CN217006425U

CN217006425U - Concrete core drilling and sampling tool

Info

Publication number: CN217006425U
Application number: CN202123436662.8U
Authority: CN
Inventors: 张小波; 谢德蓉
Original assignee: Mcc Testing And Certification Shanghai Co ltd; Central Research Institute of Building and Construction Co Ltd MCC Group; China Jingye Engineering Corp Ltd
Current assignee: Mcc Testing And Certification Shanghai Co ltd; Central Research Institute of Building and Construction Co Ltd MCC Group; China Jingye Engineering Corp Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-07-19
Anticipated expiration: 2031-12-30

Abstract

The application relates to a concrete core drilling and sampling tool, which relates to the technical field of concrete sampling and comprises a fixed plate and a guide rail, wherein the fixed plate is used for fixedly arranging the concrete core drilling and sampling tool on a concrete sample to be sampled; a transmission mechanism for driving the sampling motor to slide along the guide rail is arranged between the output shaft of the sampling motor and the guide rail; the concrete core drilling and sampling tool also comprises a control mechanism for controlling the motion state of the sampling motor. This application has the effect that improves concrete core sample efficiency and convenience.

Description

Concrete core drilling and sampling tool

Technical Field

The application relates to the technical field of concrete sampling, in particular to a concrete core sampling tool.

Background

The core drilling sampling is a simple, convenient and visual detection method for local damage with high detection precision, and is widely applied to on-site concrete quality detection. The core drilling sampling generally reflects the internal quality of concrete, and the internal quality of concrete is a main factor influencing the strength of concrete, so the core drilling sampling is an important detection means for evaluating the quality of concrete in the detection industry.

At present, the concrete core drilling and sampling are mainly carried out through manually operating a concrete core drilling and sampling machine, the sampling machine pushes a drilling machine drill bit which rotates at a high speed to extend into the concrete through manual operation in the sampling process, and drilled concrete blocks are taken out to finish the core drilling and sampling work.

In view of the above-mentioned related technologies, the inventor believes that, although the existing sampling tool is original in method, economical, convenient to operate, and capable of solving most of the on-site sampling processes, the existing sampling tool consumes much time and energy, has low sampling efficiency, and is clumsy particularly in sampling of some special parts, for example, in high altitude or in a specific beam and plate area, the core sample cannot be taken out for a long time because sampling personnel do not have a proper stress point and the sampling work is not smooth due to the fear of the high altitude.

SUMMERY OF THE UTILITY MODEL

In order to improve efficiency and the convenience of concrete core sample, this application provides a concrete core sampling tool.

The application provides a concrete core sampling tool adopts following technical scheme:

a concrete core drilling and sampling tool comprises a fixing plate and a guide rail, wherein the fixing plate is used for fixedly arranging the concrete core drilling and sampling tool on a concrete sample to be sampled, the guide rail is fixedly connected with the fixing plate and used for bearing a sampling motor, the guide rail is provided with the sampling motor in a sliding manner, and an output shaft of the sampling motor is coaxially and detachably provided with a drill bit used for drilling a concrete block;

a transmission mechanism for driving the sampling motor to slide along the guide rail is arranged between the output shaft of the sampling motor and the guide rail;

the concrete core drilling and sampling tool further comprises a control mechanism for controlling the motion state of the sampling motor.

Through adopting above-mentioned technical scheme, when needs bore the core sample to the concrete, fix the drill bit of suitable size on the sample motor earlier, rethread fixed plate and guide rail set up whole instrument is fixed on sampling concrete test piece. Then, the sampling motor is controlled to rotate through the control mechanism, and the sampling motor rotates to drive the drill bit to rotate at a high speed. Meanwhile, the sampling motor is driven by the transmission mechanism to slide on the guide rail towards the concrete, and the drill bit is made to drill into the concrete. After the concrete is drilled to a proper depth, the sampling motor is controlled to rotate reversely, the drill bit is pulled out, and finally the sampling personnel takes out the concrete sampling block to complete the sampling operation. Whole concrete core sampling process tightly needs the sampling personnel to operate control mechanism, need not the manual work and promotes the sampling motor and sample to the efficiency and the convenience of concrete core sampling have been improved.

