CN219012505U

CN219012505U - Amplitude changing mechanism of rotary drilling rig

Info

Publication number: CN219012505U
Application number: CN202222754774.6U
Authority: CN
Inventors: 王海金; 刘轩; 张力; 张梦慈; 王继新; 莫绍鹏; 单昌猛; 李嘉华; 吴婉婷; 王鹏
Original assignee: Xuzhou XCMG Foundation Construction Machinery Co Ltd
Current assignee: Xuzhou XCMG Foundation Construction Machinery Co Ltd
Priority date: 2022-10-12
Filing date: 2022-10-19
Publication date: 2023-05-12
Anticipated expiration: 2032-10-19

Abstract

The utility model discloses an amplitude variation mechanism of a rotary drilling rig, which is arranged on a rotary drilling rig main body, wherein the amplitude variation mechanism comprises a mast push rod, an amplitude variation push rod and a mast, a sliding rail is arranged on the back side of the mast, a sliding block is embedded in the sliding rail, and a support is arranged on the sliding block; one end of the mast push rod is hinged with the support, and the other end of the mast push rod is hinged with the rotary drilling rig main body; one end of the amplitude-variable push rod is hinged with the bottom of the mast, and the other end of the amplitude-variable push rod is hinged with the main body of the rotary drilling rig; the amplitude variation mechanism further comprises a controller and an angle sensor, the angle sensor is arranged on the mast, and the controller is electrically connected with the angle sensor, the mast push rod and the amplitude variation push rod; when the rotary drilling rig works, the included angle between the mast and the ground is obtained in real time through the angle sensor; acquiring the inclination degree of the mast based on the included angle through a controller; driving the amplitude variation mechanism to dynamically adjust the mast according to the inclination degree through the controller; the utility model can improve the adaptability of the equipment in the transportation and working states.

Description

Amplitude changing mechanism of rotary drilling rig

Technical Field

The utility model relates to an amplitude variation mechanism of a rotary drilling rig, and belongs to the technical field of engineering machinery.

Background

The rotary drilling rig is a construction machine for taking out soil, forming holes and injecting piles, and occupies the position of a main machine type in the construction of cast-in-place concrete cast-in-place piles at home and abroad due to the characteristics of high efficiency, less pollution and more functions. The loading of the rotary drilling rig is divided into a general loading and a special loading, and the luffing mechanism is arranged on the transformed general loading. The working device of the rotary drilling rig can be fixed on the upper vehicle through an amplitude variation mechanism. Because of the need of bearing large torque and heavy load, the luffing mechanism is a key component of the whole machine, and the design structure and the installation mode of the luffing mechanism directly determine the rationality and the stability of the layout of the whole machine.

Previous similar horns have not considered the adaptability of the device during transport and working conditions, since they only focus on the stability during working conditions. When the rotary drilling rig is to be transported to different areas for working, the mast must be removed because of too high a mast, and the mast electric pushing cylinder and other components must be removed together during transportation. Because the mast and other parts are huge, the heavy disassembly and reassembly work is carried out once in each transferring process, so that the utilization efficiency of the rotary drilling rig is greatly reduced; furthermore, the whole machine of the rotary drilling rig is too high to operate in a narrow region.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, provides an amplitude changing mechanism of a rotary drilling rig, and solves the technical problems that the existing amplitude changing mechanism of the rotary drilling rig is not suitable for equipment in the transportation and working states, and is not suitable in the actual use process.

In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:

the utility model provides an amplitude changing mechanism of a rotary drilling rig, which is arranged on a rotary drilling rig main body, wherein the amplitude changing mechanism comprises a mast push rod, an amplitude changing push rod and a mast, a sliding rail is arranged on the back side of the mast, a sliding block is embedded in the sliding rail, and a support is arranged on the sliding block; one end of the mast push rod is hinged with the support, and the other end of the mast push rod is hinged with the rotary drilling rig main body; one end of the amplitude-variable push rod is hinged with the bottom of the mast, and the other end of the amplitude-variable push rod is hinged with the main body of the rotary drilling rig.

Optionally, the amplitude pushing rod and the mast pushing rod are both provided with two, and are symmetrically arranged along two sides of the middle part of the mast.

Optionally, the mast push rod and the amplitude push rod adopt electric push rods or hydraulic push rods.

