CN115420634A - Rock drillability experiment instrument - Google Patents

Abstract

The invention discloses a rock drillability tester, which comprises a control unit action unit, wherein the control unit is an upper computer control box; the action unit is a rock drilling and pressing device and comprises a bottom plate, a middle bedplate, a top plate and a connecting column, wherein the connecting column penetrates through the middle bedplate to connect the bottom plate with the top plate, the middle bedplate is movably arranged on the connecting column and is connected with the top plate through a height adjusting mechanism, a drilling pressure experiment mechanism is arranged on the middle bedplate, the bottom plate is fixedly connected with the connecting column, a test piece fixing mechanism is arranged on the bottom plate, and the test piece fixing mechanism is arranged right below the drilling pressure experiment mechanism and is matched with a test piece for use; this rock drillability experiment appearance can carry out the weight on bit through host computer control box control rock drilling equipment to the rock when using, recycles the time that the real-time drilling depth of high accuracy degree of depth displacement sensor test corresponds, and then confirms the drillability grade value of rock, and accurate completion is hierarchical to rock drillability, has characteristics simple to use, that degree of automation is high and the precision is high.

Description

A rock drillability tester

technical field

The invention relates to the technical field of rock physiology survey equipment, in particular to a rock drillability tester.

Background technique

The rapid development of the geological drilling industry is inseparable from the early investigation of the domestic geological rock structure characteristics and rock distribution. In my country: the fine sandstone layer is mainly distributed in the Yangtze River Delta Plain and the old course of the Yellow River in northern Jiangsu. The fine sandstone layer Distributed in the Lixia River and Taihu Lake areas, the pebble-bearing medium-coarse sandstone layers are mainly distributed in the north of the Huaihe River, the sub-sandstone layers are mainly distributed in the Yangtze River Delta plain area, the Yellow River flooding area and the coastal area, and the sticky rock layers are distributed throughout the province. In addition to coastal areas and the Yangtze River Delta, sub-sticky rock formations are widely distributed in various places; in the process of rock geological exploration, the detection and experiment of various rock physical properties are indispensable technical means in this field;

In the process of rock physical property survey, rock drillability refers to the ability of rock to resist drilling fracture, which reflects the difficulty of drilling holes, and is a quantitative index of rock resistance to mechanical fracture during drilling. The main basis for selecting the drilling method, drill bit structure type, drilling process parameters, measuring the drilling speed and implementing quota management;

However, in the prior art and experimental equipment, there is no experimental equipment specially designed for rock drillability experiments, so it is urgent to design an experimental equipment that can be specially used for rock drillability experiments.

Contents of the invention

In view of the above existing problems, the present invention aims to provide a rock drillability tester. When the rock drillability tester is in use, it can control the rock drilling pressure device through the control box of the host computer to perform drilling pressure on the rock, and then use The high-precision depth displacement sensor tests the time corresponding to the real-time drilling depth, and then determines the drillability level of the rock, and accurately completes the drillability classification of the rock. It has the characteristics of simple use, high degree of automation and high precision.

In order to achieve the above object, the technical scheme adopted in the present invention is as follows:

A rock drillability tester, comprising a control unit and an action unit, the control unit is connected to the action unit, and controls the action unit to work;

The control unit is an upper computer control box, and the input end of the upper computer control box is connected with a booster pump and a power supply box;

The action unit is a rock drilling pressure device, including a bottom plate, a middle plate, a top plate and a connecting column, and the connecting column passes through the middle plate to connect the bottom plate and the top plate, wherein the middle plate is movably arranged on the connecting column, It is connected with the top plate through a height adjustment mechanism, and a drilling pressure test mechanism is set on the middle platform, the bottom plate is set at the lower end of the connecting column, and is fixedly connected with the connecting column, and a specimen fixing mechanism is set on the bottom plate, so The above-mentioned specimen fixing mechanism is arranged directly below the weight-on-bit test mechanism, and is used in conjunction with the specimen.

