CN115680506A - A Verticality Adjustment Structure for Rotary Excavator - Google Patents

Abstract

The invention discloses a verticality adjustment structure for a rotary excavator, which comprises a mast and a support arm. The front and rear ends of the top of the support arm are respectively hinged with first electric push rods, and one side of the mast is provided with two mutually symmetrical ball seats. , the other end of the first electric push rod is provided with a first ball stud, the outer surface of the first ball stud is slidably connected with the inner cavity of the ball seat, the mast is fixedly provided with a verticality detection mechanism, and the support arm and the mast are connected with Buffer mechanism, the opposite sides of the lower end of the mast are respectively provided with an angle adjustment mechanism with a locking function, the angle adjustment mechanism includes planetary gears meshing with each other, an adjustable bracket with adjustable spacing and a connecting bracket that can rotate around the planetary gears, the mast The bottom is provided with a clamping mechanism for locking the mast. The present invention realizes the automatic leveling of the drill bit during the construction process by setting an angle adjustment mechanism on the mast combined with a horizontal detection device, and improves the drilling accuracy. At the same time, a clamping mechanism is provided to ensure that the drill The verticality of the drill pipe during the hole.

Description

A Verticality Adjustment Structure for Rotary Excavator

technical field

The invention relates to the field of construction engineering, in particular to a verticality adjustment structure for a rotary excavator.

Background technique

Rotary excavator is a comprehensive drilling rig, which has the characteristics of fast hole forming, less pollution and strong mobility. The short auger bit is used for dry excavation, and the rotary bit can also be used for wet excavation in the case of mud protection. The rotary excavator can cooperate with the hammer to drill the hard stratum and carry out the hole digging operation. If it is matched with the expansion head drill, the hole reaming operation can be carried out at the bottom of the hole. The rotary excavator adopts multi-layer telescopic drill pipe, which has less auxiliary drilling time, low labor intensity, no need for mud circulation and slag discharge, and saves costs. It is especially suitable for the foundation construction of urban construction.

During the construction of the existing rotary excavator, due to the variable ground flatness, the drill bit cannot always be vertical to the ground, causing the rotary excavator to be unable to carry out construction on the ground with poor flatness. The Chinese patent with the publication number CN113202421A discloses "a A safety monitoring device for rotary drilling rigs", which adjusts the verticality of the drill bit of the rotary drilling machine relative to the ground by adjusting the height of the electric telescopic rods on both sides. The inclination of the drill bit makes the drilling precision error larger, and the final entry position will have a certain deviation.

Contents of the invention

In order to solve the problems existing in the above-mentioned prior art, the present invention provides a verticality adjustment structure for rotary excavators. By setting an angle adjustment mechanism on the mast combined with a horizontal detection device, the drill bit can be automatically leveled during the construction process and the drill can be improved. hole precision, and the present invention is provided with a clamping mechanism to ensure the verticality of the drill pipe during the drilling process of the rotary excavator.

Technical scheme of the present invention is as follows:

A verticality adjustment structure for a rotary excavator, comprising a mast and a support arm, the front and rear ends of the top of the support arm are respectively hinged with first electric push rods, and the side of the mast close to the support arm is provided with two two mutually symmetrical ball seats, the other end of the first electric push rod is provided with a first ball stud, the outer surface of the first ball stud is slidably connected with the inner cavity of the ball seat, and the mast is fixedly arranged There is a verticality detection mechanism, a buffer mechanism is connected between the support arm and the mast, angle adjustment mechanisms with locking functions are respectively provided on the opposite sides of the lower end of the mast, and the angle adjustment mechanisms include mutually engaging The planetary gear, the adjustable bracket with adjustable spacing and the connecting bracket that can rotate around the planetary gear, the bottom of the mast is provided with a clamping mechanism for locking the mast.

Further, the angle adjustment mechanism includes two adjustment brackets arranged in parallel up and down, the inner wall of the adjustment bracket is close to the outer wall of the mast, the adjustment bracket includes a first support frame and a second support frame, and the first support A second electric push rod is connected between the frame and the second support frame.

