Monitoring device for pressure and torque of spiral drilling machine

Abstract

The utility model belongs to the technical field of spiral drilling machines, and particularly relates to a spiral drilling machine pressure and torque monitoring device which comprises a connecting frame, a drilling machine body, a torque sensing assembly and a pressure sensing assembly. The top of the drilling machine body is connected with a hydraulic system through a hydraulic oil pipe. One end of the torque sensing assembly is connected with the connecting frame, and the other end of the torque sensing assembly is connected with the top of the drilling machine body. The pressure sensing assembly is arranged on the hydraulic oil pipe; the torque sensing assembly and the pressure sensing assembly are electrically connected with the display screen. The output torque of the spiral drilling machine can be monitored by arranging the torque sensing assembly at the joint of the drilling machine body and the connecting frame, and the oil pressure of the oil inlet pipe of the drilling machine body can be monitored by arranging the pressure sensing assembly on the hydraulic oil pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to spiral drilling machine technical field especially relates to a spiral drilling machine pressure and torque monitoring devices. BACKGROUND

[0002] When construction in complex strata (such as rock layer, hard clay layer), abnormal fluctuation of torque and pressure can indicate drill bit jam, strata collapse and other dangers. Especially for input pressure (such as hydraulic system pressure) and output torque are the core power parameters of spiral drilling machine, if input pressure is too high, it can cause hydraulic system pipe burst, seal damage and other risks; Output torque exceeds the rated value of equipment, which will lead to drill pipe fracture, speed reducer gear damage and other mechanical failures. Therefore, it is necessary to monitor the pressure and torque of spiral drilling machine in real time during drilling. SUMMARY

[0003] The utility model solves the technical problems in the prior art, and provides a spiral drilling machine pressure and torque monitoring device, which can monitor the input pressure and output torque of the spiral drilling machine in real time.

[0004] The utility model adopts the technical scheme that a spiral drilling machine pressure and torque monitoring device comprises a connecting frame, the connecting frame is installed on the movable arm of the excavator, a drilling machine body is installed on the connecting frame, the top of the drilling machine body is connected with a hydraulic system through a hydraulic oil pipe, a torque sensing assembly is connected with one end of the connecting frame, the other end of the torque sensing assembly is connected with the top of the drilling machine body, a pressure sensing assembly is arranged on the hydraulic oil pipe, and the torque sensing assembly and the pressure sensing assembly are electrically connected with a display screen.

[0005] The top of the drilling machine body is connected with the hydraulic system through the hydraulic oil pipe.

[0006] The torque sensing assembly is connected with one end of the connecting frame, and the other end of the torque sensing assembly is connected with the top of the drilling machine body.

[0007] The pressure sensing assembly is arranged on the hydraulic oil pipe.

[0008] The torque sensing assembly and the pressure sensing assembly are electrically connected with the display screen. The specific technical effect is that the torque sensing assembly arranged at the connecting position of the drilling machine body and the connecting frame can monitor the output torque of the spiral drilling machine, the pressure sensing assembly arranged on the hydraulic oil pipe (oil inlet pipe section) is used to monitor the oil pressure of the oil inlet pipe of the drilling machine body, the data collected by the torque sensing assembly and the pressure sensing assembly is transmitted to the display screen synchronously, and the drilling parameters or construction actions can be dynamically adjusted according to the torque and pressure data displayed on the display screen in real time.

[0009] Further, the drilling machine body comprises a drill bit and a drilling machine driving head, the drilling machine driving head is connected with the other end of the torque sensing assembly, a hydraulic motor is arranged in the drilling machine driving head, a moving end of the hydraulic motor is connected with the drill bit, and the hydraulic oil pipe is connected with the hydraulic motor to drive the hydraulic motor to rotate the drill bit.

[0010] Further, the torque sensing assembly comprises a housing, a torque sensor body and a sensor measuring shaft, the torque sensor body is arranged in the housing, the sensor measuring shaft is installed on the torque sensor body, an upper end of the sensor measuring shaft is connected with the connecting frame, and a lower end of the sensor measuring shaft is connected with the drilling machine driving head.

