CN210604224U - Impact hole surrounding rock characteristic test system - Google Patents
Impact hole surrounding rock characteristic test system Download PDFInfo
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- CN210604224U CN210604224U CN201921527955.7U CN201921527955U CN210604224U CN 210604224 U CN210604224 U CN 210604224U CN 201921527955 U CN201921527955 U CN 201921527955U CN 210604224 U CN210604224 U CN 210604224U
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Abstract
The utility model discloses an impact hole country rock characteristic test system, be equipped with the test chamber in the pressure chamber assembly, the rock specimen is arranged in on the lower pressure head of test intracavity, and end face contact under the top of percussion bit and the rock specimen, seal cover sleeve locates on the outer wall of rock specimen, and the upper and lower both ends of seal cover are fixed connection respectively on last pressure head and lower pressure head, the rock specimen is sealed to be arranged in the seal cover, axial extensometer and radial extensometer all are fixed in on the outer wall of seal cover, the pressure head is pressed down to the compression arm, and will go up the pressure head and press and touch on the rock specimen, and be fixed in the test intracavity with the rock specimen. The utility model discloses can measure the deformation characteristic of the hole country rock that strikes under different confined pressure, different impact frequency, the different impact load combination simultaneously, excellent in use effect.
Description
The technical field is as follows:
the utility model relates to an impact hole country rock characteristic test system.
Background art:
in the field of mine rock drilling, in order to improve the operation efficiency of a drilling machine, an impact cutting composite rock breaking method is often adopted. The principle of impact induced rock drilling is shown in fig. 8 (44, induced damage zone rock, 45, impact crushing zone rock in the figure), and the working principle is as follows: the percussion drill 43 percussive drills the central hole under the action of the percussion piston 41, percussive induces rock unloading around the central hole, and cracks are generated under the action of the original rock stress and the impact disturbance load, so that the rock strength is weakened. Meanwhile, the roller bit 42 applies rotary cutting force to the rock around the impact inducing hole to cut and crush the rock, P is applied axial pressure, Q is impact load, and T is rotary cutting torque. When the roller cutter drilling tool cuts and induces a surrounding rock damage area, the abrasion of a drill bit is greatly reduced, and the drilling efficiency is improved, however, no clear specification exists on how the cutting aperture D of the roller cutter is matched with the impact hole D, and how the impact distance L is selected.
Therefore, the impact hole surrounding rock characteristic testing system is provided on the basis of the existing impact cutting composite rock breaking, a test basis is provided for the reasonable design of the impact cutting composite drilling tool, and the drilling efficiency of the impact cutting composite rock breaking is further improved.
The invention content is as follows:
the utility model relates to a solve the problem that above-mentioned prior art exists and provide an impact hole country rock characteristic test system.
The utility model discloses the technical scheme who adopts has: a system for testing the characteristics of impact hole surrounding rock comprises a frame, a hydraulic motor, a pressurizing rod, a supercharger, an air compressor, a servo valve, an electro-hydraulic proportional valve, an oil source, an upper pressure head, an axial extensometer, an impact drill bit, a vibration oil cylinder, a radial extensometer, a rock sample, a seal sleeve and a pressure chamber assembly provided with a lower pressure head, wherein the pressure chamber assembly is fixed on the frame, a testing cavity is arranged in the pressure chamber assembly, the upper pressure head is inserted on the pressure chamber assembly, one end of the upper pressure head extends into the testing cavity of the pressure chamber assembly, the upper end of the lower pressure head is arranged in the testing cavity, the hydraulic motor is fixed on the frame, an output shaft of the hydraulic motor is fixedly connected with the vibration oil cylinder, an output shaft of the vibration oil cylinder is fixedly connected with the impact drill bit, the top end of the impact drill bit extends into the test cavity, an air blowing hole is formed in the impact drill bit, and the air compressor is communicated with the air blowing hole through a pipeline; the servo valve and the electro-hydraulic proportional valve are both connected with an oil source, the servo valve is correspondingly communicated with an oil inlet and an oil return port on the vibration oil cylinder through two pipelines, the electro-hydraulic proportional valve is connected with a hydraulic motor through a pipeline, and the supercharger is communicated with the test cavity through a pipeline; on the frame was located to the compression bar, on the lower pressure head of test intracavity was arranged in to the rock specimen, and the end face contact under the top of percussion bit and the rock specimen, seal cartridge cover located on the outer wall of rock specimen, and the upper and lower both ends of seal cartridge be fixed connection respectively on last pressure head and lower pressure head, in the sealed seal cartridge of arranging in of rock specimen, axial extensometer and radial extensometer all are fixed in on the outer wall of seal cartridge, the compression bar pushes down the upper pressure head, and will go up the pressure head pressure and touch on the rock specimen, and be fixed in the test intracavity with the rock specimen.
