CN212301435U - Vibration transmission mechanism for generating shear waves - Google Patents
Vibration transmission mechanism for generating shear waves Download PDFInfo
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- CN212301435U CN212301435U CN202021166060.8U CN202021166060U CN212301435U CN 212301435 U CN212301435 U CN 212301435U CN 202021166060 U CN202021166060 U CN 202021166060U CN 212301435 U CN212301435 U CN 212301435U
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- outer sleeve
- shear waves
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Abstract
The utility model discloses a produce shear wave with passing mechanism that shakes, including base, altitude mixture control part and the biography part that shakes, the biography part that shakes includes interior sleeve pipe of outer tube and transmission, the length of the interior sleeve pipe of transmission is greater than the length of outer tube, the one end that the outer tube stretched out in the transmission is provided with the initiative and hits the head of beating, the other end that the outer tube stretched out in the transmission is provided with and hits the head of beating passively, the outer cover of the interior sleeve pipe of transmission is equipped with first annular dog and second annular dog, the lateral wall of first annular dog and second annular dog and the inside wall laminating of outer tube, first annular dog and second annular dog are located the outer tube, be provided with the clearance between first annular dog and the second annular dog. The utility model discloses simple structure to make shear wave's excitation direction level, improve the accuracy that shear wave produced, thereby improve shear wave's wave speed measuring accuracy and efficiency.
Description
Technical Field
The utility model belongs to the technical field of geotechnical engineering reconnaissance, especially, relate to a produce shear wave with biography mechanism that shakes.
Background
The national economic construction can not be separated from the construction of various building projects, and the earthquake-resistant design is very necessary work when the construction of the building projects is carried out. The field wave velocity test is widely applied to geotechnical engineering investigation. Through the field wave velocity test, the type and the field category of the field soil can be divided, the excellent period of the field can be calculated, and a basis is provided for the earthquake-resistant design of the building engineering.
The existing field wave velocity testing method mostly adopts a single-hole method, wherein the single-hole method is characterized in that vibration is excited on the ground, a detector is received in a vertical drilling hole, and detection is carried out layer by layer from top to bottom (or from bottom to top) according to stratum division. A vibration source is generated by a board hitting method in a single-hole method, but the vibration exciting direction of a board hit by a heavy hammer in the board hitting method has deviation, and a certain error exists in a shear wave velocity test. Therefore, at present, a vibration transmission mechanism for generating shear waves is lacked, so that the excitation direction of the shear waves is horizontal, the accuracy of shear wave generation is improved, and the wave velocity testing precision and efficiency of the shear waves are improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed against, provide a produce shear wave with biography mechanism that shakes, its simple structure, reasonable in design to make shear wave's excitation direction level, improve the accuracy that shear wave produced, thereby improve shear wave's wave speed measuring accuracy and efficiency.
In order to solve the technical problem, the utility model discloses a technical scheme is: a vibration transmission mechanism for generating shear waves is characterized in that: including base, altitude mixture control part and the setting of setting on the base the last biography of altitude mixture control part that shakes, the biography is shaken the part and is included outer tube and cover and establish the interior sleeve pipe of transmission in the outer tube, the interior sheathed tube length of transmission is greater than the length of outer tube, the one end that stretches out the outer tube in the transmission is provided with the initiative and hits the head of beating, the other end that stretches out the outer tube in the transmission is provided with passively hits the head of beating, the outer cover of the interior sheathed tube outer circumference of transmission is equipped with first annular dog and second annular dog, the lateral wall of first annular dog and second annular dog and the inside wall laminating of outer tube, be provided with the clearance between first annular.
The vibration transmission mechanism for generating shear waves is characterized in that: the height adjusting part comprises a screw rod and a motor, the motor is in transmission connection with the screw rod through a chain transmission part, a sleeve is arranged on the outer sleeve, the top of the screw rod extends into the sleeve, and the bottom of the screw rod is installed in the base through a bearing.