[0011] Further, a through hole is formed in the housing, a signal output end of the torque sensor body passes through the through hole and is electrically connected with the display screen.

[0012] Further, the sensor measuring shaft comprises a sensing shaft, a first connecting block and a second connecting block, the first connecting block is installed on an upper end of the sensing shaft and is connected with the connecting frame, the second connecting block is installed on a lower end of the sensing shaft and is connected with the drilling machine driving head, a first mounting hole is formed in the first connecting block and is formed in a first direction, and a second mounting hole is formed in the second connecting block and is formed in a second direction.

[0013] Further, two first ear plates are arranged on the connecting frame, the first connecting block is arranged between the two first ear plates, a first ear hole is formed in each first ear plate and matches the first mounting hole, and a fixing screw passes through the first ear hole and the first mounting hole to connect the first connecting block with the first ear plate.

[0014] Further, two second ear plates are arranged on the drilling machine driving head, the second connecting block is arranged between the two second ear plates, a second ear hole is formed in each second ear plate and matches the second mounting hole, and a fixing screw passes through the second ear hole and the second mounting hole to connect the second connecting block with the second ear plate.

[0015] Further, the pressure sensing assembly comprises a pressure sensor and a hydraulic connector, one end of the pressure sensor is arranged in communication with the hydraulic oil pipe through the hydraulic connector, and the other end of the pressure sensor is electrically connected with the display screen.

[0016] Further, the hydraulic connector is a tee connector.

[0017] Compared with the prior art, the helical drilling machine pressure and torque monitoring device has the beneficial effects that

[0018] The torque sensing assembly arranged at the connecting position of the drilling machine body and the connecting frame can monitor the output torque of the helical drilling machine, the pressure sensing assembly arranged on the hydraulic oil pipe (oil inlet pipe section) is used to monitor the oil pressure of the oil inlet pipe of the drilling machine body, the data collected by the torque sensing assembly and the pressure sensing assembly is synchronously transmitted to the display screen, and the drilling parameter or construction action can be dynamically adjusted according to the torque and pressure data displayed on the display screen in real time. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model is further explained below in combination with the drawings and examples.

[0020] Figure 1 It is a structural schematic view of a helical drilling machine pressure and torque monitoring device of the utility model;

[0021] Figure 2 It is Figure 1 It is a local structure amplification schematic view of A in the middle;

[0022] Figure 3 It is a structural schematic view of a torque sensing assembly of the utility model.

[0023] In the figure: 1, connecting frame; 101, first ear plate; 2, drilling machine body; 201, drill bit; 202, drilling machine driving head; 203, second ear plate; 3, torque sensing assembly; 301, shell; 302, sensor measurement shaft; 303, first connecting block; 304, second connecting block; 305, first mounting hole; 306, second mounting hole; 4, pressure sensing assembly; 401, pressure sensor; 402, hydraulic joint; 5, hydraulic oil pipe; 6, display screen. DETAILED DESCRIPTION

[0024] The utility model will be further explained in combination with the drawings. These drawings are all simplified schematic views, and only schematically show the basic structure of the utility model, so they only show the relevant components of the utility model.

