Drilling mast verticality adjusting device based on non-parallelogram luffing mechanism

Abstract

The invention discloses a drilling mast perpendicularity adjusting device based on a non-parallelogram luffing mechanism, and relates to the technical field of drilling equipment. Comprising a base and a driving assembly, a base is rotationally connected to the base, and the rotating axis of the base is arranged in the length direction of the base; a movable arm is rotationally connected to the base, and the rotating axis of the movable arm is arranged in the width direction of the base. A drilling mast is rotationally connected to the movable arm, the rotating axis of the drilling mast is arranged in the width direction of the base, and the drilling rod is arranged on the drilling mast. The driving assembly is used for driving the base, the movable arm and the drilling mast to rotate; through the arrangement of the base, the movable arm, the drilling mast and the driving assembly, the device can complete posture adjustment of the drilling rod, meanwhile, vertical adjustment can be efficiently and rapidly completed through the front-back tilt angle sensor, the left-right tilt angle sensor and the electric proportional valve, and an existing parallelogram luffing mechanism is improved in the aspects of cost and occupied space.

Description

Technical Field

[0001] The invention relates to the technical field of drilling equipment, and in particular to a drilling mast vertical adjustment device based on a non-parallelogram amplitude varying mechanism. Background Art

[0002] In drilling equipment, the mast is the core component of the entire equipment. When the equipment switches between the transport state and the working state, the mast needs to be frequently tilted and erected. Usually, the drilling mast is installed on a parallelogram-shaped luffing mechanism. The mast tilting and mast erecting actions, as well as the mast verticality control are achieved by controlling the extension or retraction of the left and right mast cylinders. The driver controls the operating handle to achieve the mast tilting and mast erecting actions. When adjusting the verticality, the angle data of the mast is observed and detected, and the verticality adjustment operation is performed based on personal experience.

[0003] Existing drilling rigs generally use a drill mast control system and structure based on a parallelogram luffing mechanism, and its structure is as follows: Figure 1 As shown in the figure, the drilling mast system using the parallelogram luffing mechanism, once the verticality is adjusted, the verticality does not need to be adjusted again even if the whole machine performs the luffing action again. However, the drilling mast system using the parallelogram luffing mechanism has a complex structure, occupies a large space, and is expensive. The verticality of the mast is crucial to ensure the verticality of the pile hole during construction and improve the construction quality. Summary of the invention

[0004] In order to complete the mast-falling and mast-standing actions while saving space and cost, the present application provides a drilling mast vertical adjustment device based on a non-parallelogram luffing mechanism.

[0005] The present application provides a drilling mast vertical adjustment device based on a non-parallelogram luffing mechanism, which adopts the following technical solution:

[0006] A drill mast vertical adjustment device based on a non-parallelogram amplitude varying mechanism comprises a base and a driving assembly, wherein the base is rotatably connected to the base, and the rotation axis of the base is arranged along the length direction of the base; the base is rotatably connected to a boom, and the rotation axis of the boom is arranged along the width direction of the base; the boom is rotatably connected to a drill mast, and the rotation axis of the drill mast is arranged along the width direction of the base, and a drill rod is arranged on the drill mast; the driving assembly is used for driving the base, the boom and the drill mast to rotate.

[0007] Optionally, the driving assembly includes a deflection-correcting cylinder, both ends of which are rotatably connected to the base and the pedestal respectively; the deflection-correcting cylinder is extended and retracted to drive the pedestal to rotate.

[0008] Optionally, the driving assembly further comprises a luffing cylinder, both ends of which are rotatably connected to the base and the boom respectively; the luffing cylinder is extended and retracted to drive the boom to rotate.

[0009] Optionally, the driving assembly further comprises a mast cylinder, both ends of which are rotatably connected to the boom and the drill mast respectively; the mast cylinder is extended and retracted to drive the drill mast to rotate.

[0010] Optionally, the deviation-correcting cylinder, the boom-changing cylinder and the mast-standing cylinder are respectively connected in parallel to the oil circuit via three electric proportional valves.

[0011] Optionally, the signals of the front and rear tilt angle sensors and the left and right tilt angle sensors are output to the electric proportional valve.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] The present application enables the device to complete the posture adjustment of the drill rod through the arrangement of the base, boom, drill mast and drive assembly. At the same time, vertical adjustment can be completed efficiently and quickly through the front and rear inclination angle sensors, left and right inclination angle sensors and electric proportional valves, thereby improving the existing parallelogram luffing mechanism in terms of cost and occupied space. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of a drilling mast based on a parallelogram luffing mechanism in the prior art;

[0015] Figure 2 It is the overall structural diagram of the device in this application;

[0016] Figure 3 It is another perspective overall structure diagram of the device in this application;

[0017] Figure 4 It is the overall structural diagram of the oil pressure system in this application.

[0018] Description of reference numerals:

[0019] 1. Base; 2. Pedestal; 3. Boom; 4. Drill mast; 5. Drill rod; 6. Correction cylinder; 7. Boom cylinder; 8. Mast cylinder; 9. Forward and backward tilt angle sensor; 10. Left and right tilt angle sensor; 11. Electric proportional valve; 12. Oil tank; 13. Variable pump. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-4 This application is described in further detail.

