Movable drill jumbo

Abstract

The utility model discloses a movable drill jumbo which comprises a ship body, two transverse guide rails which correspond to each other front and back are fixed to the top face of the ship body, a main transverse frame is arranged above the two transverse guide rails, a winch body is fixed to the top face of the rear portion of the main transverse frame, and two guide seats are fixed to the top face of the front portion of the main transverse frame. The middle parts of the guide seats are movably connected with guide wheels through bearings; the rock drilling machine can move left and right on a ship body to change the left-right position of a hammer head point, the front-back position of the hammer head can be adjusted, the requirement for rock drilling position change is met, the adjusting precision is high, when the front-back position of a lower moving seat is adjusted, a positioning column can be pushed through a push rod of a positioning oil cylinder to conduct positioning, and the positioning effect is good; the adjustment is convenient.

Description

Technical Field:

[0001] The utility model relates to the technical field of hoisting equipment, and more particularly to a mobile rock drilling jumbo. Background Art:

[0002] For some existing underwater pipe tunnels to be installed in rivers, rock drilling and excavation and leveling of the caisson foundation bed are required before the installation of the caisson. Since the river where the installation is required is located in the urban inner river, adjacent to bridges and gas pipelines, conventional underwater blasting cannot be used. In addition, when using a dredger equipped with a pencil hammer for rock drilling and excavation, it is necessary to continuously lift the anchor, move the ship, and drop the anchor, with extremely low efficiency. Its efficiency is low and the effect is poor. Therefore, there is an urgent need to develop a fast underwater rock drilling device. Content of the Utility Model:

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a mobile rock drilling jumbo. Its hammer head can move left, right, front, and back to meet the need for changing the rock drilling position, with high adjustment accuracy. Moreover, when the lower moving seat adjusts its front and back positions, it can be pushed by the push rod of the positioning oil cylinder to position the positioning column, with good positioning effect and convenient adjustment. After the hull is fixed in one place, it can perform rock drilling and excavation on the riverbed for caisson installation within a certain range around it, with high efficiency and no need to frequently move the hull.

[0004] The solution of the utility model to solve the above technical problem is:

[0005] A mobile rock drilling jumbo, comprising a hull, on the top surface of the hull, two horizontally arranged guide rails corresponding to each other in the front and back are fixed. Above the two horizontally arranged guide rails, a main horizontal frame is provided. On the top surface of the rear part of the main horizontal frame, a winch main body is fixed. On the top surface of the front part of the main horizontal frame, two guide seats are fixed, and in the middle of each guide seat, a guide wheel is movably connected through a bearing.

[0006] On the top surface of the main transverse frame in front of each guide wheel, a connecting seat is fixedly installed. The two connecting seats are movably connected by a hinge shaft to two main support arms extending upward. The tops of the two main support arms are fixedly connected to the same upper connecting seat. The upper connecting seat is movably connected by a hinge shaft to two upper guide wheels. The rear part of the upper connecting seat is movably connected by a hinge shaft to two diagonal support arms. The bottoms of the two diagonal support arms are movably connected by a hinge shaft to two lower moving seats. On the left and right bottom surfaces of the bottom plates of the two lower moving seats, side support frames are fixedly installed. Positioning through holes are formed in the side support frames. In the middle of two front-and-rear extending connecting support beams on the left and right parts of the main transverse frame, a plurality of left-and-right extending connecting positioning tubes are provided. The left and right ends of the connecting positioning tubes extend out of the left and right side walls of the corresponding connecting support beams. The positioning through holes correspond to the corresponding connecting positioning tubes. The bottom surface of the lower moving seat presses against the top surface of the corresponding connecting support beam. The side support frame is located on the left or right side of the connecting support beam. A positioning oil cylinder is installed on the outer side wall of one of the side support frames. The positioning column fixed to the end of the push rod of the positioning oil cylinder is inserted into the corresponding positioning through hole and corresponds to the middle through hole of the corresponding connecting positioning tube.

[0007] A plurality of transverse connecting rods are fixed between the two main support arms. The two ends of the transverse connecting rods are fixed on the opposite wall surfaces of the two main support arms.