Optionally, the sampling motor is configured as a dual-output shaft motor, and output shafts at two ends of the sampling motor are respectively configured as a first output shaft and a second output shaft;

the double-output-shaft motor is connected to the guide rail in a sliding mode through a sliding block and slides along the axial direction of the guide rail;

the drill bit is detachably arranged on the first output shaft, and the transmission mechanism is arranged between the second output shaft and the guide rail in a transmission mode.

Through adopting above-mentioned technical scheme, driving motor passes through first output shaft drive drill bit, through second output shaft drive self and drill bit removal to realize the operation of automatic drilling concrete sampling piece.

Optionally, a rack is arranged on the guide rail along the axial direction of the guide rail;

the second output shaft is of a worm structure, the transmission mechanism comprises a box body, a driving wheel, a planetary wheel and a driven wheel, the driving wheel, the planetary wheel and the driven wheel are rotatably arranged in the box body, the driving wheel is in transmission connection with the second output shaft, the driven wheel is in transmission connection with the driving wheel through the planetary wheel, and the driven wheel is meshed with the rack.

Through adopting above-mentioned technical scheme, drive mechanism plays the effect of reducing speed, improvement moment of torsion to can make the drill bit produce enough big drive power, promote the drill bit and get the sampling by boring.

Optionally, a grinding and cutting mechanism is arranged on the first output shaft, and the grinding and cutting mechanism comprises a telescopic part, a traction part and a grinding and cutting part; the telescopic piece is fixedly arranged on the first output shaft and is electrically connected to the control mechanism, two ends of the traction piece are hinged to the telescopic piece and the grinding piece, and the grinding piece penetrates through the peripheral side wall of the drill bit and is hinged to the drill bit.

Through adopting above-mentioned technical scheme, when the drill bit bored to suitable degree of depth, control electric telescopic handle stretched out, pull a drive and grind and cut a rotation, will grind and cut a rotation to the sampling piece looks butt of drill bit inside wall, grind and cut a quick grinding and cutting to concrete sampling piece on high-speed drill bit, grind and cut the completion back, driving motor reversal, extract and bore the core. The ground part of the concrete sampling block is easy to break, so that the sampling block can be taken out easily by the concrete core drilling sampling tool.

Optionally, the abrasive cutting mechanism is provided in a plurality, and the abrasive cutting mechanism is arranged around the peripheral side wall of the drill bit in a plurality.

Through adopting above-mentioned technical scheme, a plurality of abrasive cutting mechanisms accelerate abrasive cutting efficiency to sampling efficiency has further been improved.

Optionally, the control mechanism comprises a control unit,

the input module is arranged as a touch panel and outputs an instruction signal based on the operation of a sampling person;

the detection module is configured as a displacement sensor, is arranged on the sampling motor and is used for detecting the moving distance of the sampling motor and outputting a displacement signal;

the processing module is set as a single chip microcomputer, is electrically connected with the signal output ends of the input module and the detection module, receives and responds to the instruction signal and outputs a control signal, and simultaneously receives and responds to the displacement signal and outputs a trigger signal;

and the execution module is electrically connected with the processing module and receives and responds to the control signal and the trigger signal.

Through adopting above-mentioned technical scheme, input module is convenient for the sampling personnel to select the sampling depth and drive the sample motor and rotate, and detection mechanism is located the distance to the sample motor and detects, and when the displacement distance reached the sampling depth, drive electric telescopic handle stretched out to grind the cutting member and grind the cutting to concrete sampling piece. After the grinding and cutting are finished, the electric telescopic rod is retracted and the driving motor is controlled to rotate reversely, the drill bit is pulled out, and the concrete sampling block is taken out.

