Tower lifting device for drilling machine

Abstract

The invention relates to a tower lifting device for a drilling rig, and relates to the technical field of engineering geological drilling, the tower lifting device comprises a base and a tower body, the tower body is rotatably connected to the base, a hydraulic cylinder is installed on the base, a piston rod of the hydraulic cylinder is hinged to the tower body, and the piston rod of the hydraulic cylinder is hinged to the tower body. A hydraulic cylinder is arranged on the tower body, fixing rods are arranged on the two sides of the hydraulic cylinder and fixedly connected to the base, a fixing plate is fixedly connected to the top ends of the fixing rods, a supporting rod is arranged on one side of each fixing rod, one end of each supporting rod is hinged to the tower body, and a limiting assembly used for limiting sliding of the supporting rods is arranged on the base. The supporting rod is fixedly connected with a limiting rod, the fixing plate is provided with a through hole used for allowing the supporting rod and the limiting rod to pass through, the fixing plate is slidably connected with an abutting block, and a connecting assembly used for connecting the abutting block with the hydraulic cylinder is arranged between the abutting block and the hydraulic cylinder. The supporting structure has the effect of improving the supporting strength of the supporting rod to the tower.

Description

Technical Field

[0001] The present application relates to the technical field of engineering geological drilling, and in particular to a tower lifting device for a drilling rig. Background Art

[0002] A drilling rig is also called a drilling machine. Its main function is to drive the drill tool to break the rock at the bottom of the hole and lower or raise the drill tool in the hole. It can be used to drill core samples, ore samples, rock cuttings, gaseous samples, liquid samples, etc. to explore the underground geology and mineral resources.

[0003] Among them, the tower of the drilling rig is used to lift the drill tool and drill pipe during the drilling process. Before drilling, the tower of the drilling rig needs to be lifted first so that it can lift the drill tool and drill pipe during drilling. During the use of the tower, a lifting device is usually required to move the tower to the target position through the lifting device.

[0004] In the related art, after the tower is connected, a hydraulic cylinder is usually set to drive the tower to lift the tower. After the tower lifting is completed, multiple support rods are required, and the ends of the multiple support rods are connected end to end. Subsequently, the butt-jointed support rods are fixed between the tower and the platform. However, during the connection and fixation of the support rods, multiple screws are required. Therefore, during the connection process, multiple screws need to be rotated and tightened, and at the same time, multiple support rods need to be butt-jointed, which consumes a lot of time. In addition, directly connecting and fixing the support rods with screws may cause the screws to be overstressed and deformed during use, and even cause the support rods to break away from the tower, resulting in safety accidents. Summary of the Invention

[0005] In order to improve the support strength of the support rod for the tower, the present application provides a tower lifting device for a drilling rig.

[0006] A tower lifting device for a drilling rig provided by the present application adopts the following technical solution: A tower lifting device for a drilling rig includes a base and a tower body. The tower body is rotatably connected to the base. A hydraulic cylinder is installed on the base. The piston rod of the hydraulic cylinder is hinged to the tower body. Fixed rods are arranged on both sides of the hydraulic cylinder. The fixed rods are fixedly connected to the base. A fixing plate is fixedly connected to the top end of the fixed rod. A support rod is arranged on one side of the fixed rod. One end of the support rod is hinged to the tower body. A limiting component for restricting the sliding of the support rod is arranged on the base. A limiting rod is fixedly connected to the support rod. A through hole for the support rod and the limiting rod to pass through is formed in the fixing plate. An abutting block is slidably connected to the fixing plate. A connecting component for connecting the abutting block and the hydraulic cylinder is arranged between the abutting block and the hydraulic cylinder.

[0007] By adopting the above technical solution, start the hydraulic cylinder to drive the tower body to be erected. Subsequently, during the process of the hydraulic cylinder driving the tower body to be erected, the support rod will move along with the tower body, and the limiting rod will pass through the through hole. At the same time, the connecting component will drive the abutting block to slide and cover the through hole. When the hydraulic cylinder fully raises the tower, the limiting rod will abut against the abutting block. At this time, the abutting block and the fixing plate will jointly limit the movement of the support rod, thereby fixing the position of the support rod. Furthermore, the process of workers docking multiple support rods with each other and screwing screws can be omitted, and the position of the support rod is limited directly by the fixing rod fixed on the base. Compared with the fixing method of rotating screws, the supporting strength of the support rod for the tower can be improved.

