A rotary drilling rig

Abstract

The present application relates to the technical field of drilling rig equipment, and particularly relates to a rotary drilling rig, which comprises a drilling rig body, a drill bit body and a connecting mechanism, the connecting mechanism is arranged on the drilling rig body, and the connecting mechanism comprises two sliding frames, a hanging plate, two sliding rods, a guide component and a winding component, two hanging blocks are fixedly connected to one side of the outer surface of each sliding frame, and the hanging plate is slidingly sleeved between the outer surfaces of the four hanging blocks. In the present application, when in use, the bottom end of the drill mast body is moved above the drill bit body through the vehicle body, the release of the traction rope body is then controlled and started by the winch body, the limiting assembly is then inserted into the connecting end of the drill bit body, the two pressing blocks are capable of being clamped in the drill bit body through the clamping blocks, the winch body is reversely operated to wind the traction rope body at this time, and the traction rope body is capable of gradually pulling the hanger to a vertical state under the support and guidance of the moving guide wheel and the fixed guide wheel.

Description

Technical Field

[0001] The invention belongs to the technical field of drilling equipment, in particular to a rotary drilling rig. Background Art

[0002] A rotary drilling rig is a construction machine suitable for drilling holes in building foundation projects. It is mainly suitable for construction in sandy soil, clay soil, silty soil and other soil layers. It is widely used in various foundation construction projects such as bored piles, continuous walls, and foundation reinforcement. It generally adopts a hydraulic crawler telescopic chassis, a self-lifting and foldable drill mast, a telescopic drill rod, automatic vertical detection and adjustment, and a digital display of hole depth. The whole machine is generally operated with hydraulic pilot control and load sensing, and is characterized by light and comfortable operation.

[0003] However, in the prior art, due to different usage requirements, the existing rotary drilling rigs need to replace different drill bits in different usage occasions and stages. During the actual construction process, the drill bit is stored safely and stably, and is mostly placed flat in a designated position. As a result, during the drill bit replacement process of the existing rotary drilling rig, the drill bit needs to be pushed to a vertical state through the drill rod. During this process, the drill rod is easily damaged by incorrect operation, and the actual operation is difficult. At the same time, the drill bit is easily squeezed and collided in the bottom end structure of the drill bit during the pushing and adjustment process, which affects the normal use of the drill bit, resulting in poor efficiency in the actual replacement of drill bits in the existing rotary drilling rig. Summary of the Invention

[0004] The purpose of the present invention is to provide a rotary drilling rig that can conveniently replace the drill bit body, avoid damage to the drill rod body and the drill bit body during the replacement process, and improve the actual drill bit body replacement efficiency.

[0005] The technical solution adopted by the present invention is as follows: a rotary drilling rig, comprising: a drilling rig body, a drill bit body and a connecting mechanism, wherein the connecting mechanism is arranged on the drilling rig body, the connecting mechanism comprises two sliding frames, a hanging plate, two sliding bars, a guide component and a winding component, the outer surface of one side of each sliding frame is fixedly connected to two hanging blocks, the hanging plate is slidably sleeved between the outer surfaces of the four hanging blocks, the two sliding bars are both threadedly connected to the outer surface of one side of the hanging plate, the guide component is arranged on the two sliding frames, and the winding component is arranged on the hanging plate;

[0006] The drill body is arranged on the winding component.

[0007] The four hanging blocks are divided into two groups. Two connecting rods are slidably passed through the interior of each group of hanging blocks. One end of each connecting rod is threadedly connected to a connecting nut.

[0008] Among them, there are two groups of guide components, each group of guide components includes two pulleys, two supporting wheels, two adjusting bolts and two guide plates, the two pulleys are rotatably connected to the inside of the corresponding sliding frame, the two supporting wheels are rotatably connected to the outer surface of one side of the corresponding hanging block, the two adjusting bolts are fixedly connected to the outer surface of the other side of the corresponding sliding frame, and the two guide plates are slidably sleeved on the outer surface of the corresponding adjusting bolts.