Preferably, the weight-on-bit test mechanism includes an L-shaped fixing plate, a connecting plate, a limit fixture and a weight-on-bit assembly, the fixing plate is symmetrically installed on the middle platform through bolts, and the connecting plate is installed on the Between the two fixed plates, and used in conjunction with the height adjustment mechanism; the limit fixture includes an arc-shaped limit plate and a threaded connecting rod, the threaded connecting rod is arranged on the back side of the arc-shaped limit plate, and passes through The adjustment groove provided on the L-shaped fixing plate is used in cooperation with the fastening nut, and a supporting plate is also provided on the lower side of the arc-shaped limiting plate, and the supporting plate is used in cooperation with the drilling pressure assembly.

Preferably, the drilling pressure assembly includes a hydraulic cylinder, a transfer connector, a motor and a drill rod, and the hydraulic cylinder is installed between two symmetrically arranged limit fixtures, controlled by the upper computer control box, and the hydraulic cylinder The end of the piston rod is rotatably connected to the drill pipe through a transfer connector, the motor is fixedly arranged on one side of the transfer connector, and a first drive gear is arranged at the power output end of the motor, and the first drive gear is connected to the The second driven gear arranged at the end of the drill rod meshes with each other, and the motor drives the drill rod to rotate. The drill rod passes through the middle plate through the guide sleeve, and a drilling assembly is arranged at the lower end of the drill rod.

Preferably, a first snap-fit groove and a second snap-fit groove are symmetrically arranged on the transfer connector, wherein the first snap-fit groove is connected to the piston rod of the hydraulic cylinder through a connecting pin, and the second snap-fit groove A first bearing is arranged in the connecting groove, and the drill rod is rotatably connected with the second engaging groove through the first bearing.

Preferably, the drilling assembly includes a micro-drill and a drill installation mechanism, the micro-drill is installed on the front end of the drill rod through the drill installation mechanism, and the drill installation mechanism includes a collet, a tension screw, a third helical gear and The fourth helical gear, the collet is movably installed in the installation cavity at the front end of the drill pipe, and the rear end of the collet is threadedly connected with the tension screw, and the tension screw is installed in the inner cavity of the drill pipe through the third bearing Among them, the third helical gear is installed at the tail end of the tightening screw and meshes with the fourth helical gear. The fourth helical gear is installed in the drill rod through the connecting rod and the bearing, and is set There is a hexagonal card slot, and the hexagonal card slot is used in cooperation with the hexagonal insertion rod arranged on the adjusting rod.

Preferably, the installation cavity is a trapezoidal installation groove with a large opening and a small interior, the collet includes a threaded connection sleeve and an arc-shaped clip, the threaded connection sleeve is used in conjunction with a tension screw, and the arc The shaped clips are arranged symmetrically at the front end of the threaded connection sleeve, and a trapezoidal relief seam is formed between the two arc-shaped clips. The inner side of the arc-shaped clips is also provided with a helical stop protrusion. The limit protrusion is used in cooperation with the micro-drill bit; and a tightening nut is also arranged on the drill rod, and the tightening nut is used in cooperation with the collet.

Preferably, the height adjustment mechanism includes an adjustment dial, an adjustment rod and a turntable, the adjustment rod is a threaded rod and is threadedly connected with the top plate, the adjustment dial and the turntable are respectively arranged at the upper and lower ends of the adjustment rod, In addition, an adjusting handle is arranged on the adjusting disc, the adjusting rod is rotatably connected to the connecting plate through the second bearing, and the rotating disc is used in cooperation with the slot provided on the inner side of the connecting plate.

Preferably, the bottom plate is connected to the connecting column through a limiting hole, and a support ring is provided on the lower side of the bottom plate, and the specimen fixing mechanism is arranged on a positioning plate at the upper center of the bottom plate.

Preferably, the test piece fixing mechanism includes a test piece plate, a mounting base, a connecting shaft, a crank arm, a pressing support, a fixed plate and an adjustment piece, a support column is arranged at the center of the bottom plate, and the test piece The plate is set on the top of the support column and used in conjunction with the test piece. The adjustment piece is movably sleeved on the support column and used in conjunction with the positioning cylinder set on the positioning plate. One end of the connecting shaft is connected to the The positioning groove provided on the adjustment part is connected, the other end of the connecting shaft is hinged with one end of the crank arm, and the crank arm is rotatably arranged between two mounting seats arranged symmetrically, and the other end of the crank arm is connected to the pressing support It is hingedly connected, and the fixed plate is arranged on the pressing support and used in conjunction with the test piece.