Optionally, a storage groove is formed in the top of the mast, an upper mast is embedded in the storage groove, and a goose head frame is arranged at the top of the upper mast; the inner wall of the storage groove is connected with the outer wall of the upper mast through threads.

Optionally, a gear motor is arranged at the bottom of the storage groove, a driving shaft is connected to a main shaft of the gear motor, and a limiting block is arranged at the top of the driving shaft; a through hole is formed in the middle of the upper mast, and sliding grooves are formed in the inner walls of the two sides of the through hole respectively; the driving shaft penetrates through the through hole, and the limiting block is embedded in the sliding groove.

Optionally, the luffing mechanism further comprises a controller and an angle sensor, wherein the angle sensor is arranged on the mast, and the controller is electrically connected with the angle sensor, the mast push rod and the luffing push rod.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model provides an amplitude variation mechanism of a rotary drilling rig, which has compact and novel structure, and a large triangle structure is formed by an amplitude variation push rod, a mast push rod and a mast, so that the amplitude of the mast can be flexibly regulated through the large triangle structure; meanwhile, due to the arrangement of the movable support, on one hand, the stable and smooth amplitude changing process can be ensured, and on the other hand, the length of the mast pushing rod can be reduced; meanwhile, the goose head frame is connected into the mast in a threaded manner, and the height of the goose head frame can be adjusted through rotation, so that the device is suitable for different working states; when in transportation, the space is saved by folding and shrinking; during operation, the perpendicularity of the mast is adjusted, so that the working quality is ensured.

Drawings

FIG. 1 is a perspective view of a luffing mechanism of a rotary drilling rig according to an embodiment of the present utility model;

FIG. 2 is a side view of a luffing mechanism of a rotary drilling rig according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a mast according to a first embodiment of the present utility model;

FIG. 4 is a schematic view showing a retracted structure of a gooseneck boom according to an embodiment of the present utility model;

marked in the figure as:

1. the rotary drilling rig comprises a rotary drilling rig main body 2, a mast push rod, 3, a variable amplitude push rod, 4, a mast, 41, a sliding rail, 42, a sliding block, 43, a support, 44, an angle sensor, 45, a storage groove, 5, a gooseneck frame, 51, an upper mast, 52, a gear motor, 53, a driving shaft, 54, a limiting block, 55, a through hole, 56 and a sliding chute.

Detailed Description

The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.

Embodiment one:

as shown in fig. 1 to 3, an embodiment of the present utility model provides an amplitude variation mechanism of a rotary drilling rig, which is disposed on a rotary drilling rig main body 1; the amplitude variation mechanism comprises a mast push rod 2, an amplitude variation push rod 3 and a mast 4, a slide rail 41 is arranged on the back side of the mast 4, a slide block 42 is embedded in the slide rail 41, and a support 43 is arranged on the slide block 42; one end of the mast push rod 2 is hinged with the support 43, and the other end is hinged with the rotary drilling rig main body 1; one end of the amplitude-variable push rod 3 is hinged with the bottom of the mast 4, and the other end is hinged with the rotary drilling rig main body 1; the mast pushing rod 2, the amplitude changing pushing rod 3 and the mast 4 form a big triangle structure.

In order to ensure the strength and stability of the amplitude variation mechanism, the amplitude variation push rod 3 and the mast push rod 2 are both arranged in two and symmetrically arranged along the two sides of the middle part of the mast 4.

In order to realize electric control, the luffing mechanism further comprises a controller and an angle sensor 44, wherein the angle sensor 44 is arranged on the mast 4, and the controller is electrically connected with the angle sensor 44, the mast push rod 2 and the luffing push rod 3. The mast push rod 2 and the amplitude change push rod 3 adopt electric push rods or hydraulic push rods.

When the folding device is folded, the amplitude changing push rod 3 stretches out, the bottom of the mast 4 rotates upwards and downwards, the support 43 slides to the top on the sliding rail 41, and meanwhile, the mast push rod 2 contracts to drag the support 43 to the bottom on the sliding rail 41, so that the support 43 is prevented from reaching the limit position of the top of the sliding rail 41; up to the mast 4 level;

during operation, the amplitude-variable push rod 3 is contracted, the bottom of the mast 4 is rotated downwards and upwards, the support 43 slides towards the bottom on the sliding rail 41, and meanwhile, the mast push rod 2 stretches out to drag the support 43 towards the top on the sliding rail 41, so that the support 43 is prevented from reaching the limit position of the bottom of the sliding rail 41; until the mast 4 is vertical.

