CN102996085B - Horizontal directional drilling machine drill rod positioning device linked with power head - Google Patents

Abstract

A drilling rod positioning device for a horizontal directional drilling rig linked with a power head, including a link mechanism and a pulling mechanism installed between the main arm travel racks of the drilling rig, and the lower ends of the front bracket and the rear bracket are hinged to the front base and the rear base respectively , the two ends of the long pull rod are respectively hinged with the upper ends of the front bracket and the rear bracket to form a linkage mechanism; The two ends of the pull rod are respectively hinged with the rear bracket and the linkage plate, and the other end of the linkage plate is hinged with a bearing that can roll on the opening groove of the card slot plate. The drill rod positioning device of the horizontal directional drilling rig realizes its own movement by mechanical linkage with the power head. When the power head moves back, it pushes the bearing to roll and pulls the connecting rod mechanism to stand upright. When the power head moves forward, the connecting rod mechanism is pulled downward by the gravity of the drill rod Front lodging, scientific design, high reliability, good safety, can reduce labor intensity, save cost, economical and practical.

Description

A drilling rod positioning device for horizontal directional drilling rig linked with power head

technical field

The invention relates to an auxiliary device for a horizontal directional drilling machine, in particular to a drilling rod positioning device for a horizontal directional drilling machine linked with a power head.

Background technique

Due to the relatively heavy drill pipes of medium and large horizontal directional drilling rigs, in order to realize the accurate positioning and stabbing of the drill pipes, in addition to being equipped with a random crane, it is usually also designed with a drill pipe support and positioning device. At present, the drill pipe support and positioning device of horizontal directional drilling rigs is generally realized by the power device and at the same time relying on human manipulation. In addition, it is necessary to design a safety device to prevent collision between it and the power head, which is not only complicated in structure and difficult to operate Troublesome, time-consuming, inefficient, and costly.

Contents of the invention

The technical problem to be solved by the present invention is to provide a drilling rod positioning device for a horizontal directional drilling machine that does not require additional power drive and is linked with the power head, so as to overcome the above-mentioned shortcomings in the prior art.

The technical solution to solve the above problems is: a horizontal directional drilling rig drilling rod positioning device linked with the power head, including the main arm of the drilling rig and the power head moving back and forth along the main arm of the drilling rig, the drilling rod positioning device is installed on the upper part of the main arm of the drilling rig Between the walking racks, it includes a link mechanism and a pulling mechanism. The link mechanism is located at the front of the main arm of the drilling rig, including a front bracket, a rear bracket, a front base, a rear base and a long pull rod. The front and rear bases are respectively Fixed on the front and back of the main arm of the drilling rig, the lower end of the front bracket is hinged to the front base, the lower end of the rear bracket is hinged to the rear base, and the two ends of the long pull rod are respectively hinged to the upper ends of the front bracket and the rear bracket, thus forming a forward-rotating 90° link mechanism; the pulling mechanism is located behind the rear bracket, including a short tie rod, a linkage plate, and a chute seat plate and a slot plate fixed on the main arm of the drilling rig in turn. The front end of the short tie rod is connected to the upper end of the rear bracket Hinged, the rear end is hinged to the linkage plate through the pin shaft that can slide back and forth in the chute of the chute seat plate, and the other end of the linkage plate is hinged to the bearing that can roll on the opening slot of the card slot plate; the opening slot is slightly Lower than the bottom surface of the power head, when the power head retreats, the bearing is pushed to roll back along the open groove so as to pull the linkage mechanism to stand upright. When the power head advances, the linkage mechanism falls forward under the pull of the gravity of the drill pipe.

Its further technical solution is: the chute seat plate includes a left chute seat plate and a right chute seat plate with the same structure, the pin shaft is installed in the chute of the left and right chute seat plates, and the clamp The slot plate includes a left slot plate and a right slot plate with the same structure, the bearing is installed on the rolling plane of the opening groove of the left and right slot plates, and the linkage plate is installed between the left and right slot plates.

Its further technical solution is: the tail end of the opening slot of the slot plate has an inclined bayonet lower than the rolling plane of the opening slot.