Preferably, the adjustment member is movably arranged on the upper side of the positioning cylinder, and a rubber seal is embedded inside the adjustment member, and the rubber seal is movably connected with the support column through a sealing ring, and the lower end of the rubber seal is limited to The positioning disc extends into the inner cavity of the positioning cylinder and moves up and down along the inner cavity of the positioning cylinder. The positioning cylinder is also provided with a pressure hole, which communicates with the inner cavity of the rubber seal , and the other end of the pressure hole is connected to the control box of the host computer through a stop valve.

The beneficial effects of the present invention are: the present invention discloses a rock drillability tester. Compared with the prior art, the present invention has the following improvements:

(1) The present invention has designed a kind of rock drillability tester, and described rock drillability tester comprises control unit action unit, and control unit is connected with action unit by wire, controls action unit work; Wherein described action unit is The rock drilling pressure device, and the action unit is the rock drilling pressure device, which is equipped with a height adjustment mechanism, a specimen fixing mechanism and a drilling component. When in use, the rock drilling pressure device can be controlled by the host computer control box to perform drilling pressure on the rock. , and then use the high-precision depth displacement sensor to test the time corresponding to the real-time drilling depth, and then determine the drillability level of the rock, which can accurately complete the task of grading the drillability of the rock, and has the advantages of simple use and automatic control of drilling The advantages of process and high test accuracy;

(2) When the height adjustment mechanism is in use, according to the requirements of rock specimens of different sizes and specifications, the height of the overall pressure-on-bit test mechanism can be adjusted by manually turning the adjustment disc, so that it is convenient for drilling experiments on rock specimens , the adjustment is flexible and convenient, and it can be used for drilling with multi-specification rock samples;

(3) The pressure-on-drilling test mechanism can use the industry standard (SY/T5462-2000) to give the drill bit a stable static load pressure through the hydraulic cylinder, and then use the motor to drive the micro-drill bit to perform automatic drilling on the formation rock sample. The high-precision variable speed computer control software controls the work of the servo motor, and then uses the high-precision depth displacement sensor to test the time corresponding to the real-time drilling depth, and then determines the drillability level of the rock, and accurately completes the drillability of the rock. graded tasks;

(4) When the drilling assembly is in use, the drill bit can be quickly disassembled and installed, which is convenient for timely replacement of different types of micro drill bits, which can save time and effectively improve work efficiency.

Description of drawings

Fig. 1 is a schematic structural view of a rock drillability tester of the present invention.

Fig. 2 is a structural schematic diagram of the weight-on-bit test mechanism of the present invention.

Fig. 3 is a cross-sectional view of the weight-on-bit test mechanism of the present invention.

Fig. 4 is a schematic structural view of the fixing plate of the present invention.

Fig. 5 is a schematic structural diagram of a position-limiting fixture of the present invention.

Fig. 6 is a cross-sectional view of the transfer connector of the present invention.

Fig. 7 is a structural schematic diagram of the height adjustment mechanism of the present invention.

Fig. 8 is a cross-sectional view of the drilling assembly of the present invention.

Fig. 9 is a schematic structural view of the collet of the present invention.

Fig. 10 is a schematic structural diagram I of the specimen fixing mechanism of the present invention.

Fig. 11 is a schematic structural view II of the specimen fixing mechanism of the present invention.

Fig. 12 is a cross-sectional view of the specimen fixing mechanism of the present invention.

Fig. 13 is a partial enlarged view of the specimen fixing mechanism A of the present invention.

Fig. 14 is a schematic structural view of the crank arm of the present invention.