[0008] On the outer side wall of the corresponding one of the side support frames, a guiding sleeve part is fixedly installed. On the flange of the outer end surface of the guiding sleeve part, a positioning oil cylinder is fixedly connected by bolts. A positioning column is fixed to the end of the push rod of the positioning oil cylinder. The positioning column is inserted into the corresponding guiding sleeve part. The end of the positioning column is inserted into the corresponding positioning through hole. The outer side wall of the positioning column is close to the inner side wall of the corresponding guiding sleeve part.

[0009] In the middle of the front part of the main transverse frame, an oil cylinder connecting seat is fixedly installed. The middle part of the pushing oil cylinder is installed on the oil cylinder connecting seat. The rear end of the push rod of the pushing oil cylinder is movably connected by a hinge shaft to the front part of the lower moving seat.

[0010] The pushing oil cylinder is an oil cylinder installed with an internal displacement sensor.

[0011] On the left and right parts of the bottom of the main transverse frame, at the front and rear parts, moving frames are fixedly installed. The front and rear side support parts of the moving frame are located at the front and rear parts of the corresponding transverse guide rails. On the lower inner side walls of the two side support parts of the moving frame, guide wheels are movably connected by bearings. The guide wheels are inserted into the left-and-right extending guide grooves formed at the front or rear part of the corresponding transverse guide rails. The bottom surface of the guide wheels presses against the bottom surface of the corresponding guide grooves.

[0012] In the middle of the top surface of the transverse guide rail, a plurality of side connection seats corresponding to the front and back are fixed. Both ends of the plurality of rollers are fixed on the side connection seats corresponding to the front and back. A transmission sprocket is arranged between the upper parts of the two side support parts of the moving frame. Both ends of the rotating shaft fixed at the center of the transmission sprocket are movably connected to the two side support parts through bearings. The tooth grooves formed on the outer side wall of the transmission sprocket are matched with the rollers;

[0013] On the outer side wall of one side of a side connection seat of the moving frame, a reduction motor is fixed, and the reduction motor drives the corresponding rotating shaft to rotate.

[0014] The prominent effect of the present utility model is:

[0015] Compared with the prior art, its hammer head can move left and right, front and back to meet the need of changing the rock drilling position. Its adjustment accuracy is high. Moreover, when the lower moving seat adjusts its front and back positions, it can be pushed by the push rod of the positioning oil cylinder to make the positioning column for positioning. Its positioning effect is good and the adjustment is convenient. It only needs to fix the hull in one place, and then it can carry out rock drilling and excavation on the riverbed for the installation of immersed tubes within a certain range around it. Its efficiency is high and there is no need to frequently move the hull. Description of the drawings:

[0016] Figure 1 is a partial structural schematic diagram of the present utility model;

[0017] Figure 2 is Figure 1 a partial enlarged view of

[0018] Figure 3 is a partial side view of the present utility model;

[0019] Figure 4 is Figure 3 a partial enlarged view of

[0020] Figure 5 is a partial top view of the winch main body;

[0021] Figure 6 is a partial cross-sectional view of the winch main body;

[0022] Figure 7 is a partial structural schematic diagram of the expansion device of the winch main body;

[0023] Figure 8 is Figure 7 a partial enlarged view of

[0024] Figure 9 is a partial side view of the winch main body;

[0025] Figure 10 is a partial structural schematic diagram of the positioning oil cylinder;

[0026] Figure 11 is Figure 10 a partially enlarged view;

[0027] Figure 12 is a schematic diagram of the local structure at the propulsion oil cylinder. Specific implementation manner:

[0028] In an embodiment, as shown in Figures 1 to 12 A mobile rock drilling jumbo, including a hull 1000, two horizontally corresponding guide rails 10 are fixed on the top surface of the hull 1000. Above the two horizontally guide rails 10, there are two main horizontal frames 20. On the rear top surface of each main horizontal frame 20, a winch body 40 is fixed. On the front top surface of the main horizontal frame 20, two guide seats 21 are fixed. In the middle of each guide seat 21, a guide wheel 22 is movably connected through a bearing;