Further, the connecting bracket is a U-shaped bracket, any one end of the connecting bracket is provided with a third electric push rod, the two ends of the connecting bracket are respectively provided with second ball studs, and the second ball studs The outer circumferential surface is provided with an arc-shaped limiting groove, and the outer side of the adjustment bracket is provided with a spherical inner cavity, and a third limiting block is arranged in the spherical inner cavity, and the second ball stud is positioned on the third The limiting block and the arc-shaped limiting groove are slidably connected with the spherical inner cavity under the limiting action of the arc-shaped limiting groove.

Further, the planetary gear includes a sun gear and a ring gear, a plurality of planetary gears are meshed between the sun gear and the ring gear, the sun gear is connected to the output end of the motor, and the connecting bracket is fixedly connected to a transmission shaft, The ring gear is fixedly connected to the transmission shaft, and drives the connecting bracket to rotate around the transmission shaft.

Further, the buffer mechanism includes a spring and a universal joint transmission assembly, the universal joint transmission assembly is flexibly connected to the left side of the support arm symmetrically front and rear, and the output end of the universal joint transmission assembly is fixedly connected to the universal joint transmission assembly. a spring, and the other end of the spring is fixedly connected with the mast.

Further, the universal joint transmission assembly includes a first universal joint yoke, a universal joint yoke and a second universal joint yoke, and the inner cavity of the first universal joint yoke connects with the universal joint yoke through the universal joint The inner chamber transmission connection of the second universal joint yoke, the front and rear positions on the left side of the support arm are respectively provided with rotation grooves, the input end of the first universal joint yoke is provided with a first limit block, and the first The outer surface of the limiting block is slidingly connected with the inner surface of the rotating groove.

Further, the right side of the mast is provided with two limit rods symmetrically front and rear, a chute is arranged inside the limit rod, and a second limit block is set at the output end of the second universal joint fork. The second limiting block is sleeved in the limiting rod through the sliding slot and is slidably connected with the sliding slot.

Further, a drill pipe is arranged parallel to the left side of the mast, and the upper and lower sides between the drill pipe and the mast are respectively fixedly connected with a first fixing frame and a second fixing frame, and the verticality detection mechanism includes a first A verticality detector and a second verticality detector, the first verticality detector is located on the front side of the first fixed frame, and the second verticality detector is located on the left side of the second fixed frame.

Further, the clamping mechanism includes a fourth electric push rod, and several clamping blocks are arranged at the bottom of the fourth electric push rod.

Further, the bottom end of the support arm is fixedly connected with a slewing mechanism, and the top of the slewing mechanism is fixedly provided with a control room parallel to the support arm, and the front and rear sides of the slewing mechanism are respectively connected with running Tracks, the top of the mast is provided with a pulley frame, the tail end of the control room is provided with a hoist, the hoist is wound with a wire rope, the wire rope passes through the pulley frame and the other end of the wire rope is connected to the top of the drill pipe Fixed connection.

Compared with the prior art, the beneficial effects of the present invention are:

(1) The present invention is equipped with a verticality detector and an angle adjustment mechanism, and the angle adjustment mechanism adjusts the drill pipe through the horizontal induction result to ensure that the drill pipe remains vertical under the condition of uneven ground or vehicle body tilt, and simultaneously The tightening mechanism has a locking function, which can lock the drill pipe, avoiding the polarization generated during the drilling process from affecting the verticality of the drill pipe, and ensuring the stability of the drill pipe during work.

(2) The present invention is provided with several electric push rods. Compared with the electro-hydraulic push rod, the electric push rod is driven by a screw and adopts thread self-locking, which has high positioning accuracy and good self-locking performance, no risk of liquid leakage, and is convenient for long-term use Maintenance during the process; at the same time, the verticality of the mast on the front side of the rotary excavator is adjusted by controlling the telescopic length of the front and rear push rods respectively through the horizontal induction results.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a partial sectional view of the present invention;

Figure 3 is an enlarged view of A in Figure 2;

Fig. 4 is a structural schematic diagram of the angle adjustment mechanism of the present invention;

Fig. 5 is a sectional view of the angle adjustment mechanism of the present invention.