Among them: 1. Weight-on-bit test mechanism, 11. Fixed plate, 111. Adjusting groove, 12. Connecting plate, 13. Hydraulic cylinder, 14. Limiting fixture, 141. Arc-shaped limiting plate, 142. Supporting plate, 143 .Threaded connecting rod, 144. Clamping nut, 15. Transition connector, 151. First clamping groove, 152. Second clamping groove, 153. First bearing, 16. Second driven gear, 17. The first drive gear, 18. guide sleeve, 2. bottom plate, 21. limit hole, 22. support ring, 3. middle plate, 31. middle plate socket hole, 4. top plate, 5. connecting column, 6. Drill pipe, 61. Installation cavity, 7. Height adjustment mechanism, 71. Adjustment disc, 72. Adjustment handle, 73. Adjustment rod, 74. Second bearing, 75. Turntable, 8. Specimen fixing mechanism, 81. Positioning disc, 811. Positioning cylinder, 812. Pressure hole, 82. Casing, 83. Specimen plate, 84. Mounting seat, 85. Coupling shaft, 86. Crank arm, 87. Compression support, 871. Fixing Disc, 88. Adjusting part, 881. Locating groove, 89. Support column, 891. Rubber seal, 892. Seal ring, 9. Drilling component, 91. Micro drill bit, 92. Collet, 921. Threaded connection sleeve , 93. Arc-shaped clip, 931. Limiting protrusion, 94. Top tightening nut, 95. Tension screw, 96. The third bearing, 97. The third helical gear, 98. The fourth helical gear, 99. Hexagon Card slot, 90. hexagonal insert rod, 10. upper computer control box, 101. test piece.

detailed description

In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Referring to a rock drillability tester shown in accompanying drawings 1-14, it includes a control unit action unit, the control unit is connected with the action unit through wires and wire tubes, and the action unit is controlled by the control unit to work during use;

The control unit is an upper computer control box 10, the input end of the upper computer control box 10 is connected with the booster pump and the power supply box, and the upper computer control software is embedded in the upper computer control box 10 to control the action unit Work;

The action unit is a rock drilling pressure device, including a bottom plate 2, a middle plate 3, a top plate 4 and a connecting column 5, and the connecting column 5 passes through the middle plate 3 to connect the bottom plate 2 with the top plate 4, wherein the middle plate The plate 3 is movably arranged on the connecting column 5, and is connected with the top plate 4 through the height adjustment mechanism 7. When in use, the relative distance between the middle platform 3 and the top plate 4 is adjusted through the height adjustment mechanism 7, and the middle platform 3 is set There is a weight-on-drilling experiment mechanism 1 for a rock test block 101, the base plate 2 is arranged at the lower end of the connecting column 5, and is fixedly connected with the connecting column 5, the base plate 2 is provided with a specimen fixing mechanism 8, and the The specimen fixing mechanism 8 is arranged directly below the weight-on-bit testing mechanism 1 and is used in conjunction with the specimen 101 to fix the specimen 101 .

Preferably, in order to facilitate the drilling weight of the rock test piece 101, the described drilling weight test mechanism 1 includes an L-shaped fixed plate 11, a connecting plate 12, a limit fixture 14 and a drilling weight assembly, and the fixed plate 11 is connected by a bolt Symmetrically installed on the middle platform 3, the connecting plate 12 is installed between the two fixed plates 11 by bolts, and is used in conjunction with the height adjustment mechanism 7 to adjust the height of the overall pressure-on-drilling experiment mechanism 1; The position fixing member 14 includes an arc-shaped limiting plate 141 and a threaded connecting rod 143, the threaded connecting rod 143 is arranged on the back side of the arc-shaped limiting plate 141, and passes through the adjusting groove 111 provided on the L-shaped fixing plate 11 Used in conjunction with the fastening nut 144, that is, through the cooperative use of the fastening nut 144 and the threaded connecting rod 143, the limit fixture 14 is connected to the fixed plate 11, and the lower side of the arc-shaped limit plate 141 is also provided with a bracket Plate 142. The supporting plate 142 is used in conjunction with the drilling weight assembly to support the hydraulic cylinder 13 of the drilling weight assembly.

