CN219908868U - Automatic drop hammer device for standard penetration test - Google Patents
Automatic drop hammer device for standard penetration test Download PDFInfo
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- CN219908868U CN219908868U CN202320807020.4U CN202320807020U CN219908868U CN 219908868 U CN219908868 U CN 219908868U CN 202320807020 U CN202320807020 U CN 202320807020U CN 219908868 U CN219908868 U CN 219908868U
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- automatic drop
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- 230000035515 penetration Effects 0.000 title claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims abstract description 87
- 230000000149 penetrating effect Effects 0.000 claims abstract description 41
- 239000002184 metal Substances 0.000 claims description 14
- 239000000523 sample Substances 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 8
- 238000005553 drilling Methods 0.000 description 14
- 239000002689 soil Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000011835 investigation Methods 0.000 description 6
- 239000004576 sand Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 241000282806 Rhinoceros Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model provides an automatic drop hammer device for a standard penetration test. The automatic hammer falling device comprises a support frame, an automatic hammer falling system, an automatic hammer falling frame and a through hammer, wherein the automatic hammer falling frame is slidably arranged on the support frame, the through hammer is slidably arranged on the automatic hammer falling frame, and a hammer cap protruding out of a hammer body is arranged at the top of the through hammer; the automatic drop hammer system comprises a motor, an upper transmission gear, a lower transmission gear and a chain for connecting the two gears in a transmission way, wherein the upper transmission gear and the lower transmission gear are respectively and rotatably arranged on an upright post of an automatic drop hammer frame, the outer space between the two gears is 76cm, a protruding push block is arranged on the transmission chain, and the protruding push block is positioned on one side, adjacent to a penetrating hammer guiding touch rod, of the transmission chain and extends to the lower part of a hammer cap; the output end of the motor is connected with the rotating shaft of one of the driving wheels. According to the utility model, automatic drop hammer is realized, manual carrying is not needed, and standard penetration test can be realized by driving the chain to lift the heavy hammer by means of the motor, so that time is saved, and safety accidents are avoided.
Description
Technical Field
The utility model relates to the technical field of foundation engineering detection, in particular to an automatic drop hammer device for a standard penetration test.
Background
The standard penetration test is a frequently adopted in-situ test investigation means, the conventional standard penetration test is usually carried out by adopting a free drop hammer method, a rotary drilling machine is used for drilling before the test, and after the drilling is carried out to the test depth, the test is carried out after the residual soil at the bottom of the hole is removed; in the test, a standard penetration test injector and a drill rod are connected in sequence and placed in a drill hole, a heavy hammer capable of automatically unhooking is sleeved into a guide rod, and then a diesel engine is used for driving a winch to lift the heavy hammer and the guide rod and install the heavy hammer and the guide rod at the end part of the drill rod; lifting the heavy hammer to an automatic unhooking position by utilizing a winch, freely falling and knocking a guide rod base (a hammer pad), converting potential energy of the heavy hammer into kinetic energy, transmitting the kinetic energy to an injector through the hammer pad and a drill rod, and driving the injector into test soil to finish hammering; and repeating the steps to record the test hammering number at the specified penetration depth, namely completing one test, and evaluating the physical states of sand, silt and cohesive soil, the soil strength, deformation parameters, foundation bearing capacity, single pile bearing capacity, the liquefaction of the sand and silt, the possibility of pile forming and the like through the standard penetration test hammering number.
In the standard penetration test in the prior art, a standard through hammer is manually conveyed, and then a diesel engine is used for driving a winch to lift the heavy hammer and a guide rod to be arranged at the end part of a drill rod; the method is characterized in that a winch is utilized to lift the heavy hammer to an automatic unhooking position, the heavy hammer falls freely to knock the guide rod base (hammer pad), the method wastes manpower and material resources, potential safety hazards are further provided, and when a test area is a compact sand layer or a hard soil layer, the number of standard impact is high, the number of times of manually lifting the heavy hammer is large, and the duration is long. In addition, when the existing standard penetration test adopts an automatic unhooking free-falling hammer method to carry out the test, the penetrating device needs to be driven into a test soil layer at a certain penetration speed, 15cm is pre-driven, the penetrating device continues to penetrate into the soil for 30cm, the hammering number is recorded, in the process, the lifting of the standard penetrating hammer needs to be realized by manually operating a winch, and the potential safety hazard exists and the manpower and material resources are wasted.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model provides the automatic drop hammer device for the standard penetration test, which can realize automatic drop hammer, is fixed on a investigation drilling machine, does not need manual carrying, and can realize the standard penetration test by driving a chain to lift a heavy hammer by means of a motor, thereby saving time and avoiding the occurrence of safety accidents.