[0025] In the description of the utility model, it is necessary to understand that the orientation or positional relation indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is the orientation or positional relation based on the orientation or positional relation shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the features limited by "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0026] In the description of the utility model, it should be explained that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] As Figures 1 to 3 As shown in the preferred embodiment of the utility model, the screw drill machine pressure and torque monitoring device of the embodiment comprises: connecting frame 1, drill body 2, torque sensing assembly 3 and pressure sensing assembly 4, connecting frame 1 is installed on the movable arm of the excavator, drill body 2 is installed on connecting frame 1, the top of drill body 2 is connected with the hydraulic system through hydraulic oil pipe 5, one end of torque sensing assembly 3 is connected with connecting frame 1, the other end of torque sensing assembly 3 is connected with the top of drill body 2, pressure sensing assembly 4 is arranged on hydraulic oil pipe 5, torque sensing assembly 3 and pressure sensing assembly 4 are electrically connected with display screen 6. Therefore, by arranging torque sensing assembly 3 at the connecting place of drill body 2 and connecting frame 1, the output torque of the screw drill machine can be monitored, by arranging pressure sensing assembly 4 on hydraulic oil pipe 5 (oil inlet pipe section), the oil pressure of the oil inlet pipe of drill body 2 can be monitored, the data collected by torque sensing assembly 3 and pressure sensing assembly 4 is synchronously transmitted to display screen 6, and the construction personnel can dynamically adjust drilling parameters or construction actions according to the torque and pressure data displayed by display screen 6 in real time.

[0028] In a preferred embodiment, the drilling machine body 2 comprises a drill bit 201 and a drilling machine driving head 202, the drilling machine driving head 202 is connected with the other end of the torque sensing assembly 3, a hydraulic motor is arranged in the drilling machine driving head 202, the moving end of the hydraulic motor is connected with the drill bit 201, and the hydraulic oil pipe 5 is connected with the hydraulic motor to drive the hydraulic motor to drive the drill bit 201 to rotate.

[0029] Specifically, the hydraulic system is arranged in the cab of the excavator, the hydraulic oil pipe 5 is arranged along the movable arm (i.e. the large and small arms of the excavator) of the excavator and is connected with the hydraulic system, high-pressure oil is delivered to the hydraulic motor through the hydraulic oil pipe 5, the hydraulic motor is driven by the high-pressure oil, and then the drill bit 201 is driven to rotate forward or reversely.

[0030] In a preferred embodiment, the torque sensing assembly 3 comprises a housing 301, a torque sensor body and a sensor measuring shaft 302, the torque sensor body is arranged in the housing 301, the sensor measuring shaft 302 is installed on the torque sensor body, the upper end of the sensor measuring shaft 302 is connected with the connecting frame 1, the lower end of the sensor measuring shaft 302 is connected with the drilling machine driving head 202, and the torque sensor body is electrically connected with the display screen 6. The torque sensor body converts the torque into an electrical signal, which is transmitted to the display screen 6 through a signal line, and the electrical signal is converted into a number and an image through the program built in the display screen 6.

[0031] Specifically, the signal output end of the torque sensor body is electrically connected with the display screen 6 through a signal line, the display screen 6 is arranged in the cab of the excavator, and the signal line is arranged along the movable arm (i.e. the large and small arms of the excavator) of the excavator and is connected with the display screen 6.

[0032] In a preferred embodiment, a through hole is formed in the housing 301, and the signal output end of the torque sensor body passes through the through hole and is electrically connected with the display screen 6.

[0033] In a preferred embodiment, the sensor measuring shaft 302 comprises a sensing shaft, a first connecting block 303 and a second connecting block 304, the first connecting block 303 is installed on the upper end of the sensing shaft and is connected with the connecting frame 1, the second connecting block 304 is installed on the lower end of the sensing shaft and is connected with the drilling machine driving head 202, a first mounting hole 305 is formed in the first connecting block 303 and is formed in a first direction, and a second mounting hole 306 is formed in the second connecting block 304 and is formed in a second direction.

[0034] Specifically, the first direction and the second direction are arranged perpendicularly, if the first mounting hole 305 and the second mounting hole 306 are both arranged along the same direction, the screw drill machine only has one degree of freedom, the perpendicular arrangement makes the screw drill machine have two degrees of freedom during construction, the torque sensing assembly 3 and the drill machine body 2 can rotate around the axis of the first mounting hole 305(representing the first degree of freedom), the drill machine body 2 rotates around the axis of the second mounting hole 306(representing the second degree of freedom), so that the screw drill machine can flexibly adjust the drilling direction, especially in the environment where there are obstacles, when the output torque changes, the two degrees of freedom can also change the drilling angle in time, adjust the posture, avoid obstacles, successfully complete the drilling task, and improve the construction ability of the drill machine in the complex space environment.

