Rotating shaft locking device and water well drilling rig applying same

Abstract

The rotating shaft locking device comprises a flange plate capable of being fixedly arranged on the outer ring of a rotating shaft in a sleeving mode, and a plurality of through holes are formed in the flange plate in a circumferential array mode. The water well drilling rig further comprises a fixing plate arranged on one side of the flange plate in parallel, a hydraulic cylinder is arranged on the side, away from the flange plate, of the fixing plate, the transmission end of the hydraulic cylinder is connected with an insertion rod capable of being inserted into the through hole in a telescopic mode, and the water well drilling rig further comprises a drilling rig rack and a power head vertically arranged on one side of the drilling rig rack in a sliding mode. A floating main shaft capable of being connected with a drill rod is arranged on the sliding frame, the flange plate is horizontally arranged on the outer ring of the main shaft in a sleeving mode, and the fixing plate is fixedly connected with the sliding frame. When the water well drilling rig is used for common water well drilling, the flange plate and the main shaft rotate synchronously, and when directional drilling is needed, the insertion rod is inserted into the through hole in the flange plate, the main shaft is locked and does not rotate any more, so that the water well drilling rig can be applied to directional drilling, drilling operation is completed smoothly, and the application range of the water well drilling rig is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to water well drilling rig technical field, concretely is a kind of pivot locking device and the water well drilling rig of application thereof. BACKGROUND

[0002] When carrying out water well exploration work, water well drilling rig needs to be used to carry out drilling work, but the ordinary water well drilling rig of present is mostly used to carry out vertical reciprocating drilling operation, when the scene needs to carry out directional drilling, then need to additionally purchase special directional drilling machine, this not only will increase engineering time also will increase construction cost, but if using ordinary water well drilling rig to carry out directional drilling, its main shaft not only can make drill rod rotate, influence the effect of directional drilling, and also increase the friction loss of drilling machine main shaft, influence the service life of drilling machine. UTILITY MODEL CONTENTS

[0003] To solve the technical problems in the above background that ordinary drilling machine cannot be used for directional drilling and the main shaft has large friction loss when drilling, the utility model provides a pivot locking device and a water well drilling rig applying the same.

[0004] The utility model technical scheme is as follows:

[0005] A pivot locking device, comprising a flange plate capable of being fixedly sleeved on the outer ring of a rotating shaft, a plurality of through holes being circumferentially arranged on the flange plate; further comprising a fixed plate arranged in parallel on one side of the flange plate, a hydraulic cylinder being arranged on the side of the fixed plate away from the flange plate, and an insertion rod capable of being telescopically inserted into the through hole being connected to the transmission end of the hydraulic cylinder. The flange plate can rotate synchronously with the rotating shaft, and when it is necessary to lock the rotating shaft, the insertion rod is inserted into the through hole on the flange plate by the hydraulic cylinder, so that the rotating shaft can be locked and its rotation is limited.

[0006] The utility model further provides a water well drilling rig, which comprises the above-mentioned pivot locking device, further comprises a drilling machine rack and a power head vertically and slidably arranged on one side of the drilling machine rack, the power head comprises a sliding frame, a floating main shaft capable of being connected to a drill rod being arranged on the sliding frame, the flange plate is horizontally sleeved on the outer ring of the main shaft, and the fixed plate is fixedly connected with the sliding frame. When the water well drilling rig is applied to ordinary water well drilling operation, the flange plate and the main shaft rotate synchronously, when directional drilling operation is needed, the insertion rod is inserted into the through hole on the flange plate by the hydraulic cylinder, the main shaft is locked, and the main shaft does not rotate with the rack, so that the water well drilling rig can be applied to directional drilling, and drilling operation can be successfully completed, and the application range of the water well drilling rig is enhanced.

[0007] Specifically, the hydraulic cylinder is arranged in the middle of the fixed plate, and the fixed plate is provided with a through hole corresponding to the position of the inserting rod, which can be penetrated by the inserting rod. The hydraulic cylinder and the inserting rod are arranged in line and in the middle of the fixed plate, so that the extension and retraction path of the inserting rod is optimal, the inserting rod is conveniently inserted into the through hole, and the size of the fixed plate in the horizontal direction is reduced. The hydraulic cylinder is fixed to the middle of the fixed plate through the connecting plate, so as to increase the contact area between the hydraulic cylinder and the fixed plate and increase the stability.

[0008] Further, the fixed plate is arranged away from the center of the flange plate, and an arc-shaped notch is arranged on the side close to the center of the flange plate. The arrangement of the arc-shaped notch can adapt to more sizes of the rotating shaft, and the arc-shaped structure can ensure that the rotating shaft can be smoothly rotated when it needs to be rotated.

[0009] In order to facilitate the quick insertion of the inserting rod into the through hole, the insertion end of the inserting rod is in the shape of a circular truncated cone, a prismatic truncated cone, a circular cone or a prismatic cone.