In order to achieve the technical aim, the utility model provides an automatic drop hammer device for a standard penetration test, which comprises a support frame, an automatic drop hammer frame, a penetrating hammer and an automatic drop hammer system, wherein the penetrating hammer and the automatic drop hammer system are arranged on the automatic drop hammer frame; the automatic drop hammer system comprises a motor, an upper transmission gear, a lower transmission gear and a transmission chain, wherein the upper transmission gear and the lower transmission gear are respectively rotatably arranged on an upright post of an automatic drop hammer frame and are in transmission connection through the transmission chain, the distance between the uppermost edge of the upper transmission gear and the lowermost edge of the lower transmission gear is 76cm, the transmission chain is parallel to a penetrating hammer guiding feeler lever, a protruding push block is arranged on the transmission chain, and the protruding push block is positioned on one side, adjacent to the penetrating hammer guiding feeler lever, of the transmission chain and extends to the lower part of a hammer cap; the output end of the motor is connected with the rotating shaft of one of the driving wheels.
The utility model has the preferable technical scheme that: the output end of the motor is connected with the rotating shaft of the lower transmission gear and drives the transmission chain to circularly rotate along the upper transmission gear and the lower transmission gear, and the protruding pushing block extends to the lower part of the hammer cap and pushes the penetrating hammer upwards when the transmission chain moves to one side of the penetrating hammer guiding feeler lever adjacent to the penetrating hammer.
The utility model has the preferable technical scheme that: the support frame comprises a square vertical face frame and a square bottom plane frame, wherein the vertical face frame and the square bottom plane frame form an L-shaped support frame, and an inclined strut is arranged between the vertical face frame and the square bottom plane frame; the automatic hammer falling frame is a square frame with the width and the height smaller than those of the vertical face frame, hollow circular rings are symmetrically arranged on two sides of the automatic hammer falling frame, the hollow circular rings on two sides of the automatic hammer falling frame are correspondingly sleeved on the two lifting guide rods, and hanging rings are arranged at the top of the automatic hammer falling frame.
The utility model has the preferable technical scheme that: the motor is provided with a detachable storage battery and a control switch in a matching way, the motor, the storage battery and the control switch are respectively provided with a wire connector, a power transmission system capable of controlling power supply and power failure is formed by connecting the wire connectors, the power transmission system is arranged in a metal control box, the metal control box is welded on an automatic hammer falling frame, and the control switch control equipment realizes the power supply and the power failure of the motor.
The utility model has the preferable technical scheme that: when the through hammer descends to the lowest point, the protruding pushing block moves to the lower transmission gear, and at the moment, the protruding pushing block is in contact with the hammer cap of the through hammer.
The utility model has the preferable technical scheme that: the protruding pushing block is an arc-shaped or arc-like or ox-horn-shaped pushing block, and the part of the protruding pushing block far away from the tip is fixed on the transmission chain.
The utility model has the preferable technical scheme that: the automatic hammer falling frame and the vertical face frame bottom are provided with guide holes corresponding to the positions of the penetrating hammer guide feeler levers, and the penetrating hammer guide feeler levers penetrate through the guide holes and are connected with the drill rods through drill rod connectors; a hammering disc is arranged at the position of the penetrating hammer guide feeler lever, which is positioned on the bottom surface of the automatic hammer falling frame, and when the penetrating hammer descends to the lowest position, the bottom surface is contacted with the hammering disc.
The utility model has the preferable technical scheme that: the automatic hammer falling frame comprises two hollow upright posts and two hollow horizontal rods, the motor, the upper transmission gear and the lower transmission gear are all arranged on the upright post on one side of the hollow upright posts, and the top of the penetrating hammer guiding touch rod is fixed on the upper horizontal rod through bolts, nuts and nuts.
