Rotating structure of light anchoring drilling machine

Abstract

The utility model relates to the technical field of drilling machine rotating structures, in particular to a light anchoring drilling machine rotating structure which comprises an anchoring drilling machine body, a pneumatic motor is installed at the rear end in the anchoring drilling machine body, and a connecting shaft is installed at the front end in the anchoring drilling machine body through a first shaft seat. A planetary reducer composed of an inner gear ring, a sun gear, a planet gear and a retainer is installed between the connecting shaft and the pneumatic motor, a transmission shaft is installed on the sun gear and fixedly installed through a second shaft seat, the output end of the pneumatic motor is fixedly connected with the transmission shaft, a protruding shaft is installed on the inner gear ring, and the rear end of the connecting shaft is close to the protruding shaft. And a transmission sleeve sliding along the connecting shaft is sleeved between the convex shaft and the connecting shaft at the position of the convex tooth II. The on-off state of the connecting shaft and the convex shaft is determined through the transmission sleeve, when a drill bit is clamped to drive the connecting shaft to stop rotating, the transmission sleeve can move to be disconnected from the convex shaft in a transmission mode, and therefore the situation that an operator slips out of the hand or the arm is strained is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotary structure technical field of drilling machine, concretely relates to a rotary structure of light anchor drilling machine. BACKGROUND

[0002] Anchor drilling machine is the equipment for landslide and dangerous rock body anchoring engineering in geological disaster prevention. It is used for landslide control and dangerous rock body anchoring engineering of hydropower station, railway and highway side slope, controls building displacement and high side slope rock body anchoring engineering, city deep foundation pit support and foundation reinforcement engineering hole, blasting hole of blasting engineering and tunnel pipe shed support hole etc.

[0003] Anchor drilling machine has large caterpillar type and light handheld type, wherein the light handheld type is blocked in drilling when encountering hard rock in the drilling process, the rotation speed of drill bit can be reduced instantaneously, but the motor or motor driven cannot stop in time or still rotates by inertia after stopping, which is reflected on anchor drilling machine as sudden rotation, if handheld is not stable, it can lead to direct hand-off, if handheld is stable, it can drive the arm of operator to rotate, causing arm strain, and the rotary structure of existing anchor drilling machine cannot guarantee the safety of handheld operator. UTILITY MODEL CONTENTS

[0004] The utility model discloses in order to realize above-mentioned purpose specifically adopts following technical scheme:

[0005] A rotary structure of light anchor drilling machine, including anchor drilling machine body, the rear end position in anchor drilling machine body is installed with pneumatic motor, the front end position in anchor drilling machine body is installed with connecting shaft through axle seat one, and the planetary reducer that is composed of inner tooth ring, sun gear, planet wheel and retainer is installed between connecting shaft and pneumatic motor, the transmission shaft is installed on sun gear, and transmission shaft is installed fixedly through axle seat two, and the output end of pneumatic motor is fixedly connected with transmission shaft, the convex shaft is installed on inner tooth ring, and the rear end of connecting shaft is close to convex shaft, a plurality of convex teeth two of equal interval are fixedly installed on the outer periphery of the rear end of connecting shaft, a plurality of convex teeth one of equal interval are fixedly installed on the outer periphery of convex shaft, and the transmission sleeve that slides along connecting shaft is sleeved between the connecting shaft of convex shaft and convex teeth two position, a plurality of convex teeth three of equal interval are fixedly installed on the inner wall of transmission sleeve, and convex teeth three, convex teeth one and convex teeth two are mutually engaged transmission.

[0006] Further, the fixed cover is fixedly installed on the front side of inner tooth ring, the coaxial position fixed installation of transmission shaft is located at the front end of fixed cover of convex shaft, and the clearance distance of convex shaft and connecting shaft is no less than 0.5 centimeters.Fixed cover fixes convex shaft and inner tooth ring, and simultaneously offsets transmission shaft and retainer, facilitating the installation of convex shaft.

[0007] Further, the front end of the transmission sleeve is fixedly provided with a convex ring, the front side of the convex ring is provided with a fixed plate, the outer side of the fixed plate is fixedly provided with a mounting plate for clamping the convex ring together with the fixed plate, the front side of the fixed plate is provided with a supporting seat, and the supporting seat and the fixed plate are fixedly provided with an extension rod.

