Hydraulic system of rotary drilling rig

Abstract

The utility model relates to the field of rotary drilling rigs, and discloses a hydraulic system of a rotary drilling rig, the hydraulic system comprises a supporting frame and a fixing block, the fixing frame is slidably mounted on the surface of the supporting frame, one end of the supporting frame is rotatably connected with a hydraulic rod, a sliding block is slidably mounted on the inner wall of the fixing block, and one end of the sliding block is fixedly connected with the inner wall of the hydraulic rod; a plurality of limiting grooves are formed in the surface of the sliding block, clamping blocks are connected to the inner walls of the limiting grooves in a clamped mode, a rotating frame is rotationally installed on the surfaces of the clamping blocks, and one end of the fixing block is fixedly connected with the surface of a hydraulic rod. The fixing block and the sliding block are installed on the two parts of the hydraulic rod correspondingly, the inner wall of the fixing block is slidably connected with the surface of the sliding block, a rotating frame is rotationally installed on the inner wall of the fixing block, and a clamping block at one end of the rotating frame is clamped to the inner wall of a limiting groove, so that the fixing block and the sliding block are clamped through the clamping block and the limiting groove; and after the hydraulic rod rotates to the moving angle, the length of the hydraulic rod is fixed.

Description

Technical Field

[0001] The present application relates to the field of rotary drilling rigs, and in particular to a hydraulic system of a rotary drilling rig. Background Art

[0002] A rotary drilling rig is a mechanized civil construction equipment that drills or bores into the ground by rotating the drill bit loaded on the excavation mast. Its main function is to carry out various construction operations in soil, rock and other strata, such as underground pipelines, pile foundations, tunnels, cofferdams and other construction operations. The rotary drilling rig is simple and efficient to operate, has a wide range of uses, and is convenient for on-site construction operations. It is mainly used for pile foundation construction and is suitable for a variety of geological conditions, such as clay, silt, sand, silty soil, and strata containing some pebbles and gravel, and even slightly weathered rock strata. When the rotary drilling rig is in use, the drill rod is often adjusted with the help of a hydraulic system. When a conventional hydraulic system is in use, after the support frame is installed and stabilized, the surface of the support frame is slidably connected to a fixed frame, and the position of the pressure rod is adjusted with the help of the fixed frame. A hydraulic rod is installed at one end of the support frame, and the hydraulic rod adjusts its own length to adjust the angle of the support frame.

[0003] With respect to the above-mentioned related technologies, the inventors believe that when a conventional rotary drilling rig is moved, it is often necessary to adjust the angle of the support frame, and because the drill bit at one end of the support frame is heavier, the hydraulic rod needs to withstand greater pressure after the support frame is rotated to a certain angle, which can easily affect the service life of the hydraulic rod when used for a long time.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to solve the problem that the drill rod of a conventional rotary drilling rig is subjected to high pressure after rotation, the present application provides a hydraulic system of a rotary drilling rig.

[0006] The hydraulic system of a rotary drilling rig provided in this application adopts the following technical solution:

[0007] A hydraulic system of a rotary drilling rig comprises a support frame and a fixed block, a fixed frame is slidably mounted on the surface of the support frame, and one end of the support frame is rotatably connected to a hydraulic rod, a sliding block is slidably mounted on the inner wall of the fixed block, one end of the sliding block is fixedly connected to the inner wall of the hydraulic rod, and a plurality of limiting grooves are opened on the surface of the sliding block, a clamping block is clamped on the inner wall of the limiting groove, a rotating frame is rotatably mounted on the surface of the clamping block, one end of the fixed block is fixedly connected to the surface of the hydraulic rod, and the size specification of the inner wall of the fixed block is matched with the size specification of the surface of the sliding block, and the surface of the rotating frame is rotatably mounted to the inner wall of the fixed block.

[0008] Preferably, one end of the rotating frame is fixedly connected to a motor via a transmission disk, and one end of the motor is fixedly mounted on the surface of the fixed block.

[0009] Preferably, a shielding cover is fixedly connected to the surface of the fixed block, a cleaning plate is welded to the top of the shielding cover, one end of the cleaning plate is slidably mounted on the inner wall of the limiting groove, and the size specification of one end of the cleaning plate is compatible with the size specification of the inner wall of the limiting groove.

[0010] Preferably, a connecting frame is rotatably connected to the surface of the supporting frame, a pressure detector is fixedly mounted on the surface of the connecting frame, and one end of the pressure detector is electrically connected to one end of the motor by means of a wire.