[0008] Optionally, the limiting component includes a positioning seat fixedly connected to the base. The upper end of the positioning seat is hinged with a limiting cylinder. A limiting ring is fixedly connected to the mouth of the limiting cylinder. One end of the support rod is placed inside the limiting cylinder and is fixedly connected with a limiting block. The limiting block abuts against the limiting ring.

[0009] By adopting the above technical solution, the sliding direction of the support rod can be restricted by the limiting ring and the limiting block. When the hydraulic cylinder and the support rod reach the maximum displacement, the limiting ring will restrict the tower body from rotating away from the hydraulic cylinder side by abutting against the limiting block, thereby restricting the rotation direction of the tower body and further improving the supporting and limiting degree of the support rod for the tower.

[0010] Optionally, the connecting component includes a connecting rope and a driving block fixedly connected to the piston rod of the hydraulic cylinder. One end of the connecting rope is fixedly connected to the driving block, and the other end of the connecting rope is fixedly connected to the abutting block.

[0011] By adopting the above technical solution, the driving block can move together with the hydraulic cylinder, and the hydraulic cylinder can drive the abutting block to move through the connecting rope and restrict the limiting rod.

[0012] Optionally, the abutting block is provided as an inclined surface, and the inclined surface of the abutting block abuts against the limiting rod. A locking component for fixing the abutting block on the fixing plate is provided on the fixing plate.

[0013] By adopting the above technical solution, it is convenient for the abutting block to enter between the limiting rod and the fixing plate, and at the same time, the abutting block can be fixed by the locking part, thereby reducing the situation of the abutting block slipping.

[0014] Optionally, the locking component includes a displacement block fixedly connected to the abutting block. An adjusting bolt is rotatably connected to the displacement block. The rod part of the adjusting bolt passes through the displacement block and is threadedly connected to the fixing plate.

[0015] By adopting the above technical solution, the displacement block can move together with the abutting block. When the rod portion of the adjusting bolt abuts against the fixing plate, the adjusting bolt can be rotated to thread the rod portion of the adjusting bolt with the fixing plate, so that the abutting block can be fixed on the fixing plate. At the same time, when the strut applies a force to the inclined surface of the abutting block, the fixing rod can share part of the force for the abutting block.

[0016] Optionally, the connecting rope includes a main rope and two sub-ropes. One end of the main rope is fixedly connected to the driving block, the other end of the main rope is fixedly connected to the two sub-ropes, and the end of the sub-rope away from the main rope is fixedly connected to the abutting block, and the sub-ropes are located on both sides of the abutting block.

[0017] By adopting the above technical solution, the abutting block can be driven by the two sub-ropes, so that the abutting block slides more smoothly on the fixing plate.

[0018] Optionally, a safety rope is provided between the two sub-ropes. One end of the safety rope is fixedly connected to one of the sub-ropes. A connection hole is formed in the limiting rod. The other end of the safety rope passes through the connection hole and is provided with a locking member for fixing the two with the other sub-rope.

[0019] By adopting the above technical solution, the safety rope can be connected to the two sub-ropes, thereby restricting the positions of the two sub-ropes. At the same time, the safety rope can limit the movement of the limiting rod. Furthermore, when the force applied to the strut towards the tower body side is too large, the safety rope can limit the movement of the driving rod, thereby further improving the stability of the tower body.

[0020] Optionally, the locking member is set as a buckle.

[0021] By adopting the above technical solution, the safety rope can be quickly fixed between the two sub-ropes through the buckle.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. The process of workers docking multiple struts with each other and screwing screws can be omitted, and the position of the strut can be limited directly by the fixing rod fixed on the base. Compared with the fixing method of rotating screws, the supporting strength of the strut for the tower can be improved; 2. The displacement block can move together with the abutting block. When the rod portion of the adjusting bolt abuts against the fixing plate, the adjusting bolt can be rotated to thread the rod portion of the adjusting bolt with the fixing plate, so that the abutting block can be fixed on the fixing plate. At the same time, when the strut applies a force to the inclined surface of the abutting block, the fixing rod can share part of the force for the abutting block; 3. At the same time, the safety rope can limit the movement of the limiting rod, which can further improve the stability of the tower body. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0024] Figure 2 It is a schematic diagram of the structure of the limiting component of an embodiment of the present application; Figure 3 It is a schematic diagram of the structure of the locking component of an embodiment of the present application.