The vibration transmission mechanism for generating shear waves is characterized in that: the top of the outer sleeve is provided with a bubble level meter which is a cylinder.
The vibration transmission mechanism for generating shear waves is characterized in that: the outer sleeve and the transmission inner sleeve are stainless steel sleeves, and lubricating agents are arranged between the outer side wall of the first annular stop block and the inner side wall of the outer sleeve and between the outer side wall of the second annular stop block and the inner side wall of the outer sleeve.
The vibration transmission mechanism for generating shear waves is characterized in that: the active beating head and the passive beating head are both rubber beating heads.
The vibration transmission mechanism for generating shear waves is characterized in that: and a handle is arranged at one end of the transmission inner sleeve close to the active striking head.
The vibration transmission mechanism for generating shear waves is characterized in that: the bottom of the base is provided with a fixed rod, the fixed rod is obliquely arranged, and an included angle between the fixed rod and the bottom of the base, which is close to the passive striking head, is an acute angle.
The vibration transmission mechanism for generating shear waves is characterized in that: the outer sleeve comprises an outer sleeve body, and a first cover plate and a second cover plate which are arranged at two ends of the outer sleeve body, wherein a first through hole for the other end of the outer sleeve to pass through is formed in the first cover plate, a second through hole for one end of the outer sleeve to pass through is formed in the second cover plate, and the diameter of the first through hole and the diameter of the second through hole are smaller than the inner diameter of the outer sleeve body.
Compared with the prior art, the utility model has the following advantage:
1. simple structure, reasonable in design and simple and convenient, the input cost is lower in the installation.
2. The utility model is provided with a height adjusting part, which is used for realizing the height adjustment of the transmission inner sleeve and the outer sleeve and effectively adapting to the test requirements of different fields; in addition, the device is used for adjusting the horizontal state of the transmission inner sleeve and the transmission outer sleeve so as to enable the excitation direction of the shear wave to be horizontal, and the accuracy of shear wave generation is improved, so that the wave speed testing precision and efficiency of the shear wave are improved.
3. The utility model discloses sleeve pipe in setting up the biography part of shaking including outer tube and transmission, the one end that the sleeve pipe stretches out the outer tube in the transmission is provided with the initiative and hits the head, the other end that the sleeve pipe stretches out the outer tube in the transmission is provided with passively hits the head, hits the initiative through the weight and hits the head, hits the head passively and hits the tip that hits the setting at subaerial plank to produce the shear wave.
4. The utility model is provided with the first annular stop dog, so that when the hammer is used for beating the active beating head, the first annular stop dog is stopped by the first cover plate of the outer sleeve, thereby realizing the limit of the transmission inner sleeve and avoiding the transmission inner sleeve from sliding out of the outer sleeve; set up second annular dog, hit initiative for the weight and hit the head and accomplish the back, block second annular dog through the second apron of outer tube, realized the interior sheathed tube of transmission spacing that resets, avoid the interior sleeve pipe of transmission to slide out the outer tube to be convenient for the weight is repeatedly hit and is beaten initiative and hit the head and produce the shear wave.
To sum up, the utility model discloses simple structure, reasonable in design to make shear wave's excitation direction level, improve the accuracy that shear wave produced, thereby improve shear wave's wave speed measuring accuracy and efficiency.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the transmission component of the present invention.
Fig. 3 is a schematic view of a connection relationship between the first motor driving module and the first motor according to the present invention.
Fig. 4 is a schematic diagram of a connection relationship between the second motor driving module and the second motor according to the present invention.
Description of reference numerals:
1-passive striking head; 2-outer sleeve; 2-1-outer cannula body;
2-2 — a first cover plate; 2-3-a second cover plate; 3-bubble level meter;
4, driving the inner sleeve; 5, an active striking head; 6-1-a first lead screw;
6-2-a second screw rod; 7, fixing a rod; 8, a base;
9-a handle; 10-1 — a first annular stop; 10-2 — a second annular stop;
11-1 — a first sleeve; 11-2 — a second sleeve; 12-1 — a first driven gear;
12-2 — a second driven gear; 13-1 — a first chain; 13-2 — a second chain;
14-1 — a first drive gear; 14-2 — a second drive gear; 15-1 — a first electric machine;
15-2 — second motor.