Furthermore, the pressure chamber assembly comprises an upper cover, a cylinder body, a lower pressure head and a base, wherein the cylinder body is provided with a test cavity, the upper cover and the base are respectively fixed on the upper side and the lower side of the test cavity, the lower pressure head is fixed on the base, and the top end of the lower pressure head extends into the test cavity; the upper pressure head sequentially penetrates through the upper cover and the barrel body and extends into the testing cavity, and the upper pressure head and the lower pressure head are arranged coaxially.
Furthermore, a drill bit hole is formed in the axis direction of the lower pressure head, and the impact drill bit is arranged in the drill bit hole.
Furthermore, a hole passage of an upper cavity of the vibration oil cylinder, a hole passage of an air pressure and a slag discharge hole are arranged on the base, one pipeline on the servo valve is connected with an oil inlet on the vibration oil cylinder through the hole passage of the upper cavity of the vibration oil cylinder, and the other pipeline on the servo valve is directly connected with an oil return port on the vibration oil cylinder; the pipeline on the air compressor is connected with the air pressure pore canal, and the slag discharge hole is communicated with the drill bit hole on the lower pressure head.
Furthermore, the upper cover and the cylinder body are provided with mutually communicated hydraulic oil pore passages, the hydraulic oil pore passages are communicated with the test cavity, and the supercharger injects hydraulic oil into the test cavity through the hydraulic oil pore passages.
Furthermore, the frame comprises a lower cross beam, two upright columns and an upper cross beam, the two upright columns are fixed on the lower cross beam, the upper cross beam is fixed at the top ends of the upright columns, the hydraulic motor is fixed on the lower cross beam, the pressure chamber assembly is arranged between the two upright columns, and the pressurizing rod is arranged on the upper cross beam.
Furthermore, a lifting oil cylinder is arranged on the outer wall of the upper cross beam, a guide rail is arranged on the outer wall of one upright post, and a moving trolley is arranged on the guide rail.
Furthermore, a pressure sensor is arranged on the pressurizing rod.
Furthermore, the test system also comprises a control cabinet, and the supercharger, the air compressor, the servo valve, the electro-hydraulic proportional valve and the axial and radial extensometers are correspondingly connected with the control cabinet.
Further, the seal cover is the rubber sleeve, and the seal cover is tightly in the outside of rock specimen, and the both ends of seal cover all are fixed in last pressure head lower part and lower pressure head upper portion through the clamp.
The utility model discloses following beneficial effect has:
1) the hydraulic motor and the impact drill bit are jointly positioned at the lower part of the rock sample, and the upper pressure head and the pressurizing rod act on the upper part of the rock sample, so that the actual rock drilling condition is better simulated.
2) The heating device can be added in the pressure chamber assembly, and the dynamic characteristics of the impact hole surrounding rock at different temperatures can be tested.
3) The utility model discloses can measure the deformation characteristic of the hole country rock that strikes under different confined pressure, different impact frequency, the different impact load combination simultaneously, be a neotype composite test system.