The chain with the metal protruding heads is arranged during passing, the chain is controlled to circularly rotate through the motor, the metal protruding heads are similar to rhinoceros horns and can circularly reciprocate along with the chain, the hammer top of the through hammer is provided with the hammer cap protruding out of the hammer body, when the transmission device is started, the chain belt circulates along the metal protruding heads, the metal protruding heads can hook the through hammer when encountering the hammer cap during circulation, so that the through hammer rises, when the metal protruding heads rise to 76cm, the metal protruding heads descend, at the moment, the through hammer freely falls down to hammer, and the automatic drop hammer can be realized through repeated circulation; the power transmission system capable of controlling power supply and power failure is formed by connecting the wire connectors, and the power supply and power failure are realized by controlling the switch equipment, so that the automatic drop hammer is realized.
The support frame comprises a bottom plane frame and a vertical plane frame perpendicular to the bottom plane frame, wherein the bottom plane frame and the vertical plane frame form an L-shaped support, and inclined metal rods are welded on the L-shaped support to form a triangular framework for improving stability. The automatic drop hammer frame is arranged in the vertical face frame, the smooth lifting guide rod is arranged in the vertical face frame, the automatic drop hammer frame is sleeved on the guide rod through the hollow circular ring, and a lifting system is formed between the automatic drop hammer frame and the vertical face frame.
The automatic drop hammer device is fixed on the investigation drilling machine, and standard penetration test can be realized by driving the chain to lift the heavy hammer by means of the motor, so that the problems of carrying the standard through hammer every time marking is used and lifting by manually controlling the winch can be avoided. When the test section is a compact sand layer or a hard soil layer, the standard penetration test can be realized by the automatic falling hammer and the automatic falling hammer fixing device without manual carrying and by driving the chain lifting hammer by the motor, so that the time is saved and the safety accident is avoided.
Drawings
FIG. 1 is a front view of the present utility model;
FIG. 2 is a side view of the present utility model;
FIG. 3 is a front view of a metal nose of the present utility model;
FIG. 4 is a schematic front view of the automatic drop hammer of the present utility model;
fig. 5 is a cross-sectional view of the motor of the present utility model.
In the figure: 1-supporting frame, 100-vertical frame, 101-bottom plane frame, 2-automatic hammer falling frame, 3-through hammer, 300-hammer cap, 4-lifting guide rod, 5-through hammer guiding touch probe rod, 500-drill rod connector, 6-motor, 7-upper transmission gear, 8-lower transmission gear, 9-transmission chain, 10-protruding pushing block, 11-diagonal bracing frame, 12-hollow circular ring, 13-hanging ring, 14-storage battery, 15-control switch, 16-motor, 17-control box, 18-guide hole, 19-hammering disc and 20-wire connector.
Detailed Description
The utility model is further described below with reference to the drawings and examples. Fig. 1 to 5 are drawings of embodiments, which are drawn in a simplified manner, for the purpose of clearly and concisely illustrating embodiments of the present utility model. The following technical solutions presented in the drawings are specific to embodiments of the present utility model and are not intended to limit the scope of the claimed utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships conventionally put in place when the inventive product is used, or the directions or positional relationships conventionally understood by those skilled in the art are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present utility model.
The embodiment provides an automatic drop hammer device for a standard penetration test, which is shown in fig. 1 to 5, and comprises a support frame 1, an automatic drop hammer frame 2, a through hammer 3 arranged on the automatic drop hammer frame 2 and an automatic drop hammer system, wherein the support frame 1 comprises a square vertical face frame 100 and a bottom plane frame 101, the vertical face frame 100 and the bottom plane frame 101 form an L-shaped support frame, and an inclined support frame 11 is arranged between the vertical face frame 100 and the bottom plane frame 101; the vertical face frame 100 is provided with lifting guide rods 4 at positions adjacent to the two upright posts respectively, the automatic hammer falling frame 2 is a square frame with width and height smaller than those of the vertical face frame 100, hollow circular rings 12 are symmetrically arranged on two sides of the automatic hammer falling frame 2, the two hollow circular rings 12 are slidably arranged on the two lifting guide rods 4, and hanging rings 13 are arranged at the top of the automatic hammer falling frame 2. When the standard penetration test is carried out, as the lengths of all drill rods are different, the lifting height of the automatic hammer falling frame 2 can be realized through lifting of the winch to adjust the penetration guide touch probe rod 5 to be connected with the drill rods, so that the standard penetration test is realized.
