Drilling machine drill rod loading, unloading and column selecting device and loading and unloading device

Abstract

The invention relates to a drilling machine drill rod assembling, disassembling and column selecting device and an assembling and disassembling device. The drilling machine drill rod loading, unloading and column selecting device comprises a shuttle arm, a support assembly and a stroke control assembly, the stroke control assembly comprises a step limiting plate and a telescopic sliding block which are arranged on the shuttle arm, a plurality of limiting steps are arranged on the step limiting plate in the telescopic direction of the shuttle arm, and when the telescopic sliding block stretches out by different lengths, the shuttle arm slides; the telescopic sliding block can abut against different limiting steps of the stepped limiting plate so that the tongs can be opposite to different grooves. The telescopic sliding block is matched with the step limiting plate, so that automatic column selection is realized; the two telescopic cylinders with different strokes are arranged and combined in a stretching and retracting mode to obtain different stroke limits, stretching and retracting of the first telescopic cylinder and the second telescopic cylinder both run to the limiting positions of the cylinder bodies, and the movement stroke is reliable.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering machinery, and in particular relates to a drilling rig drill rod loading and unloading selection device and a loading and unloading device. Background Art

[0002] With the continuous advancement of engineering machinery technology, intelligent and automated machinery is becoming more and more popular. Improving construction efficiency and strengthening construction safety are the trends in engineering machinery structural design. The use of drill rods is very common in engineering machinery. Automatic loading and unloading and selection of drill rods is an effective means to improve construction efficiency and safety.

[0003] Taking horizontal directional drilling in the trenchless field as an example, horizontal directional drilling technology is widely used in trenchless projects such as laying underground pipelines for electricity, communications, and natural gas, and does not damage surface buildings. The horizontal directional drilling construction process mainly consists of two parts: drilling and drilling, and pulling back to expand the hole. When drilling and drilling, the drill rod needs to be moved from the drill rod box to the drill frame, and the drill rod is connected to the previous section with the power head, vise and other components and driven into the ground; when pulling back to expand the hole, the drill rod needs to be dragged out section by section and recovered into the drill rod box. Therefore, during the construction process, the drill machine frequently loads and unloads the drill rod, which takes up a lot of time.

[0004] At present, domestic and foreign machinery mainly uses drill rod boxes and shuttle arms to load and unload drill rods, which has replaced manual transportation of drill rods to the shuttle arm gripper, greatly saving the labor intensity of workers. However, the drill rods are removed from the drill rod box in rows, and the shuttle arm movement distance needs to be controlled to select the row. There are currently two main methods for solving the shuttle arm selection: First, mechanical limit is performed by manually inserting pins at different positions of the shuttle arm. This method is reliable in operation, but it requires increased labor, and the space at the pin shaft is small, the mechanism operation is more complicated, and it is easy to cause safety accidents such as pinching and collision; Second, the telescopic cylinder is used to control the telescopic extension of the shuttle arm. This method eliminates the use of manual labor and is a fully automated structure. However, the normal operation of the mechanism depends on the operating accuracy of the telescopic cylinder, which is affected by program control and hydraulic power. It is easy for the cylinder to not run in place and alignment to deviate. Summary of the invention

[0005] In view of the above problems existing in the prior art, the present invention provides a drilling rig drill rod loading and unloading selection device and a loading and unloading device, which can realize full-automatic drill rod selection with high operating accuracy.

[0006] To achieve the above object, the technical solution provided by the present invention is as follows:

[0007] In a first aspect, the present application provides a drilling rig drill rod loading and unloading selection device, comprising a shuttle arm, a bracket assembly and a stroke control assembly; the shuttle arm is arranged below a drill rod box, a gripper is arranged on the shuttle arm, a plurality of groups of grooves for accommodating drill rods are arranged in the drill rod box, the gripper is opposite to the groove, the shuttle arm is slidably connected to the drill rod box, and a driving member for driving the shuttle arm to slide is arranged on the bracket assembly;

[0008] The stroke control component includes a step limit plate and a telescopic slider arranged on the shuttle arm. The step limit plate is provided with a plurality of limit steps along the telescopic direction of the shuttle arm. When the telescopic slider is extended to different lengths, the shuttle arm slides, and the telescopic slider can abut against different limit steps of the step limit plate to make the gripper opposite to different grooves; a telescopic component for controlling the extension length of the telescopic slider is provided on the bracket assembly.