Description of the drawings:
fig. 1 is a structural diagram of the present invention.
FIG. 2 is a schematic diagram of the lifting cylinder body for placing a rock sample.
Fig. 3 is a schematic view of the lower cylinder of the lift cylinder.
FIG. 4 is a schematic view of the dolly placement plenum assembly.
Fig. 5 is a structural diagram of the middle pressure chamber assembly of the present invention.
Fig. 6 is a schematic diagram of the principle of the middle vibration cylinder of the present invention.
Fig. 7 is a schematic view of the sealed installation of a rock sample.
Fig. 8 shows a conventional impact induced rock drilling principle.
In the figure:
1-a hydraulic motor; 2-a lower cross beam; 3-upright column; 4-a pressure chamber assembly; 5. a pressurizing rod; 6. a pressure sensor; 7. an upper cross beam; 8-a supercharger; 9-an air compressor; 10-a servo valve; 11-an electro-hydraulic proportional valve; 12-a source of oil; 13-a control cabinet; 14-lifting the oil cylinder; 15-moving the trolley; 16-a guide rail; 17-upper cover; 18-upper pressure head; 20-barrel body; 21-axial extensometer; 22-percussion drill bits; 23-a lower pressure head; 24. a hydraulic oil duct; 25-a base; 26-vibrating the oil cylinder upper cavity pore channel; 27-pneumatic duct; 29-vibration oil cylinder; 30-slag discharge holes; 31-a radial extensometer; a 32-rock sample; 33-sealing sleeve; 34-clamping band.
The specific implementation mode is as follows:
the present invention will be further described with reference to the accompanying drawings.
As fig. 1 to 7, the utility model relates to an impact hole country rock characteristic test system, including frame, hydraulic motor 1, pressure chamber assembly 4, pressure bar 5, booster 8, air compressor 9, servo valve 10, electro-hydraulic proportional valve 11, oil source 12, go up pressure head 18, axial extensometer 21, percussion bit 22, vibrating cylinder 29, radial extensometer 31, rock specimen 32 and seal cover 33.
The pressure chamber assembly 4 is arranged on the frame, a testing cavity 40 is arranged on the pressure chamber assembly 4, the upper pressure head 18 is inserted on the pressure chamber assembly 4, and one end of the upper pressure head 18 extends into the testing cavity 40 of the pressure chamber assembly 4. The hydraulic motor 1 is fixed on the frame, an output shaft of the hydraulic motor 1 is fixedly connected with the vibration oil cylinder 29, an output shaft of the vibration oil cylinder 29 is fixedly connected with the impact drill bit 22, the tail end of the impact drill bit 22 is contacted with the rock sample 32, the impact drill bit 22 is provided with an air blowing hole 220, and the air compressor 9 is communicated with the air blowing hole 220 through a pipeline.
The servo valve 10 and the electro-hydraulic proportional valve 11 are both connected with an oil source 12, the servo valve 10 is correspondingly communicated with an oil inlet and an oil return port on the vibration oil cylinder 29 through two pipelines, the electro-hydraulic proportional valve 11 is connected with the hydraulic motor 1 through a pipeline, and the supercharger 8 is communicated with the test cavity 40 through a pipeline.
The pressurizing rod 5 is arranged on an upper cross beam 7 in the frame, a sealing sleeve 33 for tightly sleeving the rock sample is positioned in the testing cavity, two ends of the sealing sleeve 33 are fixed on the lower part of the upper pressure head 18 and the upper part of the lower pressure head 23 through a clamp 34, the axial extensometer 21 and the radial extensometer 31 are fixed on the outer wall of the sealing sleeve 33,
the pressurizing rod 5 presses down the upper ram 18 and presses the upper ram 18 against the rock sample 32, and fixes the rock sample 32 in the test chamber 40.