[0025] In the figure, 1, base; 2, tower body; 3, hydraulic cylinder; 4, fixed rod; 41, fixed plate; 411, receiving block; 5, support rod; 51, limiting rod; 511, connecting hole; 6, limiting component; 61, limiting cylinder; 62, limiting ring; 63, limiting block; 64, positioning seat; 7, abutting block; 8, connecting component; 81, driving block; 82, connecting rope; 821, main rope; 822, sub-rope; 83, guide pulley; 9, locking component; 91, displacement block; 92, adjusting bolt; 10, safety rope; 11, locking piece. Specific embodiments

[0026] The following will Figure 1 - with reference to the attached Figure 3 , further elaborate on the present application in detail.

[0027] An embodiment of the present application is: a tower lifting device for a drilling rig. Referring to Figure 1 , it includes a base 1 erected on the ground, and the base 1 is set in a cuboid shape. One side of the upper end of the base 1 is provided with a tower body 2, and one end of the tower body 2 is rotatably connected to the base 1. A hydraulic cylinder 3 is installed on the upper end surface of the base 1, the bottom end of the hydraulic cylinder 3 is hinged to the base 1, and the piston rod of the hydraulic cylinder 3 is hinged to the side wall of the tower body 2. Thus, by starting the hydraulic cylinder 3, the hydraulic cylinder 3 can drive the tower body 2 to lift the frame.

[0028] Both sides of the hydraulic cylinder 3 are provided with fixed rods 4, and the length direction of the fixed rods 4 is perpendicular to the upper end surface of the base 1. One end of the fixed rod 4 is fixedly connected to the base 1, and the other end of the fixed rod 4 is fixedly connected with a fixed plate 41, and the fixed plate 41 is set in a cuboid shape. One side of the fixed rod 4 is provided with a support rod 5, and the support rod 5 corresponds to the fixed rod 4 one by one. One end of the support rod 5 is hinged to the tower body 2. The base 1 is provided with a limiting component 6 for restricting the sliding of the support rod 5.

[0029] Referring to Figure 1 and Figure 2, the limiting component 6 includes a positioning seat 64, and the positioning seat 64 is fixedly connected to the upper end surface of the base 1. A limiting cylinder 61 is provided at the upper end of the positioning seat 64, and the bottom end of the limiting cylinder 61 is hinged to the positioning seat 64. A limiting ring 62 is fixedly connected to the inner side wall at the opening of the limiting cylinder 61. One end of the support rod 5 away from the tower body 2 is slidably inserted into the limiting cylinder 61, and a limiting block 63 is fixedly connected to one end of the support rod 5 placed inside the limiting cylinder 61, and the limiting block 63 abuts against the limiting ring 62.

[0030] Furthermore, when the hydraulic cylinder 3 and the support rod 5 reach the maximum displacement, the limiting ring 62 will abut against the limiting block 63, thereby restricting the tower body 2 from rotating away from the hydraulic cylinder 3.

[0031] Refer to Figure 1 and Figure 3 , a limiting rod 51 is provided on the support rod 5. The length direction of the limiting rod 51 is perpendicular to the length direction of the support rod 5. The limiting rod 51 passes through and is fixedly connected to the support rod 5. A through hole for the support rod 5 and the limiting rod 51 to pass through is formed on the fixed plate 41, and both the support rod 5 and the limiting rod 51 can slide in the through hole. A contact block 7 is slidably connected to the fixed plate 41. The contact block 7 is set as an inclined surface, and the height of the contact block 7 gradually increases from bottom to top. The inclined surface of the contact block 7 abuts against the limiting rod 51. A connecting component 8 for connecting the two is provided between the contact block 7 and the hydraulic cylinder 3.