[0009] Wherein, the outer surface of the other side of each sliding frame is located on one side of the corresponding adjusting bolt and is fixedly connected with a supporting piece, and the outer surface of each adjusting bolt is threadedly connected with two adjusting nuts.

[0010] Among them, the outer surface of one side of each guide piece and the corresponding adjusting threaded nut are both in contact with each other, and the outer surface of one side of each support piece and the outer surface of the corresponding guide piece are both in contact with each other.

[0011] Wherein, a first threaded hole is opened on the outer surface of one side of each hanging block, and four second threaded holes are opened on the outer surface of the other side of the hanging plate. A connecting bolt is threadedly connected to the inside of each second threaded hole and the corresponding first threaded hole.

[0012] Among them, the winding component includes a winch body, a fixed guide wheel, two limit frames, a movable guide wheel and a limit assembly, the fixed guide wheel is rotatably connected between the relative outer surfaces of the hanging plate, each of the limit frames is slidably mounted on the outer surface of the corresponding slide bar, the movable guide wheel is rotatably connected between the relative outer surfaces of the two limit frames, the winch body is fixedly connected to the outer surface of the other side of the moving hanging plate, the output end of the winch body is wrapped with a traction rope body, and the limit assembly is arranged on the traction rope body.

[0013] Among them, the limiting assembly includes a hanger, a lifting frame, a lifting rod, a push block and two pressure blocks, the hanger is fixedly connected to one end of the traction rope body, the lifting frame is rotatably connected to the bottom of the hanger, the lifting rod is slidably inserted into the top of the lifting frame, the push block is fixedly connected to the bottom end of the lifting rod, and the two pressure blocks are slidably sleeved on the outer surface of the push block, the outer surface of one side of each pressure block is in contact with the inner surface wall of the drill body, and the outer surface of one side of each pressure block is fixedly connected to a clamping block.

[0014] Wherein, a connecting threaded hole is provided at one end of each slide bar, and a plurality of positioning holes are provided at equal intervals at the top of each slide bar.

[0015] Among them, the top of each limit frame is fixedly connected to a positioning frame, the inner top surface of each positioning frame is slidably penetrated by a positioning bolt, the bottom end of each positioning bolt slides through the corresponding limit frame top, the bottom end of each positioning bolt extends to the inside of the corresponding positioning hole, the outer surface of each positioning bolt is sleeved with a retaining ring, and the outer surface of each positioning bolt is slidably sleeved with a limit spring.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] (1) In the present invention, when in use, the bottom end of the drill mast body is moved to the top of the drill bit body through the vehicle body, and then the winch body is controlled to start to release the traction rope body, and then the limit assembly is inserted into the connecting end of the drill bit body, so that the two pressure blocks can be clamped inside the drill bit body through the clamping block. At this time, the winch body is reversed to reel in the traction rope body. Under the support and guidance of the moving guide wheel and the fixed guide wheel, the traction rope body can gradually pull the hanger to a vertical state. During this process, the hanger cooperates with the lifting bracket to pull the lifting rod toward the outside of the connecting end of the drill bit body, and then the lifting rod can drive the push block to move toward the outside of the connecting end of the drill bit body, and then the push block can squeeze the pressure blocks on both sides to fit tightly against the inner wall of the drill bit body during the movement. When the push block cannot continue to move due to the squeezing of the pressure block, the continuous traction of the traction rope body makes the hanger cooperate with the lifting bracket to pull the lifting rod toward the outside of the connecting end of the drill bit body. The lifting frame, lifting rod, pushing block, clamping block and pressing block can gradually pull the connecting end of the drill bit body to a vertical state until the drill bit body is completely separated from the ground. At this time, the existing pad is placed under the drill bit body, and at the same time, by rotating the drill bit in the horizontal direction, the connection direction of the bottom end of the drill rod body and the connecting end of the drill bit body are consistent. Then, by controlling the winch body, the drill bit body can be smoothly dropped to the top of the existing pad in a vertical state, and then the limit assembly is taken out to maintain the moving direction of the vehicle body. The drill rod body can be easily moved to the top of the connecting end of the drill bit body, and then the drill rod can be easily connected to the drill bit body, so that the equipment can efficiently replace the drill bit body, and at the same time, it can ensure the integrity of the drill rod body and the drill bit body, avoid damage to the drill rod body and the drill bit body, and enable the equipment to efficiently perform its functions.