The pressure chamber assembly 4 in the utility model comprises an upper cover 17, a cylinder 20, a lower pressure head 23 and a base 25, wherein the cylinder 20 is provided with a test cavity 40, the upper cover 17 and the base 25 are respectively fixed on the upper side and the lower side of the test cavity 40, the lower pressure head 23 is fixed on the base 25, and one end of the lower pressure head 23 extends into the test cavity 40; the upper pressure head 18 penetrates through the upper cover 17 and the cylinder body 20 in sequence and extends into the testing cavity 40, and the upper pressure head 18 and the lower pressure head 23 are arranged coaxially.
Be equipped with slide opening 200 in barrel 20 upper end, this slide opening 200 and test chamber 40 are coaxial and link up, go up and be equipped with step portion 181 on the outer wall of pressure head 18, the cover is equipped with the sealing washer on step portion 181's outer wall, is equipped with the sealing washer and fills up sealed pad structure 210 in last pressure head 18 and barrel 20's cross-under combination department, and the sealing washer is the conventional sealed means among the prior art with sealed pad structure 210, so the utility model discloses no longer describe this part content repeatedly.
A drill hole is provided in the axial direction of the lower ram 23, and the impact drill 22 is placed in the drill hole.
When the upper pressure head 18 presses the rock sample 32 against the lower pressure head 23, in order to prevent the test liquid in the test cavity 40 from leaking out of the drill hole on the lower pressure head 23, a sealing sleeve 33 is sleeved outside the rock sample 32, the sealing sleeve 33 tightly sleeves the rock sample 32, the upper part and the lower part of the sealing sleeve 33 are clamped by a clamping hoop 34 and are separated from the lower end of the upper pressure head and the upper end of the lower pressure head by the sealing sleeve 33.
The base 25 is provided with a vibration oil cylinder upper cavity pore canal 26, an air pressure pore canal 27 and a slag discharge hole 30, one pipeline on the servo valve 10 is connected with an oil inlet of the vibration oil cylinder 29 through the vibration oil cylinder upper cavity pore canal 26, and the other pipeline on the servo valve 10 is directly connected with an oil return port on the vibration oil cylinder 29.
The pipeline of the air compressor 9 is connected with the air pressure pore canal 27, and the slag discharge hole 30 is communicated with the drill bit hole of the lower press head 23.
The utility model provides a frame includes bottom end rail 2, stand 3 and entablature 7, and coexistence post 3 is fixed in on bottom end rail 2, and entablature 7 is fixed in the top of stand 3, and on hydraulic motor 1 was fixed in bottom end rail 2, pressure chamber assembly 4 was arranged in between the coexistence post 3, and on the bolt was fixed in bottom end rail 2 with pressure chamber base 25, pressure bar 5 was located on entablature 7. The utility model provides a pressure rod 5 passes through oil cylinder drive, is equipped with pressure sensor 6 on pressure rod 5, and the pressure value of depression bar 5 records through pressure sensor 6.
The outer wall of the upper cross beam 7 is provided with a lifting oil cylinder 14, the outer wall of one upright post 3 is provided with a guide rail 16, and the guide rail 16 is provided with a movable trolley 15. When the rock sample 32 is replaced, the connection between the hydraulic motor and the vibration oil cylinder is loosened, the connection between the lower beam of the base of the pressure chamber is loosened, the driving oil cylinder drives the pressurizing rod 5 to descend, the pressurizing rod 5 is connected with the pressure chamber assembly 4 through the special connecting sleeve after descending to the proper position, the driving oil cylinder ascends to drive the pressure chamber assembly to ascend, the movable trolley 15 rolls to the lower part of the pressure chamber assembly 4, the driving oil cylinder descends, the pressure chamber assembly is placed on the movable trolley 15, and the movable trolley moves the pressure chamber assembly to the lower part of the lifting oil cylinder 14. And loosening a bolt for connecting the cylinder body in the pressure chamber assembly with the base, enabling the lifting oil cylinder to descend to contact with the upper pressure head of the pressure chamber assembly and be connected with the upper pressure head through the connecting sleeve, driving the cylinder body to ascend by the lifting oil cylinder after connection, and opening the pressure chamber assembly to replace the rock sample. After the rock sample is replaced, the pressure chamber assembly is arranged below the pressurizing rod 5 according to the corresponding sequence, and a new round of test can be carried out.