[0032] The connecting component 8 includes a connecting rope 82 and a driving block 81. The driving block 81 is fixedly connected to the piston rod of the hydraulic cylinder 3. Two connecting ropes 82 are provided, and the connecting ropes 82 correspond to the fixed plate 41 one by one. At the same time, in order to guide the connecting rope 82, guide wheels 83 are installed on both the base 1 and the fixed rod 4. The connecting rope 82 bypasses the guide wheel 83 and abuts against the guide wheel 83. The connecting rope 82 includes a main rope 821 and two sub-ropes 822. A sliding hole is formed on the fixed rod 4 along the length direction of the fixed rod 4 for the main rope 821 to move. One end of the main rope 821 passes through the sliding hole on the fixed rod 4 and is fixedly connected to the driving block 81. The other end of the main rope 821 is fixedly connected to both of the two sub-ropes 822, and the two sub-ropes 822 are arranged in a Y shape with the main rope 821. One end of the sub-rope 822 away from the main rope 821 is fixedly connected to the contact block 7, and the sub-ropes 822 are located on both sides of the contact block 7.

[0033] Thus, when the piston rod of the hydraulic cylinder 3 extends, the driving block 81 will move together with the piston of the hydraulic cylinder 3. Thus, the connecting rope 82 can drive the contact block 7 to move downward along the fixed plate 41, cover the through hole on the fixed plate 41, and finally the contact block 7 will abut against the limiting rod 51 and restrict the limiting rod 51 from returning to the through hole on the fixed plate 41.

[0034] A safety rope 10 is provided between the two branch ropes 822, one end of the safety rope 10 is fixedly connected to one of the branch ropes 822, and a connection hole 511 is provided on the limit rod 51, and the connection hole 511 is arranged along the length direction of the limit rod 51. The other end of the safety rope 10 passes through the connection hole 511 and a locking member 11 is provided between the other end of the safety rope 10 and the other branch rope 822 for fixing the two. The locking member 11 in this embodiment is set as a lock buckle, and the lock buckle fastens the end of the safety rope 10 to the branch rope 822. Thus, the safety rope 10 is connected to the two branch ropes 822, thereby limiting the positions of the two branch ropes 822, and the safety rope 10 can limit the movement of the limit rod 51.

[0035] In order to improve the stability of the abutment block 7 on the fixing plate 41 , a locking assembly 9 for fixing the abutment block 7 on the fixing plate 41 is provided on the fixing plate 41 .

[0036] The locking assembly 9 includes two displacement blocks 91, which are provided in two and are respectively located on both sides of the abutment block 7. The displacement block 91 is fixedly connected to the abutment block 7. An adjusting bolt 92 is rotatably connected to the displacement block 91. The fixing plate 41 includes two receiving blocks 411 fixedly connected to the fixing plate 41, and the receiving blocks 411 correspond to the displacement blocks 91 one by one. The rod of the adjusting bolt 92 passes through the displacement block 91 and is threadedly connected to the fixing plate 41.

[0037] Therefore, when the abutment block 7 abuts against the limiting rod 51 under the action of the connecting rope 82, the rod of the adjusting bolt 92 can abut against the fixing plate 41, and then the adjusting bolt 92 can be rotated to make the rod of the adjusting bolt 92 threadedly connected with the fixing plate 41, so that the abutment block 7 can be fixed on the fixing plate 41, and at the same time, the inclined surface of the abutment block 7 is pressed against the arc-shaped side wall of the limiting rod 51.

[0038] The implementation principle of the embodiment of the present application is: when lifting the frame, start the hydraulic cylinder 3, so that the hydraulic cylinder 3 drives the tower body 2 to lift the frame. At the same time, in the process of the hydraulic cylinder 3 driving the tower body 2 to lift the frame, the support rod 5 will move together with the tower body 2, and the support rod 5 will slide in the limiting tube 61. At the same time, the limiting rod 51 on the support rod 5 will pass through the through hole, and the abutment block 7 will block the through hole under the connection of the connecting assembly 8.

[0039] When the hydraulic cylinder 3 raises the tower completely, the limiting rod 51 will abut against the abutment block 7. Then, the adjusting bolt 92 is turned to thread the adjusting bolt 92 into the receiving block 411, so that the abutment block 7 is fixed to the fixing plate 41. Finally, the safety rope 10 is passed through the connecting hole 511 and fixed to the branch rope 822 through the locking member 11, thereby further limiting the position of the limiting rod 51.

