CN216771104U - Wall surface concrete quality testing is with sample drilling equipment - Google Patents

Abstract

The utility model discloses a sampling drilling device for wall concrete quality detection. , There is a pressure sensor on the drilling device, the pressure sensor is connected to a PLC control system, the PLC control system controls the drilling motor and the transmission motor, and the PLC control system sends the corresponding drilling motor and transmission motor according to the data of the pressure sensor. shift command. The device improves the accuracy of the drilling position and the overall equipment stability, and is a kind of sampling drilling hole for wall concrete quality detection, which is convenient for stable fixation with the wall surface, easy to control the drilling depth of the drill bit and the accuracy of the later sampling. device.

Description

A sampling drilling device for wall concrete quality detection

technical field

The utility model relates to the technical field of concrete quality detection, in particular to a sampling drilling device for wall concrete quality detection.

Background technique

Many buildings in life are mostly constructed of concrete made by mixing cement, sand, gravel, etc. with water. Because the quality of concrete is closely related to potential safety hazards, it is often necessary to use a sampling drilling device to drill and sample the concrete. in order to check its quality.

The existing sampling drilling device for wall concrete quality detection is generally inconvenient to stably fix with the wall surface, and it is inconvenient to control the depth of drilling by the drill bit, the accuracy of later sampling is low, and it is inconvenient for the wall surface of various heights. Therefore, we propose a sampling drilling device for wall concrete quality detection, so as to solve the above problems.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present utility model provides a sampling drilling device for concrete quality detection of building walls, so as to solve the problem of the existing sampling drilling device for wall concrete quality detection proposed in the above-mentioned background technology, which is generally inconvenient. Stable fixation with the wall, and it is inconvenient to control the depth of the drill bit, and the accuracy of later sampling is low.

For achieving the above object, the technical scheme adopted by the present utility model is:

It includes a frame body, a lifting device and a drilling device, wherein the lifting device is fixed at the bottom of the frame body, the lifting device includes a lifting motor, and the output shaft of the lifting motor is connected with a drilling device, which controls the up and down movement of the drilling device; the drilling device includes a drilling The hole motor, the transmission motor and the support, a drill bit is connected to the end of the output shaft of the drilling motor, and a transmission device is arranged between the output shaft of the transmission motor and the drilling motor to ensure that the transmission motor controls the horizontal movement of the drilling motor; the transmission motor and the support The seat is fixedly connected. There are horizontal through holes at the four corners of the support, and bolts are inserted into the through holes. The part of the bolt extending out of the support is sleeved with inner legs, and the inner legs are provided with outer legs, and the outer legs are fixed. On the support, the inner leg is connected with the bolt thread, and the end of the inner leg is equipped with a pressure sensor; the pressure sensor is connected with a PLC control system, and the PLC control system is respectively connected with the drilling motor and the transmission motor. Based on the sensor data, the corresponding speed change command is sent to the drilling motor and the transmission motor.

The beneficial effects of using the utility model are: the utility model increases the pressure sensor and the PLC control system, improves the drilling accuracy, facilitates stable fixing with the wall surface, facilitates the control of the depth of the drill bit drilling, and facilitates the control of the specific position of sampling , taking into account the possibility of unevenness on the wall, further ensuring the sampling accuracy after application.

Description of drawings

Fig. 1 is the front view structure schematic diagram of the utility model.

FIG. 2 is a schematic view of the front cross-sectional structure of the drilling device of the present invention.

FIG. 3 is a schematic top view sectional structure diagram of the drilling device of the present invention.

FIG. 4 is a partial structural schematic diagram of the outrigger structure of the present invention.

FIG. 5 is a schematic view of the structure of the drilling device from the right side of the present invention.

FIG. 6 is a schematic view of the left-side cross-sectional structure of the drilling device of the present invention.

FIG. 7 is a schematic diagram of a partial cross-sectional structure of the present utility model as viewed from the right side.

FIG. 8 is a schematic top view of the structure of the present invention.

FIG. 9 is a schematic top view of the structure of the lifting device of the present invention.

Figure 10 is a block diagram of the neural network prediction model system.

Figure 11 is a block diagram of the working principle of each module of the PLC control system.

Figure 12 is a logic block diagram of the PLC control system.