The embodiment provides an automatic drop hammer device for a standard penetration test, as shown in fig. 1 to 5, the automatic drop hammer frame 2 comprises two hollow upright posts and two hollow horizontal rods, a penetrating hammer guiding touch rod 5 is arranged on the automatic drop hammer frame 2, the upper end of the penetrating hammer guiding touch rod 5 is fixed on the horizontal rod at the upper part of the automatic drop hammer frame 2 through bolts, nuts and nuts, the lower end of the penetrating hammer guiding touch rod extends out of the automatic drop hammer frame 2, a drill rod connector 500 is arranged at the lower end of the penetrating hammer guiding touch rod 5, a guiding hole 18 is arranged at the positions, corresponding to the penetrating hammer guiding touch rod 5, of the bottoms of the automatic drop hammer frame 2 and the vertical face frame 100, and the penetrating hammer guiding touch rod 5 penetrates through the guiding hole 18 and is connected with a drill rod through the drill rod connector 500; the hammer penetrating hammer guiding touch rod 5 is provided with a hammering disc 19 at the position of the bottom surface of the automatic hammer falling frame 2, and when the penetrating hammer 3 descends to the lowest position, the bottom surface is contacted with the hammering disc 19 to perform hammering test. The penetrating hammer 3 is slidably arranged on the penetrating hammer guiding touch rod 5, and a hammer cap 300 protruding out of the hammer body is arranged on the top of the penetrating hammer 3.
The embodiment provides an automatic drop hammer device for a standard penetration test, as shown in fig. 1 to 5, the automatic drop hammer system comprises a motor 6, an upper transmission gear 7, a lower transmission gear 8 and a transmission chain 9, wherein the upper transmission gear 7 and the lower transmission gear 8 are respectively rotatably arranged on a column of an automatic drop hammer frame 2 and are in transmission connection through the transmission chain 9, the distance between the uppermost edge of the upper transmission gear 7 and the lowermost edge of the lower transmission gear 8 is 76cm, the transmission chain 9 and a penetrating hammer guiding touch probe 5 are parallel to each other, a protruding push block 10 is arranged on the transmission chain 9, and the protruding push block 10 is positioned on one side of the transmission chain 9 adjacent to the penetrating hammer guiding touch probe 5 and extends to the lower part of a hammer cap 300; the output end of the motor 6 is connected with the rotating shaft of the lower transmission gear 8 and drives the transmission chain 9 to circularly rotate along the upper transmission gear 7 and the lower transmission gear 8, and the protruding push block 10 extends to the lower part of the hammer cap 300 and pushes the penetrating hammer 3 upwards when the transmission chain 9 moves to the side, adjacent to the penetrating hammer guiding touch rod 5. When the penetrating hammer 3 descends to the lowest point, the protruding push block 10 moves to the position of the lower transmission gear 8, and at this time, the protruding push block 10 is in contact with the hammer cap 300 of the penetrating hammer 3. The protruding push block 10 is an arc-shaped or arc-like or ox-horn-shaped push block, the part of the protruding push block, which is far away from the tip end, is fixed on the transmission chain 9, and the protruding push block 10 can circularly reciprocate along with the chain. The motor 6 can realize the up-and-down movement of the transmission chain in an alternating manner of forward rotation and reverse rotation, and the protruding push block 10 moves up and down on the same side of the chain at the moment; the protruding push block 10 can be lifted by driving the chain to rotate in the same direction, and the protruding push block 10 can be lifted up and down on the chains at different sides.
The embodiment provides an automatic drop hammer device for standard penetration test, as shown in fig. 1 to 5, wherein the motor 6, the upper transmission gear 7 and the lower transmission gear 8 are all arranged on one side upright post. The motor 6 is provided with a detachable storage battery 14 and a control switch 15 in a matching way, the motor 6, the storage battery 14 and the control switch 15 are respectively provided with a wire connector 20, the wire connectors 20 are connected to form a power transmission system capable of controlling power supply and power failure, the power transmission system is arranged in a metal control box 17, the metal control box 17 is welded on the automatic hammer dropping frame 2, and the power supply and the power failure of the motor are realized through the control switch 15; the motor 6 is arranged in the control box 17, and an output shaft of the motor extends out of the control box 17 and is connected with a rotating shaft of the lower transmission gear 8.