[0011] Preferably, two springs are fixedly installed at the bottom end of the connecting frame, and the two springs are symmetrically distributed with the support frame as the axis. A connecting block is fixedly installed at one end of the spring away from the connecting frame, and one end of the connecting block is fixedly connected to the surface of the support frame.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. The fixing block and the sliding block are respectively installed on the two parts of the hydraulic rod, the inner wall of the fixing block is slidably connected with the surface of the sliding block, and a rotating frame is rotatably installed on the inner wall of the fixing block, and a clamping block at one end of the rotating frame is clamped with the inner wall of the limiting groove, so that the fixing block and the sliding block are clamped with the help of the clamping block and the limiting groove, so that after the hydraulic rod is rotated to the moving angle, the length of the hydraulic rod is fixed, and a motor is installed at one end of the rotating frame with the help of a transmission plate, so that the rotating frame is controlled by the motor to rotate, thereby controlling the clamping block at one end of the rotating frame, which is convenient for limiting the length of the hydraulic rod, and a shielding cover is fixedly installed on the surface of the fixing block, and a cleaning plate at one end of the shielding cover is slidably connected with the inner wall of the limiting groove, so that the inner wall of the limiting groove is cleaned with the help of the cleaning plate, thereby avoiding the situation that the inner wall of the limiting groove is blocked by mud, which makes it difficult for the clamping block to be stuck in the limiting groove; compared with the prior art, the pressure borne by the hydraulic rod is effectively reduced, and the service life of the device is improved;

[0014] 2. The connecting frame can also be installed on the surface of the supporting frame, and a pressure detector is installed on the surface of the connecting frame. One end of the pressure detector is electrically connected to one end of the motor so that the supporting frame can contact the surface of the pressure detector after rotating to a certain angle, and the pressure detector sends a rotation signal to the motor to control the card block to engage with the limit groove. A spring is installed at one end of the connecting frame, and one end of the spring is connected to the surface of the supporting frame with the help of the connecting block, so that one end of the connecting frame can be pushed with the help of the spring, so that the connecting frame can be retracted after the supporting frame contacts the connecting frame, thereby avoiding the situation where the connecting frame is damaged by impact; the convenience of using the device is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a hydraulic system of a rotary drilling rig in an embodiment of the application;

[0016] Figure 2 is a schematic diagram of the fixed block structure of an embodiment of the application;

[0017] Figure 3 is a side view schematic diagram of the structure of an embodiment of the application;

[0018] Figure 4 It is a schematic diagram of the structure at location A of an embodiment of the application.

[0019] Explanation of the accompanying drawings: 1. Support frame; 2. Fixed frame; 3. Hydraulic rod; 4. Fixed block; 5. Slider; 6. Limiting groove; 7. Block; 8. Rotating frame; 9. Motor; 10. Shielding cover; 11. Cleaning plate; 12. Connecting frame; 13. Pressure detector; 14. Spring; 15. Connecting block. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1 —4 Provide further details of this application.

[0021] The present application embodiment discloses a hydraulic system of a rotary drilling rig, referring to Figure 1 - Figure 2 , including a support frame 1. When in use, the drill rod is often adjusted with the help of a hydraulic system. When a conventional hydraulic system is in use, after the support frame 1 is installed and stabilized, the surface of the support frame 1 is slidably connected with a fixed frame 2, and the position of the pressure rod is adjusted with the help of the fixed frame 2. A hydraulic rod 3 is installed at one end of the support frame 1. After the hydraulic rod 3 adjusts its own length, the angle of the support frame 1 is adjusted. The fixed block 4 and the slider 5 are respectively installed on the two parts of the hydraulic rod 3. The inner wall of the fixed block 4 is slidably connected with the surface of the slider 5. The inner wall of the fixed block 4 is rotatably installed with a rotating frame 8. A clamping block 7 at one end of the rotating frame 8 is clamped with the inner wall of the limiting groove 6. The fixed block 4 is clamped with the slider 5 with the help of the clamping block 7 and the limiting groove 6, so that after the hydraulic rod 3 is rotated to the moving angle, the length of the hydraulic rod 3 is fixed.

[0022] Reference Figure 2 A motor 9 is installed at one end of the rotating frame 8 with the help of a transmission disk. The rotating frame 8 is controlled to rotate with the help of the motor 9, so as to control the block 7 at one end of the rotating frame 8, which is convenient for limiting the length of the hydraulic rod 3. A shielding cover 10 is fixedly installed on the surface of the fixed block 4. The surface of the device is shielded by the shielding cover 10. A cleaning plate 11 is installed at one end of the shielding cover 10. One end of the cleaning plate 11 is slidably connected to the inner wall of the limiting groove 6. The inner wall of the limiting groove 6 is cleaned with the help of the cleaning plate 11, which avoids the inner wall of the limiting groove 6 being blocked by mud, making it difficult for the block 7 to be stuck in the limiting groove 6.

[0023] Reference Figure 3 - Figure 4 , the connecting frame 12 is installed on the surface of the supporting frame 1, and a pressure detector 13 is installed on the surface of the connecting frame 12. One end of the pressure detector 13 is electrically connected to one end of the motor 9. After the supporting frame 1 rotates to a certain angle, it contacts the surface of the pressure detector 13. After the pressure detector 13 is squeezed, it sends a rotation signal to the motor 9 to control the card block 7 to engage with the limit groove 6, and when the supporting frame 1 is reset, the rotating frame 8 is controlled by the motor 9 to retract the card block 7, thereby releasing the restriction on the hydraulic rod 3. A spring 14 is installed at one end of the connecting frame 12, and a connecting block 15 is installed at one end of the spring 14. One end of the connecting block 15 is connected to the surface of the supporting frame 1. The spring 14 is used to push one end of the connecting frame 12, so that the connecting frame 12 can be retracted after the supporting frame 1 contacts the connecting frame 12, thereby avoiding the situation where the connecting frame 12 is damaged by impact.