Preferably, the drill pressure assembly includes a hydraulic cylinder 13, a transfer connector 15, a motor 17 and a drill rod 6, and the hydraulic cylinder 13 is installed between two symmetrically arranged limit fixtures 14, and is controlled by the host computer. control box 10, and the end of the piston rod of the hydraulic cylinder 13 is rotationally connected with the drill pipe 6 through the transfer connector 15, that is, the hydraulic cylinder 13 drives the drill rod 6 to move up and down, and the motor 17 is fixedly arranged on the transfer connector 15 One side, and the power output end of the motor 17 is provided with a first drive gear 17, and the first drive gear 17 is in mesh with the second driven gear 16 arranged at the end of the drill rod 6, that is, when in use, the motor 17 Drive the drill rod 6 to rotate, the drill rod 6 passes through the middle plate 3 through the guide sleeve 18, the guide sleeve 18 plays a guiding role, and the lower end of the drill rod 6 is provided with a drilling assembly 9, the drill The inlet assembly 9 is used in conjunction with the test piece 101.

Preferably, in order to facilitate the use of the transfer connector 15 to connect the limit fixture 14 to the drill pipe 6, the transfer connector 15 is symmetrically provided with a first engaging groove 151 and a second engaging groove 152, wherein The first clamping groove 151 is connected with the piston rod of the hydraulic cylinder 13 through a connecting pin, the second clamping groove 152 is provided with a first bearing 153, and the drill pipe 6 is connected to the second clamping groove through the first bearing 153 152 rotating connections.

Preferably, in order to facilitate the drilling of the drill into the test piece 101, the drilling assembly 9 includes a micro-drill 91 and a drill installation mechanism, and the micro-drill 91 is installed on the front end of the drill rod 6 through the drill installation mechanism, and the drill The mounting mechanism includes a collet 92, a tension screw 95, a third helical gear 97 and a fourth helical gear 98. The collet 92 is movably installed in the installation cavity 61 at the front end of the drill rod 6, and the rear end of the collet 92 is connected to the The tightening screw 95 is threaded, and the collet 92 is pulled to move along the installation cavity 61 by rotating the tightening screw 95. The tightening screw 95 is installed in the internal cavity of the drill rod 6 through the third bearing 96, and the third The helical gear 97 is mounted on the tail end of the tightening screw 95 and meshes with the fourth helical gear 98. The fourth helical gear 98 is installed in the drill rod 6 through a connecting rod and a bearing, and is arranged on the fourth helical gear 98. There is a hexagonal slot 99, and the hexagonal slot 99 is used in conjunction with the hexagonal insertion rod 90 arranged on the adjustment rod, that is, when adjusting, the hexagonal insertion rod 90 is inserted into the hexagonal slot 99 and rotated so that the fourth The helical gear 98 rotates, and the engagement force between the fourth helical gear 98 and the third helical gear 97 is used to make the tightening screw 95 drive the collet 92 to move along the installation cavity 61 to realize the clamping of the collet 92 to the micro drill bit 91. Tight and secure.

Preferably, the installation cavity 61 is a trapezoidal installation groove with a large opening and a small interior. The collet 92 includes a threaded connection sleeve 921 and an arc clip 93. The threaded connection sleeve 921 is connected to the tension screw 95 Used together, the arc-shaped clips 93 are symmetrically arranged on the front end of the threaded connection sleeve 921, and a trapezoidal relief seam 922 is formed between the two arc-shaped clips 93 for clamping. To further play a clamping role, a helical stop protrusion 931 is also provided on the inner side of the arc clip 93, and the stop protrusion 931 is used in conjunction with the micro drill bit 91; and on the drill rod 6 A top tightening nut 94 is also provided, and the top tightening nut 94 is used in conjunction with the collet 92 to adjust the distance between the two arc clips 93 in advance according to the micro drill bits 91 of different specifications. , making it suitable for micro drill bits 91 of different specifications.