Optionally, the execution module includes at least one of,

the motor driver is electrically connected to the signal output end of the processing module, receives and responds to the control signal and is used for controlling the motion state of the sampling motor;

and the telescopic rod driver is electrically connected to the signal output end of the processing module, receives and responds to the trigger signal and is used for controlling the telescopic state of the electric telescopic rod.

Optionally, the detection module includes a first displacement sensor and a second displacement sensor, the first displacement sensor is disposed on the sampling motor, and the second displacement sensor is disposed on the electric telescopic rod.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the core sample is bored to the concrete to needs, fix the drill bit of suitable size on the sample motor earlier, the rethread fixed plate sets up whole instrument fixedly on the sample concrete. Then, the sampling motor is controlled to rotate through the control mechanism, and the sampling motor rotates to drive the drill bit to rotate at a high speed. Meanwhile, the sampling motor is driven by the transmission mechanism to slide on the guide rail towards the concrete, and the drill bit is made to drill into the concrete. After the concrete is drilled to a proper depth, the sampling motor is controlled to rotate reversely, the drill bit is pulled out, and finally the sampling personnel takes out the concrete sampling block to complete the sampling operation. The whole concrete drill core sampling process needs sampling personnel to operate the control mechanism, and a sampling motor does not need to be pushed manually for sampling, so that the efficiency and the convenience of concrete drill core sampling are improved;

2. the transmission mechanism has the functions of reducing the speed of the driving motor and improving the torque, so that the drill bit can generate enough driving force to push the drill bit to drill and sample;

3. when the drill bit drills to a proper depth, the driving planetary wheel enables the transmission mechanism to be separated from transmission, the electric telescopic rod is controlled to stretch out, the traction part drives the grinding and cutting part to rotate, the grinding and cutting part rotates to be abutted to the sampling block on the inner side wall of the drill bit, the grinding and cutting part quickly grinds and cuts the concrete sampling block on the high-speed drill bit, after grinding and cutting are completed, the telescopic rod is retracted, the planetary wheel is controlled to return to the meshing position, the driving motor is enabled to rotate reversely, and the drill core is pulled out. The concrete sampling block is easy to break at the grinding and cutting part, so that sampling personnel can take out the sampling block easily.

Drawings

FIG. 1 is a partial cross-sectional view of a concrete core-drilling sampling tool with a protruding grinding and cutting mechanism and a transmission mechanism according to an embodiment of the present application.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is a block diagram of a control mechanism according to an embodiment of the present invention.

Description of reference numerals: 1. a fixing plate; 2. a guide rail; 3. a drill bit; 4. a sampling motor; 5. a transmission mechanism; 51. a box body; 52. a driving wheel; 53. a planet wheel; 54. a driven wheel; 6. a grinding and cutting mechanism; 61. an electric telescopic rod; 62. a traction member; 63. grinding and cutting the workpiece; 7. a control mechanism; 71. an input module; 72. a detection module; 721. a first displacement sensor; 722. a second displacement sensor; 73. a processing module; 74. an execution module; 741. a motor driver; 742. a telescopic rod driver; 8. a rack; 9. drilling a cutter; 10. a slider; 11. a first output shaft; 12. a second output shaft; 13. embedding a groove; 14. a fixing member; 15. the hole is rotated.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses concrete core sampling tool. Referring to fig. 1 and 2, a concrete core drilling and sampling tool comprises a fixing plate 1, a guide rail 2, a drill bit 3, a sampling motor 4, a transmission mechanism 5, a grinding and cutting mechanism 6 and a control mechanism 7.

Fixed plate 1 sets up to square cast iron plate, and four bolt holes have evenly been seted up to fixed plate 1 corner department, and in the in-service use process, fixed plate 1 passes through expansion bolts to be fixed to be set up on the concrete that needs the sampling, still vertically is provided with a jack on fixed plate 1. The guide rail 2 is inserted into the insertion hole on the fixing plate 1 and fixed by a fixing bolt, the guide rail 2 is configured as a steel I-shaped rail in the embodiment, and a rack 8 is arranged on one side wall of the guide rail 2 close to the sampling motor 4 and the transmission mechanism 5. The drill bit 3 is a cylindrical opening and is evenly provided with a plurality of drill cutters 9 at the position of the opening, and the side wall of the drill bit 3 far away from the opening is provided with an internal thread for connecting an output shaft of the sampling motor 4.