[0009] Optionally, along the sliding direction of the shuttle arm, the distances between adjacent limiting steps are equal, and the distances between adjacent limiting steps are equal to the width of the groove.

[0010] Optionally, it also includes a stopper, and along the extension direction of the telescopic slider, a limit step on the step limit block close to the telescopic slider is opposite to the stopper; when the telescopic slider is extended, the telescopic slider is located between the stopper and the limit step abutting the telescopic slider, and the distance from the side wall of the telescopic slider facing away from the stopper to the stopper is equal to the width of the groove.

[0011] Optionally, the number of grooves in the drill rod box is four, and the step limit plate is provided with three limit steps. Along the telescopic sliding block's telescopic direction, the three limit steps are step surface one, step surface two and step surface three respectively according to the distance from the telescopic sliding block from far to near;

[0012] The telescopic assembly includes a first telescopic cylinder and a second telescopic cylinder, which are connected to form a combined cylinder, one end of the combined cylinder is fixed to the bracket assembly, and the other end is connected to the telescopic slider; the first telescopic cylinder and the second telescopic cylinder both include two lengths, an extended state and a retracted state, and the extended lengths of the first telescopic cylinder and the second telescopic cylinder are different, so that the telescopic slider has four position states. When the telescopic slider is in the four different position states, the shuttle arm slides, and the telescopic slider abuts against the three step surfaces respectively or the block abuts against the step surface three times.

[0013] Optionally, the driving member includes a motor, a gear and a rack arranged at the bottom of the shuttle arm, the gear is meshed with the rack, and the motor is connected to the gear through a transmission device.

[0014] Optionally, a sliding groove is provided on the bracket assembly, and the sliding groove is used to limit the sliding direction of the telescopic slider.

[0015] Optionally, the telescopic component includes a telescopic cylinder, a sliding block is arranged below the telescopic cylinder, a sliding groove is arranged on the bracket assembly, and the sliding block slides along the sliding groove.

[0016] Optionally, a shaft sleeve is provided on the bracket assembly, a cover plate is provided on the shaft sleeve, and the sliding groove is formed between the shaft sleeve and the cover plate.

[0017] On the second aspect, the present application also provides a drilling rig drill rod loading and unloading device, including the above-mentioned drilling rig drill rod loading and unloading selection device, and also including a jacking device, which is used to lift the drill rod on the gripper into the groove of the drill rod box; when the jacking device is retracted, in the vertical direction, the top of the jacking device is below the drill rod.

[0018] Optionally, the gripper includes a slot arranged on the shuttle arm, the drill rod is clamped in the slot, the slot is opposite to the groove, and the gap between the top surface of the shuttle arm and the bottom of the drill rod box is smaller than the diameter of the drill rod.

[0019] Compared with the prior art, this application has at least the following beneficial effects:

[0020] The present invention cooperates with the step limit plate through the telescopic slider. When the telescopic slider is extended to different lengths, the shuttle arm slides, and the telescopic slider can abut against different limit steps of the step limit plate to limit the sliding position of the shuttle arm, so that the gripper is opposite to different grooves to achieve automatic column selection; the application reduces the labor intensity of workers, and can achieve the limit and automatic column selection of the shuttle arm without manual pin insertion, manual handling and other operations, avoiding the problem of personal safety hazards. The present invention obtains different stroke limits through the arrangement and combination of two telescopic cylinders with different strokes that extend and retract respectively. The extended state and retracted state of the first telescopic cylinder and the second telescopic cylinder both run to the limit position of the cylinder body, the movement stroke is reliable, and the position control accuracy of the shuttle arm is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a structural schematic diagram of a drilling rig drill rod loading and unloading device in an embodiment of the present application;