[0018] (2) In the present invention, according to the actual specifications of the drill body, the positioning bolt is lifted up so that the positioning bolt can be separated from the corresponding positioning hole. At this time, the use position of the limit frame is adjusted under the position limit of the slide bar, so that the movable guide wheel can follow the movement, and then move to ensure that the drill body is not easy to collide with the drill rod body when it is suspended. By releasing the positioning bolt, the positioning bolt can be inserted into the positioning hole through the limit spring and the retaining ring, and then the position of the limit frame is fixed and restricted. At the same time, when the drill body is stably placed on the top of the existing pad, by knocking the top of the lifting rod, the lifting rod can squeeze the push block to move down quickly, thereby increasing the gap between the push block and the pressure block. At this time, the pressure block can be conveniently separated from the inner wall of the connecting end of the drill body. The distance between the suspended drill bit body and the ground can be adjusted by adjusting the height of the power head body and the support wheel, thereby conveniently carrying the drill bit to move the position, facilitating the synchronous movement and transfer of the replaced drill bit body, and facilitating the placement of existing pads, thereby improving the actual use effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a first perspective stereogram of the present invention;

[0020] Figure 2 This is a second perspective stereogram of the present invention;

[0021] Figure 3 A partially cutaway perspective view of the connecting mechanism of the present invention from a first viewing angle;

[0022] Figure 4 For the present invention Figure 3 Enlarged view of part A;

[0023] Figure 5 For the present invention Figure 3 Enlarged view of part B;

[0024] Figure 6 For the present invention Figure 3 Enlarged view of part C in the middle;

[0025] Figure 7 A partially sectional and expanded perspective view of the connecting mechanism of the present invention from a second viewing angle;

[0026] Figure 8 For the present invention Figure 7 Enlarged view of part D in the middle;

[0027] Figure 9 For the present invention Figure 7 Enlarged view of part E in the middle;

[0028] Figure 10 It is a three-dimensional diagram of the drilling rig body of the present invention.

[0029] Markings in the figure: 1. Connecting mechanism; 101. Sliding frame; 102. Hanging block; 103. Connecting rod; 104. Pulley; 105. Support wheel; 106. Adjusting bolt; 107. Guide plate; 108. Support plate; 109. Hanging plate; 110. Winch body; 111. Fixed guide wheel; 112. Sliding bar; 113. Limiting frame; 114. Moving guide wheel; 115. Positioning bolt; 116. Abutment ring; 117. Pressing block; 118. Block; 119. Pushing block; 120. Lifting rod; 121. Lifting frame; 122. Hanging frame; 2. Drilling rig body; 201. Vehicle body; 202. Drill mast body; 203. Power head body; 204. Drill rod body; 3. Drill bit body. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] For example, see Figure 1 and Figure 2 A rotary drilling rig is composed of a drilling rig body 2, a drill bit body 3 and a connecting mechanism 1.

[0032] The details are as follows:

[0033] See also Figure 1 、 Figure 2 and Figure 10The drill bit body 3 is arranged on the winding component. The drilling rig body 2 includes a vehicle body 201, a drill mast body 202, a power head body 203 and a drill rod body 204. The drill mast body 202 is arranged on the vehicle body 201. The power head body 203 and the drill rod body 204 are both arranged on the drill mast body 202. The two sliding frames 101 are respectively slidably sleeved on both sides of the drill mast body 202. The outer surface of each pulley 104 is in contact with the drill mast body 202. The outer surfaces of the two support wheels 105 are in contact with the outer surface of one side of the drill mast body 202. The outer surface of each guide piece 107 is in contact with the outer surface of the power head body 203. When the drill bit body 3 is in a suspended state, By controlling and adjusting the use height of the power head body 203, during the movement of the power head body 203, the slide frame 101 can move along with the power head body 203 through the adjustment bolt 106 and the guide piece 107 under the support of the pulley 104 and the support wheel 105, so that the slide frame 101 can synchronously drive the hanging plate 109 and the slide bar 112 to move through the hanging block 102, and then the distance between the suspended drill bit body 3 and the ground can be adjusted, so that the drill bit can be conveniently carried and moved through the vehicle body 201, which facilitates the synchronous movement and transfer of the replaced drill bit body 3, and at the same time facilitates the placement of the existing pad, thereby improving the actual use effect of the equipment;