The sampling motor 4 is arranged on the guide rail 2 in a sliding mode through a sliding block 10, the sampling motor 4 is configured into a double-output motor, output shafts at two ends of the sampling motor are configured into a first output shaft 11 and a second output shaft 12, external threads used for being connected with drill bits 3 of different models are arranged on the first output shaft 11, and the first output shaft 11 is coaxially arranged with the drill bits 3 through internal threads on the drill bits 3. The second output shaft 12 is provided as a worm construction.

The transmission mechanism 5 is arranged between the output shaft of the sampling motor 4 and the guide rail 2 in a transmission manner and is used for driving the sampling motor 4 to slide along the axial direction of the guide rail 2. The transmission mechanism 5 includes a case 51, and a driving wheel 52, a planetary wheel 53, and a driven wheel 54 rotatably disposed in the case 51, wherein the driving wheel 52, the planetary wheel 53, and the driven wheel 54 all rotate through a rotating bearing disposed on the case 51 and a rotating shaft penetrating through the rotating bearing. The drive pulley 52 is divided into an outer gear and an inner gear that are concentrically integrated, the outer gear being intermeshed with the turbine wheel of the second output shaft 12, and the inner gear being intermeshed with the planetary gear 53. The driven wheel 54 is larger in diameter than the planet wheels 53 and is in mesh with the planet wheels 53, the driven wheel 54 in turn being in mesh with the rack 8 on the guide rail 2. Thereby achieving the functions of speed reduction transmission and increasing transmission torque and pushing the transmission mechanism 5 and the sampling motor 4 to slide on the guide rail 2.

The grinding and cutting mechanism 6 comprises an electric telescopic rod 61, a traction piece 62 and a grinding and cutting piece 63. In this embodiment, two grinding and cutting mechanisms 6 are selected and symmetrically arranged on two sides of the drill 3. First output shaft 11 is located and is provided with circular platform between sample motor 4 and the drill bit 3, and the setting of the first output shaft 11 of circular platform perpendicular to and with first output shaft 11 synchronous revolution, the stiff end of two electric telescopic handle 61 passes through the fixed bolt fixed symmetry and sets up one side that circular platform is close to drill bit 3. The telescopic end of the electric telescopic rod 61 is arranged parallel to the axial direction of the drill bit 3. Two embedded grooves 13 are symmetrically arranged on the peripheral side wall of the drill bit 3, two traction pieces 62 are respectively movably arranged in the two embedded grooves 13, one end of each traction piece is hinged with a fixing piece 14 which is detachably and fixedly arranged at the telescopic end of the electric telescopic rod 61, and the other end of each traction piece is hinged with a grinding and cutting piece 63. The grinding and cutting part 63 is selected to be a hard diamond drill in the embodiment, a rotating hole 15 is formed in one end, away from the sampling motor, of the drill bit 3, the two inner embedded grooves 13, the grinding and cutting part 63 is rotatably arranged in the rotating hole 15 through a rotating shaft, and the rotating shaft is arranged close to the inner embedded grooves 13. When the electric telescopic rod 61 is in a contracted state, the grinding and cutting piece 63 is obliquely stored in the rotating groove. When the drill bit 3 drills to the depth required by sampling, the electric telescopic rod 61 is pushed out, the traction piece 62 drives the grinding and cutting piece 63 to rotate, the grinding and cutting piece 63 is abutted to the concrete test block in the drill bit 3, and the concrete test block is ground and cut under the pushing action of the drill bit 3 and the electric telescopic rod 61.