[0023] Figure 2 This is a structural schematic diagram of a drilling rig drill rod loading and unloading selection device in an embodiment of the present application;

[0024] Description of reference numerals:

[0025] 1. Grip; 2. Drill rod box; 21. Groove; 3. Lifting device; 4. Shuttle arm; 41. Step limit plate; 411. Step surface one; 412. Step surface two; 413. Step surface three; 5. Stroke control component; 51. Cover plate; 52. Block; 53. Bushing; 54. Telescopic slide block; 55. First telescopic cylinder; 551. First telescopic cylinder rod body; 56. Second telescopic cylinder; 561. Second telescopic cylinder rod body; 57. Cylinder mounting seat; 58. Sliding block; 581. Sliding groove; 6. Bracket assembly; 7. Driving member. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use.

[0027] Example 1

[0028] like Figure 1 and Figure 2 As shown, a drilling rig drill rod loading and unloading selection device includes a shuttle arm 4, a bracket assembly 6 and a stroke control assembly 5; the shuttle arm 4 is arranged below the drill rod box 2, a gripper 1 is arranged on the shuttle arm 4, the drill rod is placed on the gripper 1, a plurality of groups of grooves 21 for accommodating the drill rod are arranged in the drill rod box 2, the drill rod box 2 is open at the bottom, the gripper 1 is opposite to the groove 21, the shuttle arm 4 is slidably connected to the drill rod box 2, and a driving member 7 for driving the shuttle arm 4 to slide is arranged on the bracket assembly 6;

[0029] The travel control component 5 includes a step limit plate 41 and a telescopic slider 54 arranged on the shuttle arm 4. The step limit plate 41 is provided with a plurality of limit steps along the telescopic direction of the shuttle arm 4. When the telescopic slider 54 is extended to different lengths, the shuttle arm 4 slides, and the telescopic slider 54 can abut against different limit steps of the step limit plate 41 to make the gripper 1 opposite to different grooves 21; a telescopic component for controlling the extension length of the telescopic slider 54 is provided on the bracket assembly 6.

[0030] Driven by the driving member 7, the shuttle arm 4 slides along the drill rod box 2, and under the control of the telescopic assembly, the telescopic slider 54 extends to different lengths, so that the telescopic slider 54 can abut against different limiting steps of the step limiting plate 41 to limit the shuttle arm 4, so that the gripper 1 is opposite to different grooves 21 to achieve automatic column selection. The present application reduces the labor intensity of workers, and can achieve the limiting and automatic column selection of the shuttle arm 4 without manual pin insertion, manual handling and other operations, thereby avoiding the problem of hidden dangers to personal safety.

[0031] Example 2

[0032] The difference between this embodiment and the first embodiment is that the distances between adjacent limiting steps along the sliding direction of the shuttle arm 4 are equal, and the distance between adjacent limiting steps is equal to the width of the groove 21 .

[0033] In this embodiment, the number of grooves 21 in the drill rod box 2 is four, and the step limit plate 41 is provided with three upper limit steps. Along the telescopic direction of the telescopic slider 54, the three limit steps are respectively step surface 1 411, step surface 2 412 and step surface 3 413 according to the distance from the telescopic slider 54 from far to near;

[0034] It also includes a stopper 52, and along the extension and retraction direction of the telescopic slider 54, a limiting step on the step limiting block close to the telescopic slider 54 (i.e., step surface three 413) is opposite to the stopper 52; when the telescopic slider 54 is extended, the telescopic slider 54 is located between the stopper 52 and the limiting step abutting against the telescopic slider 54, and the distance between the side wall of the telescopic slider 54 facing away from the stopper 52 (i.e., the abutting surface of the telescopic slider 54) and the abutting surface of the stopper 52 (the side surface of the stopper 52 opposite to the step surface three 413) is equal to the width of the groove 21.