The utility model discloses still include switch board 13, booster 8, air compressor 9, servo valve 10, electric liquid proportional valve 11 and axial, radial extensometer all correspond and link to each other with switch board 13.
In use, the axial extensometer 21 and the radial extensometer 31 are fixed on the sealing sleeve 33 on the outer wall of the rock sample 32, then the rock sample 32 is placed in the cylinder body 20 (the pressure chamber assembly is placed on the movable trolley 15 under the action of the pressure rod 5 in the initial position, when the rock sample is installed, the lifting oil cylinder 14 lifts up the pressure chamber cylinder body through the adapter (as shown in figure 2), after the rock sample is installed, the lifting oil cylinder 14 descends to place the cylinder body on the base of the pressure chamber assembly (as shown in figure 3), then the lifting oil cylinder retracts, the movable trolley 15 moves the pressure chamber assembly below the pressure rod 5 (as shown in figure 4), the pressure rod 5 extends out under the driving of the driving oil cylinder and is connected with the pressure chamber assembly through the connector, then the driving oil cylinder ascends to drive the whole pressure chamber to ascend, at this moment, the movable trolley 15 can be moved to a proper position, as shown in figure 4, the driving oil cylinder lowers the pressure chamber assembly, the test can be started by loosening and removing the connecting piece between the pressure rod 5 and the pressure chamber assembly and fixing the base of the pressure chamber assembly on the lower cross beam.
In order to simulate the breaking characteristics of rock samples under actual rock pressure conditions, the pressure booster 8 injects hydraulic oil into the test cavity 40 through the hydraulic oil pore channel 24, the pressure (confining pressure) of the hydraulic oil in the test cavity is controlled by the pressure booster 8, and different oil pressure pressures (confining pressure) around the rock samples are regulated by the pressure booster 8 to simulate the rock pressure of different depths of rocks.
The pressurizing rod 5 extends out to press the upper pressure head 18 under the action of the oil cylinder, the pressing force can be measured by the pressure sensor 6, and when the set pressing force is reached, the pressurizing rod 5 stops extending out. The upper ram 18 presses the rock sample 32 against the lower ram 23.
The oil source 12 drives the hydraulic motor 1 to rotate through the electro-hydraulic proportional valve 11, and as the output shaft of the hydraulic motor 1 is connected with the vibration oil cylinder 29 through the connecting rod, and the vibration oil cylinder 29 is directly connected with the impact drill bit 22 through threads, the vibration oil cylinder and the impact drill rod rotate together with the hydraulic motor.
Piston rod among the vibration cylinder 29 realizes reciprocating motion (like fig. 6) through oil feed and oil return, and the structure and the principle of vibration cylinder 29 are current technical content, so the utility model discloses no longer give unnecessary details to the concrete structure and the principle of vibration cylinder 29.
When the hydraulic motor 1 rotates through the vibration oil cylinder 29, the servo valve 10 drives the piston rod of the vibration oil cylinder to vibrate in a reciprocating manner, so that the impact drill bit 22 is driven to impact the rock sample 32 in a rotating manner, and simultaneously, wind energy generated by the air compressor 9 enters the air blowing hole 220 of the impact drill bit 22 through the air pressure hole channel 27, so that broken rock debris generated in the process that the impact drill bit 22 impacts the rock sample 32 is discharged through the slag discharge hole 30.