[0029] On the top surface of the main horizontal frame 20 in front of each guide wheel 22, a connecting seat is fixed. The two connecting seats are movably connected through a hinge shaft to two upward extending main support arms 23. The tops of the two main support arms 23 are fixed to the same upper connecting seat. On the upper connecting seat, two upper guide wheels 24 are movably connected through a hinge shaft. At the rear of the upper connecting seat, two diagonal support arms 25 are movably connected through a hinge shaft. At the bottoms of the two diagonal support arms 25, two lower moving seats 26 are movably connected through a hinge shaft. On the left and right bottom surfaces of the bottom plates of the two lower moving seats 26, side support frames 261 are fixed. Positioning through holes are formed on the side support frames 261. In the middle of two front and rear extending connecting support beams 27 on the left and right of the main horizontal frame 20, a plurality of left and right extending connecting positioning tubes 271 are provided. The left and right ends of the connecting positioning tubes 271 extend out of the left and right side walls of the corresponding connecting support beams 27. The positioning through holes correspond to the corresponding connecting positioning tubes 271. The bottom surface of the lower moving seat 26 is pressed against the top surface of the corresponding connecting support beam 27. The side support frame 261 is located on the left or right side of the connecting support beam 27. On the outer side wall of one side of the side support frame 261, a positioning oil cylinder 28 is installed. The positioning column 281 fixed to the end of the push rod of the positioning oil cylinder 28 is inserted into the corresponding positioning through hole and corresponds to the middle through hole of the corresponding connecting positioning tube 271.

[0030] Furthermore, a plurality of horizontal connecting rods 1 are fixed between the two main support arms 23. The two ends of the horizontal connecting rods 1 are fixed on the opposite wall surfaces of the two main support arms 23. The connection firmness between the two main support arms 23 is improved through the horizontal connecting rods 1.

[0031] Furthermore, a guiding sleeve portion 262 is fixed on the outer side wall of the corresponding side support frame 261. A positioning oil cylinder 28 is fixedly connected to the flange on the outer end face of the guiding sleeve portion 262 by bolts. A positioning column 281 is fixed to the end of the push rod of the positioning oil cylinder 28. The positioning column 281 is inserted into the corresponding guiding sleeve portion 262. The end of the positioning column 281 is inserted into the corresponding positioning through hole. The outer side wall of the positioning column 281 is close to the inner side wall of the corresponding guiding sleeve portion 262.

[0032] Furthermore, a polytetrafluoroethylene plate 2 is fixed to the bottom surface of the lower moving seat 26. The bottom surface of the polytetrafluoroethylene plate 2 is pressed against the top surface of the corresponding connecting support beam 27. The polytetrafluoroethylene plate 2 can improve the sliding effect of the lower moving seat 26 along the top surface of the corresponding connecting support beam 27.

[0033] Furthermore, an oil cylinder connecting seat 50 is fixed to the middle of the front part of the main transverse frame 20. The middle of the pushing oil cylinder 51 is installed on the oil cylinder connecting seat 50. The rear end of the push rod of the pushing oil cylinder 51 is movably connected to the front part of the lower moving seat 26 through a hinge shaft.

[0034] The pushing oil cylinder 51 is an oil cylinder equipped with an internal displacement sensor (it can also be equipped with an external displacement sensor for the oil cylinder). An internal displacement sensor for the oil cylinder is installed inside its cylinder body. This is a product that can be directly purchased on the market. Its function is to sense the distance that the push rod of the pushing oil cylinder 51 extends, so as to always know the accurate position where the moving seat 26 moves to, ensure the subsequent pushing of the push rod of the positioning oil cylinder 28, and enable the positioning column 281 to be inserted into the corresponding connecting positioning pipe 271 to achieve fixed positioning.