[0008] Further, the supporting seat is provided with a rotating speed sensor close to the connecting shaft, an all-in-one display and control machine is arranged on the anchor drilling machine body, and the rotating speed sensor and the extension rod are electrically connected with the all-in-one display and control machine. Whether the transmission sleeve slides and the convex shaft is disconnected depends on the rotating speed of the connecting shaft. When drilling normally, the rotating speed is high and the connecting shaft does not stop rotating. When the drill bit is stuck, the rotating speed is zero or greatly reduced, so that the extension rod works to disconnect.

[0009] Further, the rear end of the inner wall of the transmission sleeve is provided with a sliding smooth surface, and the surface of the sliding smooth surface is in sliding contact with the surface of the first convex tooth. When the third convex tooth and the convex shaft are disconnected, the transmission sleeve with the sliding smooth surface part can still support the connecting shaft and the convex shaft.

[0010] Further, the inner diameter of the transmission sleeve at the position of the sliding smooth surface is smaller than the inner diameter of the transmission sleeve at the position of the third convex tooth, and the rear end of the third convex tooth and the front end of the first convex tooth are both provided with an inverted bevel. Since the transmission sleeve moves, the inverted bevel is arranged to expand the contact angle, so as to facilitate the resetting of the transmission sleeve on the convex shaft.

[0011] Further, the convex ring is provided with a plurality of ball grooves, and each ball groove is provided with a steel ball. The steel ball is in rolling contact with the surface of the fixed plate and the mounting plate, thereby reducing the friction resistance and wear between them.

[0012] Further, at least two positioning sliding sleeves are arranged on the supporting seat at positions different from the extension rod, each positioning sliding sleeve is provided with a positioning rod sliding along the positioning sliding sleeve, and the rear end of the positioning rod is fixedly arranged on the fixed plate. The extension rod is used for position fixing to avoid deviation.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The utility model determines the on-off state of the connecting shaft and the convex shaft through the transmission sleeve. When the drill bit is stuck and the connecting shaft stops rotating, the transmission sleeve can move and disconnect from the convex shaft. Thus, the output rotation of the pneumatic motor received by the convex shaft cannot be output to the stopped connecting shaft, thereby avoiding the situation that the force is finally applied to the operator, resulting in dropping or pulling the arm.

[0015] 2. The utility model discloses a fixed plate and mounting plate are fixed to the clamping of the convex ring on the transmission sleeve, meet the rotation demand of transmission sleeve with connecting axle and convex axle, and meet the axial movement demand of telescopic link driving lower along connecting axle.

[0016] 3. The utility model discloses a steel ball as convex ring and the surface contact of fixed plate and mounting plate can reduce the influence of mutual friction resistance on the rotating speed of connecting axle, and also reduce the friction noise and reduce the abrasion.

[0017] 4. The utility model discloses a section of sliding smooth surface is arranged in the transmission sleeve, when convex tooth three and convex axle are separated, the transmission sleeve can still support connecting axle and convex axle and transmission axle, and ensure that reliable fixation can be maintained after transmission is disconnected. DRAWINGS

[0018] Figure 1 It is the installation schematic drawing of the transmission sleeve in the utility model;

[0019] Figure 2 It is the sectional view of the transmission sleeve in the utility model;

[0020] Figure 3 It is the explosion drawing of the utility model;

[0021] Figure 4 It is the perspective view of the utility model;

[0022] Figure 5 It is the sectional view of the utility model;

[0023] Figure 6 It is the internal structure diagram of the utility model.

[0024] Reference numerals: 1, anchor drilling machine body; 2, connecting axle; 3, pneumatic motor; 4, transmission axle; 5, inner tooth ring; 6, planetary gear; 7, sun gear; 8, retainer; 9, fixed cover; 10, convex axle; 11, convex tooth one; 12, convex tooth two; 13, transmission sleeve; 14, convex tooth three; 15, sliding smooth surface; 16, convex ring; 17, fixed plate; 18, mounting plate; 19, support seat; 20, telescopic link; 21, positioning rod; 22, positioning sliding sleeve; 23, rotating speed sensor; 24, steel ball; 25, ball groove; 26, axle seat one; 27, axle seat two; 28, display control all-in-one machine. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment.