[0010] As a preferred embodiment, the through hole is provided with 10-14, so that the flange plate can be rotated to any angle, and a suitable through hole can be matched with the inserting rod.

[0011] Further preferably, the flange plate and the main shaft are connected through bolts to realize detachable connection of the flange plate and the main shaft, and facilitate disassembly and assembly of the flange plate.

[0012] Through the above design, the beneficial effects of the shaft locking device and the water well drilling machine applying the same are as follows: by arranging the shaft locking device on the main shaft, the functional applicability of the water well drilling machine is increased. When the water well drilling machine is applied to ordinary water well drilling operation, the flange plate and the main shaft rotate synchronously. When directional drilling operation is needed, the inserting rod is inserted into the through hole on the flange plate through the hydraulic cylinder, the main shaft is locked, and the main shaft and the rack do not rotate, so that the water well drilling machine can be applied to directional drilling, and drilling operation is successfully completed, and the application range of the water well drilling machine is enhanced. Moreover, the utility model is convenient to produce and manufacture, and has strong practicability. BRIEF DESCRIPTION OF DRAWINGS

[0013] In the drawings:

[0014] Figure 1 is a schematic view of a water well drilling machine;

[0015] Figure 2 is a top view of a shaft locking device;

[0016] Figure 3 is a bottom view of a shaft locking device;

[0017] The components represented by the reference numerals in the drawings are as follows:

[0018] 1, flange plate; 2, fixed plate; 3, insertion rod; 4, hydraulic cylinder; 5, rack; 6, main shaft; 7, sliding frame. DETAILED DESCRIPTION

[0019] Exemplary embodiments of the present disclosure will be described in greater detail below with reference to the accompanying drawings.

[0020] EMBODIMENT

[0021] Referring to Figure 2 , Figure 3 , the embodiment provides a rotating shaft locking device, which comprises a flange plate 1 capable of being fixedly sleeved on the outer ring of a rotating shaft, and a plurality of through holes are arranged in the circumferential direction of the flange plate 1; and a fixed plate 2 is arranged on one side of the flange plate 1 in parallel, a hydraulic cylinder 4 is arranged on the side of the fixed plate 2 away from the flange plate 1, and a transmission end of the hydraulic cylinder 4 is connected with an insertion rod 3 capable of being telescopically inserted into the through hole. The flange plate 1 can rotate synchronously with the rotating shaft, and when it is necessary to lock the rotating shaft, the insertion rod 3 is inserted into the through hole on the flange plate 1 through the hydraulic cylinder 4, so that the rotating shaft can be locked and its rotation is limited.

[0022] As a preferred embodiment, the through hole is provided with 10-14 through holes, so that the flange plate 1 can be matched with a suitable through hole after rotating to any angle.

[0023] Further, the fixed plate 2 is arranged away from the center of the flange plate 1, and an arc-shaped notch is arranged on the side close to the center of the flange plate 1. The arrangement of the arc-shaped notch can adapt to rotating shafts of more sizes, and the arc-shaped structure can ensure that the rotating shaft can rotate smoothly when it is necessary to rotate.

[0024] Specifically, the hydraulic cylinder 4 is arranged in the middle of the fixed plate 2, and the fixed plate 2 is provided with a through hole corresponding to the position of the insertion rod 3, through which the insertion rod 3 can pass. The hydraulic cylinder 4 and the insertion rod 3 are arranged in line and in the middle of the fixed plate 2, so that the extension and retraction path of the insertion rod 3 is optimal, the insertion rod 3 is convenient to insert into the through hole, and the size of the fixed plate 2 in the horizontal direction can be reduced. The hydraulic cylinder 4 is fixed in the middle of the fixed plate 2 through a connecting plate, so as to increase the contact area between the hydraulic cylinder 4 and the fixed plate 2 and increase the stability.

[0025] Exemplarily, the connecting plate and the fixed plate 2 are connected through bolts, so as to facilitate the installation and replacement of the hydraulic cylinder 4.

[0026] In order to facilitate the quick insertion of the insertion rod 3 into the through hole, the insertion end of the insertion rod 3 is provided in a circular truncated cone shape, a prismatic truncated cone shape, a circular cone shape or a prismatic cone shape.

[0027] Referring to Figures 1 to 3In order to make the use state of the above-mentioned rotating shaft locking device more intuitive, the utility model also provides a water well drilling machine, including the above-mentioned rotating shaft locking device, still include drilling machine frame 5, and the power head of vertical sliding is arranged at one side thereof, the power head includes the sliding frame 7, is equipped with the floating main shaft 6 of the drilling rod can be connected on it, the flange plate 1 horizontal sleeve is arranged in the outer ring of main shaft 6, the fixed plate 2 is fixedly connected with sliding frame 7. When the water well drilling machine is applied to ordinary water well drilling operation, the flange plate 1 and the main shaft 6 synchronous rotation, when needing to carry out directional drilling operation, the plug rod 3 is inserted into the through hole on the flange plate 1 by the hydraulic cylinder 4, the main shaft 6 is locked, the rotation between the main shaft 6 and the frame 5 does not occur, and it can be applied to directional drilling, and drilling operation is successfully completed, and the application range of the water well drilling machine is enhanced.