Reference numerals include:

1 is the drilling device, 1.1 is the support, 1.2 is the rack, 1.3 is the bolt, 1.31 is the bolt head, 1.32 is the bolt rod, 1.33 is the annular boss, 1.4 is the outer leg, 1.5 is the connecting plate, and 1.6 is the support Set, 1.7 is drill bit, 1.8 is drilling motor, 1.9 is support block, 1.10 is inner leg, 1.11 is gear, 1.12 is transmission motor, 1.13 is scale, 1.14 is plug, 1.15 is bearing, 1.16 is pressure sensor , 1.17 is the slide;

2 is the lifting device, 2.1 is the support rod, 2.2 is the frame body, 2.21 is the bottom plate, 2.22 is the counterweight, 2.3 is the moving wheel, 2.4 is the lifting motor, 2.5 is the screw, 2.6 is the height adjustment plate, 2.7 is the pallet, 2.8 is the spool.

Detailed ways

In order to make the purpose, technical solution and advantages of the technical solution more clear, the technical solution will be further described in detail below with reference to the specific embodiments. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the technical solution.

As shown in Figures 1-12, the utility model discloses a sampling drilling device and a drilling method for wall concrete quality detection, which comprises a frame body 2.2, a lifting device 2, and a drilling device 1, wherein the frame body 2.2 includes the bottom plate 2.21 and the support rods arranged on the four corners of the bottom plate 2.21. There are connecting rods between the tops of the support rods, the bottom of the bottom plate 2.21 is provided with a moving wheel 2.3, the left side of the bottom plate 2.21 extends horizontally, and the extended bottom plate is provided with counterweights device, a connecting rod is arranged between the top of the counterweight device and the top of the support rod;

The lifting device 2 includes a lifting motor 2.4, and an encoder is installed on the lifting motor, which is used to count the number of revolutions of the lifting motor, and input the counted numbers into the analog control module. The lifting motor 2.4 is fixed on the base plate 2.21, The output shaft of the lifting motor 2.4 is perpendicular to the bottom plate 2.21, and is connected with a screw 2.5; the outer periphery of the screw 2.5 is threadedly connected with a height adjusting plate 2.6, and the screw 2.5 is driven by the lifting motor 2.4 to rotate, so that the height adjusting plate 2.6 moves in a straight line up and down. A support plate 2.7 is fixed on the top of the height adjustment plate 2.6;

The drilling device 1 includes a support 1.1, a drilling motor 1.8 and a transmission motor 1.12, the support 1.1 is vertically fixed on the support plate 2.7, the four corners of the support 1.1 are provided with horizontal through holes, and bolts 1.3 are inserted into the through holes, The tail of the bolt 1.3 protrudes to the right side of the support 1.1, and is sleeved with a support leg; the support leg includes an outer support leg 1.4 and an inner support leg 1.10, the outer support leg 1.4 is fixed on the support 1.1, and the inner support leg 1.10 and the bolt 1.3 Threaded connection, the end of the inner leg 1.10 is provided with a support seat; there is a connecting plate 1.5 between the outer legs 1.4, a pressure sensor 1.16 is installed on the inner leg 1.10, and the pressure sensor 1.16 is connected with a PLC control system, PLC control The system is respectively connected with the drilling motor 1.8 and the transmission motor 1.12. The PLC control system sends out corresponding variable speed commands to the drilling motor 1.8 and the transmission motor 1.12 according to the data of the pressure sensor 1.16; the PLC control system includes an analog control module, a logic control module, Multi-computer communication module, timing control module; analog control module completes the calculation of the pressure sensor difference by calculating the neural network, including real-time calculation of the pressure sensor difference during the working process of the whole device, and finally predicting the difference and real-time difference. It is converted into an electrical signal and provided to the logic control module for judgment and control; the logic control module converts the electrical signal from the analog control module into a digital signal for judgment, and controls the movement of the drill bit according to the judgment result; the multi-computer communication module and the pressure sensor, drill The hole motor and the transmission motor are connected, and are responsible for delivering the electrical signal of the pressure sensor to the analog control module, and also the command signal sent by the logic control module for judgment to the drilling motor and the transmission motor; sequence control module and analog control module, logic Both the control module and the multi-computer communication module are connected to ensure the stability and order of the entire circuit. A transmission motor 1.12 is arranged at the center of the left side of the support 1.1. The output shaft of the transmission motor 1.12 is arranged vertically downward to the bottom plate 2.21. The output shaft of the transmission motor 1.12 is connected with a gear 1.11. The gear 1.11 is meshed with the rack 1.2. The rack 1.2 is set horizontally, the support 1.1 has a through hole at the intersection with the rack 1.2, so that the rack can pass through, a scale 1.13 is embedded on the rack 1.2, and there is a support function below the through hole for the rack 1.2. The support block 1.9 is located on the left side of the support 1.1 and is fixedly connected with the support 1.1; the other end of the rack 1.2 is fixedly connected with a drilling motor 1.8, and the drilling motor 1.8 is located on the right side of the support 1.1. The output shaft of the motor 1.8 is arranged horizontally, and is connected with a drill bit 1.7, which passes through the connecting plate 1.5; the outer casing of the drilling motor 1.8 is provided with a support sleeve 1.6, and the support sleeve 1.6 is fixedly connected with the rack 1.2.

