Swing mechanism of high-pressure jet grouting drilling machine

Abstract

The slewing mechanism comprises a connecting sleeve, and limiting strips are welded to the front portion and the rear portion of the left side and the rear portion of the right side of the outer wall of the connecting sleeve. A mounting frame is inserted into the outer sides of the connecting sleeve and the limiting strip; mounting plates are mounted at the lower ends of the mounting frames through bolts; a threaded vertical rod is movably embedded in the lower end of the connecting sleeve; a clamping movable seat structure is mounted on the outer side of the threaded vertical rod and is connected with the mounting plate; a gearbox is mounted at the lower part of the right side in the mounting frame through bolts; the lower end of the gearbox is coupled with a transmission gear; a stepping motor is mounted on the right side of the upper end of the gearbox through bolts; a measuring seat limiting structure is supported at the upper end of the connecting sleeve; the limiting measuring seat structure is electrically connected with a PLC. According to the utility model, through the arrangement of the limiting measuring seat structure, the connecting sleeve is limited, the connecting sleeve is prevented from being easily separated from the mounting rack, and pressure reduction protection is carried out during mutual contact.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary jet drilling machines, in particular to a rotary mechanism of a high-pressure rotary jet drilling machine. Background Art

[0002] The slewing mechanism of a high-pressure rotary jet drilling rig is a device that drives the high-pressure rotary jet drilling rig to rotate and perform lifting activities during the process of using high-pressure liquid for jet drilling. The traditional slewing mechanism of a high-pressure rotary jet drilling rig includes a casing, the outer surface of which is fixedly connected to a connecting piece, and the side of the connecting piece away from the casing is fixedly connected to a sliding sleeve, a sliding rod is sleeved in the sliding sleeve, and the sides of several sliding rods that are close to each other are fixedly connected by a connecting frame, a first bearing is clamped on the top of the connecting frame, a threaded barrel is sleeved in the first bearing, a driven gear is fixedly connected to the outer surface of the threaded barrel, and a first driving device is meshed on the side of the driven gear, and a threaded rod is threaded in the threaded barrel. The threaded barrel has the characteristics of improving the adaptability of the horizontal rotary jet drilling rig to tunnels of different diameters, but it is inconvenient to control the spacing of the rotation and extension according to needs, and the active part is inconvenient to fix, so it is easy to loosen when not in use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a high-pressure rotary jet drilling rig rotary mechanism, which can realize the tightening and fixing of the movable part to prevent it from loosening and falling when not in use, and adjust the spacing of the rotary telescopic part so as to accurately perform the rotary jet drilling work.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a high-pressure rotary jet drilling rig rotation mechanism, including a connecting sleeve, and the front and rear parts on the left and right sides of the outer wall of the connecting sleeve are welded with limiting strips; a mounting frame is interspersed on the outside of the connecting sleeve and the limiting strip; a mounting plate is installed with bolts at the lower end of the mounting frame; a threaded vertical rod is movably inlaid at the lower end of the connecting sleeve; a fixed movable seat structure is installed on the outside of the threaded vertical rod and is connected to the mounting plate; a gear box is installed with the lower bolt on the right side of the inside of the mounting frame; a transmission gear is connected to the lower end shaft of the gear box; a stepper motor is installed with the bolt on the right side of the upper end of the gear box; a limiting measurement seat structure is supported at the upper end of the connecting sleeve; the limiting measurement seat structure is electrically connected to a PLC, and is characterized in that the limiting measurement seat structure includes a hanging plate, and a connecting seat is installed with bolts at the lower end of the hanging plate; a blocking plate is installed with bolts at the lower part of the outer wall of the connecting seat; a buffer seat is glued to the front and rear sides of the lower end of the blocking plate; an infrared ranging sensor is installed with the left bolt at the bottom of the hanging plate.

[0005] Preferably, the lower end of the connecting seat is bolted to the upper end of the connecting sleeve.

[0006] Compared with the prior art, the beneficial effects of the utility model are:

[0007] In the utility model, the blocking plate and the buffer seat are arranged to restrict the connecting sleeve, prevent the connecting sleeve from being easily separated from the mounting frame, and provide pressure relief protection when the connecting sleeve and the buffer seat are in contact with each other.