[0028] Further preferably, the flange plate 1 and the main shaft 6 are connected by bolts, realizing detachable connection of the flange plate 1 and the main shaft 6, facilitating disassembly and assembly of the flange plate 1.

[0029] In the specific implementation, the outer diameter of the flange plate 1 is 2-3 times of the maximum outer diameter of the main shaft 6, which avoids oversize of the flange plate 1 and ensures sufficient opening area on the flange plate 1, thereby ensuring the matching effect of the flange plate 1 and the plug rod 3.

[0030] In order to improve the smoothness of the cooperation between the through hole and the plug rod 3, the plurality of through holes on the flange plate 1 are equidistantly arranged in a circular array around the vertical axis of the main shaft 6.

[0031] The fixed plate 2 is arranged below the flange plate 1, and the upper part of the flange plate 1 and the main shaft 6 is the sliding frame 7, which has small space, and the space below the flange plate 1 is relatively spacious, facilitating installation of the hydraulic cylinder 4 and the plug rod 3.

[0032] Specifically, the center of the arc-shaped notch is arranged in line with the center of the flange plate 1 and the center of the main shaft 6, and the radius of the arc-shaped notch is greater than the outer diameter of the main shaft 6, so that the fixed plate 2 does not affect the main shaft 6 when the main shaft 6 needs to rotate.

[0033] Exemplarily, the side of the fixed plate 2 away from the main shaft 6 is welded to the sliding frame 7, which has high overall stability and good locking effect on the main shaft 6.

[0034] By setting the rotation shaft locking device on the main shaft 6, the function applicability of the water well drilling machine can be increased, when the water well drilling machine is applied to common water well drilling operation, the flange plate 1 and the main shaft 6 rotate synchronously, when directional drilling operation is needed, the insertion rod 3 is inserted into the through hole on the flange plate 1 through the hydraulic cylinder 4, the main shaft 6 is locked, the rotation between the main shaft 6 and the rack 5 does not occur, the main shaft 6 does not drive the drill rod to rotate, but the drill rod is driven to directional drilling by the screw motor at the hole bottom, so that the water well drilling machine can be applied to directional drilling operation to successfully complete drilling, and the application range of the water well drilling machine is enhanced. When the drill rod needs to be replaced, the insertion rod 3 is withdrawn away from the through hole through the hydraulic cylinder 4, the disassembly and assembly of the drill rod can be completed through the main shaft 6, and the utility model is convenient to produce and manufacture and has high practicality.

Claims

1. A swivel lock device, characterized by It comprises a flange plate (1) capable of being fixedly sleeved on the outer ring of the rotating shaft, and a plurality of through holes are arranged in the circumferential direction on the flange plate (1); It further comprises a fixing plate (2) arranged in parallel with one side of the flange plate (1), wherein one side of the fixing plate (2) away from the flange plate (1) is provided with a hydraulic cylinder (4), and a telescopic insertion rod (3) capable of being telescopically inserted into the through hole is connected to the transmission end of the hydraulic cylinder (4).

2. A water well drilling rig comprising a swivel lock as claimed in claim 1, characterized in that It further comprises a drilling machine rack (5) and a power head vertically and slidably arranged on one side of the drilling machine rack (5), wherein the power head comprises a sliding frame (7) provided with a floating main shaft (6) capable of being connected with a drill rod, the flange plate (1) is horizontally sleeved on the outer ring of the main shaft (6), and the fixing plate (2) is fixedly connected with the sliding frame (7).

3. A rig as claimed in claim 2, wherein, The hydraulic cylinder (4) is arranged in the middle of the fixing plate (2), and the fixing plate (2) is provided with a perforation capable of being penetrated by the insertion rod (3) at a position corresponding to the insertion rod (3).

4. A rig as claimed in claim 2, wherein, The fixing plate (2) is arranged away from the center of the flange plate (1), and an arc-shaped notch is arranged on the side close to the center of the flange plate (1).

5. A rig as claimed in claim 2, wherein, The insertion end of the insertion rod (3) is in the shape of a circular truncated cone, a prismatic truncated cone, a circular cone or a prismatic cone.

6. A rig as claimed in claim 2, wherein, The through hole is provided with 10-14 through holes.

7. A rig as claimed in claim 2 wherein, The flange plate (1) is connected with the main shaft (6) through bolts.

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