In the accompanying drawings, the list of parts represented by each label is as follows:

1. Mast; 2. Support arm; 21. Rotation slot; 3. The first electric push rod; 31. The first ball stud; 4. Ball seat; 5. Verticality detection mechanism; 51. The first fixed frame; 52 , the second fixed frame; 53, the first perpendicularity detector; 54, the second perpendicularity detector; 6, the buffer mechanism; 61, the spring; 62, the universal joint transmission assembly; 621, the first universal joint fork; 622, universal cross shaft; 623, second universal joint fork; 624, first limit block; 625, second limit block; 63, limit rod; 631, chute; 7, angle adjustment mechanism; 71 , planetary gear; 711, sun gear; 712, ring gear; 713, planetary gear; 72, adjustment bracket; 721, first support frame; 722, second support frame; 723, second electric push rod; 724, spherical inner Cavity; 725, the third limit block; 73, connecting bracket; 731, the third electric push rod; 732, the second ball pin; 733, arc-shaped limit groove; 734, transmission shaft; 8, drill rod; 9 10. Control room; 11. Running track; 12. Pulley frame; 13. Hoist; 14. Wire rope; 15. Clamping mechanism; 151. The fourth electric push rod; 152. Block.

Detailed ways

In order to make the content of the present invention easier to understand, the technical solution of the present invention will be further described below in conjunction with specific embodiments and drawings, but the present invention is not limited thereto.

Please refer to Figure 1, Figure 2 and Figure 3, the invention provides a technical solution: a verticality adjustment structure for a rotary excavator, including a mast 1 and a support arm 2, and the support arm 2 is supported by a support block connecting the front and rear The first electric push rod 3 is respectively hinged at the front and rear ends of the top of the support arm 2, and the mast 1 is adjusted according to the length of the free ends of the two first electric push rods 3 before and after adjustment, and the first electric push rod is used at the same time 3 To improve the positioning accuracy of the drilling, two ball seats 4 are fixed and symmetrically arranged on the right side of the mast 1, and the other end of the first electric push rod 3 is provided with a first ball stud 31, and the outer surface of the first ball stud 31 is in contact with the The inner cavity of the ball seat 4 is slidingly connected, and the first ball stud 31 forms a ball joint with the ball seat 4, so that the first electric push rod 3 and the mast 1 can rotate at any angle around the center of the first ball stud 31, and the mast 1. A verticality detection mechanism 5 is fixedly installed. The verticality detection mechanism 5 is used to detect the verticality of the drill pipe 8. A buffer mechanism 6 is connected between the support arm 2 and the mast 1. The opposite sides of the lower end of the mast 1 are respectively provided with The angle adjustment mechanism 7 with locking function, the inner side of the angle adjustment mechanism 7 is always attached to the mast 1, the angle adjustment mechanism 7 includes planetary gears 71 that mesh with each other, an adjustable bracket 72 with adjustable spacing, and a The bracket 73 is connected, and the bottom of the mast 1 is provided with a clamping mechanism 15 for locking the mast 1 .

4, the angle adjustment mechanism 7 includes two adjustment brackets 72 arranged in parallel up and down. The inner wall of the adjustment bracket 72 is always close to the outer wall of the mast 1. The adjustment bracket 72 includes a first support frame 721 and a second support frame 722. The first support frame A second electric push rod 723 is connected between 721 and the second support frame 722 , and the second electric push rod 723 can be adjusted to adapt to different sizes of the mast 1 and improve the applicability of the angle adjustment mechanism 7 .

5, the connecting bracket 73 is a U-shaped bracket, and any one end of the connecting bracket 73 is provided with a third electric push rod 731, and the two ends of the connecting bracket 73 are respectively provided with a second ball stud 732, and the outer side of the second ball stud 732 is The circumferential surface is provided with an arc-shaped limiting groove 733, and the outer side of the adjusting bracket 72 is provided with a spherical inner cavity 724, and a third limiting block 725 is arranged in the spherical inner cavity 724, and the second ball stud pins 732 on both sides are positioned at the third limiting position. The position block 725 and the arc-shaped limit groove 733 are respectively slidably connected with the spherical inner cavity 724 on the upper and lower sides of the adjustment bracket 72 under the limit action of the arc-shaped limit groove 733, and the first support frame 721 and the second support frame 722 can be connected around the connected second ball. Head pin 732 rotates within a certain range.