Referring to fig. 1 and 3, the control mechanism 7 includes an input module 71, a detection module 72, a processing module 73, and an execution module 74.

The input module 71 is provided as a touch panel, and in the present embodiment, the touch panel is provided on the housing of the sampling motor 4. In the using process, a sampling person can input a start-stop instruction and sampling depth data on the touch panel, and the touch panel converts the received start-stop instruction and sampling depth data into corresponding instruction signals and transmits the instruction signals to the processing module 73;

the detection module 72 includes a first displacement sensor 721 and a second displacement sensor 722. The first position sensor is mounted on the sampling motor 4, and is used for detecting the moving distance of the sampling motor 4 and generating a moving distance signal to be transmitted to the processing module 73. The second displacement sensor 722 is disposed on the electric telescopic rod 61, and is configured to detect the extension distance of the electric telescopic rod 61 and generate a corresponding extension distance signal.

The processing module 73 is configured as a single chip microcomputer, is electrically connected to the signal output terminals of the touch panel, the first displacement sensor 721 and the second displacement sensor 722, and receives and responds to the command signal, the movement distance signal and the extension distance signal.

The execution module 74 includes a motor driver 741 and a telescopic rod driver 742. The electric driver is arranged in the outer shell of the sampling motor 4, is electrically connected with the processing module 73 and the sampling motor 4, and is used for controlling the motion state of the sampling motor 4. The telescopic rod driver 742 is disposed within the circular platform and is electrically connected to the electric telescopic rod 61 and to the processing module 73 through an electrically conductive slip ring for controlling the extension and retraction of the electric telescopic rod 61.

In the actual use process, after the sampling tool is installed and fixed, sampling personnel input the required depth of sampling on the touch panel, then press the start option, and the sampling tool starts sampling work. The processing module 73 receives the sampling depth data and compares the sampling depth data with the moving distance signal, when the moving distance signal reaches the sampling depth data value, the processing module 73 controls the electric telescopic rod 61 to extend out, and the grinding and cutting piece 63 starts to grind and cut the concrete sampling block under the driving of the traction piece 62. Meanwhile, the second position sensor monitors the extending distance of the electric telescopic rod 61, and when the extending distance reaches a preset value, the grinding and cutting piece 63 is just in a state of being perpendicular to the side wall of the periphery of the drill bit 3. The processing module 73 controls the sampling motor 4 to rotate reversely, and the sampling motor 4 is houtouted and is driven by the vertically protruding grinding and cutting piece 63 to extract the concrete sampling block to finish sampling work.

The implementation principle of the concrete core sampling tool of the embodiment of the application is as follows: when core drilling and sampling are needed to be carried out on concrete, a drill bit 3 with a proper size is fixed on a sampling motor 4, and an electric telescopic upper telescopic end is connected with a fixing piece 14. And then the whole tool is fixedly arranged on the sampling concrete through the fixing plate 1. Then, the control mechanism 7 controls the sampling motor 4 to rotate, and the sampling motor 4 rotates to drive the drill bit 3 to rotate at a high speed. At the same time, the sampling motor 4 drives itself, via the transmission 5, to slide on the guide rail 2 towards the concrete and cause the drill 3 to drill into the concrete. After the drill bit reaches a proper depth, the sampling motor 4 is controlled to rotate reversely, the drill bit 3 and the concrete sampling block are pulled out, and finally the sampling personnel takes out the concrete sampling block to complete sampling operation. Whole concrete core sampling process tightly needs the sampling personnel to operate control mechanism 7, need not artifical promotion sample motor 4 and samples to the efficiency and the convenience of concrete core sample have been improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A concrete core drilling and sampling tool comprises a fixing plate (1) and a guide rail (2), wherein the fixing plate (1) is used for fixedly arranging the concrete core drilling and sampling tool on a concrete sample to be sampled, the guide rail (2) is fixedly connected with the fixing plate (1) and used for bearing a sampling motor (4), the guide rail (2) is provided with the sampling motor (4) in a sliding mode, and an output shaft of the sampling motor (4) is coaxially and detachably provided with a drill bit (3) used for drilling a concrete block;

the method is characterized in that: a transmission mechanism (5) for driving the sampling motor (4) to slide along the guide rail (2) is arranged between the output shaft of the sampling motor (4) and the guide rail (2);

the concrete core drilling and sampling tool also comprises a control mechanism (7) for controlling the motion state of the sampling motor (4).