Detailed Description
As shown in fig. 1 and 2, the vibration transmission mechanism for generating shear waves comprises a base 8, a height adjusting component arranged on the base 8 and a vibration transmission component arranged on the height adjusting component, the vibration transmission part comprises an outer sleeve 2 and a transmission inner sleeve 4 sleeved in the outer sleeve 2, the length of the transmission inner sleeve 4 is greater than that of the outer sleeve 2, one end of the transmission inner sleeve 4 extending out of the outer sleeve 2 is provided with an active striking head 5, the other end of the transmission inner sleeve 4 extending out of the outer sleeve 2 is provided with a passive striking head 1, a first annular stop block 10-1 and a second annular stop block 10-2 are sleeved on the outer circumference of the transmission inner sleeve 4, the outer side walls of the first annular stop block 10-1 and the second annular stop block 10-2 are jointed with the inner side wall of the outer sleeve 2, a gap is arranged between the first annular stop block 10-1 and the second annular stop block 10-2.
In this embodiment, the height adjustment part includes lead screw and motor, the motor pass through chain drive part with the lead screw transmission is connected, be provided with the sleeve on the outer tube 2, the top of lead screw stretches into the sleeve, the bottom of lead screw is passed through the bearing and is installed in base 8.
In this embodiment, the top of the outer sleeve 2 is provided with a bubble level meter 3, and the bubble level meter 3 is a cylinder.
In this embodiment, the outer sleeve 2 and the inner transmission sleeve 4 are both stainless steel sleeves, and lubricants are disposed between the outer side wall of the first annular stopper 10-1 and the inner side wall of the outer sleeve 2, and between the outer side wall of the second annular stopper 10-2 and the inner side wall of the outer sleeve 2.
In this embodiment, the active striking head 5 and the passive striking head 1 are both rubber striking heads.
In this embodiment, a handle 9 is disposed at one end of the transmission inner sleeve 4 close to the driving striking head 5.
In this embodiment, the bottom of the base 8 is provided with a fixing rod 7, the fixing rod 7 is obliquely arranged, and an included angle between the fixing rod 7 and the bottom of the base 8 close to the passive striking head 1 is an acute angle.
In this embodiment, the outer sleeve 2 includes an outer sleeve body 2-1, and a first cover plate 2-2 and a second cover plate 2-3 disposed at two ends of the outer sleeve body 2-1, the first cover plate 2-2 is provided with a first through hole for passing the other end of the outer sleeve 2, the second cover plate 2-3 is provided with a second through hole for passing one end of the outer sleeve 2, and the diameters of the first through hole and the second through hole are smaller than the inner diameter of the outer sleeve body 2-1.
In the embodiment, the height adjusting part is arranged for adjusting the heights of the transmission inner sleeve 4 and the transmission outer sleeve 2, so that the test requirements of different places are effectively met; in addition, the driving inner sleeve 4 and the driving outer sleeve are adjusted to be in a horizontal state, so that the excitation direction of the shear wave is horizontal, the accuracy of shear wave generation is improved, and the wave speed testing precision and efficiency of the shear wave are improved.
In this embodiment, set up and pass the part of shaking and include sleeve pipe 4 in 2 and the transmission of outer tube, the one end that sleeve pipe 4 stretches out outer tube 2 in the transmission is provided with the initiative and hits the head 5, the other end that sleeve pipe 4 stretches out outer tube 2 in the transmission is provided with passively hits the head 1, hits the initiative through the weight and hits the head 5, hits the tip that the plank was hit to the passively hitting head 1 to produce the shear wave.