[0035] When the above structure is in use, the push rod of the pushing oil cylinder 51 can be retracted, and then, through the pushing of the push rod of the pushing oil cylinder 51, the lower moving seat 26 is moved backward, thereby changing the inclination angles of the main support arm 23 and the diagonal support arm 25, making the upper guide wheel 24 on it lean backward, making the hammer head 100 on the steel wire rope wound around it lean backward, changing its front and rear positions. At the same time, when the lower moving seat 26 reaches the corresponding position, the internal displacement sensor for the oil cylinder senses its moving position and transmits it to the control host through an electric connection wire (signal wire). The control host controls the control valve of the corresponding hydraulic system to operate, so that the push rod of the connected positioning oil cylinder 28 is pushed, and the positioning column 281 can be inserted into the corresponding connecting positioning pipe 271 to achieve fixed positioning.

[0036] Furthermore, moving frames 30 are fixed to the front and rear parts of the left and right sides of the bottom of the main transverse frame 20. The front and rear side support parts of the moving frame 30 are located at the front and rear parts of the corresponding transverse guide rails 10. Guide wheels 31 are movably connected to the inner side walls of the lower parts of the two side support parts of the moving frame 30 through bearings. The guide wheels 31 are inserted into the left-right extending guide grooves formed in the front or rear part of the corresponding transverse guide rail 10, and the bottom surface of the guide wheel 31 is pressed against the bottom surface of the corresponding guide groove.

[0037] A plurality of side connection seats 11 corresponding to each other in the front and rear directions are fixed to the middle part of the top surface of the transverse guide rail 10. Both ends of a plurality of roller shafts 12 are fixed to the side connection seats 11 corresponding to each other in the front and rear directions. A transmission sprocket 32 is provided between the upper parts of the two side support parts of the moving frame 30. Both ends of the rotating shaft 33 fixed to the center of the transmission sprocket 32 are movably connected to the two side support parts through bearings. The tooth grooves formed on the outer side wall of the transmission sprocket 32 are matched with the roller shafts 12.

[0038] A reduction motor 14 is fixed to the outer side wall of one side of a side connection seat 11 of the moving frame 30, and the reduction motor 14 drives the corresponding rotating shaft 33 to rotate.

[0039] One end of the rotating shaft 33 extends out of the outer side wall of the side connection seat 11 and is inserted into the input hole of the reduction motor 14 and connected to the input gear inside it.

[0040] When the above structure is in use, the two reduction motors 14 can be operated to make the transmission sprocket 32 rotate, so that its tooth grooves are gradually inserted into the corresponding roller shafts 12 and move from the original roller shafts 12 to the subsequent roller shafts 12 to achieve movement, thereby realizing the left-right movement of the main transverse frame 20, changing the position where rock drilling is required. Its moving position is convenient, the moving position is accurate, and the effect is good.

[0041] Furthermore, the two steel wire ropes wound on the drum of the winch main body 40 are vertically downward along the corresponding guide wheels 22 and upper guide wheels 24 and are respectively fixed with a hammer head 100. The hammer head 100 is in front of the main transverse frame 2.

[0042] The winch main body 40 includes a winch frame fixed to the top surface of the rear part of the main transverse frame 20. A driving motor, a reduction box, and a drum are fixed to the top surface of the winch frame. The output shaft of the driving motor is connected to the input shaft of the reduction box through a coupling to drive the reduction box to operate. A driving gear is fixed to the output shaft of the reduction box. The driving gear meshes with the outer tooth part of the connecting gear disc 600 installed at one side of the drum to drive the connecting gear disc 600 to rotate. The middle part of the drum is movably connected with a main rotating shaft 60. Both ends of the main rotating shaft 60 extend out of both ends of the drum. Both ends of the main rotating shaft 60 are movably connected to the support seats fixed to the left and right parts of the top surface of the winch frame through bearings.

[0043] On the left side of the left end plate of the reel, a connecting gear disc 600 is provided. The connecting gear disc 600 is fixed on the main rotating shaft 60. On the outer side edge of the right side wall of the right end plate of the reel, an annular body 70 is fixedly provided. The right part of the main rotating shaft 60 is located in the annular body 70, and an expansion device 80 is fixed thereon. The outer side wall of the arc-shaped expansion part 81 of the expansion device 80 is matched with the inner side wall of the annular body 70.

[0044] An anti-slip layer 82 is fixed on the outer side wall of the arc-shaped expansion part 81, and the outer side wall of the anti-slip layer 82 is pressed against the inner side wall of the annular body 70.