[0008] In the utility model, the infrared distance measuring sensor is provided to realize the function of distance measurement, so as to accurately perform the work of the rotary jet drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model.

[0010] Figure 2 It is a structural schematic diagram of the limiting measuring seat structure of the utility model.

[0011] Figure 3 It is a structural schematic diagram of the clamping movable seat structure of the utility model.

[0012] Figures 1 to 3 middle:

[0013] 1. Connecting sleeve; 2. Limiting strip; 3. Mounting frame; 4. Threaded vertical rod; 5. Fixing movable seat structure; 51. Internal threaded cylinder; 52. Driving gear; 53. Fixing strip; 54. Fixing electric cylinder; 6. Mounting plate; 7. Transmission gear; 8. Stepping motor; 9. Limiting measuring seat structure; 91. Hanging plate; 92. Connecting seat; 93. Blocking plate; 94. Buffer seat; 95. Infrared ranging sensor; 10. Gear box; 11. PLC. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with the accompanying drawings:

[0015] As attached Figure 1 As shown, a high-pressure rotary jet drilling rig rotation mechanism described in the utility model includes a connecting sleeve 1, and the front and rear parts on both sides of the left and right sides of the outer wall of the connecting sleeve 1 are welded with limiting strips 2; a mounting frame 3 is inserted into the outside of the connecting sleeve 1 and the limiting strip 2; a mounting plate 6 is bolted to the lower end of the mounting frame 3; a threaded vertical rod 4 is movably embedded in the lower end of the connecting sleeve 1; a fixed movable seat structure 5 is installed on the outside of the threaded vertical rod 4 and is connected to the mounting plate 6; a gear box 10 is bolted to the lower right side of the inside of the mounting frame 3; a transmission gear 7 is axially connected to the lower end of the gear box 10; a stepping motor 8 is bolted to the right side of the upper end of the gear box 10; a limiting measurement seat structure 9 is supported at the upper end of the connecting sleeve 1; and the limiting measurement seat structure 9 is electrically connected to a PLC 11.

[0016] As attached Figure 2As shown, in the above embodiment, specifically, the limiting measurement seat structure 9 includes a hanging plate 91, and a connecting seat 92 is installed on the lower end bolt of the hanging plate 91; a blocking plate 93 is installed on the lower bolt of the outer wall of the connecting seat 92; a buffer seat 94 is glued on the front and rear sides of the lower end of the blocking plate 93; an infrared ranging sensor 95 is installed on the left bolt of the lower part of the hanging plate 91; the infrared ranging sensor 95 cooperates with the mounting frame 3 to detect the distance.

[0017] As attached Figure 3 As shown, in the above embodiment, specifically, the clamping movable seat structure 5 includes an internal threaded tube 51, and the upper part of the outer wall of the internal threaded tube 51 is inlaid with a driving gear 52; a clamping strip 53 is inserted into the left side of the driving gear 52; a clamping electric cylinder 54 is installed on the left end bolt of the clamping strip 53; the clamping electric cylinder 54 is driven to drive the clamping strip 53 to separate from the driving gear 52.

[0018] In the above embodiment, specifically, the lower end of the connecting seat 92 is bolted to the upper end of the connecting sleeve 1 .

[0019] In the above embodiment, specifically, the blocking plate 93 is a transparent PVC plate, and the infrared distance measuring sensor 95 on the upper side corresponds to the mounting bracket 3 .

[0020] In the above embodiment, specifically, the buffer seat 94 is a rubber seat, and corresponds to the mounting frame 3. When being driven by the connecting sleeve 1 to move, it can contact the hanging plate 91 to perform pressure relief and buffering.

[0021] In the above embodiment, specifically, the internal threaded tube 51 is embedded in the mounting plate 6 through a bearing, and the interior is threadedly connected to the threaded vertical rod 4, and the driving gear 52 on the outer wall of the internal threaded tube 51 is meshed with the transmission gear 7.