[0040] When the support rod 5 has a tendency to move towards the side closer to the limit cylinder 61, the abutting block 7 will limit the movement of the limit rod 51. At the same time, the fixing plate 41 and the fixing rod 4 will share most of the force from the support rod 5, reducing the force on the adjusting bolt 92.

[0041] When the support rod 5 has a tendency to move away from the limit cylinder 61, the limit block 63 will abut against the limit ring 62, thereby restricting the movement of the support rod 5.

[0042] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A tower lifting and lowering device for a drilling rig, comprising a base (1) and a tower body (2), wherein the tower body (2) is rotatably connected to the base (1), and characterized in that: A hydraulic cylinder (3) is mounted on the base (1), a piston rod of the hydraulic cylinder (3) being hinged to the tower body (2), fixing rods (4) being arranged on both sides of the hydraulic cylinder (3) body, the fixing rods (4) being fixedly connected to the base (1), a fixing plate (41) being fixedly connected to the top of the fixing rod (4), a support rod (5) being arranged on one side of the fixing rod (4), one end of the support rod (5) being hinged to the tower body (2), a limiting assembly (6) for limiting the sliding of the support rod (5) being arranged on the base (1), a limiting rod (51) being fixedly connected to the support rod (5), a through hole for allowing the support rod (5) and the limiting rod (51) to pass through being opened on the fixing plate (41), an abutment block (7) being slidably connected to the fixing plate (41), a connecting assembly (8) for connecting the abutment block (7) and the hydraulic cylinder (3) being arranged between the two.

2. A tower lifting and lowering device for a drilling rig according to claim 1, characterized in that: The limiting assembly (6) comprises a positioning seat (64) fixedly connected to the base (1); the upper end of the positioning seat (64) is hingedly connected to a limiting cylinder (61); the tube mouth of the limiting cylinder (61) is fixedly connected to a limiting ring (62); one end of the support rod (5) is placed in the limiting cylinder (61) and fixedly connected to a limiting block (63); the limiting block (63) is in contact with the limiting ring (62).

3. A tower lifting and lowering device for a drilling rig according to claim 1, characterized in that: The connecting assembly (8) comprises a connecting rope (82) and a driving block (81) fixedly connected to the piston rod of the hydraulic cylinder (3), one end of the connecting rope (82) being fixedly connected to the driving block (81), and the other end of the connecting rope (82) being fixedly connected to the abutting block (7).

4. A tower lifting and lowering device for a drilling rig according to claim 3, characterized in that: The abutment block (7) is configured as an inclined surface, and the inclined surface of the abutment block (7) abuts against the limiting rod (51), and the fixing plate (41) is provided with a locking assembly (9) for fixing the abutment block (7) on the fixing plate (41).

5. A tower lifting and lowering device for a drilling rig according to claim 4, characterized in that: The locking assembly (9) comprises a displacement block (91) fixedly connected to the abutment block (7), an adjustment bolt (92) being rotatably connected to the displacement block (91), and a rod portion of the adjustment bolt (92) passing through the displacement block (91) and being threadedly connected to the fixing plate (41).

6. A tower lifting and lowering device for a drilling rig according to claim 5, characterized in that: The connecting rope (82) comprises a main rope (821) and two branch ropes (822), one end of the main rope (821) is fixedly connected to the driving block (81), the other end of the main rope (821) is fixedly connected to the two branch ropes (822), one end of the branch rope (822) away from the main rope (821) is fixedly connected to the abutment block (7), and the branch ropes (822) are located on both sides of the abutment block (7).

7. A tower lifting and lowering device for a drilling rig according to claim 6, characterized in that: A safety rope (10) is provided between the two branch ropes (822), one end of the safety rope (10) is fixedly connected to one of the branch ropes (822), a connecting hole (511) is provided on the limiting rod (51), the other end of the safety rope (10) passes through the connecting hole (511) and is provided with a locking piece (11) for fixing the two together with the other branch rope (822).

8. A tower lifting and lowering device for a drilling rig according to claim 7, characterized in that: The locking piece (11) is configured as a lock buckle.

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