[0024] The implementation principle of the hydraulic system of a rotary drilling rig in the embodiment of the present application is as follows: by respectively installing the fixed block 4 and the sliding block 5 on the two parts of the hydraulic rod 3, the inner wall of the fixed block 4 is slidably connected to the surface of the sliding block 5, and a rotating frame 8 is rotatably installed on the inner wall of the fixed block 4. A clamping block 7 at one end of the rotating frame 8 is clamped with the inner wall of the limiting groove 6, so that the fixed block 4 and the sliding block 5 are clamped with the clamping block 7 and the limiting groove 6, so that after the hydraulic rod 3 is rotated to the moving angle, the length of the hydraulic rod 3 is fixed, and a motor 9 is installed at one end of the rotating frame 8 with the help of a transmission disk, so that the rotating frame 8 is controlled to rotate with the help of the motor 9, so as to control the clamping block 7 at one end of the rotating frame 8, so as to facilitate limiting the length of the hydraulic rod 3, and a shielding cover 10 is fixedly installed on the surface of the fixed block 4, and a cleaning plate 11 at one end of the shielding cover 10 is slidably connected to the inner wall of the limiting groove 6, so that the inner wall of the limiting groove 6 is cleaned with the help of the cleaning plate 11, thereby avoiding the inner wall of the limiting groove 6 being blocked by soil, which makes it difficult for the clamping block 7 to be stuck in the limiting groove 6.

[0025] The connecting frame 12 can also be installed on the surface of the support frame 1. A pressure detector 13 is installed on the surface of the connecting frame 12. One end of the pressure detector 13 is electrically connected to one end of the motor 9 so that the support frame 1 can be rotated to a certain angle and contact the surface of the pressure detector 13. The pressure detector 13 is used to send a rotation signal to the motor 9 to control the clamping block 7 to engage with the limit groove 6. A spring 14 is installed at one end of the connecting frame 12. One end of the spring 14 is connected to the surface of the support frame 1 with the help of a connecting block 15 so that one end of the connecting frame 12 can be pushed with the help of the spring 14, so that the connecting frame 12 can be retracted after the support frame 1 contacts the connecting frame 12, thereby avoiding the situation where the connecting frame 12 is damaged by impact.

[0026] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hydraulic system for a rotary drilling rig, comprising a support frame (1) and a fixed block (4), characterized in that: A fixing frame (2) is slidably mounted on the surface of the support frame (1), and one end of the support frame (1) is rotatably connected to a hydraulic rod (3). A sliding block (5) is slidably mounted on the inner wall of the fixing block (4), one end of the sliding block (5) is fixedly connected to the inner wall of the hydraulic rod (3), and a plurality of limiting grooves (6) are provided on the surface of the sliding block (5). A clamping block (7) is clamped on the inner wall of the limiting groove (6), and a rotating frame (8) is rotatably mounted on the surface of the clamping block (7).

2. The hydraulic system of a rotary drilling rig according to claim 1, characterized in that: One end of the fixed block (4) is fixedly connected to the surface of the hydraulic rod (3), and the size of the inner wall of the fixed block (4) is compatible with the size of the surface of the slider (5), and the surface of the rotating frame (8) is rotatably mounted on the inner wall of the fixed block (4).

3. The hydraulic system of a rotary drilling rig according to claim 1, characterized in that: One end of the rotating frame (8) is fixedly connected to a motor (9) by means of a transmission disk, and one end of the motor (9) is fixedly mounted on the surface of a fixed block (4).

4. The hydraulic system of a rotary drilling rig according to claim 1, characterized in that: A shielding cover (10) is fixedly connected to the surface of the fixed block (4), a cleaning plate (11) is welded to the top of the shielding cover (10), one end of the cleaning plate (11) is slidably mounted on the inner wall of the limiting groove (6), and the size specification of one end of the cleaning plate (11) is compatible with the size specification of the inner wall of the limiting groove (6).

5. The hydraulic system of a rotary drilling rig according to claim 1, characterized in that: The surface of the support frame (1) is rotatably connected to a connecting frame (12), and a pressure detector (13) is fixedly installed on the surface of the connecting frame (12), and one end of the pressure detector (13) is electrically connected to one end of the motor (9) by means of a wire.

6. The hydraulic system of a rotary drilling rig according to claim 5, characterized in that: Two springs (14) are fixedly mounted on the bottom end of the connecting frame (12), and the two springs (14) are symmetrically distributed with the support frame (1) as an axis. A connecting block (15) is fixedly mounted on one end of the spring (14) away from the connecting frame (12), and one end of the connecting block (15) is fixedly connected to the surface of the support frame (1).

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