[0045] Furthermore, the expansion device 80 includes a long-shaped fixing plate 83 fixed on the right part of the main rotating shaft 60. On the upper part of the front side wall and the lower part of the rear side wall of the long-shaped fixing plate 83, first connecting seats 84 are both fixed. A pressing cylinder 85 is movably connected to the first connecting seat 84 through a hinge shaft. The end of the push rod of the pressing cylinder 85 is movably connected to one end of a tensioning arm 86 through a hinge shaft. The rear part of the front tensioning arm 86 is movably connected to the lower part of the long-shaped fixing plate 83 through a hinge shaft, and the front part of the rear tensioning arm 86 is movably connected to the upper part of the long-shaped fixing plate 83 through a hinge shaft. Adjusting shafts 87 are installed at the rear end of the front tensioning arm 86 and the front end of the rear tensioning arm 86. Adjusting screws 88 arranged radially are installed on the adjusting shafts 87. The rear connecting part of the lower adjusting screw 88 and the front connecting part of the upper adjusting screw 88 are both movably connected to one end of the corresponding arc-shaped expansion part 81 through a hinge shaft. The other end of the arc-shaped expansion part 81 is movably connected to the upper end or the lower end of the long-shaped fixing plate 83 through a hinge shaft.

[0046] At the rear side of the upper end of the long-shaped fixing plate 83, an end extending part extending upward is formed. At the front side of the lower end of the long-shaped fixing plate 83, an end extending part extending downward is formed. The upper part of the rear arc-shaped expansion part 81 is movably connected to the end extending part at the upper end of the long-shaped fixing plate 83 through a hinge shaft, and the lower part of the rear arc-shaped expansion part 81 is movably connected to the rear end of the lower adjusting screw 88 through a hinge shaft;

[0047] The lower part of the front arc-shaped expansion part 81 is movably connected to the end extending part at the lower end of the long-shaped fixing plate 83 through a hinge shaft, and the upper part of the front arc-shaped expansion part 81 is movably connected to the front end of the upper adjusting screw 88 through a hinge shaft.

[0048] Connecting sleeve bodies 41 are provided inside the left end and the right end of the middle cylinder body of the reel. The outer side wall of the connecting sleeve body 41 and the inner side wall of the middle cylinder body are fixedly welded through connecting plates; A middle partition plate is fixedly welded on the middle outer side wall of the middle cylinder body of the reel. This setting can separate two steel wire ropes when they are wound around the middle cylinder body through the middle partition plate.

[0049] The main rotating shaft 60 is inserted into two connecting sleeve bodies 41 and is movably connected to the connecting sleeve bodies 41 through bearings.

[0050] A radially through hole extending forward and backward is formed at the end of the adjusting shaft 87. The middle part of the adjusting screw 88 is inserted into the radially through hole. Both ends of the adjusting screw 88 extend out of both ends of the radially through hole and are screwed with adjusting nuts 881.

[0051] Two mutually pressing adjusting nuts 881 are screwed at the rear end of the upper adjusting screw 88. The front end of the front adjusting nut 881 presses against the rear side wall of the adjusting shaft 87. One adjusting nut 881 and a spacer sleeve are sleeved on the front part of the upper adjusting screw 88. The spacer sleeve is clamped between the corresponding adjusting nut 881 and the front end face of the adjusting screw 88. The rear end of the upper adjusting screw 88 is close to the front side wall of the extending part at the upper end of the elongated fixing plate 83. The front end of the lower adjusting screw 88 is close to the rear side wall of the extending part at the lower end of the elongated fixing plate 83.

[0052] The adjusting nuts 881 and the spacer sleeves installed on the lower adjusting screw 88 are installed in the opposite way to those on the upper adjusting screw 88.

[0053] By rotating the corresponding adjusting nut 881, the distance that the adjusting screw 88 extends out of the front and rear ends of the adjusting shaft 87 can be changed, so as to change the connection distance between the corresponding tensioning arm 86 and the arc-shaped expansion part 81.