[0026] The application provides a rotating structure of a light anchor drill machine, mainly solves the problem that the rotating structure of the existing anchor drill machine cannot guarantee the safety of the hand-held operator, and provides the following technical scheme, which will be described in detail below Figure 1 Figure 6 The application provides a rotating structure of a light anchor drill machine, mainly solves the problem that the rotating structure of the existing anchor drill machine cannot guarantee the safety of the hand-held operator, and provides the following technical scheme, which will be described in detail below

[0027] The rotating structure of the light anchor drill machine comprises an anchor drill machine body 1, a pneumatic motor 3 is installed at a rear end position in the anchor drill machine body 1, a transmission shaft 4 is installed in the anchor drill machine body 1 at the front side of the pneumatic motor 3 through a shaft seat 2, the output end of the pneumatic motor 3 is fixedly connected with the transmission shaft 4, a sun gear 7 is fixedly installed on the transmission shaft 4 at a position close to the front end, an inner tooth ring 5 is installed at the outer side of the sun gear 7, a planetary gear 6 is installed between the inner tooth ring 5 and the sun gear 7, the inner tooth ring 5 and the sun gear 7 are in meshing transmission through the planetary gear 6, a retainer 8 fixedly connected with the planetary gear 6 is sleeved on the transmission shaft 4, a connecting shaft 2 is installed in the anchor drill machine body 1 at the front side of the sun gear 7 through a shaft seat 1, the front end part of the connecting shaft 2 extends out of the anchor drill machine body 1, and threads are arranged on the connecting shaft 2 outside the anchor drill machine body 1, the above is the main structure of the existing pneumatic anchor drill machine, the pneumatic motor 3 is driven to rotate by using compressed gas, the inner tooth ring 5, the sun gear 7 and the planetary gear 6 form a planetary reducer structure, the rotating speed of the pneumatic motor 3 is reduced, the torque is increased, and then the torque is transmitted to the connecting shaft 2, and the connecting shaft 2 is connected with an anchor rod for use;

[0028] A fixed cover 9 is fixedly installed at the front side of the inner tooth ring 5 away from the pneumatic motor 3, a convex shaft 10 is fixedly installed at the coaxial position of the front end of the fixed cover 9 and the transmission shaft 4, the rear end of the connecting shaft 2 in the anchor drill machine body 1 is close to the convex shaft 10, the gap distance between the convex shaft 10 and the connecting shaft 2 is not less than 0.5 cm, a plurality of convex teeth 2 are fixedly installed at equal intervals on the outer periphery of the rear end of the connecting shaft 2, and a plurality of convex teeth 1 are fixedly installed at equal intervals on the outer periphery of the convex shaft 10;

[0029] The transmission sleeve 13 which slides along the connecting shaft 2 is sleeved between the convex shaft 10 and the connecting shaft 2 at the position of the convex teeth 2, a plurality of convex teeth 3 are fixedly installed at equal intervals on the inner wall of the transmission sleeve 13, the convex teeth 3 are in meshing transmission with the convex teeth 1 and the convex teeth 2, the convex ring 16 is fixedly installed at the front end of the transmission sleeve 13, the fixed plate 17 is installed at the front side of the convex ring 16, and the mounting plate 18 which clamps the convex ring 16 by cooperating with the fixed plate 17 is fixedly installed at the outer side of the fixed plate 17;

[0030] ​The front side of the fixed plate 17 is provided with a support seat 19, and a telescopic rod 20 is fixedly installed between the support seat 19 and the fixed plate 17. The telescopic rod 20 is any one of pneumatic type, hydraulic type or electric type. In the embodiment, the telescopic rod 20 is electric type. A rotating speed sensor 23 is installed on the support seat 19 and close to the connecting shaft 2. A display and control all-in-one machine 28 is installed on the anchor drilling machine body 1. The rotating speed sensor 23 and the telescopic rod 20 are electrically connected with the display and control all-in-one machine 28.