[0034] See also Figure 3-Figure 9, the connecting mechanism 1 is arranged on the drilling rig body 2, the connecting mechanism 1 includes two sliding frames 101, a hanging plate 109, two slides 112, a guide component and a winding component. The outer surface of one side of each sliding frame 101 is fixedly connected to two hanging blocks 102, the hanging plate 109 is slidably sleeved between the outer surfaces of the four hanging blocks 102, the two slides 112 are threadedly connected to the outer surface of one side of the hanging plate 109, the guide component is arranged on the two sliding frames 101, and the winding component is arranged on the hanging plate 109. The four hanging blocks 102 are divided into two groups, and each group of hanging blocks 102 has two connecting rods 103 slidingly passed through the inside, and each connecting rod 103 is threadedly connected to a connecting nut at one end. There are two groups of guide components in total, and each group of guide components includes two pulleys 104, two supports The support wheel 105, two adjusting bolts 106 and two guide pieces 107, the two pulleys 104 are rotatably connected to the corresponding sliding frame 101, the two support wheels 105 are rotatably connected to the outer surface of one side of the corresponding hanging block 102, the two adjusting bolts 106 are fixedly connected to the outer surface of the other side of the corresponding sliding frame 101, and the two guide pieces 107 are slidably sleeved on the outer surface of the corresponding adjusting bolts 106. The outer surface of the other side of each sliding frame 101 is located on one side of the corresponding adjusting bolt 106 and is fixedly connected with a support piece 108. The outer surface of each adjusting bolt 106 is threadedly connected to two adjusting nuts. The outer surface of one side of each guide piece 107 is fitted with the corresponding adjusting threaded nut. The outer surface of one side of each support piece 108 is fitted with the outer surface of the corresponding guide piece 107. 02 is provided with a first threaded hole on the outer surface of one side, and four second threaded holes are provided on the outer surface of the other side of the hanging plate 109. A connecting bolt is threadedly connected to the inside of each second threaded hole and the corresponding first threaded hole. The winding component includes a winch body 110, a fixed guide wheel 111, two limit frames 113, a movable guide wheel 114 and a limit assembly. The fixed guide wheel 111 is rotatably connected between the opposite outer surfaces of the hanging plate 109, and each limit frame 113 is slidably sleeved on the outer surface of the corresponding slide bar 112. The movable guide wheel 114 is rotatably connected between the opposite outer surfaces of the two limit frames 113. The winch body 110 is fixedly connected to the outer surface of the other side of the mobile hanging plate 109. The output end of the winch body 110 is wound with a traction rope body. The limit assembly is Placed on the traction rope body, the limiting assembly includes a hanger 122, a lifting frame 121, a lifting rod 120, a push block 119 and two pressing blocks 117. The hanger 122 is fixedly connected to one end of the traction rope body, the lifting frame 121 is rotatably connected to the bottom of the hanger 122, the lifting rod 120 is slidably inserted into the top of the lifting frame 121, and the push block 119 is fixedly connected to the bottom of the lifting rod 120. The two pressing blocks 117 are slidably sleeved on the outer surface of the push block 119. The outer surface of one side of each pressing block 117 is in contact with the inner surface wall of the drill body 3. The outer surface of one side of each pressing block 117 is fixedly connected to a clamping block 118. A connecting threaded hole is provided at one end of each slide bar 112. A plurality of positioning holes are equidistantly provided on the top of each slide bar 112. The top of each limit frame 113 is fixedly connected to a positioning frame.The top surface of each positioning frame is slidably penetrated by a positioning bolt 115, and the bottom end of each positioning bolt 115 slides through the top of the corresponding limit frame 113, and the bottom end of each positioning bolt 115 extends into the corresponding positioning hole. The outer surface of each positioning bolt 115 is sleeved with a collar 116, and the outer surface of each positioning bolt 115 is slidably sleeved with a limit spring. The bottom end of the drill mast body 202 is moved above the drill bit body 3 through the vehicle body 201, and then the winch body 110 is controlled to start to release the traction rope body, and then the limit assembly is inserted into the connecting end of the drill bit body 3, so that the two pressure blocks 117 can be clamped into the inside of the drill bit body 3 through the clamping block 118. At this time, the winch body 110 is reversed to reel in the traction rope body. When the guide wheel 114 and the fixed Under the support and guidance of the fixed guide wheel 111, the traction rope body can gradually pull the hanger 122 to a vertical state. During this process, the hanger 122 cooperates with the lifting frame 121 to pull the lifting rod 120 toward the outside of the connection end of the drill bit body 3, and then the lifting rod 120 can drive the push block 119 to move toward the outside of the connection end of the drill bit body 3, and then the push block 119 can squeeze the pressure blocks 117 on both sides to fit tightly against the inner wall of the drill bit body 3 during the movement. When the push block 119 can no longer move under the squeezing of the pressure block 117, the continuous traction of the traction rope body enables the hanger 122 to cooperate with the lifting frame 121, the lifting rod 120, the push block 119, the clamping block 118 and the pressure block 117 to gradually pull the connection end of the drill bit body 3 to a vertical state until the drill bit body 3 is completely separated from the ground. At this time, the existing pad is placed under the drill bit body 3. At the same time, by rotating the drill bit in the horizontal direction, the bottom end of the drill rod body 204 is connected to the connection end of the drill bit body 3 in the same direction. Then, by controlling the winch body 110, the drill bit body 3 can be steadily dropped to the top of the existing pad in a vertical state. Then, the limit component is taken out, and the moving direction of the vehicle body 201 is maintained. The drill rod body 204 can be easily moved to the top of the connection end of the drill bit body 3, and then the drill rod can be easily connected to the drill bit body 3, so that the equipment can efficiently replace the drill bit body 3. At the same time, the integrity of the drill rod body 204 and the drill bit body 3 can be ensured to avoid damage to the drill rod body 204 and the drill bit body 3, so that the equipment can The functions should be realized efficiently. At the same time, according to the actual specifications of the drill body 3, the positioning bolt 115 is lifted up so that the positioning bolt 115 can be separated from the corresponding positioning hole. At this time, the limit frame 113 is moved to the use position under the position restriction of the slide bar 112, so that the movable guide wheel 114 can follow the movement, and then move to ensure that the drill body 3 is not easy to collide with the drill rod body 204 when suspended. By releasing the positioning bolt 115, the positioning bolt 115 can be inserted into the positioning hole at this time through the limit spring and the retaining ring 116, and then the position of the limit frame 113 is fixed. At the same time, when the drill body 3 is stably placed on the top of the existing pad, the top of the lifting rod 120 is knocked, so that the lifting rod 120 can squeeze the push block 119 and move it down quickly.Then, the gap between the push block 119 and the pressure block 117 is increased, and the pressure block 117 can be easily separated from the inner wall of the connection end of the drill body 3, thereby quickly separating the limit assembly from the drill body 3, making it easier to connect the drill rod body 204 to the drill body 3, and improving the actual replacement efficiency of the drill body 3.