The drilling motor 1.8 and the counterweight device are respectively arranged at both ends of the frame body; the counterweight device includes a counterweight block 2.22, and the counterweight block 2.22 runs through a support rod 2.1 from top to bottom, the support rod 2.1 and the counterweight block 2.22 Threaded connection, a support plate is fixed at the bottom of the support rod 2.1, and by rotating the support rod 2.1, the bottom of the support plate can fall on the ground to increase the overall stability.

There are round holes on both sides of the support plate 2.7, into which the sliding column 2.8 is inserted, the sliding column 2.8 is perpendicular to the supporting plate 2.7, the top surface of the sliding column 2.8 is fixedly connected with the connecting rod, and the bottom surface of the sliding column 2.8 is connected with the bottom plate of the bracket 2.21 Fixed connection, the setting of the sliding column 2.8 can improve the stability of the support plate 2.7 when it moves up and down, thereby improving the stability of the drilling device;

There are two lifting devices 2, which are arranged on both sides of the bottom plate 2.21 in parallel. The cross section of the outer leg 1.4 is C-shaped, and one side has no solid body, which is convenient for the installation of the inner leg 1.10. The outer legs 1.4 and the inner legs 1.10 are provided with mutually overlapping slideways 1.17, and plugs 1.14 are inserted into the slideways 1.17 to fix the relative positions of the inner legs 1.10 and the outer legs 1.4. The bolt 1.3 includes a bolt head 1.31 and a bolt shank 1.32. The bolt head 1.31 and the bolt shank 1.32 are welded and connected. The middle of the bolt shank 1.32 is provided with an annular boss 1.33. The inner wall of the corresponding circular through hole is provided with an annular groove, and the annular boss is far away from the screw. The end face of one side of the head 1.31 is flush with the end face of one side of the through hole, and the bolt 1.3 is limited in the support 1.1. The support sleeve 1.6 and the scale 1.13 are provided with a plurality of holes to facilitate the heat dissipation of the transmission motor 1.12 and the drilling motor 1.8. The support block 1.9 is provided with a circular groove, and the circular groove is provided with a bearing 1.15 for cooperating with the output shaft of the transmission motor. The support block 1.9 is provided with a chute for the rack to slide through.

The structure principle of the device is as follows: the drilling device is fixedly connected to the support plate, the support plate is fixedly connected to the height adjustment plate, at the same time the support plate is slidingly matched with the sliding column welded on the frame body, the height adjustment plate is matched with the screw thread, the screw is connected to the lift The motor shaft is connected, the lifting motor works to drive the screw to rotate, and the height adjustment plate moves in the vertical direction due to the cooperation with the thread, so as to drive the support plate fixedly connected with the height adjustment plate to move up and down along the sliding column, so as to realize the drilling above. The sampling height of the sampling device is changed, and the upper drilling device is used to complete the sampling of the wall at different heights. The principle of drilling and sampling is that the right side of the support is fixedly connected with outriggers, the inner outriggers included in the outriggers and the outer outriggers are kept slidably connected by plugs, and the four-corner outriggers of the support are connected with bolts, bolts and inner legs. Threaded connection, a connecting plate is fixedly connected between the ends of the legs, the outer legs and the support are fixedly connected by welding, the support block is located on the left side of the support, and the inner side of the support block is connected with a gear, and the upper side of the gear is connected There is the output shaft of the transmission motor, the lower side of the gear is connected with a bearing, the rear side of the gear is meshed with a rack, the inner side of the rear end of the rack is inlaid with a scale, and the right side of the rack is connected with a support sleeve. A drilling motor is installed on the inner side of the support sleeve, and a drill bit is fixedly connected to the output shaft of the drilling motor. When the wall is flat and perpendicular to the ground, the inner legs can ensure the correctness of sampling with the same elongation. When the wall is uneven, the same elongation is not suitable. The correctness of sampling can be ensured only when the values obtained by the four pressure sensors on the four inner legs are the same. At the same time, there is a pressure sensor at the bottom of the inner leg, and the pressure sensor is connected to a PLC control system. The PLC control system is connected to the drilling motor and the transmission motor respectively. The PLC control system sends the corresponding drilling motor and transmission motor according to the data of the pressure sensor Variable speed command to adjust the depth and height of the drill.