Preferably, the height adjustment mechanism 7 includes an adjustment disc 71, an adjustment rod 73 and a turntable 75, the adjustment rod 73 is a threaded rod, and is threadedly connected with the top plate 4, and the adjustment disc 71 and the turntable 75 are respectively arranged on the adjustment The upper and lower ends of the rod 73, and an adjustment handle 72 is provided on the adjustment disc 71, the adjustment rod 73 is rotationally connected with the connecting plate 12 through the second bearing 74, and the rotating disc 75 is connected with the connecting plate 12 The inside draw-in slot is used in conjunction, that is, by turning the adjusting disc 71 , the connecting plate 12 is pulled by the adjusting rod 73 to move in the vertical direction, and the relative distance between the middle platform 3 and the top plate 4 is adjusted.

Preferably, the base plate 2 is fixedly connected to the connecting column 5 through the limiting hole 21, and a support ring 22 is provided on the lower side of the base plate 2, and the specimen fixing mechanism 8 is arranged at the center position of the upper side of the base plate 2. On the positioning plate 81.

In order to fix the test piece 101 during the drilling process, the test piece fixing mechanism 8 includes a test piece plate 83, a mounting base 84, a shaft 85, a crank arm 86, a pressing support 87, a fixed plate 871 and Adjusting member 88, the center of the bottom plate 2 is provided with a support column 89, the test piece disk 83 is arranged on the top of the support column 89, and used in conjunction with the test piece 101 to support the test piece 101, the adjustment The member 88 is movably sleeved on the support column 89, and is used in cooperation with the positioning cylinder 811 arranged on the positioning plate 81. One end of the connecting shaft 85 is hingedly connected with the positioning groove 881 arranged on the adjusting member 88 through a hinge shaft. The other end of the connecting shaft 85 is hinged with one end of the crank arm 86, and the crank arm 86 is rotatably arranged between two mounts 84 arranged symmetrically, and the other end of the crank arm 86 is hingedly connected with the pressing support 87, so that The fixed discs 871 are arranged on the pressing support 87 and used in conjunction with the test piece 101 , and the test piece 101 is clamped and fixed by using three fixed discs 871 distributed in equiangular triangles.

Preferably, the adjustment member 88 is movably arranged on the upper side of the positioning cylinder 811, and a rubber seal 891 is embedded inside the adjustment member 88, and the rubber seal 891 is movably connected with the support column 89 through a seal ring 892 , the lower limit plate of the rubber seal 891 extends into the inner cavity of the positioning cylinder 811, and moves up and down along the inner cavity of the positioning cylinder 811 under the action of high pressure, and the positioning cylinder 811 is also provided with a pressurized Hole 812, the pressurizing hole 812 communicates with the inner cavity of the rubber seal 891, and is used to pressurize the inside of the rubber seal 891, so that the rubber seal 891 pushes the adjustment member 88 upwards to form an equiangular triangle The distributed fixed disks 871 move toward each other to realize the clamping of the test piece 101, and in order to control the pressurized air pressure, the other end of the pressurized hole 812 is connected with the upper computer control box 10 through a shut-off valve.

Preferably, the lower end of the drill rod 6 is also provided with a displacement sensor, and the displacement sensor is connected with the host computer control box 10 for real-time monitoring of the drilling depth of the micro-drill 91 .

The using method of rock drillability tester of the present invention comprises:

Before use: replace the drill bit 91 with the required specification;

When in use: first, according to the experimental requirements, place the test piece 101 on the test piece plate 83, and inject gas into the inside of the rubber seal 891 through the pressurization hole 812, so that the rubber seal 891 pushes the adjustment piece 88 upward to Make the fixed disks 871 distributed in an equiangular triangle move toward each other to realize the clamping of the test piece 101; then, by rotating the adjusting disk 71, the connecting plate 12 is pulled to move in the vertical direction through the adjusting rod 73, and the centering table 3 and the top plate 4 to adjust the relative distance; finally control the hydraulic cylinder 13 and the motor 17 to work, use the hydraulic cylinder 13 to provide the static load pressure, and the motor 17 to provide the drilling speed to drive the drill pipe 6 to rotate, and use the drill bit 91 to pair the test piece 101 is drilled, and the drilling time and drilling depth are recorded, and then the drillability grade value of the test piece 101 is determined according to the drilling time and drilling depth.