Specifically, the planetary gear 71 includes a sun gear 711 and a ring gear 712. There are several planetary gears 713 meshed between the sun gear 711 and the ring gear 712. The sun gear 711 is connected to the output end of the motor, and the motor drives the sun gear 711 to rotate. 73 is fixedly connected with a transmission shaft 734, the ring gear 712 is fixedly connected with the transmission shaft 734, drives the adjustment bracket 72 and the connection bracket 73 to rotate around the transmission shaft 734 at the same time, thereby adjusting the verticality of the mast 1, and the deceleration effect of the planetary gear 71 Next, when the sun gear 711 rotates, the ring gear 712 drives the connecting bracket 73 to rotate slowly, which is convenient for adjusting the verticality of the mast 1 .

Specifically, the buffer mechanism 6 includes a spring 61 and a universal joint transmission assembly 62. The left side of the support arm 2 is symmetrically connected to the universal joint transmission assembly 62, and the output end of the universal joint transmission assembly 62 is fixedly connected to the spring 61. The other end of 61 is fixedly connected with mast 1.

Specifically, the universal joint transmission assembly 62 includes a first universal joint fork 621, a universal joint cross shaft 622 and a second universal joint fork 623, and the inner cavity of the first universal joint fork 621 connects with the second universal joint The inner cavity of the second universal joint fork 623 is connected by transmission. The front and rear positions on the left side of the support arm 2 are respectively provided with a rotating groove 21 with an inclined axis. The rotating groove 21 is a stepped circular groove. The input end of the first universal joint fork 621 A circular first limiting block 624 is provided, the outer surface of the first limiting block 624 is slidingly connected with the inner surface of the rotating groove 21 , and the first limiting block 624 can rotate around the axis in the rotating groove 21 .

Specifically, two limit rods 63 are arranged symmetrically front and rear on the right side of the mast 1, and a chute 631 is arranged inside the limit rod 63, and a second limit block 625 is arranged on the output end of the second universal joint fork 623, and The limit block 625 is sleeved in the limit rod 63 through the chute 631 and is slidably connected with the chute 631. The annular protrusion on the edge of the chute 631 limits the moving distance of the second limit block 625, and the spring 61 also Sleeved in the limit rod 63, under the action of the spring 61, the shaking speed of the mast 1 is slowed down, so as to prevent the mast 1 from greatly moving and causing impact.

Specifically, a drill pipe 8 is arranged parallel to the left side of the mast 1, and the upper and lower sides between the drill pipe 8 and the mast 1 are respectively fixedly connected with a first fixed frame 51 and a second fixed frame 52, and the first fixed frame 51 and the second fixed frame The frame 52 is respectively used for fixing the first perpendicularity detector 53 and the second perpendicularity detector 54 , and is used for fixing the positional relationship between the mast 1 and the drill pipe 8 .

Specifically, the verticality detection mechanism 5 includes a first verticality detector 53 and a second verticality detector 54, the first verticality detector 53 is located at the front side of the first fixed frame 51, and the second verticality detector 54 is located at On the left side of the second fixed mount 52, wherein the first verticality detector 53 is used to detect the verticality of the mast 1 on the front side, and the detection result is output to the control motor for controlling the third electric pushrod 731 at the same time. The third electric push rod 731 on the angle adjustment mechanism 7 on both sides is telescopic at the same time, so that the angle adjustment mechanism 7 always clamps the mast 1, and under the limit action of the third limit block 725 and the arc limit groove 733, The adjustment bracket 72 connected to the third electric push rod 731 on the angle adjustment mechanism 7 is moved, and at the same time, the upper and lower two adjustment brackets 72 rotate around the connected second ball stud 732 respectively until the first verticality detector 53 Detect that the mast 1 is in a vertical state; the second verticality detector 54 is used to detect the verticality of the mast 1 on the left side, and simultaneously control the motor of the sun gear 711 according to the detection result, by rotating the sun gear 711, thereby Drive the ring gear 712 and the connecting bracket 73 to rotate until the second verticality detector 54 detects that the mast 1 is in a vertical state.

