Tools, specially applicable for Rock Drilling or Stoping. |
| FR1567794A (en) * | 1967-08-18 | 1969-04-08 | ||
| JP2009133163A (en) * | 2007-11-30 | 2009-06-18 | Nitto Seiko Co Ltd | Percussive penetration testing apparatus |
| JP2011242340A (en) * | 2010-05-20 | 2011-12-01 | Japan Atomic Energy Agency | Intra-hole excitation source |
| CN202305477U (en) * | 2011-08-08 | 2012-07-04 | 杨学春 | Non-destructive detection device for wood stress waves |
| CN105115689A (en) * | 2015-09-23 | 2015-12-02 | 中国航空工业集团公司沈阳飞机设计研究所 | Pulse excitation apparatus |
| CN204882020U (en) * | 2015-06-23 | 2015-12-16 | 哈尔滨工程大学 | Mode test is with automatic device that strikes of variable wave form |
| CN106855539A (en) * | 2017-01-20 | 2017-06-16 | 桂林电子科技大学 | A kind of anchor rod nondestructive testing method and equipment based on stress wave |
| CN109708798A (en) * | 2019-02-27 | 2019-05-03 | 沙洲职业工学院 | A kind of stress wave excitation device for side slope anchor pole loading test |
| WO2019127072A1 (en) * | 2017-12-25 | 2019-07-04 | 东北大学 | Full-automatic modal impact hammer for experimental modal test and method |
| CN209979111U (en) * | 2019-07-08 | 2020-01-21 | 长春理工大学 | Test device for exploring nondestructive testing residual stress |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107008526A (en) * | 2017-06-12 | 2017-08-04 | 六安市我罗生农业科技有限公司 | A kind of herbal pharmaceutical device of quickly pounding medicine in a mortar |
| CN107174288A (en) * | 2017-06-20 | 2017-09-19 | 姚旺东 | A kind of neurosurgery is with using percussion hammer |
| CN107441645A (en) * | 2017-09-04 | 2017-12-08 | 黄芳笔 | One kind resets convenient efficient window breaker |
| CN108445087B (en) * | 2018-02-06 | 2020-06-30 | 浙江理工大学 | Low-strain fixed-point constant-energy hammering excitation device and excitation method for elastic wave measurement |
| CN210775338U (en) * | 2019-09-17 | 2020-06-16 | 代生田 | Locomotive detection hammer |
| CN110744003B (en) * | 2019-10-31 | 2021-06-18 | 肖亚凡 | Be used for forged middle part hammering device of luoyang shovel |
| CN111388302A (en) * | 2020-03-25 | 2020-07-10 | 吴爱平 | Traditional chinese medical science nursing is with route reason unblock striking rehabilitation ware |
-
2021
- 2021-07-14 CN CN202110796065.1A patent/CN113686954B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190808930A (en) * | 1908-04-24 | 1909-04-26 | Joseph Knight | Improvements in Electrically Driven Percussive Tools, specially applicable for Rock Drilling or Stoping. |
| FR1567794A (en) * | 1967-08-18 | 1969-04-08 | ||
| JP2009133163A (en) * | 2007-11-30 | 2009-06-18 | Nitto Seiko Co Ltd | Percussive penetration testing apparatus |
| JP2011242340A (en) * | 2010-05-20 | 2011-12-01 | Japan Atomic Energy Agency | Intra-hole excitation source |
| CN202305477U (en) * | 2011-08-08 | 2012-07-04 | 杨学春 | Non-destructive detection device for wood stress waves |
| CN204882020U (en) * | 2015-06-23 | 2015-12-16 | 哈尔滨工程大学 | Mode test is with automatic device that strikes of variable wave form |
| CN105115689A (en) * | 2015-09-23 | 2015-12-02 | 中国航空工业集团公司沈阳飞机设计研究所 | Pulse excitation apparatus |
| CN106855539A (en) * | 2017-01-20 | 2017-06-16 | 桂林电子科技大学 | A kind of anchor rod nondestructive testing method and equipment based on stress wave |
| WO2019127072A1 (en) * | 2017-12-25 | 2019-07-04 | 东北大学 | Full-automatic modal impact hammer for experimental modal test and method |
| CN109708798A (en) * | 2019-02-27 | 2019-05-03 | 沙洲职业工学院 | A kind of stress wave excitation device for side slope anchor pole loading test |
| CN209979111U (en) * | 2019-07-08 | 2020-01-21 | 长春理工大学 | Test device for exploring nondestructive testing residual stress |
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|---|---|
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