[0021] An embodiment of the present application discloses a vertical adjustment device for a drill mast 4 based on a non-parallelogram amplitude varying mechanism, the device comprising a base 1 and a driving assembly, wherein a base 2 is rotatably connected to the base 1, and a rotation axis of the base 2 is arranged along a length direction of the base 1; a boom 3 is rotatably connected to the base 2, and a rotation axis of the boom 3 is arranged along a width direction of the base 1; a drill mast 4 is rotatably connected to the boom 3, and a rotation axis of the drill mast 4 is arranged along a width direction of the base 1, and a drill rod 5 is arranged on the drill mast 4; the base 2, the boom 3 and the drill mast 4 are driven to rotate by the driving assembly to adjust the position and verticality of the drill rod 5.

[0022] In the present application, the driving assembly includes a deflection correction cylinder 6, a luffing cylinder 7 and a mast cylinder 8; the two ends of the deflection correction cylinder 6 are rotatably connected to the base 1 and the base 2 respectively, and the deflection correction cylinder 6 is extended and retracted to drive the base 2 to rotate; the two ends of the luffing cylinder 7 are rotatably connected to the base 2 and the boom 3 respectively, and the luffing cylinder 7 is extended and retracted to drive the boom 3 to rotate; the two ends of the mast cylinder 8 are rotatably connected to the boom 3 and the drill mast 4 respectively, and the mast cylinder 8 is extended and retracted to drive the drill mast 4 to rotate; the deflection correction cylinder 6, the luffing cylinder 7 and the mast cylinder 8 are respectively connected in parallel to the oil circuit through three electric proportional valves 11; the oil circuit also includes an oil tank 12 and a transformer pump.

[0023] At the same time, the drill mast 4 is equipped with a front and rear tilt angle sensor 9 and a left and right tilt angle sensor 10. Figure 4 In the transport state, the mast cylinder 8 is in a retracted state. After the controller issues a command to erect the mast, a2 is energized, and A2 allows pressure oil to enter the large chamber of the cylinder. The mast cylinder 8 extends and starts the mast erection action. The signal of the front and rear tilt angle sensor 9 is detected in real time. When the front and rear tilt angle is 0, the electrical signal of the valve core a2 of the electric proportional valve 11 is disconnected; at the same time, the signals of the left and right tilt angle sensors 10 are detected. When it is detected that the right tilt is detected, the valve core a3 of the electric proportional valve 11 moves upward, and A3 allows pressure oil to enter the large chamber of the deviation correction cylinder 6, and the deviation correction cylinder 6 extends. When it is detected that the left tilt is detected, the valve core b3 of the electric proportional valve 11 moves downward, and B3 allows pressure oil to enter the small chamber of the deviation correction cylinder 6, and the deviation correction cylinder 6 retracts. When the left and right tilt angles are 0, the electrical signal of the electric proportional valve 11a3 is disconnected.

[0024] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A drilling mast vertical adjustment device based on a non-parallelogram luffing mechanism, characterized in that: It includes a base and a driving assembly. The base is rotatably connected to the base, and the rotation axis of the base is arranged along the length direction of the base; the base is rotatably connected to a boom, and the rotation axis of the boom is arranged along the width direction of the base; the boom is rotatably connected to a drill mast, and the rotation axis of the drill mast is arranged along the width direction of the base, and a drill rod is arranged on the drill mast; the driving assembly is used to drive the base, the boom and the drill mast to rotate.

2. The drill mast vertical adjustment device based on a non-parallelogram luffing mechanism according to claim 1, characterized in that: The driving assembly comprises a deviation-correcting oil cylinder, both ends of which are rotatably connected to the base and the pedestal respectively; the deviation-correcting oil cylinder is telescoped to drive the pedestal to rotate.

3. The drill mast vertical adjustment device based on a non-parallelogram luffing mechanism according to claim 2, characterized in that: The driving assembly also includes a luffing oil cylinder, both ends of which are rotatably connected to the base and the boom respectively; the luffing oil cylinder is telescoped to drive the boom to rotate.

4. The drilling mast vertical adjustment device based on a non-parallelogram luffing mechanism according to claim 3, characterized in that: The driving assembly also includes a mast cylinder, both ends of which are rotatably connected to the boom and the drill mast respectively; the mast cylinder is telescoped to drive the drill mast to rotate.

5. The drilling mast vertical adjustment device based on a non-parallelogram luffing mechanism according to claim 4, characterized in that: The drilling mast is equipped with a front and rear tilt angle sensor and a left and right tilt angle sensor.

6. The drilling mast vertical adjustment device based on a non-parallelogram luffing mechanism according to claim 5, characterized in that: The deviation-correcting oil cylinder, the luffing oil cylinder and the mast-standing oil cylinder are respectively connected in parallel on the oil circuit through three electric proportional valves.

7. The drill mast vertical adjustment device based on a non-parallelogram luffing mechanism according to claim 6, characterized in that: Signals from the front and rear tilt angle sensors and the left and right tilt angle sensors are connected to the electric proportional valve.

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