The two ends of the long pull rod are respectively hinged with the front bracket and the rear bracket through the pull rod fork, and the two ends of the long pull rod are respectively connected with the pull rod fork through left-handed threads and right-handed threads.

The two ends of the short tie rod are respectively hinged with the rear bracket and the linkage plate through the tie rod fork, and the two ends of the short tie rod are respectively connected with the tie rod fork through left-handed threads and right-handed threads.

The structure of the front bracket and the rear bracket is the same, including double columns constituting the main body of the bracket, and positioning rollers are symmetrically installed on the inner sides of the upper ends of the double columns.

Due to the adoption of the above technical solution, a horizontal directional drilling machine drill rod positioning device linked with the power head of the present invention has the following beneficial effects:

1. As one of the drilling rod positioning devices of the horizontal directional drilling rig linked with the power head of the present invention relies on the mechanical linkage with the power head to realize its own movement to position the drill rod, no complicated electrical or hydraulic drive is required, and no additional manual operation is required , which can avoid the increased cost of using complex power equipment, and at the same time can save labor, reduce labor intensity and improve efficiency.

2. Because one kind of drilling rod positioning device of the horizontal directional drilling rig linked with the power head of the present invention realizes the erection and lodging actions of the drill rod positioning device through linkage with the power head, when the power head retreats, the power head pushes the connecting rod device to automatically erect, And through the mechanism, the tail bearing rolls and falls into the specially designed inclined bayonet of the opening groove of the card slot plate, and the connecting rod is locked in the upright state, so that the drill pipe can be easily disassembled and installed; when the power head advances, the device automatically turns into a fallen state , does not hinder the forward movement of the power head and the normal operation of the drilling rig, and there is no possibility of collision with the power head, so the reliability of the device is higher and the safety is better.

3. A drilling rod positioning device of a horizontal directional drilling machine linked with a power head of the present invention has scientific design, simple structure, high efficiency, and is economical and practical. the

Description of drawings

Figures 1 to 5: Structural schematic diagram of a horizontal directional drilling rig drill rod positioning device linked with the power head of the present invention:

Figure 1 - Standing state (at this time, the power head is at the tail of the main arm of the drilling rig, the rolling bearing at the tail end of the linkage plate falls into the bayonet on the slope of the opening groove, the connecting rod mechanism is locked in the standing state, and the drill pipe is placed on the positioning roller to realize positioning),

Figure 2 - Lodging state (due to the forward movement of the power head, the rolling bearing at the end of the linkage plate floats out of the bayonet on the slope, and the connecting rod mechanism is in a lodging state),

Figure 3—Enlarged view of part A of Figure 1,

Figure 4—Enlarged view of Part B of Figure 1,

Figure 5—Schematic diagram of the structure of the card slot plate;

Figure 6: Stereoscopic rendering of the vertical state;

Figure 7: Stereoscopic rendering of the lodging state;

Figure 8: Enlarged view of part C in Figure 6.

In the picture:

1—main arm of drilling rig, 101—walking rack, 2—front base, 3—front bracket, 31—double column, 32—positioning roller, 4—tie rod fork, 5—long pull rod, 6—rear base, 7— Rear bracket, 8—short pull rod, 9—chute seat plate, 91—chute, 92—pin shaft, 10—power head, 11—linkage plate, 12—slot plate, 121—open slot, 122—rolling Plane, 123—inclined bayonet socket, 13—bearing.