In this embodiment, the first annular stopper 10-1 is arranged to stop the first annular stopper 10-1 through the first cover plate 2-2 of the outer sleeve 2 when the hammer strikes the active striking head 5, so that the limit of the transmission inner sleeve is realized, and the transmission inner sleeve is prevented from slipping out of the outer sleeve; the second annular stop block 10-2 is arranged for the purpose that the hammer strikes the active striking head 5, the second annular stop block 10-2 is stopped through the second cover plate 2-3 of the outer sleeve 2, the reset limit of the transmission inner sleeve is realized, the transmission inner sleeve is prevented from sliding out of the outer sleeve, and therefore the hammer can conveniently strike the active striking head 5 repeatedly to generate shear waves.
In this embodiment, the number of the height adjusting components is two, the two height adjusting components are respectively a first height adjusting component and a second height adjusting component, the first height adjusting component includes a first lead screw 6-1 and a first motor 15-1, the first motor 15-1 is in transmission connection with the first lead screw 6-1 through a first chain transmission component, and the first chain transmission component includes a first driving gear 14-1 arranged on an output shaft of the first motor 15-1, a first driven gear 12-1 arranged on the first lead screw 6-1, and a first chain 13-1 in transmission connection with the first driving gear 14-1 and the first driven gear 12-1.
In this embodiment, the second height adjusting component includes a second screw 6-2 and a second motor 15-2, the second motor 15-2 is in transmission connection with the second screw 6-2 through a second chain transmission component, and the second chain transmission component includes a second driving gear 14-2 arranged on an output shaft of the second motor 15-2, a second driven gear 12-2 arranged on the second screw 6-2, and a second chain 13-2 in transmission connection with the second driving gear 14-2 and the second driven gear 12-2.
In this embodiment, the number of the sleeves is two, the two sleeves are respectively a first sleeve 11-1 and a second sleeve 11-2, the top end of the first lead screw 6-1 extends into the first sleeve 11-1, the top end of the second lead screw 6-2 extends into the second sleeve 11-2, the first lead screw 6-1 is in threaded fit with the first sleeve 11-1, and the second lead screw 6-2 is in threaded fit with the second sleeve 11-2.
In this embodiment, the outer sleeve 2 is provided with a first sleeve 11-1 and a second sleeve 11-2, so that the top end of the first lead screw 6-1 extends into the first sleeve 11-1, and the top end of the second lead screw 6-2 extends into the second sleeve 11-2, thereby realizing the connection between the height adjusting part and the outer sleeve 2; in addition, a first sleeve 11-1 is in threaded connection with a first screw rod 6-1, a second sleeve 11-2 is in threaded connection with a second screw rod 6-2, a first motor 15-1 drives the first screw rod 6-1 to rotate through a first transmission part, the first screw rod 6-1 rotates to drive the first sleeve 11-1 to move up and down along the first screw rod 6-1, so that the height adjustment of the first sleeve 11-1 is realized, meanwhile, the second motor 15-2 drives the second screw rod 6-2 to rotate through the second transmission part, the second screw rod 6-2 rotates to drive the second sleeve 11-2 to move up and down along the second screw rod 6-2, so that the height adjustment of the second sleeve 11-2 is realized, therefore, the height of the transmission inner sleeve 4 and the height of the transmission outer sleeve 2 are adjusted, and the test requirements of different fields are effectively met; secondly, the first motor 15-1 or the second motor 15-2 can also realize fine adjustment of the height of the first sleeve 11-1 and the second sleeve 11-2 so as to enable the bubble level meter 3 to be positioned at a central position, thereby ensuring that the transmission inner sleeve 4 and the transmission outer sleeve 2 are in a horizontal state.
In this embodiment, the first motor 15-1 rotates to drive the first driving gear 14-1 to rotate, the first driving gear 14-1 rotates to drive the first driven gear 12-1 to rotate through the first chain 13-1, and the first driven gear 12-1 rotates to drive the first lead screw 6-1 to rotate; the second motor 15-2 rotates to drive the second driving gear 14-2 to rotate, the second driving gear 14-2 rotates to drive the second driven gear 12-2 to rotate through the second chain 13-2, and the second driven gear 12-2 rotates to drive the second screw rod 6-2 to rotate.