The impact frequency of the impact drill 22 is regulated by the servo valve 10 and the reject gas pressure is regulated by the air compressor 9. The axial extensometer 21 and the radial extensometer 31 are clamped and fixed on a sealing sleeve 33 by a spring clip, the sealing sleeve 33 is tightly sleeved outside the rock sample, and the sealing sleeve 33 is a thin rubber sleeve with elasticity. When the rock sample core is broken under the action of rotary impact of the impact drill bit, cracks can be generated on the outer ring of the rock sample under the action of the rotary impact of the drill bit and are continuously expanded, a large number of continuously expanded cracks can enable the outer wall of the rock sample to generate axial and radial displacement, and the axial and radial displacement of the rock sample can be transmitted to the axial and radial extensometers through the tensioned sealing sleeves, so that the axial and radial extensometers can measure the axial and radial displacement characteristics of the impact hole surrounding rock under the action of different impact frequencies and impact loads. The confining pressure (hydraulic oil pressure) of the external test cavity of the surrounding rock of the impact hole is set by the supercharger, so that the axial and radial displacement characteristics of the surrounding rock of the impact hole under different confining pressure effects can be measured.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides an impact hole country rock characteristic test system which characterized in that: comprises a frame, a hydraulic motor (1), a pressure rod (5), a supercharger (8), an air compressor (9), a servo valve (10), an electro-hydraulic proportional valve (11), an oil source (12), an upper pressure head (18), an axial extensometer (21), a percussion bit (22), a vibration oil cylinder (29), a radial extensometer (31), a rock sample (32), a seal sleeve (33) and a pressure chamber assembly (4) provided with a lower pressure head (23), wherein the pressure chamber assembly (4) is fixed on the frame, a test cavity (40) is arranged in the pressure chamber assembly (4), the upper pressure head (18) is inserted in the pressure chamber assembly (4), one end of the upper pressure head (18) extends in the test cavity (40) of the pressure chamber assembly (4), the upper end of the lower pressure head (23) is arranged in the test cavity (40), the hydraulic motor (1) is fixed on the frame, and an output shaft of the hydraulic motor (1) is fixedly connected with the vibration oil cylinder (29), an output shaft of the vibration oil cylinder (29) is fixedly connected with the impact drill bit (22), the top end of the impact drill bit (22) extends into the test cavity (40), the impact drill bit (22) is provided with an air blowing hole (220), and the air compressor (9) is communicated with the air blowing hole (220) through a pipeline; the servo valve (10) and the electro-hydraulic proportional valve (11) are both connected with an oil source (12), the servo valve (10) is correspondingly communicated with an oil inlet and an oil return port on the vibration oil cylinder (29) through two pipelines, the electro-hydraulic proportional valve (11) is connected with the hydraulic motor (1) through a pipeline, and the supercharger (8) is communicated with the test cavity (40) through a pipeline; pressure bar (5) are located in the frame, on lower pressure head (23) in test chamber (40) is arranged in rock specimen (32), and the tip of percussion bit (22) and the end face contact under the rock specimen, seal cover (33) cover is located on the outer wall of rock specimen (32), and the upper and lower both ends of seal cover (33) are fixed connection respectively on last pressure head (18) and lower pressure head (23), rock specimen (32) are sealed to be arranged in seal cover (33), axial extensometer (21) and radial extensometer (31) all are fixed in on the outer wall of seal cover (33), pressure head (18) are pressed down in pressure bar (5), and press on last pressure head (18) on rock specimen (32), and be fixed in test chamber (40) rock specimen (32).
2. The percussion hole wall rock characteristic testing system of claim 1, wherein: the pressure chamber assembly (4) comprises an upper cover (17), a cylinder body (20), a lower pressure head (23) and a base (25), wherein a testing cavity (40) is formed in the cylinder body (20), the upper cover (17) and the base (25) are respectively fixed to the upper side and the lower side of the testing cavity (40), the lower pressure head (23) is fixed on the base (25), and the top end of the lower pressure head (23) extends into the testing cavity (40); the upper pressure head (18) sequentially penetrates through the upper cover (17) and the cylinder body (20) and extends into the testing cavity (40), and the upper pressure head (18) and the lower pressure head (23) are coaxially arranged.