[0035] In a preferred embodiment, the connecting frame 1 is provided with two first ear plates 101 arranged at intervals, and the first connecting block 303 is arranged between the two first ear plates 101. Each first ear plate 101 is provided with a first ear hole matched with the first mounting hole 305, and a fixing screw passes through the first ear hole and the first mounting hole 305 to connect the first connecting block 303 and the first ear plate 101.

[0036] In a preferred embodiment, the drill machine driving head 202 is provided with two second ear plates 203 arranged at intervals, and the second connecting block 304 is arranged between the two second ear plates 203. Each second ear plate 203 is provided with a second ear hole matched with the second mounting hole 306, and a fixing screw passes through the second ear hole and the second mounting hole 306 to connect the second connecting block 304 and the second ear plate 203.

[0037] In a preferred embodiment, the pressure sensing assembly 4 includes a pressure sensor 401 and a hydraulic joint 402. One end of the pressure sensor 401 is arranged in communication with the hydraulic oil pipe 5 through the hydraulic joint 402, and the other end of the pressure sensor 401 is electrically connected with the display screen 6. Specifically, the pressure sensor 401 is electrically connected with the display screen 6 through a signal line.

[0038] In a preferred embodiment, the hydraulic joint 402 is a three-way joint.

[0039] The working principle is as follows:

[0040] The pressure sensor 401 is arranged in communication with the hydraulic oil pipe 5 (the hydraulic oil pipe 5 is used for inputting hydraulic oil to the rig drive head 202 of the auger rig) through a three-way hydraulic joint 402, can monitor the input pressure of the hydraulic system, when the pressure changes or the load changes (for example: through simulation of a certain input pressure, the auger rig can drill 3m deep, when the auger rig drills a hole deeper than 3m in the actual construction process, at this time, the input pressure changes relative to the simulation data, the construction personnel can adjust the input pressure in time according to the change, so that the input pressure is kept consistent with the pressure required by the actual drilling depth, and the situation of pipe explosion of the hydraulic system is avoided), the pressure sensor 401 converts the pressure load into an electric signal, which is transmitted to the display screen 6 through a signal line, is converted into a number and an image by a program built in the display screen 6.

[0041] The rig drive head 202 and the connecting frame 1 are respectively arranged at two ends of the sensor measurement shaft 302, can monitor the output torque of the auger rig, when the torque changes (for example: in the actual drilling process, the deformation of the connecting place of the sensor measurement shaft 302 and the rig drive head 202 is large when the drill bit 201 encounters hard rock, and the torque is large and exceeds the rated value, then the construction personnel can adjust the construction action in time according to the change, such as reducing the drilling speed, increasing the pressure and the like, so that the situation of breakage of the drill bit 201 is avoided), the torque sensor body converts the torque into an electric signal, which is transmitted to the display screen 6 through a signal line, and is converted into a number and an image by a program built in the display screen 6.

[0042] Compared with the prior art, the utility model has the advantages that:

[0043] The torque sensing assembly 3 arranged at the connecting place of the rig body 2 and the connecting frame 1 can monitor the output torque of the auger rig, the pressure sensing assembly 4 arranged on the hydraulic oil pipe 5 (the oil inlet pipe section) is used for monitoring the oil pressure of the oil inlet pipe of the rig body 2, the data collected by the torque sensing assembly 3 and the pressure sensing assembly 4 is synchronously transmitted to the display screen 6, and the construction personnel can dynamically adjust the drilling parameter or the construction action according to the torque and pressure data displayed by the display screen 6 in real time.

[0044] The above-mentioned ideal embodiment according to the utility model is inspired, through the above-mentioned description, the relevant staff can make various changes and modifications without deviating from the technical thought of the utility model, the technical scope of the utility model is not limited to the content in the specification, and must be determined by the claim range.