[0035] The telescopic assembly can be a telescopic cylinder. In this embodiment, in order to improve the control accuracy, the telescopic assembly includes a first telescopic cylinder 55 and a second telescopic cylinder 56 (in this embodiment, the first telescopic cylinder 55 and the second telescopic cylinder 56 are both oil cylinders, which can be oil cylinders with magnetostrictive displacement sensors, wire displacement sensor oil cylinders, etc.), the first telescopic cylinder 55 and the second telescopic cylinder 56 are connected to form a combined cylinder, one end of the combined cylinder is fixed to the bracket assembly 6 through an oil cylinder mounting seat 57, and the connection method can be assembly fixation or welding fixation, and the other end is connected to the telescopic slider 54. In this embodiment, the second telescopic cylinder rod body 561 is fixed by a pin shaft The first telescopic cylinder 55 and the second telescopic cylinder 56 are fixed on the oil cylinder mounting seat 57, the cylinder bodies of the first telescopic cylinder 55 and the second telescopic cylinder 56 are connected, and the first telescopic cylinder rod body 551 is connected to the telescopic slider 54; the first telescopic cylinder 55 and the second telescopic cylinder 56 both include two lengths, an extended state and a retracted state, and the extended lengths of the first telescopic cylinder 55 and the second telescopic cylinder 56 are different. The stroke of the first telescopic cylinder 55 is twice that of the second telescopic cylinder 56, so that the telescopic slider 54 has four position states. When the telescopic slider 54 is in the four different position states, the shuttle arm 4 slides, and the telescopic slider 54 abuts against the three step surfaces respectively or the stopper 52 abuts against the step surface 413.

[0036] The grooves 21 of the drill rod box 2 along the shuttle arm 4 from the extension to the retraction direction are the first row, the second row, the third row, and the fourth row in sequence; the elongation of the first telescopic cylinder 55 is greater than that of the second telescopic cylinder 56, and the row selection process is as follows:

[0037] When the first telescopic cylinder 55 and the second telescopic cylinder 56 are fully extended (extended state), the shuttle arm 4 retracts until the telescopic slider 54 abuts against the step surface 1 411, and at this time, the gripper 1 on the shuttle arm 4 is opposite to the first row of grooves 21;

[0038] When the first telescopic cylinder 55 extends and the second telescopic cylinder 56 retracts (i.e., the first telescopic cylinder 55 is in an extended state and the second telescopic cylinder 56 is in a retracted state), the shuttle arm 4 retracts until the telescopic slider 54 abuts against the second step surface 412, and at this time, the gripper 1 on the shuttle arm 4 is opposite to the second row of grooves 21;

[0039] When the first telescopic cylinder 55 is retracted and the second telescopic cylinder 56 is extended (i.e., the first telescopic cylinder 55 is in a retracted state and the second telescopic cylinder 56 is in an extended state), the shuttle arm 4 is retracted until the telescopic slider 54 abuts against the step surface 3 413, and at this time, the gripper 1 on the shuttle arm 4 is opposite to the third row of grooves 21;

[0040] When the first telescopic cylinder 55 retracts and the second telescopic cylinder 56 retracts (i.e. the first telescopic cylinder 55 is in the retracted state and the second telescopic cylinder 56 is in the retracted state), the shuttle arm 4 retracts until the stopper 52 abuts against the step surface 413, and the gripper 1 on the shuttle arm 4 is opposite to the fourth row of grooves 21.

[0041] The present invention obtains different stroke limits by arranging and combining two telescopic cylinders with different strokes to extend and retract them respectively. The extension and retraction of the first telescopic cylinder 55 and the second telescopic cylinder 56 both run to the limit position of the cylinder body, the movement stroke is reliable, the position control accuracy of the shuttle arm 4 is high, and the selection is accurate.