[0054] The connecting air pipes of the two pressing cylinders 85 in this embodiment are inserted or clamped on the inner side wall of the central axial through hole of the main rotating shaft 60. A rotary joint is connected to the outer end of the central axial through hole of the rotating shaft 60. Thus, gas can be introduced into the two pressing cylinders 85 through the air pipe connected to the rotary joint to realize operations such as the push rods of the two pressing cylinders 85 pushing. It is a conventional structure and will not be elaborated here.

[0055] When this embodiment is in use, when the steel wire rope wound on the drum makes a free fall movement along with the hammer head connected to its end, the push rods of the two pressing cylinders 85 retract, so that the two arc-shaped expansion parts 81 retract, and the outer side wall of the anti-slip layer 82 does not press against the inner side wall of the annular body 70. At this time, the drum rotates automatically along with the output of the steel wire rope.

[0056] When it is necessary to wind the steel wire rope back, through the push of the push rods of the two pressing cylinders 85, the two arc-shaped expansion parts 81 expand outwards. At this time, the outer side wall of the anti-slip layer 82 presses against the inner side wall of the annular body 70 to achieve connection. At this time, by rotating the main rotating shaft 60, the annular body 70 will be driven to rotate, and then the drum will be driven to rotate, so as to wind the steel wire rope and realize winding.

[0057] In this embodiment, the hammer head 100 can move left and right and back and forth, changing the position of the hammer head 100 to meet the need for changing the rock drilling position, and its adjustment accuracy is high.

[0058] The specific operation process of this embodiment is as follows: Two main transverse frames 20 move along the transverse guide rail 10. Under the action of the hoist main body 40, the hammer head 100 continuously lifts and then freely falls for rock drilling according to the control host (all electrical components in this embodiment are electrically connected to the control host through electrical connection lines and are controlled by the control host. Before starting, parameters such as rock drilling width, depth, rock drilling speed, rock drilling times, and rock drilling elevation are input into the system to facilitate its automatic operation). When the rock drilling depth reaches the set elevation, the underwater rock drilling jumbo continues to move forward to the next rock drilling point and repeats the lifting and free-falling for rock drilling. This is repeated. When all the rock drilling within a working amplitude is completed, the underwater rock drilling jumbo automatically changes its amplitude. After the amplitude change, the underwater rock drilling jumbo drills rocks in the reverse direction along the track and repeats the rock drilling work. When all the rock drilling work within a berth is completed, the anchor is lifted, the hull 1000 moves to the next berth to drop the anchor, and the rock drilling work continues.

[0059] Finally, it should be pointed out that the above embodiments are only relatively representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and can have many variations. Any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention shall be considered to fall within the protection scope of the present invention.

Claims

1. A mobile rock drilling jumbo, comprising a hull (1000), on the top surface of the hull (1000), two horizontally corresponding guide rails (10) are fixed front and back, and it is characterized in that: Above the two transverse guide rails (10), there is a main transverse frame (20). On the rear top surface of the main transverse frame (20), a winch body (40) is fixed. On the top surface of the front part of the main transverse frame (20), two guide seats (21) are fixed. In the middle of each guide seat (21), a guide wheel (22) is movably connected through a bearing. On the top surface of the main transverse frame (20) in front of each guide wheel (22), a connecting seat is fixed. The two connecting seats are movably connected through a hinge shaft to two main support arms (23) extending upward. At the top of the two main support arms (23), the same upper connecting seat is fixed. On the upper connecting seat, two upper guide wheels (24) are movably connected through a hinge shaft. At the rear of the upper connecting seat, two diagonal support arms (25) are movably connected through a hinge shaft. At the bottom of the two diagonal support arms (25), two lower moving seats (26) are movably connected through a hinge shaft. On the left and right bottom surfaces of the bottom plates of the two lower moving seats (26), side support frames (261) are fixed. Positioning through holes are formed on the side support frames (261). In the middle of two front-back extending connecting support beams (27) on the left and right parts of the main transverse frame (20), a plurality of left-right extending connecting positioning tubes (271) are provided. The left and right ends of the connecting positioning tubes (271) extend out of the left and right side walls of the corresponding connecting support beams (27). The positioning through holes correspond to the corresponding connecting positioning tubes (271). The bottom surface of the lower moving seat (26) is pressed against the top surface of the corresponding connecting support beam (27). The side support frames (261) are located on the left or right side of the connecting support beam (27). On the outer side wall of one of the side support frames (261), a positioning oil cylinder (28) is installed. The positioning column (281) fixed at the end of the push rod of the positioning oil cylinder (28) is inserted into the corresponding positioning through hole and corresponds to the middle through hole of the corresponding connecting positioning tube (271). Two steel wire ropes wound around the drum on the winch body (40) are vertically downward along the corresponding guide wheels (22) and upper guide wheels (24) and respectively fixed with a hammer head (100). The hammer head (100) is in front of the main transverse frame (20).