In this embodiment, it should be noted that, in the process of rotating the first lead screw 6-1 and the second lead screw 6-2, the top of the first lead screw 6-1 is lower than the top of the first sleeve 11-1, and the top of the second lead screw 6-2 is lower than the top of the second sleeve 11-2.
In this embodiment, it should be noted that the first lead screw 6-1 is in threaded fit with the first sleeve 11-1, and the second lead screw 6-2 is in threaded fit with the second sleeve 11-2, so that the rotation of the first lead screw 6-1 and the second lead screw 6-2 is transmitted to the linear lifting of the first sleeve 11-1 and the second sleeve 11-2.
In this embodiment, both the first motor 15-1 and the second motor 15-2 can be referred to as 42BYG450-34 stepper motors.
In this embodiment, during actual use, a control box is arranged on the bottom plate 8, an electronic circuit board is arranged in the control box, and a single chip microcomputer is integrated on the electronic circuit board.
In this embodiment, the singlechip can refer to STM32F103ZET6 singlechip, the output termination of singlechip has first motor drive module and second motor drive module, first motor drive module and first motor 15-1 are connected, second motor drive module and second motor 15-2 are connected.
In this embodiment, the single chip microcomputer drives the first motor 15-1 to rotate through the first motor driving module, and the single chip microcomputer drives the second motor 15-2 to rotate through the second motor driving module.
As shown in fig. 3, in this embodiment, the first motor 15-1 is a stepping motor M1, the first motor driving module includes a chip U20 of an ULN2003A, pin 1 to pin 4 of the chip U20 are respectively connected to pins of PC6 to PC9 of a single chip, pin 16 of the chip U20 is connected to one end of the first winding of the stepping motor M1, pin 13 of the chip U20 is connected to the other end of the first winding of the stepping motor M1, pin 14 of the chip U20 is connected to one end of the second winding of the stepping motor M1, pin 15 of the chip U20 is connected to the other end of the second winding of the stepping motor M1, pin 9 of the chip U20 is connected to a 5V power output terminal, and both the common end of the first winding of the stepping motor M1 and the common end of the second winding of the stepping motor M1 are connected to a 12V power output terminal.
As shown in fig. 4, in this embodiment, the second motor 15-2 is a stepping motor M2, the second motor driving module includes a chip U21 of an ULN2003A, a 1 st pin to a 4 th pin of the chip U21 are respectively connected to PB12 to PB15 pins of the single chip microcomputer, a 16 th pin of the chip U21 is connected to one end of the first winding of the stepping motor M2, a 13 th pin of the chip U21 is connected to the other end of the first winding of the stepping motor M2, a 14 th pin of the chip U21 is connected to one end of the second winding of the stepping motor M2, a 15 th pin of the chip U21 is connected to the other end of the second winding of the stepping motor M2, a 9 th pin of the chip U21 is connected to a 5V power output terminal, and both the common end of the first winding of the stepping motor M2 and the common end of the second winding of the stepping motor M2 are connected to a 12V power output terminal.
In this embodiment, a handle 9 is disposed at one end of the transmission inner sleeve 4 close to the driving striking head 5, so that the handle 9 can be pulled manually, so that the transmission inner sleeve 4 is reset after being struck.
In this embodiment, the fixing rod 7 is provided to be inserted into a place where the base 8 is located, thereby fixing the base 8 and the mechanism.
In this embodiment, it should be noted that, in practical use, a weight block may be additionally disposed on the base 8 to fix the base 8.
In this embodiment, the active striking head 5 and the passive striking head 1 are both rubber striking heads, so that the active striking head 5 and the passive striking head 1 are prevented from being damaged by repeated striking of the active striking head 5, and the service life is prolonged.