Specifically, the clamping mechanism 15 includes a fourth electric push rod 151, and the bottom of the fourth electric push rod 151 is provided with several blocks 152. When the fourth electric push rod 151 is extended, the blocks 152 can extend into the ground and face the mast. 1. Carry out locking and fixing to prevent the drilling rod 8 from being polarized during the downward rotation cutting process, causing the drill bit to tilt and causing the hole to deviate.

Specifically, the bottom end of the support arm 2 is fixedly connected with a rotary mechanism 9, and the top of the rotary mechanism 9 is fixedly provided with a control room 10 parallel to the support arm 2. The rotary mechanism 9 simultaneously drives the support arm 2 and the control room 10 to rotate to a suitable position. The front and rear sides of the slewing mechanism 9 are respectively connected with running crawlers 11 parallel to each other to facilitate the movement of the rotary drilling rig. The top of the mast 1 is provided with a pulley frame 12, and the tail end of the control room 10 is provided with a winch 13. The winch 13 is wound with a wire rope 14. The wire rope 14 passes through the pulley frame 12 and the other end of the wire rope 14 is fixedly connected to the top of the drill pipe 8 .

Working principle of the present invention:

When the running track 11 moves to a specific working position, the slewing mechanism 9 drives the control room 10 and the support arm 2 to rotate to a suitable position, respectively adjusts the telescopic distance of the first electric push rod 3 on both sides until the drill rod 8 moves to the drilling position Nearby, the slewing mechanism 9 stops moving; at this time, the verticality of the mast 1 is detected by the first verticality detector 53, and the control motor of the third electric push rod 731 is controlled according to the detection result, and the angle adjustment mechanism 7 on both sides is controlled. The third electric push rod 731 expands and contracts at the same time, and under the limiting action of the third limit block 725 and the arc-shaped limit groove 733, the adjustment bracket 72 connected to the third electric push rod 731 on the angle adjustment mechanism 7 Move, while the upper and lower two adjustment brackets 72 rotate around the connected second ball stud 732 respectively, until the first verticality detector 53 detects that the mast 1 is in a vertical state; the second verticality detector 54 is used to detect The verticality of the mast 1 on the left side, at the same time, according to the detection results, the motor that controls the sun gear 711 is controlled, and by rotating the sun gear 711, the ring gear 712 and the connecting bracket 73 are driven to rotate until the second verticality detector 54 It is detected that the mast 1 is in a vertical state; the fourth electric push rod 151 is stretched, and the clamping block 152 can extend into the ground and lock and fix the mast 1 to prevent the drill pipe 8 from appearing in the downward rotation cutting process. Polarization, which causes the tilt of the drill bit, deflects the hole.

The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made by using the content of the description of the present invention, or directly or indirectly used in other related technical fields, shall be The same reasoning is included in the patent protection scope of the present invention.

Claims (10)

1. The utility model provides a straightness adjustment structure that hangs down for digging machine soon which characterized in that: the device comprises a mast (1) and a support arm (2), wherein the front end and the rear end of the top of the support arm (2) are respectively hinged with a first electric push rod (3), one side of the mast (1) close to the support arm (2) is provided with two mutually symmetrical ball seats (4), the other end of the first electric push rod (3) is provided with a first ball pin (31), the outer surface of the first ball pin (31) is in sliding connection with the inner cavity of the ball seats (4), the mast (1) is fixedly provided with a verticality detection mechanism (5), a buffer mechanism (6) is connected between the support arm (2) and the mast (1), two opposite sides of the lower end of the mast (1) are respectively provided with an angle adjusting mechanism (7) with a locking function, the angle adjusting mechanism (7) comprises a planetary gear (71) which are mutually meshed, an adjustable interval adjusting bracket (72) and a connecting bracket (73) which can rotate around the planetary gear (71), and the bottom of the mast (1) is provided with a clamping mechanism (15) for locking the mast (1).

2. The verticality adjusting structure for the rotary drilling machine as claimed in claim 1, wherein: the angle adjusting mechanism (7) comprises two adjusting supports (72) which are arranged in parallel up and down, the inner walls of the adjusting supports (72) are tightly attached to the outer wall of the mast (1), each adjusting support (72) comprises a first support frame (721) and a second support frame (722), and a second electric push rod (723) is connected between the first support frame (721) and the second support frame (722).