[0042] In this embodiment, the driving member 7 includes a motor, a gear and a rack disposed at the bottom of the shuttle arm 4. The gear is meshed with the rack, and the motor is connected to the gear through a transmission device. In this embodiment, the transmission device is a transmission rod. The rotation of the motor drives the transmission device to rotate, and then drives the gear to rotate. Under the meshing action of the gear and the rack, the shuttle arm 4 can be driven to extend and retract, so that the gripper 1 on the shuttle arm 4 rotates the grooves 21 of different rows.

[0043] A shaft sleeve 53 is installed on the bracket assembly 6 , a cover plate 51 is provided on the shaft sleeve 53 , a sliding groove is formed between the shaft sleeve 53 and the cover plate 51 , and the telescopic slider 54 is slidably connected to the sliding groove, thereby limiting the sliding direction of the telescopic slider 54 .

[0044] A sliding block 58 is disposed below the first telescopic cylinder 55 and / or the second telescopic cylinder 56, and a sliding groove 581 is disposed on the bracket assembly 6. The sliding block 58 slides along the sliding groove 581, thereby limiting the freedom of the oil cylinder and increasing safety.

[0045] Example 3

[0046] The present embodiment provides a drilling rig drill rod loading and unloading device, including the drilling rig drill rod loading and unloading selection device in Example 2, and also includes a jacking device 3, which is used to jack up the drill rod on the gripper 1 into the groove 21 of the drill rod box 2; when the jacking device 3 is retracted, in the vertical direction, the top of the jacking device is below the drill rod, so that the jacking device will not touch the drill rod during the sliding of the shuttle arm 4 along the drill rod box 2, thereby avoiding affecting the movement of the drill rod selection process.

[0047] The gripper 1 includes a slot arranged on the shuttle arm 4, in which the drill rod is clamped, and the slot is opposite to the groove 21. The gap between the top surface of the shuttle arm 4 and the bottom of the drill rod box 2 is smaller than the diameter of the drill rod. Since the periodic device needs to be retracted during the movement of the shuttle arm 4, the drill rod in the drill rod box 2 can be prevented from running out by controlling the gap between the top surface of the shuttle arm 4 and the bottom of the drill rod box 2.

[0048] In order to ensure the stability of the drill rod loading and unloading process, the drill rod box 2 is provided with a jacking device 3 and a drilling rig drill rod loading and unloading selection device on both sides along the length direction of the drill rod.

[0049] When loading drill rods into the drill rod box 2, the shuttle arm 4 is moved under the drive of the motor until the slot (and the drill rod in the slot) is opposite to the groove 21 of the row of drill rods to be loaded, and then the jacking device 3 is raised to lift the drill rod into the groove 21. Then the shuttle arm 4 moves to continue to load drill rods onto the gripper 1, and the shuttle arm 4 moves until the top surface of the shuttle arm 4 is opposite to the groove 21 (at this time, the drill rod installed in the groove 21 can be limited), and the jacking device 3 is retracted (to avoid affecting the movement of the drill rod). When the drill rod on the shuttle arm 4 is opposite to the groove 21 of the next row of drill rods to be loaded, the jacking device 3 is raised again to load the drill rod into the drill rod box 2.

[0050] When the drill rod is unloaded from the drill rod box 2, the shuttle arm 4 is moved so that the slot on the shuttle arm 4 is opposite to the groove 21 in the drill rod box 2, and the drill rod can fall into the slot; the shuttle arm 4 is moved to take the drill rod out.