The technical parameters of the rock drillability tester of the present invention include:

(1) Supply voltage: 220V; 50Hz; power 2KW;

(2) Stepless speed regulation: 0~100mm/min (factory calibration 55r/min±1r/min);

(3) Specimen size: side length 100×100mm; φ25×80mm; other specifications optional;

(4) The type of micro-drill 91: micro-drill 1, which is composed of 8 and 9 spacers on the drill body with the blade shaft, and the diameter after assembly is 31.75mm; micro-drill 2: PDC drill is two pieces of PDC The composite sheet is symmetrically clamped on the rigid body of the drill bit, and the diameter after assembly is 32mm;

(5) Static and dynamic load: 0 ~ 10KN can be adjusted arbitrarily (factory calibration 890N±10N) (PDC drill pressure factory calibration 500N±20N);

(6) Drilling depth displacement: 0~20mm, precision 0.01mm;

(7) Weight-on-bit torque rotation sensor: 0～100N·m±0.1N.m (this function is optional).

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A rock drillability tester, characterized in that: it comprises a control unit action unit, the control unit is connected with the action unit, and the control action unit works; The control unit is an upper computer control box (10), and the input end of the upper computer control box (10) is connected with a booster pump and a power supply box; The action unit is a rock drilling pressure device, including a bottom plate (2), a middle plate (3), a top plate (4) and a connecting column (5), and the connecting column (5) passes through the middle plate (3) to connect The bottom plate (2) is connected with the top plate (4), wherein the middle platform (3) is movably arranged on the connecting column (5), connected with the top plate (4) through a height adjustment mechanism (7), and on the middle platform ( 3) A weight-on-drilling test mechanism (1) is arranged on it, the bottom plate (2) is arranged at the lower end of the connecting column (5), and is fixedly connected with the connecting column (5), and a test piece is arranged on the bottom plate (2) A fixing mechanism (8), the test piece fixing mechanism (8) is arranged directly under the drilling weight test mechanism (1), and is used in conjunction with the test piece (101). 2. A rock drillability tester according to claim 1, characterized in that: the weight-on-bit test mechanism (1) comprises an L-shaped fixing plate (11), a connecting plate (12), a limit fixing piece (14) and drilling pressure assembly, the fixed plate (11) is symmetrically installed on the middle platform (3) by bolts, and the connecting plate (12) is installed between the two fixed plates (11) by bolts, And used in conjunction with the height adjustment mechanism (7); the limit fixture (14) includes an arc limit plate (141) and a threaded connecting rod (143), and the threaded connecting rod (143) is arranged on the arc limit The back side of the position plate (141), and pass through the adjustment groove (111) provided on the L-shaped fixed plate (11) to cooperate with the fastening nut (144), the lower part of the arc-shaped limit plate (141) A supporting plate (142) is also provided on the side, and the supporting plate (142) is used in cooperation with the drilling weight assembly. 3. A rock drillability tester according to claim 2, characterized in that: said drilling pressure assembly includes a hydraulic cylinder (13), an adapter (15), a motor (17) and a drill rod (6), the hydraulic cylinder (13) is installed between the two limit fixtures (14) symmetrically arranged, controlled by the host computer control box (10), and the end of the piston rod of the hydraulic cylinder (13) is passed through the transfer The connecting piece (15) is rotatably connected with the drill pipe (6), the motor (17) is fixedly arranged on one side of the transfer connecting piece (15), and a first drive gear is arranged at the power output end of the motor (17) (17), the first drive gear (17) meshes with the second driven gear (16) arranged at the end of the drill rod (6), and the motor (17) drives the drill rod (6) to rotate, and the drill The rod (6) passes through the middle platform (3) through the guide sleeve (18), and a drilling assembly (9) is arranged at the lower end of the drill rod (6). 4. A rock drillability tester according to claim 3, characterized in that: said transition connector (15) is symmetrically provided with a first engaging groove (151) and a second engaging groove (152), wherein the first clamping groove (151) is connected with the piston rod of the hydraulic cylinder (13) through a connecting pin, and a first bearing (153) is arranged in the second clamping groove (152), and the drill The rod (6) is rotatably connected to the second locking groove (152) through the first bearing (153). 