Claims

1. A monitoring device for pressure and torque of a spiral drilling rig, characterized in that, include: A connecting frame (1) is mounted on the boom of an excavator; The drilling rig body (2) is mounted on the connecting frame (1), and the top of the drilling rig body (2) is connected to the hydraulic system through a hydraulic oil pipe (5). Torque sensing component (3), one end of which is connected to the connecting frame (1), and the other end of which is connected to the top of the drilling rig body (2); Pressure sensing component (4), the pressure sensing component (4) is disposed on the hydraulic oil pipe (5); Both the torque sensing component (3) and the pressure sensing component (4) are electrically connected to the display screen (6).

2. The monitoring device for pressure and torque of a spiral drilling rig as described in claim 1, characterized in that, The drilling rig body (2) includes a drill bit (201) and a drilling rig drive head (202). The drilling rig drive head (202) is connected to the other end of the torque sensing component (3). A hydraulic motor is installed inside the drilling rig drive head (202). The moving end of the hydraulic motor is connected to the drill bit (201). The hydraulic oil pipe (5) is connected to the hydraulic motor to drive the hydraulic motor to rotate the drill bit (201).

3. The monitoring device for pressure and torque of a spiral drilling rig as described in claim 2, characterized in that, The torque sensing assembly (3) includes: a housing (301), a torque sensor body, and a sensor measuring shaft (302). The torque sensor body is disposed inside the housing (301), and the sensor measuring shaft (302) is mounted on the torque sensor body. The upper end of the sensor measuring shaft (302) is connected to the connecting frame (1), and the lower end of the sensor measuring shaft (302) is connected to the drilling rig drive head (202). The torque sensor body is electrically connected to the display screen (6).

4. The monitoring device for pressure and torque of a spiral drilling rig as described in claim 3, characterized in that, The housing (301) has a through hole, and the signal output end of the torque sensor body passes through the through hole and is electrically connected to the display screen (6).

5. The monitoring device for pressure and torque of a spiral drilling rig as described in claim 3, characterized in that, The sensor measuring shaft (302) includes a sensing shaft, a first connecting block (303) and a second connecting block (304). The first connecting block (303) is installed on the upper end of the sensing shaft and connected to the connecting frame (1). The second connecting block (304) is installed on the lower end of the sensing shaft and connected to the drilling rig drive head (202). The first connecting block (303) has a first mounting hole (305) in a first direction. The second connecting block (304) has a second mounting hole (306) in a second direction.

6. The monitoring device for pressure and torque of a spiral drilling rig as described in claim 5, characterized in that, The connecting frame (1) is provided with two spaced-apart first ear plates (101), and a first connecting block (303) is provided between the two first ear plates (101). Each first ear plate (101) is provided with a first ear hole, which matches the first mounting hole (305). A fixing screw passes through the first ear hole and the first mounting hole (305) to connect the first connecting block (303) to the first ear plate (101).

7. The monitoring device for pressure and torque of a spiral drilling rig as described in claim 5, characterized in that, The drilling rig drive head (202) is provided with two spaced-apart second ear plates (203), and a second connecting block (304) is provided between the two second ear plates (203). Each second ear plate (203) is provided with a second ear hole, which matches the second mounting hole (306). A fixing screw passes through the second ear hole and the second mounting hole (306) to connect the second connecting block (304) to the second ear plate (203).

8. The monitoring device for pressure and torque of a spiral drilling rig as described in claim 1, characterized in that, The pressure sensing component (4) includes a pressure sensor (401) and a hydraulic connector (402). One end of the pressure sensor (401) is connected to the hydraulic oil pipe (5) through the hydraulic connector (402), and the other end of the pressure sensor (401) is electrically connected to the display screen (6).

9. The monitoring device for pressure and torque of a spiral drilling rig as described in claim 8, characterized in that, The hydraulic connector (402) is a tee connector.

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