As shown in fig. 4, a storage groove 45 is formed in the top of the mast 4, an upper mast 51 is embedded in the storage groove 45, and a goose head frame 5 is arranged on the top of the upper mast 51; the inner wall of the accommodating groove 45 is connected with the outer wall of the upper mast 51 through threads; a gear motor 52 is arranged at the bottom of the accommodating groove 45, a driving shaft 53 is connected to a main shaft of the gear motor 52, and a limiting block 54 is arranged at the top of the driving shaft 53; the middle part of the upper mast 51 is provided with a through hole 55, and the inner walls of the two sides of the through hole 55 are respectively provided with a sliding groove 56; the driving shaft 53 is penetrated into the through hole 55, and the limiting block 54 is embedded into the sliding groove 56; when the gear motor 52 rotates, the driving shaft 53 is driven to rotate, the driving shaft 53 drives the limiting block 54 to rotate, the limiting block 54 drives the upper mast 51 to rotate, and when the upper mast 51 rotates, lifting of the upper mast 51 is achieved under the action of threads.

When the rotary drilling rig works:

1. the angle between the mast 4 and the ground is acquired in real time by the angle sensor 44.

2. Acquiring the inclination degree of the mast 4 based on the included angle through a controller;

the inclination degree P is as follows:

wherein A is the included angle between the mast 4 and the ground.

3. Driving the amplitude variation mechanism to dynamically adjust the mast 4 according to the inclination degree through the controller;

if the inclination degree P is more than 1, the mast 4 deviates from a vertical line in a clockwise direction, the amplitude changing push rod 3 is controlled by the controller to extend, and the mast push rod 2 is contracted; at this time, the mast 4 rotates around the counterclockwise direction.

If the inclination degree P is less than 1, the mast 4 deviates from a vertical line around the anticlockwise direction, the amplitude changing push rod 3 is controlled by the controller to shrink, and the mast push rod 2 extends out; at this time, the mast 4 rotates in the clockwise direction.

If the inclination degree p=1, the mast 4 is not deviated from the vertical line, and the controller keeps the luffing jib 3 and the mast jib 2 inactive.

Wherein, anticlockwise direction and clockwise direction take figure 2 as benchmark, and the contained angle is the contained angle of mast and dig rig main part 1 one side ground soon.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.

Claims

1. The amplitude changing mechanism of the rotary drilling rig is arranged on a rotary drilling rig main body and is characterized by comprising a mast push rod, an amplitude changing push rod and a mast, wherein a sliding rail is arranged on the back side of the mast, a sliding block is embedded in the sliding rail, and a support is arranged on the sliding block; one end of the mast push rod is hinged with the support, and the other end of the mast push rod is hinged with the rotary drilling rig main body; one end of the amplitude-variable push rod is hinged with the bottom of the mast, and the other end of the amplitude-variable push rod is hinged with the main body of the rotary drilling rig.

2. The luffing mechanism of a rotary drilling rig according to claim 1, wherein two luffing pushrods and two mast pushrods are symmetrically arranged along two sides of the middle of the mast.

3. The luffing mechanism of a rotary drilling rig according to claim 1, wherein the mast push rod and the luffing push rod are electric push rods or hydraulic push rods.

4. The luffing mechanism of a rotary drilling rig according to claim 1, wherein a storage groove is formed in the top of the mast, an upper mast is embedded in the storage groove, and a goose head frame is arranged at the top of the upper mast; the inner wall of the storage groove is connected with the outer wall of the upper mast through threads.

5. The luffing mechanism of a rotary drilling rig according to claim 4, wherein a speed reducing motor is arranged at the bottom of the storage groove, a driving shaft is connected to a main shaft of the speed reducing motor, and a limiting block is arranged at the top of the driving shaft; a through hole is formed in the middle of the upper mast, and sliding grooves are formed in the inner walls of the two sides of the through hole respectively; the driving shaft penetrates through the through hole, and the limiting block is embedded in the sliding groove.

6. The luffing mechanism of a rotary drilling rig according to claim 1, further comprising a controller and an angle sensor, wherein the angle sensor is disposed on the mast, and wherein the controller is electrically connected to the angle sensor, the mast pushrod, and the luffing pushrod.