[0035] When in use, the bottom end of the drill mast body 202 is moved to above the drill bit body 3 through the vehicle body 201, and then the winch body 110 is controlled to start to release the traction rope body, and then the limit assembly is inserted into the connecting end of the drill bit body 3, so that the two pressure blocks 117 can be clamped into the inside of the drill bit body 3 through the clamping block 118. At this time, the winch body 110 is reversed to reel in the traction rope body. Under the support and guidance of the mobile guide wheel 114 and the fixed guide wheel 111, the traction rope body can gradually pull the hanger 122 to a vertical state. In this process, the hanger 122 cooperates with the lifting frame 121 to pull the lifting rod 120 toward the outside of the connecting end of the drill bit body 3, and then the lifting rod 120 can drive the pushing block 119 to move toward the outside of the connecting end of the drill bit body 3. Then, the push block 119 can squeeze the pressure blocks 117 on both sides to fit tightly against the inner wall of the drill body 3 during the movement. When the push block 119 can no longer move under the squeezing of the pressure block 117, the continuous traction of the traction rope body enables the hanger 122 to cooperate with the lifting frame 121, the lifting rod 120, the push block 119, the clamping block 118 and the pressure block 117 to gradually pull the connecting end of the drill body 3 to a vertical state until the drill body 3 is completely separated from the ground. At this time, the existing pad is placed under the drill body 3, and at the same time, the horizontal direction angle of the drill bit is rotated to make the bottom end of the drill rod body 204 consistent with the connection direction of the connecting end of the drill body 3, and then the winch body 110 is controlled to make the drill body 3 fall steadily to the top of the existing pad in a vertical state, and then take The limit assembly is pulled out, thereby maintaining the moving direction of the vehicle body 201, and the drill rod body 204 can be easily moved to the top of the connection end of the drill bit body 3, and then the drill rod can be easily connected to the drill bit body 3, so that the equipment can efficiently replace the drill bit body 3, and at the same time ensure the integrity of the drill rod body 204 and the drill bit body 3, avoid damage to the drill rod body 204 and the drill bit body 3, and enable the equipment to efficiently perform its functions. At the same time, according to the actual specifications of the drill bit body 3, the positioning bolt 115 is lifted up so that the positioning bolt 115 can be disengaged from the corresponding positioning hole. At this time, the use position of the limit frame 113 is moved under the position limit of the slide bar 112, so that the mobile guide wheel 114 can follow the movement, and then move to ensure the drill bit body 3 When it is not easy to collide with the drill rod body 204 during suspension, the positioning bolt 115 is released so that the positioning bolt 115 can be inserted into the positioning hole at this time through the limit spring and the retaining ring 116 to fix the position of the limit frame 113. At the same time, when the drill bit body 3 is stably placed on the top of the existing pad, the top of the lifting rod 120 is knocked, so that the lifting rod 120 can squeeze the push block 119 and move it down quickly, thereby increasing the gap between the push block 119 and the pressure block 117. At this time, the pressure block 117 can be easily separated from the inner wall of the connecting end of the drill bit body 3, thereby quickly separating the limiting assembly from the drill bit body 3, making it convenient to connect the drill rod body 204 with the drill bit body 3, and improving the actual drill bit body 3 replacement efficiency. At the same time, when the drill bit body 3 is in a suspended state,By controlling and adjusting the operating height of the power head body 203, during the movement of the power head body 203, the slide frame 101, supported by the pulley 104 and support wheel 105, can follow the power head body 203 in positional movement through the adjustment bolt 106 and guide piece 107. This allows the slide frame 101 to synchronously drive the hanging plate 109 and the slide bar 112 to move through the hanging block 102, thereby adjusting the distance between the suspended drill bit body 3 and the ground. This allows the drill bit to be conveniently carried and moved by the vehicle body 201, facilitating the synchronous movement and transfer of the replaced drill bit body 3, and facilitating the placement of existing pads, thereby improving the actual use effect of the equipment.