[0031] In use, the pneumatic motor 3 drives the transmission shaft 4 to rotate, and the planetary reducer structure composed of the inner tooth ring 5, the sun gear 7 and the planet gears 6 reduces the rotating speed and increases the torque. Then the power is transmitted to the convex shaft 10. Since the transmission sleeve 13 is sleeved between the connecting shaft 2 and the convex shaft 10, and the planetary reducer structure composed of the inner tooth ring 5, the sun gear 7 and the planet gears 6, the connecting shaft 2 is driven to rotate to output power. When the drill bit is stuck and the rotating speed of the connecting shaft 2 is suddenly blocked, the rotating speed sensor 23 can quickly identify that the rotating speed of the connecting shaft 2 is zero or sharply reduced. When the display and control all-in-one machine 28 reaches the preset triggering condition according to the detected rotating speed data, the telescopic rod 20 is controlled to retract. Since the fixed plate 17 and the mounting plate 18 clamp the convex ring 16, the transmission sleeve 13 is moved forward to release the sleeving transmission with the convex shaft 10. The rotating speed of the pneumatic motor 3 is high, but after the reduction of the reducer, the rotating speed is greatly reduced. At the same time, the drill bit is stuck, and the connecting shaft 2 stops rotating or the rotating speed is greatly reduced. At this time, the transmission sleeve 13 stops rotating or the rotating speed is very low, and the telescopic rod 20 can drive the transmission sleeve 13 to move axially;

[0032] At this time, the power transmitted by the transmission shaft 4 cannot be transmitted to the connecting shaft 2 due to disconnection, and the convex shaft 10 idles, thereby avoiding the drill rod from being stuck. However, the transmission shaft 4 continues to output power, which causes the person to hold unstably, drop the hand or strain the arm. When the transmission sleeve 13 is disconnected from the convex shaft 10, the display and control all-in-one machine 28 can issue an alarm to remind the operator to release the operation switch, stop power output, and check the situation. Before drilling again, the telescopic rod 20 is reset to push the transmission sleeve 13 to be sleeved on the connecting shaft 2 and the convex shaft 10 for transmission connection. When the convex teeth one 11 and the convex teeth three 14 are staggered, the pneumatic motor 3 rotates to drive the convex shaft 10 to rotate at low speed. At this time, the transmission sleeve 13 can be sleeved, the power output path can be connected, and normal drilling can be performed.

[0033] In some embodiments, a sliding smooth surface 15 is pre-set at the rear end position of the inner wall of the transmission sleeve 13. The surface of the sliding smooth surface 15 is in sliding contact with the surface of the convex teeth one 11. The rear end of the convex teeth three 14 and the front end of the convex teeth one 11 are both provided with an inverted bevel. The inner diameter of the transmission sleeve 13 at the position of the sliding smooth surface 15 is smaller than the inner diameter of the transmission sleeve 13 at the position of the convex teeth three 14.

[0034] When the transmission sleeve 13 moves forward, if it is completely separated from the convex shaft 10, and the connecting shaft 2 and the transmission shaft 4 are each supported by only one shaft seat, it may cause unstable support. The sliding smooth surface 15 is arranged, and when the transmission sleeve 13 moves forward, it can only move a partial distance, so that the convex tooth three 14 is separated from the convex tooth one 11. The sliding smooth surface 15 is in sliding contact with the surface of the convex tooth one 11, which cannot provide power output, and maintains the reliable connection between the connecting shaft 2 and the transmission shaft 4.

[0035] In some embodiments, a plurality of ball grooves 25 are evenly arranged in the convex ring 16, and a steel ball 24 is arranged in each ball groove 25. The steel ball 24 is in contact with the surface of the fixed plate 17 and the mounting plate 18 at the corresponding position.

[0036] When the transmission sleeve 13 is sleeved on the convex shaft 10, it is driven to rotate, and the fixed plate 17 is always fixed and does not rotate. The contact between the moving and the static will cause continuous friction and wear of the surfaces of both. Through the contact of the steel ball 24 and the rolling of the ball groove 25, the rotating resistance and wear of the convex ring 16, the fixed plate 17 and the mounting plate 18 can be reduced.

[0037] In some embodiments, at least two positioning sliding sleeves 22 are arranged on the support seat 19 at a position different from the telescopic rod 20. A positioning rod 21 is arranged in each positioning sliding sleeve 22 and slides along the positioning sliding sleeve 22. The rear end of the positioning rod 21 is fixedly connected with the fixed plate 17.

[0038] The positioning rod 21 is used in combination with the positioning sliding sleeve 22 to increase the relative position maintaining effect of the fixed plate 17 and the support seat 19, and to constrain the telescopic rod 20 to be straight during extension and contraction, so as to avoid the inclination of the telescopic rod 20 to cause wear of the fixed plate 17 and the connecting shaft 2.