Wherein, the outer legs and the connecting plate are an integrated structure, and the moving wheel and the bottom plate are fixedly connected by screws;

Among them, the bolt and the support form a non-removable structure, and the middle part of the bolt is in a "dry" shape; the bolt head of the bolt is separated from the shank of the bolt before assembly. The upper end of the support completes the welding of the bolt head and the rod to ensure that the bolt and the support form a non-removable structure;

Among them, after the bolts are installed, the outer legs and the support are fixedly connected by welding;

Among them, one side of the outer leg has no solid body, which is convenient for the installation of the inner leg;

Among them, the support block and the support are provided with a chute structure for the rack to accommodate the sliding of the rack, and the scale is inlaid and connected to the rack;

Wherein, the support sleeve and the rack are fixedly connected by bolts, the drilling motor and the support sleeve are nested and connected, and the drill bit penetrates the inside of the support sleeve. The drilling method using the sampling drilling device for wall concrete quality inspection is:

The first step is to move the entire device to the sampling position by moving the wheel, and then rotate the outrigger a to lift the outrigger a until the outrigger a touches the ground, providing a stable environment;

The second step, according to the required drilling height, turn on the lift motor, drive the bolt to rotate, the bolt and the height adjustment plate cooperate with each other, the height adjustment plate moves vertically upward, and the support plate completes the vertical direction along the sliding column. up and down movement to hold up the drilling device to move up and down;

The third step, when the drilling device reaches the specified height, turn the four bolts on the support to drive the inner legs to move horizontally. When all the inner legs touch the wall, the pressure sensor on them will display the force value , when the pressure of the four inner legs shows the same value, it is fixed on the wall;

The fourth step is to control the transmission motor and the drilling motor to work together. Driven by the transmission motor and the drilling motor, the drill bit rotates horizontally, and the drilling depth of the drill bit is controlled by the PLC control system, so as to make the later sampling more accurate;

Step 5: After drilling and sampling, turn the bolts to make the inner legs leave the wall, and then control the lifting motor to lower the drilling device to ensure that the center of gravity of the whole device is stable, and then turn the support rod to leave the ground, and the whole device is in the same position again. movable state.

令s表示一个已知输入样品的标号，当第s个样品的原始数据输入到网络时，相应的输出单元状态记为

隐单元状态记为

输入单元状态记为

此处下标i，j，k依次对应于输出层、中间层及输入层。在这一约定下，从中间层到输出层的权记为w_ij，从输入层到中间层的权记为

如果两个权值都已确定，对于任何一组确定的输入，网络中的每一个单元的值都不难确定。对于样品输入s而言，隐单元j的输入是

相应的输出状态是

由此，输出单元i所接收到的迭加信号是

网络的最终输出是

其中的两个权值可选择不同方法的计算来确定其数值，通过改变i，j，k的数值最后确定得到的神经网络的输出值即为我们所需要的压力传感器的差值。The PLC control system includes an analog control module, a logic control module, a multi-computer communication module, and a time sequence control module. The analog control module uses a neural network model to predict the numerical variation range of the pressure sensor. The principle of the neural network model predicting the value is: based on a large number of experiments and simulations, provide sample data for the training of the prediction model, and use the sigmoid activation function:

Let s denote the label of a known input sample, when the raw data of the s-th sample is input to the network, the corresponding output unit state is denoted as

The hidden unit state is denoted as

The input unit state is recorded as

Here, the subscripts i, j, and k correspond to the output layer, the intermediate layer, and the input layer in turn. Under this convention, the weight from the middle layer to the output layer is denoted w _ij , and the weight from the input layer to the middle layer is denoted as

If both weights are determined, it is not difficult to determine the value of each unit in the network for any given set of inputs. For the sample input s, the input to the hidden unit j is

The corresponding output state is

Thus, the superimposed signal received by the output unit i is

The final output of the network is

The two weights can be calculated by different methods to determine their values. By changing the values of i, j, and k, the output value of the neural network finally determined is the difference of the pressure sensor we need.

In the actual engineering operation, the drill bit performs the drilling sampling work through the preset rotational speed and forward speed at the beginning, and the numerical variation range of the pressure sensor predicted by the neural network model is used at the same time. There will be resistance to the advance of the drill bit, so the value displayed by the pressure sensor on the inner leg will decrease. The PLC control system collects the difference between the value displayed by the pressure sensor on the inner leg and the value displayed when the pressure sensor touches the wall before work. to control the rotational speed and forward speed of the drill bit. If the difference is always within the preset allowable range during the drilling sampling process, the PLC control system will not change, and stop working when the drilling depth reaches the preset depth; if the difference during the drilling sampling process is greater than After the preset allowable range, the PLC control system will increase the rotation speed of the drill bit. When the difference reaches the normal range, the drill bit will perform drilling sampling work at this rotation speed until the preset depth; if the difference value during the drilling sampling process After it is larger than the preset range and no matter how to increase the rotation speed, the difference cannot return to the normal range, or even the drill bit cannot penetrate deep. The action completes the bird-pecking state until the drill bit drills through the steel bar and the pressure sensor difference returns to the normal value again. When the drill bit drilling depth reaches the preset position, the drilling sampling is completed again.