To sum up, the utility model discloses simple structure, reasonable in design to make shear wave's excitation direction level, improve the accuracy that shear wave produced, thereby improve shear wave's wave speed measuring accuracy and efficiency.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (8)
1. A vibration transmission mechanism for generating shear waves is characterized in that: comprises a base (8), a height adjusting part arranged on the base (8) and a vibration transmission part arranged on the height adjusting part, wherein the vibration transmission part comprises an outer sleeve (2) and a transmission inner sleeve (4) sleeved in the outer sleeve (2), the length of the transmission inner sleeve (4) is greater than that of the outer sleeve (2), one end of the transmission inner sleeve (4) extending out of the outer sleeve (2) is provided with an active striking head (5), the other end of the transmission inner sleeve (4) extending out of the outer sleeve (2) is provided with a passive striking head (1), the outer circumference of the transmission inner sleeve (4) is sleeved with a first annular stop block (10-1) and a second annular stop block (10-2), the outer side wall of the first annular stop block (10-1) and the outer side wall of the second annular stop block (10-2) are attached to the inner side wall of the outer sleeve (, a gap is arranged between the first annular stop block (10-1) and the second annular stop block (10-2).
2. A vibration transmitting mechanism for generating shear waves according to claim 1, wherein: the height adjusting part comprises a screw rod and a motor, the motor is in transmission connection with the screw rod through a chain transmission part, a sleeve is arranged on the outer sleeve (2), the top of the screw rod extends into the sleeve, and the bottom of the screw rod is installed in the base (8) through a bearing.
3. A vibration transmitting mechanism for generating shear waves according to claim 1, wherein: the top of the outer sleeve (2) is provided with a bubble level meter (3), and the bubble level meter (3) is a cylinder.
4. A vibration transmitting mechanism for generating shear waves according to claim 1, wherein: the outer sleeve (2) and the transmission inner sleeve (4) are both stainless steel sleeves, and lubricating agents are arranged between the outer side wall of the first annular stop block (10-1) and the inner side wall of the outer sleeve (2) and between the outer side wall of the second annular stop block (10-2) and the inner side wall of the outer sleeve (2).
5. A vibration transmitting mechanism for generating shear waves according to claim 1, wherein: the active striking head (5) and the passive striking head (1) are both rubber striking heads.
6. A vibration transmitting mechanism for generating shear waves according to claim 1, wherein: and a handle (9) is arranged at one end of the transmission inner sleeve (4) close to the active striking head (5).
7. A vibration transmitting mechanism for generating shear waves according to claim 1, wherein: the bottom of the base (8) is provided with a fixing rod (7), and the fixing rod (7) is obliquely arranged.
8. A vibration transmitting mechanism for generating shear waves according to claim 1, wherein: the outer sleeve (2) comprises an outer sleeve body (2-1), and a first cover plate (2-2) and a second cover plate (2-3) which are arranged at two ends of the outer sleeve body (2-1), wherein a first through hole for allowing the other end of the outer sleeve (2) to pass through is formed in the first cover plate (2-2), a second through hole for allowing one end of the outer sleeve (2) to pass through is formed in the second cover plate (2-3), and the diameters of the first through hole and the second through hole are smaller than the inner diameter of the outer sleeve body (2-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021166060.8U CN212301435U (en) | 2020-06-22 | 2020-06-22 | Vibration transmission mechanism for generating shear waves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021166060.8U CN212301435U (en) | 2020-06-22 | 2020-06-22 | Vibration transmission mechanism for generating shear waves |
Publications (1)
| Publication Number | Publication Date |
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| CN212301435U true CN212301435U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021166060.8U Active CN212301435U (en) | 2020-06-22 | 2020-06-22 | Vibration transmission mechanism for generating shear waves |
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| CN (1) | CN212301435U (en) |
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- 2020-06-22 CN CN202021166060.8U patent/CN212301435U/en active Active
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