[0039] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rotary structure of a light anchor drilling machine, comprising an anchor drilling machine body (1), a pneumatic motor (3) is installed in the rear end position of the anchor drilling machine body (1), a connecting shaft (2) is installed in the front end position of the anchor drilling machine body (1) through a shaft seat one (26), a planetary reducer composed of an inner tooth ring (5), a sun gear (7), a planet gear (6) and a retainer (8) is installed between the connecting shaft (2) and the pneumatic motor (3), characterized in that, The sun gear (7) is provided with a transmission shaft (4), the transmission shaft (4) is fixedly installed through the shaft seat two (27), the output end of the pneumatic motor (3) is fixedly connected with the transmission shaft (4), the inner gear ring (5) is provided with a male shaft (10), the rear end of the connecting shaft (2) is close to the male shaft (10), the rear end of the connecting shaft (2) is fixedly provided with a plurality of convex teeth two (12) at equal intervals on the outer periphery, the male shaft (10) is fixedly provided with a plurality of convex teeth one (11) at equal intervals on the outer periphery, the male shaft (10) and the connecting shaft (2) are provided with a transmission sleeve (13) between the positions of the convex teeth two (12) and the convex teeth one (11), the transmission sleeve (13) is fixedly provided with a plurality of convex teeth three (14) at equal intervals on the inner wall, and the convex teeth three (14) are meshed with the convex teeth one (11) and the convex teeth two (12) to drive.

2. A rotary structure for a light weight anchor drill rig as claimed in claim 1, wherein, The inner gear ring (5) is fixedly provided with a fixed cover (9) on the front side, the male shaft (10) is fixedly installed at the coaxial position of the front end of the fixed cover (9) and the transmission shaft (4), and the gap distance between the male shaft (10) and the connecting shaft (2) is not less than 0.5 cm.

3. A rotary structure for a light weight anchor drill rig as claimed in claim 1, wherein, The transmission sleeve (13) is fixedly provided with a convex ring (16) at the front end, the convex ring (16) is provided with a fixed plate (17) on the front side, the fixed plate (17) is fixedly provided with a mounting plate (18) on the outer side, the mounting plate (18) clamps the convex ring (16) in cooperation with the fixed plate (17), the fixed plate (17) is provided with a support seat (19) on the front side, and the support seat (19) and the fixed plate (17) are fixedly provided with a telescopic rod (20).

4. A rotary structure for a light weight anchor drill rig as claimed in claim 3, wherein, The support seat (19) is provided with a rotating speed sensor (23) close to the connecting shaft (2), the anchor drilling machine body (1) is provided with a display and control all-in-one machine (28), and the rotating speed sensor (23) and the telescopic rod (20) are electrically connected with the display and control all-in-one machine (28).

5. A rotary structure for a light weight anchor drill rig as claimed in claim 3, wherein, The transmission sleeve (13) is provided with a sliding light surface (15) at the rear end position of the inner wall, and the surface of the sliding light surface (15) is in sliding contact with the surface of the convex teeth one (11).

6. A rotary structure for a light weight anchor drill rig as claimed in claim 5 wherein, The inner diameter of the transmission sleeve (13) at the position of the sliding light surface (15) is smaller than the inner diameter of the transmission sleeve (13) at the position of the convex teeth three (14), and the rear end of the mutually matched convex teeth three (14) and the front end of the convex teeth one (11) are both provided with an inverted bevel.

7. A rotary structure for a light weight anchor drill rig as claimed in claim 3, wherein, The convex ring (16) is provided with a plurality of ball grooves (25) uniformly formed therein, a steel ball (24) is arranged in each ball groove (25), and the steel ball (24) abuts against the surface of the fixed plate (17) and the mounting plate (18) at the corresponding position.

8. A rotary structure for a light weight anchor drill rig as claimed in claim 3, wherein, At least two positioning sliding sleeves (22) are further arranged on the support seat (19) at positions staggered with the telescopic rod (20), a positioning rod (21) is arranged in each positioning sliding sleeve (22) to slide along the positioning sliding sleeve (22), and the rear end of the positioning rod (21) is fixedly connected with the fixed plate (17).

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