2. A concrete core drilling and sampling tool according to claim 1, wherein: the sampling motor (4) is configured as a double-output-shaft motor, and output shafts at two ends of the sampling motor are respectively configured as a first output shaft (11) and a second output shaft (12);

the double-output-shaft motor is connected to the guide rail (2) in a sliding manner and slides along the axial direction of the guide rail (2);

the drill bit (3) is detachably arranged on the first output shaft (11), and the transmission mechanism (5) is arranged between the second output shaft (12) and the guide rail (2) in a transmission manner.

3. A concrete core drilling and sampling tool according to claim 2, wherein:

a rack (8) is arranged on the guide rail (2) along the axial direction thereof;

the second output shaft (12) is of a worm structure, the transmission mechanism (5) comprises a box body (51), a driving wheel (52), a planet wheel (53) and a driven wheel (54), the driving wheel (52) is rotatably arranged in the box body (51), the driving wheel (52) is connected to the second output shaft (12) in a transmission mode, the driven wheel (54) is connected to the driving wheel (52) through the planet wheel (53) in a transmission mode, and the driven wheel (54) is meshed with the rack (8).

4. A concrete core drilling and sampling tool according to claim 3, wherein: the first output shaft (11) is provided with a grinding and cutting mechanism (6), and the grinding and cutting mechanism (6) comprises an electric telescopic rod (61), a traction piece (62) and a grinding and cutting piece (63); the electric telescopic rod (61) is fixedly arranged on the first output shaft (11) and is electrically connected to the control mechanism (7), the traction piece (62) is parallel to the axial direction of the drill bit (3) and two ends of the traction piece are hinged to the telescopic end of the electric telescopic rod (61) and the grinding piece (63), and the grinding piece (63) penetrates through the peripheral side wall of the drill bit (3) and is hinged to the drill bit (3).

5. A concrete core-drilling sampling tool according to claim 4, wherein: the grinding and cutting mechanisms (6) are arranged in a plurality of numbers, and the grinding and cutting mechanisms (6) are arranged on the peripheral side wall of the drill bit (3) in a surrounding mode.

6. A concrete core drilling and sampling tool according to claim 4, wherein: the control mechanism (7) comprises a control device,

the input module (71) is arranged as a touch panel and outputs an instruction signal based on the operation of a sampling person;

the detection module (72) is arranged on the sampling motor (4) and the electric telescopic rod (61) and is used for detecting the moving distance of the sampling motor (4) and the extending distance of the electric telescopic rod (61) and outputting a moving distance signal and an extending distance signal;

the processing module (73) is set as a single chip microcomputer, is electrically connected with the signal output ends of the input module (71) and the detection module (72), receives and responds to the instruction signal, the moving distance signal and the extending distance signal and outputs a corresponding control signal;

and the execution module (74) is electrically connected to the processing module (73) and receives and responds to the control signal.

7. The concrete core-drilling sampling tool of claim 6, wherein: the execution module (74) includes a processor,

the motor driver (741) is electrically connected to the signal output end of the processing module (73) and is used for controlling the motion state of the sampling motor (4);

and the telescopic rod driver (742) is electrically connected to the signal output end of the processing module (73) and is used for controlling the telescopic state of the electric telescopic rod (61).

8. The concrete core-drilling sampling tool of claim 6, wherein: the detection module (72) comprises a first displacement sensor (721) and a second displacement sensor (722), the first displacement sensor (721) is arranged on the sampling motor (4), and the second displacement sensor (722) is arranged on the electric telescopic rod (61).