3. The verticality adjusting structure for the rotary drilling machine as claimed in claim 1, wherein: the connecting bracket (73) is a U-shaped bracket, any end of the connecting bracket (73) is provided with a third electric push rod (731), two ends of the connecting bracket (73) are respectively provided with a second ball head pin (732), the outer circumferential surface of the second ball head pin (732) is provided with an arc-shaped limiting groove (733), the outer side of the adjusting bracket (72) is provided with a spherical inner cavity (724), a third limiting block (725) is arranged in the spherical inner cavity (724), and the second ball head pin (732) is in sliding connection with the spherical inner cavity (724) under the limiting effect of the third limiting block (725) and the arc-shaped limiting groove (733).

4. The verticality adjusting structure for the rotary drilling machine as claimed in claim 1, wherein: the planetary gear (71) comprises a sun gear (711) and a gear ring (712), a plurality of planetary gears (713) are meshed between the sun gear (711) and the gear ring (712), the sun gear (711) is connected with the output end of the motor, the connecting support (73) is fixedly connected with a transmission shaft (734), and the gear ring (712) is fixedly connected with the transmission shaft (734) to drive the connecting support (73) to rotate around the transmission shaft (734).

5. The verticality adjusting structure for the rotary drilling machine as claimed in claim 1, wherein: the damping mechanism (6) comprises a spring (61) and a universal joint transmission assembly (62), the front side and the rear side of the left side of the supporting arm (2) are symmetrically and movably connected with the universal joint transmission assembly (62), the spring (61) is fixedly connected to the output end of the universal joint transmission assembly (62), and the other end of the spring (61) is fixedly connected with the mast (1).

6. The verticality adjusting structure for the rotary drilling machine as claimed in claim 5, wherein: universal joint drive assembly (62) include first universal joint fork (621), universal cross (622) and second universal joint fork (623), the inner chamber of first universal joint fork (621) passes through universal cross (622) with the inner chamber transmission of second universal joint fork (623) is connected, rotation groove (21) have been seted up respectively to support arm (2) left side front and back position, the input of first universal joint fork (621) is provided with first stopper (624), the surface of first stopper (624) with the internal surface sliding connection who rotates groove (21).

7. The verticality adjusting structure for the rotary drilling machine as claimed in claim 6, wherein: mast (1) right side front and back symmetry is provided with two gag lever posts (63), be provided with spout (631) in gag lever post (63), the output of second universal joint fork (623) is provided with second stopper (625), second stopper (625) pass through spout (631) cover is established in gag lever post (63) and with spout (631) sliding connection.

8. The verticality adjusting structure for the rotary drilling machine as claimed in claim 1, wherein: the device is characterized in that a drill rod (8) is arranged on the left side of the mast (1) in parallel, a first fixing frame (51) and a second fixing frame (52) are fixedly connected to the upper side and the lower side of the position between the drill rod (8) and the mast (1) respectively, the perpendicularity detection mechanism (5) comprises a first perpendicularity detector (53) and a second perpendicularity detector (54), the first perpendicularity detector (53) is located on the front side of the first fixing frame (51), and the second perpendicularity detector (54) is located on the left side of the second fixing frame (52).

9. The verticality adjusting structure for the rotary drilling machine as claimed in claim 1, wherein: the clamping mechanism (15) comprises a fourth electric push rod (151), and a plurality of clamping blocks (152) are arranged at the bottom of the fourth electric push rod (151).

10. The verticality adjusting structure for the rotary drilling machine as claimed in claim 1, wherein: support arm (2) bottom fixedly connected with rotation mechanism (9), rotation mechanism (9) top fixed be provided with control room (10) that support arm (2) are parallel to each other, both sides are connected with operation track (11) that are parallel to each other respectively around rotation mechanism (9), mast (1) top is provided with pulley yoke (12), control room (10) tail end is provided with hoist engine (13), hoist engine (13) winding has wire rope (14), wire rope (14) are worn to establish pulley yoke (12) just the other end of wire rope (14) with drilling rod (8) top fixed connection.

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