Detailed ways

A drilling rod positioning device for a horizontal directional drilling rig linked with a power head, comprising a drilling rig main arm 1 and a power head 10 that moves forward and backward along the drilling rig main arm, the drilling rod positioning device is installed between the traveling rack 101 on the upper part of the drilling rig main arm The room includes a link mechanism and a pulling mechanism. The link mechanism is located at the front of the main arm of the drilling rig, including a front bracket 3, a rear bracket 7, a front base 2, a rear base 6 and a long pull rod 5. The front and rear bases are respectively Fixed on the front and back of the main arm of the drilling rig, the lower end of the front bracket 3 is hinged to the front base 2, the lower end of the rear bracket 7 is hinged to the rear base 6, and the two ends of the long pull rod 5 are respectively hinged to the upper ends of the front bracket and the rear bracket, thus forming A connecting rod mechanism that can rotate forward by 90°; the pulling mechanism is located behind the rear bracket 7, including a short pull rod 8, a linkage plate 11, and a chute seat plate 9 and a slot plate 12 fixed on the main arm of the drilling rig in turn , the front end of the short pull rod 8 is hinged with the upper end of the rear bracket, the rear end is hinged with the linkage plate 11 (front end) through the pin shaft 92 that can slide back and forth in the chute 91 of the chute seat plate, and the other end of the linkage plate (rear end) ) is hinged with the bearing 13 that can roll on the opening groove 121 of the card slot plate; when the power head retreats, the bearing is pushed to roll back along the opening groove so as to pull the connecting rod mechanism upright. Pull down and fall forward.

Described chute seat plate 9 comprises the left chute seat plate and the right chute seat plate of identical structure, and described pin shaft 92 is installed in the chute 91 of left and right chute seat plate, and the short tie rod that is connected with pin shaft Located between the left and right chute seat plates, the draw-in plate 12 includes a left draw-in plate and a right draw-in plate with the same structure, and the bearing 13 is installed on the rolling plane 122 of the opening groove 121 of the left and right draw-in plate Above, the linkage plate 11 is installed between the left and right slot plates.

The tail end of the slot 121 of the slot plate has an inclined bayonet 123 lower than the rolling plane 122 of the slot.

The two ends of the long pull rod 5 are respectively hinged with the front bracket 3 and the rear bracket 7 through the pull rod fork 4, and the two ends of the long pull rod are respectively connected with the pull rod fork through a left-handed thread and a right-handed thread; Tight) can adjust the distance between the long pull rod and the front and rear brackets to ensure the free rotation of the linkage mechanism.

The two ends of the short tie rod 8 are respectively hinged with the rear bracket 7 and the linkage plate 11 through the tie rod fork 4, and the two ends of the short tie rod are respectively connected with the tie rod fork through a left-handed thread and a right-handed thread. Rotating the short pull rod (loosening or tightening) can adjust the distance between the short pull rod, the rear bracket and the pin shaft, and ensure the free rotation of the pulling mechanism.

The front bracket and the rear bracket have the same structure, including double uprights 31 forming the bracket main body, and positioning rollers 32 are symmetrically installed on the inner sides of the upper ends of the double uprights.

Brief description of working principle

See accompanying drawings 1 to 7: the front and rear brackets 3 and 7 are respectively connected to the front and rear bracket bases 2 and 6 through hinge pins, and the two ends of the long tie rod 5 are respectively connected to the tie rod fork 4 through left-handed and right-handed threads and finally It is hinged on the front and rear brackets 3 and 7, and forms a parallel four-bar linkage with the front and rear brackets 3 and 7 to realize forward 90-degree parallel rotation. Rotating the long pull rod 5 can accurately adjust the length to ensure the parallel rotation of the two front and rear brackets 3 and 7. After the adjustment is completed, it is locked by two nuts. Short tie rod 8 is similar. The parallel four-bar linkage mechanism is pulled by the short pull rod 8 to realize the vertical action of the front and rear brackets 3 and 7. The chute seat plate 9, the linkage plate 11 and its hinge pin 92 not only have the function of transmitting the pulling force, but also ensure that they do not Until the power head 10 that moves forward and backward is interfered with, the force that makes the linkage mechanism move upwards is realized by the lateral push of the rear edge of the power head 10 that moves backward to the bearing 13 .

When the power head 10 moves to the rear end of the main arm 1 of the drilling rig, the rear edge of the power head pushes the bearing 13 to roll along the rolling plane of the open groove, thereby pulling the connecting rod mechanism to turn upwards. When the power head moves backward, the bearing 13 slides into the inclined plane , under the limitation of the lower plane of the power head 10, the position of the bearing 13 is locked in the bayonet on the inclined plane, and the whole linkage mechanism is maintained under the state that the front and rear brackets 3 and 7 of the drill rod are in an upright state, and the drill The rod is placed on the four positioning rollers on the two vertical drill rod brackets 3 and 7 to realize the positioning of the drill rod without restricting its rotational freedom, and then the drill jack of the power head is screwed into the drill rod After the screw buckle, continue drilling operations.