When the automatic drop hammer system is started, the transmission chain 9 carries the protruding push block 10 to circulate, the protruding push block 10 can construct the through hammer 3 when encountering a hammer cap in the circulation process, so that the through hammer 3 rises, when the through hammer rises to 76cm, the protruding push block 10 descends along the transmission chain, at the moment, the through hammer freely falls down to hammer, and the automatic drop hammer can be realized through repeated circulation.
At present, the investigation drilling machine is a crawler-type drilling machine, so that the drilling machine is convenient to move, the automatic drop hammer device for the standard penetration test in the embodiment can be welded at a proper position of the investigation drilling machine through an L-shaped bracket, and can move together with the drilling machine to move, so that the condition of manually carrying drop hammers can be avoided. And the L-shaped bracket is fixed through the inclined bracket 11, so that the stability is stronger and the safety is higher. The vertical face support 100 of the support frame 1 is provided with smooth lifting guide rods, standard penetration tests are required to be carried out under different depths during investigation, at this time, the lengths of the drilling rods are different, the automatic hammer falling frame 2 is lifted by hooks on a winch to enable the automatic hammer falling frame to lift up and down along the support frame 1, the penetration guide touch rod is adjusted to be connected with drilling rods with different lengths, after the automatic hammer falling system is connected with the drilling rods, a motor 6 of the automatic hammer falling system can be started through a control switch 15, the motor 6 drives a lower transmission gear 8 to rotate, thereby driving a transmission chain 9 to move, a protruding push block 10 on the transmission chain 9 starts to move upwards after constructing a hammer cap 300 of a new penetration hammer 3, after the drilling rod reaches 76cm, the falling hammer descends to the lowest point hammer hammering hammer pad under the action of gravity, the protruding push block 10 is circularly reciprocated, and continues to move upwards from the lowest point until the test is finished. After the end, the button of the control switch 15 is pressed again, and the automatic drop hammer system can be disconnected. The utility model solves the problem that people repeatedly lift the hammer and drop the hammer through the winch, and also solves the potential safety hazard of dropping the hammer. The whole standard penetration test process realizes full-automatic drop hammer through motor drive, and the device controls the verticality of the drill rod, thereby freeing up manpower and material resources.
In order to facilitate the installation of the motor and the detachable storage battery, wire connectors and a control switch are arranged on the motor and the battery to control the on-off of the current.
The foregoing description is of one embodiment of the utility model and is thus not to be taken as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of the utility model should be assessed as that of the appended claims.
Claims (8)
1. An automatic drop hammer device for standard penetration test, which is characterized in that: the automatic drop hammer device comprises a support frame (1), an automatic drop hammer frame (2), a through hammer (3) and an automatic drop hammer system, wherein the through hammer (3) and the automatic drop hammer system are arranged on the automatic drop hammer frame (2), a lifting guide rod (4) is arranged on the support frame (1), the automatic drop hammer frame (2) is slidably arranged on the lifting guide rod (4), a through hammer guide touch probe rod (5) is arranged on the automatic drop hammer frame (2), the upper end of the through hammer guide touch probe rod (5) is fixed at the top of the automatic drop hammer frame (2), the lower end of the through hammer guide touch probe rod extends out of the automatic drop hammer frame (2), a drill rod connector (500) is arranged at the lower end of the through hammer guide touch probe rod, and a hammer cap (300) protruding a hammer body is arranged at the top of the through hammer (3); the automatic drop hammer system comprises a motor (6), an upper transmission gear (7), a lower transmission gear (8) and a transmission chain (9), wherein the upper transmission gear (7) and the lower transmission gear (8) are respectively rotatably arranged on an upright post of the automatic drop hammer frame (2) and are in transmission connection through the transmission chain (9), the distance between the uppermost edge of the upper transmission gear (7) and the lowermost edge of the lower transmission gear (8) is 76cm, the transmission chain (9) is parallel to the penetration hammer guiding touch probe rod (5), a protruding push block (10) is arranged on the transmission chain (9), and the protruding push block (10) is positioned on one side, adjacent to the penetration hammer guiding touch probe rod (5), of the transmission chain (9) and extends to the lower part of the hammer cap (300); the output end of the motor (6) is connected with the rotating shaft of one of the driving wheels.