The invention operates through the transmission motor and the drilling motor, so that the gear can drive the rack to move horizontally under the support and limit of the support block, so that the drilling motor can drive the drill bit to move and rotate horizontally. The scale embedded in the inner side of the rear end of the strip and the PLC control system control the depth and height of the drill bit; because the bearing and the support block are clamped and connected, the support sleeve and the rack bolt are fixedly connected, and the support sleeve has a porous structure, so it is convenient to use. Parts such as drilling motors are dissipated for heat dissipation, dismantling, overhauling and replacement, so that the device has a long service life; the inner legs can be adjusted by turning the bolts, and the pressure sensors placed on the four inner legs can ensure that the wall is not damaged. The flat condition further ensures the accuracy of sampling.

The above content is only a preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the technical content, many changes can be made in the specific implementation and application scope, as long as these changes do not depart from the present invention. All ideas belong to the protection scope of this patent.

Claims (7)

1. The utility model provides a wall concrete quality testing is with sample drilling equipment which characterized in that: the drilling device comprises a frame body, a lifting device and a drilling device, wherein the lifting device is fixed at the bottom of the frame body and comprises a lifting motor, an output shaft of the lifting motor is connected with the drilling device, and the drilling device is controlled to move up and down; the drilling device comprises a drilling motor, a transmission motor and a support, a drill bit is connected to the end part of an output shaft of the drilling motor, and the transmission device is arranged between the output shaft of the transmission motor and the drilling motor so as to ensure that the transmission motor controls the drilling motor to move horizontally; the transmission motor is fixedly connected with the support, horizontal through holes are formed in four corners of the support, bolts are inserted into the through holes, inner supporting legs are sleeved on the parts, extending out of the support, of the bolts, outer supporting legs are arranged outside the inner supporting legs, the outer supporting legs are fixed on the support, the inner supporting legs are in threaded connection with the bolts, and pressure sensors are mounted at the ends of the inner supporting legs; the pressure sensor is connected with a PLC control system, the PLC control system is respectively connected with the drilling motor and the transmission motor, and the PLC control system sends out corresponding speed change instructions to the drilling motor and the transmission motor according to data of the pressure sensor.

2. The sampling and drilling device for detecting the quality of the concrete on the wall surface according to claim 1, characterized in that: the top of the lifting device is provided with a supporting plate, a drilling device is fixed on the supporting plate, round holes are formed in two side edges of the supporting plate, sliding columns are inserted into the round holes and are perpendicular to the supporting plate, the top surfaces and the bottom surfaces of the sliding columns are fixedly connected with the frame body, and the sliding columns are used for improving the stability of the supporting plate during up-and-down movement.

3. The sampling and drilling device for detecting the quality of the concrete on the wall surface according to claim 1, characterized in that: the number of the lifting devices is 1-2.

4. The sampling and drilling device for detecting the quality of the concrete on the wall surface according to claim 1, characterized in that: the cross section of the outer supporting leg is C-shaped and is used for installing the inner supporting leg in a portable mode.

5. The wall concrete quality testing sampling drilling device of claim 4, characterized in that: the tail parts of the outer supporting leg and the inner supporting leg are provided with mutually coincident slideways, and inserting bolts are inserted into the slideways to fix the relative positions of the inner supporting leg and the outer supporting leg.

6. A sampling drilling device for wall concrete quality inspection according to claim 1 or 3, characterized in that: the bolt comprises a bolt head and a bolt rod, the bolt head and the bolt rod are in welded connection, an annular boss is arranged in the middle of the bolt rod, an annular groove is formed in the inner wall of the corresponding through hole, the annular boss is far away from the end face of one side of the bolt head and the end face of one side of the through hole, and the bolt is limited in the support.

7. The sampling and drilling device for detecting the quality of the concrete on the wall surface according to claim 6, characterized in that: and a supporting block is arranged below the transmission motor, the supporting block is fixed on the support, a circular groove is arranged on the supporting block, and a bearing used for being connected with an output shaft of the transmission motor in a matched mode is arranged in the circular groove.

Images