When the power head 10 starts to move forward, the rear edge of the power head moves out of the position of the inclined plane bayonet of the positioning slot plate, and the movement constraint of the lower plane of the power head 10 to the bearing 13 is released, and now the drill pipe has also completed its continuous operation. As the power head 10 continues to move forward, the whole linkage mechanism will gradually fall forward under the action of gravity, so as to automatically avoid the forward movement of the power head 10 without affecting the drilling operation of the power head. The drilling and pulling back operation of each drill pipe is the action process of repeating the above cycle.

Claims (6)

1. the horizontal directional drilling machine drill pipe positioner linking with unit head, the unit head (10) that comprises rig principal arm (1) and seesaw along rig principal arm, it is characterized in that: described drill pipe positioner is arranged between the walking rack (101) on rig principal arm top, comprise linkage and pulling mechanism, described linkage is positioned at rig principal arm front portion, comprise front rack (3), tail-bracket (7), front base (2), rear base (6) and long draw (5), before, rear base is separately fixed at before and after rig principal arm, front rack (3) lower end and front base (2) are hinged, tail-bracket (7) lower end and rear base (6) are hinged, the two ends of long draw (5) are hinged with the upper end of front rack and tail-bracket respectively, thereby form one and can rotate forward the linkage of 90 °, described pulling mechanism is positioned at tail-bracket (7) afterwards, comprise short rod (8), linkage board (11) and be fixed on successively chute seat board (9) and the clamping groove plate (12) on rig principal arm, front end and the tail-bracket upper end of short rod (8) are hinged, rear end is hinged with linkage board (11) by the bearing pin (92) sliding before and after can be in the chute of chute seat board (91), the other end of linkage board with can be hinged at the upper bearing (13) rolling of the open slot of clamping groove plate (121), retreat and pull linkage upright along open slot rolling thereby promote bearing when unit head retreats, linkage lodging forward under the pulling of the Action of Gravity Field of drilling rod when unit head advances.

2. a kind of horizontal directional drilling machine drill pipe positioner linking with unit head according to claim 1, it is characterized in that: described chute seat board (9) comprises left chute seat board and the right rail seat board that structure is identical, described bearing pin (92) is arranged in the chute (91) of left and right chute seat board, described clamping groove plate (12) comprises left clamping groove plate and the right clamping groove plate that structure is identical, described bearing (13) is arranged in the rolling plane (122) of left and right clamping groove plate open slot (121), and described linkage board (11) is arranged between left and right clamping groove plate.

3. a kind of horizontal directional drilling machine drill pipe positioner linking with unit head according to claim 1 and 2, is characterized in that: the tail end of the open slot (121) of described clamping groove plate has an inclined-plane bayonet socket (123) lower than open slot rolling plane (122).

4. a kind of horizontal directional drilling machine drill pipe positioner linking with unit head according to claim 3, it is characterized in that: the two ends of described long draw (5) are hinged with front rack (3) and tail-bracket (7) by rod end yoke (4) respectively, and the two ends of long draw are connected with rod end yoke with right-handed thread by left hand thread respectively.

5. a kind of horizontal directional drilling machine drill pipe positioner linking with unit head according to claim 4, it is characterized in that: the two ends of described short rod (8) are hinged with tail-bracket (7) and linkage board (11) by rod end yoke (4) respectively, and the two ends of described short rod are connected with rod end yoke with right-handed thread by left hand thread respectively.

6. a kind of horizontal directional drilling machine drill pipe positioner linking with unit head according to claim 5, it is characterized in that: the structure of described front rack and tail-bracket is identical, comprise the two columns (31) that form bracket main body, the inner side, upper end of two columns is symmetrically installed with positioning roller (32).