2. The mobile rock drilling jumbo according to claim 1, characterized in that: A plurality of transverse connecting rods (1) are fixed between the two main support arms (23). The two ends of the transverse connecting rods (1) are fixed on the opposite wall surfaces of the two main support arms (23).

3. A mobile rock drilling jumbo according to claim 1, characterized in that: On the outer side wall of the corresponding one of the side support frames (261), a guide sleeve part (262) is fixed. On the flange of the outer end surface of the guide sleeve part (262), a positioning oil cylinder (28) is fixedly connected through bolts. The positioning column (281) fixed at the end of the push rod of the positioning oil cylinder (28) is inserted into the corresponding guide sleeve part (262). The end of the positioning column (281) is inserted into the corresponding positioning through hole. The outer side wall of the positioning column (281) is close to the inner side wall of the corresponding guide sleeve part (262).

4. A mobile rock drilling jumbo according to claim 1, characterized in that: A polytetrafluoroethylene plate (2) is fixed on the bottom surface of the lower moving seat (26). The bottom surface of the polytetrafluoroethylene plate (2) is pressed against the top surface of the corresponding connecting support beam (27).

5. A mobile rock drilling jumbo according to claim 1, characterized in that: In the middle of the front part of the main transverse frame (20), an oil cylinder connecting seat (50) is fixed. The middle part of the pushing oil cylinder (51) is installed on the oil cylinder connecting seat (50). The rear end of the push rod of the pushing oil cylinder (51) is movably connected to the front part of the lower moving seat (26) through a hinge shaft.

6. The mobile rock drilling jumbo according to claim 5, wherein: The pushing oil cylinder (51) is an oil cylinder equipped with an internal displacement sensor.

7. A mobile rock drilling jumbo according to claim 5, characterized in that: At the front and rear parts of the left and right sides of the bottom of the main transverse frame (20), moving frames (30) are fixed. The front and rear side support parts of the moving frame (30) are located at the front and rear parts of the corresponding transverse guide rails (10). Guide wheels (31) are movably connected to the inner side walls of the lower parts of the two side support parts of the moving frame (30) through bearings. The guide wheels (31) are inserted into the left and right extending guide grooves formed in the front or rear part of the corresponding transverse guide rail (10). The bottom surface of the guide wheel (31) presses against the bottom surface of the corresponding guide groove. In the middle of the top surface of the transverse guide rail (10), a plurality of front and rear corresponding side connecting seats (11) are fixed. Both ends of a plurality of rollers (12) are fixed on the front and rear corresponding side connecting seats (11). A transmission sprocket (32) is arranged between the upper parts of the two side support parts of the moving frame (30). Both ends of the rotating shaft (33) fixed at the center of the transmission sprocket (32) are movably connected to the two side support parts through bearings. The tooth grooves formed on the outer side wall of the transmission sprocket (32) are matched with the rollers (12). A reduction motor (14) is fixed on the outer side wall of one side of a side connecting seat (11) of the moving frame (30). The reduction motor (14) drives the corresponding rotating shaft (33) to rotate.

8. A mobile rock drilling jumbo according to claim 7, characterized in that: One end of the rotating shaft (33) extends out of the outer side wall of the side connecting seat (11) and is inserted into the input hole of the reduction motor (14) and connected to the input gear inside it.

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