A drilling mast verticality adjusting device based on a non-parallelogram amplitude mechanism

Abstract

The application discloses a drilling mast vertical adjusting device based on a non-parallelogram amplitude mechanism and relates to the technical field of drilling equipment. The base is rotationally connected with the base seat, and the rotation axis of the base seat is arranged along the length direction of the base. The base is rotationally connected with the base seat, and the rotation axis of the base seat is arranged along the length direction of the base. The base is rotationally connected with the base seat, and the rotation axis of the base seat is arranged along the length direction of the base. The driving assembly is used for driving the base, the movable arm and the drilling mast to rotate. The base, the movable arm, the drilling mast and the driving assembly are arranged, so that the device can complete the posture adjustment of the drilling rod. Meanwhile, the front and rear inclination angle sensors, the left and right inclination angle sensors and the electric proportional valve can efficiently and quickly complete the vertical adjustment. The existing parallelogram amplitude mechanism is improved in the cost and occupied space.

Description

Technical Field

[0001] This invention relates to the field of drilling equipment technology, and in particular to a drill mast vertical adjustment device based on a non-parallelogram amplitude-changing mechanism. Background Technology

[0002] In drilling equipment, the mast is the core component. The equipment requires frequent mast retraction and erection during transitions between transport and operational states. Typically, the drilling mast is mounted on a parallelogram-shaped luffing mechanism. The mast's retraction and erection, as well as its verticality control, are achieved by extending or retracting the left and right mast cylinders. The operator controls the control handles to perform these actions. Vertical adjustment is performed by observing and detecting the mast's angle data, relying on personal experience to execute the adjustment.

[0003] Existing drilling rigs generally adopt a mast control system and structure based on a parallelogram-shaped amplitude transformer, the structure of which is as follows: Figure 1 As shown, a drilling mast system employing a parallelogram luffing mechanism allows for verticality adjustment without needing to readjust the verticality once the system is properly verticalized, even if the machine undergoes further luffing movements. However, this system is structurally complex, occupies a large space, and is expensive. The verticality of the mast is crucial for ensuring the verticality of the pile hole and improving construction quality. Summary of the Invention

[0004] In order to complete the mast lowering and mast erecting operations while saving space and cost, this application provides a mast vertical adjustment device based on a non-parallelogram luffing mechanism.

[0005] This application provides a drill mast vertical adjustment device based on a non-parallelogram amplitude-changing mechanism, which adopts the following technical solution:

[0006] A drill mast vertical adjustment device based on a non-parallelogram luffing mechanism includes a base and a drive assembly. A base is rotatably connected to the base, and the rotation axis of the base is set along the length direction of the base. A boom is rotatably connected to the base, and the rotation axis of the boom is set along the width direction of the base. A drill mast is rotatably connected to the boom, and the rotation axis of the drill mast is set along the width direction of the base. A drill rod is set on the drill mast. The drive assembly is used to drive the base, boom and drill mast to rotate.

[0007] Optionally, the drive assembly includes a correction cylinder, with its two ends rotatably connected to the base and the pedestal, respectively; the correction cylinder extends and retracts to drive the pedestal to rotate.

[0008] Optionally, the drive assembly further includes a luffing cylinder, with its two ends rotatably connected to the base and the boom, respectively; the luffing cylinder extends and retracts to drive the boom to rotate.

[0009] Optionally, the driving assembly further comprises a vertical mast oil cylinder, two ends of the vertical mast oil cylinder are rotatably connected to the movable arm and the drilling mast respectively; the vertical mast oil cylinder is extended and retracted to drive the drilling mast to rotate.

[0010] Optionally, the deviation correction oil cylinder, the luffing oil cylinder and the vertical mast oil cylinder are connected in parallel on the oil circuit through three electric proportional valves respectively.

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

[0012] In summary, the present application has the following beneficial technical effects:

[0013] The present application can complete the posture adjustment of the drilling rod through the base, the movable arm, the drilling mast and the driving assembly, and can complete the vertical adjustment efficiently and quickly through the front and rear inclination sensors, the left and right inclination sensors and the electric proportional valves, thereby improving the existing parallelogram luffing mechanism in terms of cost and occupied space. BRIEF DESCRIPTION OF DRAWINGS

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

[0015] Figure 2 is a whole structure diagram of the device in the present application;

[0016] Figure 3 is another whole structure diagram of the device in the present application;

[0017] Figure 4 is a whole structure diagram of the oil pressure system in the present application.

[0018] EXPLANATION OF REFERENCE NUMERALS:

[0019] 1, base; 2, base; 3, movable arm; 4, drilling mast; 5, drilling rod; 6, deviation correction oil cylinder; 7, luffing oil cylinder; 8, vertical mast oil cylinder; 9, front and rear inclination sensors; 10, left and right inclination sensors; 11, electric proportional valve; 12, oil tank; 13, variable pump. DETAILED DESCRIPTION

[0020] The following will be described in detail in combination with the accompanying drawings. Figures 1-4 The present application will be further described in detail.