[0051] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0052] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A drilling rig drill pipe loading and unloading selection device, characterized in that: It includes a shuttle arm, a bracket assembly and a stroke control component; the shuttle arm is arranged below the drill rod box, a gripper is arranged on the shuttle arm, a plurality of grooves for accommodating drill rods are arranged in the drill rod box, the gripper is opposite to the groove, the shuttle arm is slidably connected to the drill rod box, and a driving member for driving the shuttle arm to slide is arranged on the bracket assembly; The stroke control component includes a step limit plate and a telescopic slider arranged on the shuttle arm. The step limit plate is provided with a plurality of limit steps along the telescopic direction of the shuttle arm. When the telescopic slider is extended to different lengths, the shuttle arm slides, and the telescopic slider can abut against different limit steps of the step limit plate to make the gripper opposite to different grooves; a telescopic component for controlling the extension length of the telescopic slider is provided on the bracket assembly.

2. The drilling rig drill pipe loading and unloading selection device according to claim 1 is characterized in that: Along the sliding direction of the shuttle arm, the distances between adjacent limiting steps are equal, and the distances between adjacent limiting steps are equal to the width of the groove.

3. The drilling rig drill pipe loading and unloading selection device according to claim 2 is characterized in that: It also includes a stopper, and along the extension direction of the telescopic slider, the limit step on the step limit block close to the telescopic slider is opposite to the stopper; when the telescopic slider is extended, the telescopic slider is located between the stopper and the limit step abutting against the telescopic slider, and the distance from the side wall of the telescopic slider away from the stopper to the stopper is equal to the groove width.

4. The drilling rig drill pipe loading and unloading and selecting device according to claim 3 is characterized in that: There are four rows of grooves in the drill rod box, and the step limit plate is provided with three limit steps. Along the telescopic sliding block's telescopic direction, the three limit steps are step surface 1, step surface 2 and step surface 3 according to the distance from the telescopic sliding block from far to near; The telescopic assembly includes a first telescopic cylinder and a second telescopic cylinder, which are connected to form a combined cylinder, one end of the combined cylinder is fixed to the bracket assembly, and the other end is connected to the telescopic slider; the first telescopic cylinder and the second telescopic cylinder both include two lengths, an extended state and a retracted state, and the extended lengths of the first telescopic cylinder and the second telescopic cylinder are different, so that the telescopic slider has four position states. When the telescopic slider is in the four different position states, the shuttle arm slides, and the telescopic slider abuts against the three step surfaces respectively or the block abuts against the step surface three times.

5. The drilling rig drill pipe loading and unloading and selecting device according to claim 1 is characterized in that: The driving member comprises a motor, a gear and a rack arranged at the bottom of the shuttle arm, the gear is meshed with the rack, and the motor is connected with the gear through a transmission device.

6. The drilling rig drill pipe loading and unloading selection device according to claim 1 is characterized in that: The bracket assembly is provided with a sliding groove, and the sliding groove is used to limit the sliding direction of the telescopic slider.

7. The drilling rig drill pipe loading and unloading selection device according to claim 1 is characterized in that: The telescopic assembly comprises a telescopic cylinder, a sliding block is arranged below the telescopic cylinder, a sliding groove is arranged on the bracket assembly, and the sliding block slides along the sliding groove.

8. The drilling rig drill pipe loading and unloading and selecting device according to claim 6 is characterized in that: The support assembly is provided with a shaft sleeve, a cover plate is provided on the shaft sleeve, and the sliding groove is formed between the shaft sleeve and the cover plate.

9. A drilling rig drill pipe loading and unloading device, characterized in that: It comprises the drilling rig drill rod loading and unloading selection device as described in any one of claims 1 to 8, and also comprises a jacking device, wherein the jacking device is used to jack up the drill rod on the gripper into the groove of the drill rod box; when the jacking device is in the retracted state, in the vertical direction, the top end of the jacking device is below the drill rod.

10. The drilling rig drill pipe loading and unloading device according to claim 9, characterized in that: The gripper comprises a clamping slot arranged on the shuttle arm, the drill rod is clamped in the clamping slot, the clamping slot is opposite to the groove, and the gap between the top surface of the shuttle arm and the bottom of the drill rod box is smaller than the diameter of the drill rod.

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