[0022] In the above embodiment, specifically, the bolt support of the fixing electric cylinder 54 is on the left side of the upper end of the mounting plate 6, and the clamping strip 53 on the output shaft is a triangular steel strip, which clamps the driving gear 52 when not in use to prevent it from being shaken and easily causing the connection with the threaded vertical rod 4 to loosen and be damaged.

[0023] In the above embodiment, specifically, the stepper motor 8 is electrically connected to the PLC 11 , the infrared distance sensor 95 is electrically connected to the PLC 11 , and the locking electric cylinder 54 is electrically connected to the PLC 11 .

[0024] The working principle of the utility model is as follows: when cooperating with a high-pressure rotary jet drilling rig for rotation and extension, the driving clamping electric cylinder 54 drives the clamping strip 53 to separate from the driving gear 52, and then drives the stepping motor 8 to cooperate with the gear box 10 to drive the transmission gear 7, the driving gear 52 and the internal threaded tube 51 to rotate. The rotating internal threaded tube 51 uses the thread to drive the threaded vertical rod 4 to rotate and rise and fall, thereby driving the connecting sleeve 1 and the limiting strip 2 to move on the mounting frame 3. During the activity, the infrared ranging sensor 95 on the lower side of the hanging plate 91 cooperates with the mounting frame 3 to detect the spacing for use.

[0025] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A high-pressure rotary jet drilling rig slewing mechanism, the high-pressure rotary jet drilling rig slewing mechanism comprising a connecting sleeve (1), the front and rear parts of the left and right sides of the outer wall of the connecting sleeve (1) are welded with limiting strips (2); a mounting frame (3) is inserted into the outer side of the connecting sleeve (1) and the limiting strip (2); a mounting plate (6) is bolted to the lower end of the mounting frame (3); a threaded vertical rod (4) is movably embedded in the lower end of the connecting sleeve (1); a clamping movable seat structure (5) is installed on the outer side of the threaded vertical rod (4) and is connected to the mounting plate (6); a gear box (10) is bolted to the lower right side of the mounting frame (3); a transmission gear (7) is axially connected to the lower end of the gear box (10); a stepping motor (8) is bolted to the right side of the upper end of the gear box (10); a limiting measurement seat structure (9) is supported at the upper end of the connecting sleeve (1); the limiting measurement seat structure (9) is electrically connected to a PLC (11), characterized in that: The limiting measurement seat structure (9) comprises a hanging plate (91), a connecting seat (92) being bolted on the lower end of the hanging plate (91); a blocking plate (93) being bolted on the lower part of the outer wall of the connecting seat (92); a buffer seat (94) being glued on both the front and rear sides of the lower end of the blocking plate (93); and an infrared distance measuring sensor (95) being bolted on the left side of the lower part of the hanging plate (91).

2. The high-pressure jet grouting drilling rig rotary mechanism according to claim 1, characterized in that: The clamping movable seat structure (5) comprises an internal threaded tube (51), the upper portion of the outer wall of the internal threaded tube (51) being inlaid with a driving gear (52); a clamping strip (53) being inserted through the left side of the driving gear (52); and a clamping electric cylinder (54) being bolted to the left end of the clamping strip (53).

3. The high-pressure jet grouting drilling rig rotary mechanism according to claim 1, characterized in that: The lower end of the connecting seat (92) is bolted to the upper end of the connecting sleeve (1).

4. The high-pressure jet grouting drilling rig rotary mechanism according to claim 1, characterized in that: The blocking plate (93) is a transparent PVC plate, and the infrared distance measuring sensor (95) on the upper side corresponds to the mounting frame (3).

5. The high-pressure jet grouting drilling rig rotary mechanism according to claim 2, characterized in that: The buffer seat (94) is a rubber seat and corresponds to the mounting frame (3).

6. The high-pressure jet grouting drilling rig rotary mechanism according to claim 2, characterized in that: The internal threaded barrel (51) is embedded in the mounting plate (6) via a bearing, and is threadedly connected to the threaded vertical rod (4) at the same time. At the same time, the driving gear (52) on the outer wall of the internal threaded barrel (51) is meshed with the transmission gear (7).

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