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rotary drilling rig comprising: The drilling rig body (2) and the drill bit body (3) are characterized by further comprising: A connecting mechanism (1), the connecting mechanism (1) is arranged on the drilling rig body (2), the connecting mechanism (1) comprises two sliding frames (101), a hanging plate (109), two sliding bars (112), a guide component and a winding component, the outer surface of one side of each sliding frame (101) is fixedly connected to two hanging blocks (102), the hanging plate (109) is slidably sleeved between the outer surfaces of the four hanging blocks (102), the two sliding bars (112) are both threadedly connected to the outer surface of one side of the hanging plate (109), the guide component is arranged on the two sliding frames (101), and the winding component is arranged on the hanging plate (109); The drill body (3) is arranged on the winding component, and the four hanging blocks (102) are divided into two groups. Two connecting rods (103) are slidably passed through the interior of each group of hanging blocks (102), and one end of each connecting rod (103) is threadedly connected to a connecting nut. There are two groups of guide components, and each group of guide components includes two pulleys (104), two supporting wheels (105), two adjusting bolts (106) and two guide pieces (107). The two pulleys (104) are rotatably connected to the interior of the corresponding sliding frame (101), the two supporting wheels (105) are rotatably connected to the outer surface of one side of the corresponding hanging block (102), and the two adjusting bolts (106) are fixed. Connected to the outer surface of the other side of the corresponding sliding frame (101), the two guide pieces (107) are slidably sleeved on the outer surface of the corresponding adjusting bolt (106), the outer surface of the other side of each sliding frame (101) is located on the side of the corresponding adjusting bolt (106) and is fixedly connected with a support piece (108), the outer surface of one side of each guide piece (107) and the corresponding adjusting threaded nut are both fitted, the outer surface of one side of each support piece (108) and the outer surface of the corresponding guide piece (107) are both fitted, the outer surface of one side of each hanging block (102) is provided with a first threaded hole, the outer surface of the other side of the hanging plate (109) is provided with four second threaded holes, the interior of each second threaded hole and the interior of the corresponding first threaded hole are both The threaded connection is provided with a connecting bolt, and the winding component includes a winch body (110), a fixed guide wheel (111), two limit frames (113), a movable guide wheel (114) and a limit assembly, wherein the fixed guide wheel (111) is rotatably connected between the relative outer surfaces of the hanging plate (109), and each limit frame (113) is slidably sleeved on the outer surface of the corresponding slide bar (112), and the movable guide wheel (114) is rotatably connected between the relative outer surfaces of the two limit frames (113). The winch body (110) is fixedly connected to the outer surface of the other side of the movable hanging plate (109), and a traction rope body is wound around the output end of the winch body (110), and the limit assembly is arranged on the traction rope body. On the body, the limiting assembly includes a hanger (122), a lifting frame (121), a lifting rod (120), a push block (119) and two pressing blocks (117), the hanger (122) is fixedly connected to one end of the traction rope body, the lifting frame (121) is rotatably connected to the bottom of the hanger (122), the lifting rod (120) is slidably inserted into the top of the lifting frame (121), the push block (119) is fixedly connected to the bottom end of the lifting rod (120), and the two pressing blocks (117) are slidably sleeved on the outer surface of the push block (119), the outer surface of one side of each pressing block (117) is in contact with the inner surface wall of the drill body (3), and the outer surface of one side of each pressing block (117) is fixedly connected to a clamping block (118).

2. A rotary drilling rig according to claim 1, characterized in that: A connecting threaded hole is provided at one end of each slide bar (112), and a plurality of positioning holes are provided at equal intervals at the top of each slide bar (112).

3. A rotary drilling rig according to claim 2, characterized in that: The top of each limit frame (113) is fixedly connected to a positioning frame, the inner top surface of each positioning frame is slidably penetrated by a positioning bolt (115), the bottom end of each positioning bolt (115) is slidably penetrated by the top of the corresponding limit frame (113), the bottom end of each positioning bolt (115) extends to the inside of the corresponding positioning hole, the outer surface of each positioning bolt (115) is sleeved with a retaining ring (116), and the outer surface of each positioning bolt (115) is slidably sleeved with a limit spring.

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