2. An automatic drop hammer apparatus for standard penetration test as defined in claim 1, wherein: the output end of the motor (6) is connected with the rotating shaft of the lower transmission gear (8) and drives the transmission chain (9) to circularly rotate along the upper transmission gear (7) and the lower transmission gear (8), and the protruding pushing block (10) extends to the lower part of the hammer cap (300) and pushes the penetrating hammer (3) upwards when the transmission chain (9) moves to the side, adjacent to the penetrating hammer, of the penetrating hammer guiding touch rod (5).
3. An automatic drop hammer device for standard penetration test according to claim 1 or 2, wherein: the support frame (1) comprises a square vertical face frame (100) and a bottom plane frame (101), wherein the vertical face frame (100) and the bottom plane frame (101) form an L-shaped support frame, and an inclined strut (11) is arranged between the vertical face frame (100) and the bottom plane frame (101); lifting guide rods (4) are respectively arranged at positions, adjacent to the two upright posts, of the elevation frame (100), the automatic hammer falling frame (2) is a square frame with the width and the height smaller than those of the elevation frame (100), hollow circular rings (12) are symmetrically arranged on two sides of the automatic hammer falling frame, the two hollow circular rings (12) on two sides are correspondingly sleeved on the two lifting guide rods (4), and hanging rings (13) are arranged at the top of the automatic hammer falling frame (2).
4. An automatic drop hammer device for standard penetration test according to claim 1 or 2, wherein: the motor (6) is provided with a detachable storage battery (14) and a control switch (15) in a matching way, the motor (6), the storage battery (14) and the control switch (15) are respectively provided with a wire connector (20), the wire connectors (20) are connected to form a power transmission system capable of controlling power supply and power failure, the power transmission system is arranged in a metal control box (17), the metal control box (17) is welded on the automatic hammer falling frame (2), and the control switch (15) realizes power supply and power failure of the motor.
5. An automatic drop hammer device for standard penetration test according to claim 1 or 2, wherein: when the through hammer (3) descends to the lowest point, the protruding pushing block (10) moves to the position of the lower transmission gear (8), and at the moment, the protruding pushing block (10) is in contact with the hammer cap (300) of the through hammer (3).
6. An automatic drop hammer device for standard penetration test according to claim 1 or 2, wherein: the protruding pushing block (10) is an arc-shaped or arc-like or ox-horn-shaped pushing block, and the part of the protruding pushing block, which is far away from the tip end, is fixed on the transmission chain (9).
7. An automatic drop hammer apparatus for standard penetration test according to claim 3, wherein: the automatic hammer dropping frame (2) and the vertical face frame (100) are provided with guide holes (18) at the bottoms corresponding to the positions of the penetrating hammer guide touch probe rods (5), and the penetrating hammer guide touch probe rods (5) penetrate through the guide holes (18) and are connected with drill rods through drill rod connectors (500); a hammering disc (19) is arranged at the position, located on the bottom surface of the automatic hammer falling frame (2), of the penetrating hammer guiding touch rod (5), and when the penetrating hammer (3) descends to the lowest position, the bottom surface is contacted with the hammering disc (19).
8. An automatic drop hammer apparatus for standard penetration test according to claim 3, wherein: the automatic hammer falling frame (2) comprises two hollow upright posts and two hollow horizontal rods, the motor (6), the upper transmission gear (7) and the lower transmission gear (8) are all arranged on the upright posts on one side of the automatic hammer falling frame, and the top of the penetrating hammer guiding touch rod (5) is fixed on the upper horizontal rod through bolts, nuts and nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320807020.4U CN219908868U (en) | 2023-04-12 | 2023-04-12 | Automatic drop hammer device for standard penetration test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320807020.4U CN219908868U (en) | 2023-04-12 | 2023-04-12 | Automatic drop hammer device for standard penetration test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219908868U true CN219908868U (en) | 2023-10-27 |
Family
ID=88426393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320807020.4U Active CN219908868U (en) | 2023-04-12 | 2023-04-12 | Automatic drop hammer device for standard penetration test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219908868U (en) |
-
2023
- 2023-04-12 CN CN202320807020.4U patent/CN219908868U/en active Active
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