5. A kind of rock drillability testing instrument according to claim 3, is characterized in that: described drilling assembly (9) comprises micro-drill (91) and drill installation mechanism, and described micro-drill (91) passes The drill bit installation mechanism is installed on the front end of the drill rod (6), and the drill bit installation mechanism includes a collet (92), a tension screw rod (95), a third helical gear (97) and a fourth helical gear (98). The collet (92) is movably installed in the installation cavity (61) at the front end of the drill rod (6), and the rear end of the collet (92) is threadedly connected with the tension screw (95), and the tension screw (95) passes through The third bearing (96) is installed in the internal cavity of the drill rod (6), and the third helical gear (97) is installed at the tail end of the tension screw (95) and meshed with the fourth helical gear (98) , the fourth helical gear (98) is installed in the drill rod (6) through a connecting rod and a bearing, and a hexagonal slot (99) is provided on the fourth helical gear (98), and the hexagonal slot (99 ) is used in conjunction with the hexagonal insert rod (90) arranged on the adjusting rod. 6. A rock drillability tester according to claim 5, characterized in that: the installation cavity (61) is a trapezoidal installation groove with a large opening and a small interior, and the collet (92) includes a screw thread Connect the sleeve (921) and the arc-shaped clip (93), the threaded connection sleeve (921) is used in conjunction with the tension screw (95), and the arc-shaped clip (93) is symmetrically arranged on the threaded connection sleeve (921), and form a trapezoidal relief seam (922) between two arc-shaped clips (93), the inner side of the arc-shaped clip (93) is also provided with a helical stop protrusion ( 931), the position-limiting protrusion (931) is used in conjunction with the micro-drill (91); Collet (92) is used in conjunction. 7. A kind of rock drillability tester according to claim 2, characterized in that: the height adjustment mechanism (7) comprises an adjustment disc (71), an adjustment rod (73) and a rotating disk (75), the The adjusting rod (73) is a threaded rod, and is threadedly connected with the top plate (4). An adjustment handle (72) is arranged on the adjustment disc (71), and the adjustment rod (73) is rotationally connected with the connecting plate (12) through the second bearing (74), and the rotating disc (75) is connected with the connecting plate (12). ) with the card slot on the inside. 8. A rock drillability tester according to claim 1, characterized in that: the base plate (2) is connected to the connecting column (5) through a limiting hole (21), and the base plate (2) A supporting ring (22) is provided on the underside of the bottom plate (2), and the test piece fixing mechanism (8) is arranged on the positioning plate (81) at the center position of the upper side of the bottom plate (2). 9. A rock drillability tester according to claim 8, characterized in that: said test piece fixing mechanism (8) comprises a test piece plate (83), a mount (84), a coupling shaft (85 ), curved arm (86), pressing support (87), fixed plate (871) and adjustment piece (88), the center of the base plate (2) is provided with a support column (89), and the test piece plate (83) is set on the top of the support column (89) and is used in conjunction with the test piece (101). The upper positioning cylinder (811) is used in conjunction with one end of the connecting shaft (85) to be connected to the positioning groove (881) provided on the adjustment piece (88) through a hinge shaft, and the other end of the connecting shaft (85) to be connected to the crank arm One end of (86) is hinged, and described crank arm (86) is rotatably arranged between two installation seats (84) that are arranged symmetrically, and the other end of crank arm (86) is hingedly connected with pressing support (87), The fixed plate (871) is arranged on the pressing support (87) and used in conjunction with the test piece (101). 10. A rock drillability tester according to claim 9, characterized in that: the adjustment member (88) is movably arranged on the upper side of the positioning cylinder (811), and the adjustment member (88) A rubber seal (891) is embedded in the inner side, and the rubber seal (891) is flexibly connected with the support column (89) through a seal ring (892), and the lower limit plate of the rubber seal (891) extends to the positioning cylinder ( 811), and move up and down along the inner cavity of the positioning cylinder (811), the positioning cylinder (811) is also provided with a pressure hole (812), the pressure hole (812) and The internal cavity of the rubber seal (891) communicates, and the other end of the pressurizing hole (812) is connected with the upper computer control box (10) through a shut-off valve.

Images