[0021] The embodiment of the application discloses a drilling mast 4 verticality adjusting device based on a non-parallelogram luffing mechanism, which comprises a base 1 and a driving assembly, the base 1 is rotationally connected with a base 2, the rotation axis of the base 2 is arranged along the length direction of the base 1, the base 2 is rotationally connected with a movable arm 3, the rotation axis of the movable arm 3 is arranged along the width direction of the base 1, the movable arm 3 is rotationally connected with the drilling mast 4, the rotation axis of the drilling mast 4 is arranged along the width direction of the base 1, and a drill rod 5 is arranged on the drilling mast 4; the base 2, the movable arm 3 and the drilling mast 4 are driven to rotate by the driving assembly, so that the position and the perpendicularity of the drill rod 5 are adjusted.

[0022] In the application, the driving assembly comprises a deviation rectifying oil cylinder 6, a luffing oil cylinder 7 and a mast oil cylinder 8; the two ends of the deviation rectifying oil cylinder 6 are rotationally connected with the base 1 and the base 2 respectively, and the deviation rectifying oil cylinder 6 is extended and retracted to drive the base 2 to rotate; the two ends of the luffing oil cylinder 7 are rotationally connected with the base 2 and the movable arm 3 respectively, and the luffing oil cylinder 7 is extended and retracted to drive the movable arm 3 to rotate; the two ends of the mast oil cylinder 8 are rotationally connected with the movable arm 3 and the drilling mast 4 respectively, and the mast oil cylinder 8 is extended and retracted to drive the drilling mast 4 to rotate; the deviation rectifying oil cylinder 6, the luffing oil cylinder 7 and the mast oil cylinder 8 are connected in parallel on an oil circuit through three electric proportional valves 11; the oil circuit further comprises an oil tank 12 and a variable pressure pump.

[0023] Meanwhile, a front and rear inclination sensor 9 and a left and right inclination sensor 10 are arranged on the drilling mast 4, and the deviation rectifying oil cylinder 6, the luffing oil cylinder 7 and the mast oil cylinder 8 are controlled by a controller. Figure 4 In the transportation state, the mast oil cylinder 8 is in the retracted state, after the controller sends a command of the mast, a2 is electrified, A2 pressure oil enters the large cavity of the oil cylinder, the mast oil cylinder 8 is extended, the mast action is started, and the signal of the front and rear inclination sensor 9 is detected in real time, when the front and rear inclination is 0, the electric signal of the electric proportional valve 11 valve core a2 is disconnected; meanwhile, the signal of the left and right inclination sensor 10 is detected, when the right inclination is detected, the electric proportional valve 11 valve core a3 is moved upward, A3 pressure oil enters the large cavity of the deviation rectifying oil cylinder 6, the deviation rectifying oil cylinder 6 is extended, when the left inclination is detected, the electric proportional valve 11 valve core b3 is moved downward, B3 pressure oil enters the small cavity of the deviation rectifying oil cylinder 6, the deviation rectifying oil cylinder 6 is retracted, and when the left and right inclination is 0, the electric signal of the electric proportional valve 11 a3 is disconnected.

[0024] The above are the preferred embodiments of the application, which do not limit the protection scope of the application, so: all equivalent changes made on the basis of the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A non-parallelogram-based luffing mechanism-based drill mast plumbing device, characterized by: The base and the driving assembly are included, the base is rotatably connected with the pedestal, the rotation axis of the pedestal is arranged along the length direction of the base; the pedestal is rotatably connected with the movable arm, the rotation axis of the movable arm is arranged along the width direction of the base; the movable arm is rotatably connected with the drill mast, the rotation axis of the drill mast is arranged along the width direction of the base, and the drill rod is arranged on the drill mast; the driving assembly is used for driving the pedestal, the movable arm and the drill mast to rotate; The driving assembly includes a deviation correction oil cylinder, both ends of the deviation correction oil cylinder are rotatably connected with the base and the pedestal respectively; the deviation correction oil cylinder is extended and retracted to drive the pedestal to rotate; The driving assembly further includes an amplitude changing oil cylinder, both ends of the amplitude changing oil cylinder are rotatably connected with the pedestal and the movable arm respectively; the amplitude changing oil cylinder is extended and retracted to drive the movable arm to rotate; The driving assembly further includes a mast oil cylinder, both ends of the mast oil cylinder are rotatably connected with the movable arm and the drill mast respectively; the mast oil cylinder is extended and retracted to drive the drill mast to rotate; The front and rear inclination angle sensors and the left and right inclination angle sensors are installed on the drill mast; The deviation correction oil cylinder, the amplitude changing oil cylinder and the mast oil cylinder are connected in parallel on the oil circuit through three electric proportional valves respectively; The signals of the front and rear inclination angle sensors and the left and right inclination angle sensors are communicated to the electric proportional valves.

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