3. The percussion hole wall rock characteristic testing system of claim 2, wherein: and a drill bit hole is formed in the axis direction of the lower pressure head (23), and the impact drill bit (22) is arranged in the drill bit hole.
4. The percussion hole wall rock characteristic testing system of claim 3, wherein: a vibration oil cylinder upper cavity pore passage (26), an air pressure pore passage (27) and a slag discharge hole (30) are arranged on the base (25), one pipeline on the servo valve (10) is connected with an oil inlet on the vibration oil cylinder (29) through the vibration oil cylinder upper cavity pore passage (26), and the other pipeline on the servo valve (10) is directly connected with an oil return port on the vibration oil cylinder (29); the pipeline on the air compressor (9) is connected with the air pressure pore canal (27), and the slag discharge hole (30) is communicated with the drill bit hole on the lower pressure head (23).
5. The percussion hole wall rock characteristic testing system of claim 3, wherein: and the upper cover (17) and the cylinder body (20) are provided with hydraulic oil pore passages (24) which are communicated with each other, the hydraulic oil pore passages (24) are communicated with the test cavity (40), and the supercharger (8) injects hydraulic oil into the test cavity (40) through the hydraulic oil pore passages (24).
6. The percussion hole wall rock characteristic testing system of claim 1, wherein: the frame includes bottom end rail (2), stand (3) and entablature (7), two stand (3) are fixed in on bottom end rail (2), and entablature (7) are fixed in the top of stand (3), and on hydraulic motor (1) were fixed in bottom end rail (2), pressure chamber assembly (4) were arranged in between two stand (3), and on entablature (7) were located in pressure rod (5).
7. The percussion hole wall rock characteristic testing system of claim 6, wherein: the outer wall of the upper cross beam (7) is provided with a lifting oil cylinder (14), the outer wall of one upright post (3) is provided with a guide rail (16), and the guide rail (16) is provided with a movable trolley (15).
8. The percussion hole wall rock characteristic testing system of claim 1, wherein: and a pressure sensor (6) is arranged on the pressurizing rod (5).
9. The percussion hole wall rock characteristic testing system of claim 1, wherein: the testing system further comprises a control cabinet (13), and the supercharger (8), the air compressor (9), the servo valve (10), the electro-hydraulic proportional valve (11) and the axial and radial extensometers are correspondingly connected with the control cabinet (13).
10. The percussion hole wall rock characteristic testing system of claim 1, wherein: seal cover (33) are the rubber sleeve, and seal cover (33) cover is tight in the outside of rock specimen (32), and the both ends of seal cover (33) all are fixed in pressure head (18) lower part and pressure head (23) upper portion down through clamp (34).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921527955.7U CN210604224U (en) | 2019-09-16 | 2019-09-16 | Impact hole surrounding rock characteristic test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921527955.7U CN210604224U (en) | 2019-09-16 | 2019-09-16 | Impact hole surrounding rock characteristic test system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501240A (en) * | 2019-09-16 | 2019-11-26 | 南京工业职业技术学院 | A kind of impact opening characteristics of surrounding rock test macro |
| WO2023107021A1 (en) * | 2021-12-09 | 2023-06-15 | T.K.G. Otomotiv Sanayi Ve Ticaret Anonim Sirketi | A test device for use in detection of mechanical characteristics in sheet materials |
-
2019
- 2019-09-16 CN CN201921527955.7U patent/CN210604224U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501240A (en) * | 2019-09-16 | 2019-11-26 | 南京工业职业技术学院 | A kind of impact opening characteristics of surrounding rock test macro |
| WO2023107021A1 (en) * | 2021-12-09 | 2023-06-15 | T.K.G. Otomotiv Sanayi Ve Ticaret Anonim Sirketi | A test device for use in detection of mechanical characteristics in sheet materials |
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