Crawler-type rotary drilling rig chassis

Abstract

The invention relates to the technical field of chassis, and discloses a crawler-type rotary drilling rig chassis which comprises a rotary drilling rig chassis right beam and a rotary drilling rig chassis left beam, and driving wheel mounting positions are arranged at one end of the rotary drilling rig chassis right beam and one end of the rotary drilling rig chassis left beam. Guide wheel mounting positions are arranged at the other ends of the rotary digging drill chassis right beam and the rotary digging drill chassis left beam; hydraulic motor mounting shaft holes for mounting hydraulic motors are formed in the surfaces of the driving wheel mounting positions; and the rotary drilling rig chassis center bracket is arranged between the rotary drilling rig chassis right beam and the rotary drilling rig chassis left beam. In the actual use process, under the non-working condition, the left telescopic beam and the right telescopic beam are contracted to the shortest state, the size of the chassis is reduced, vehicle migration and transportation are facilitated, the transportation cost is reduced, the transportation time is shortened, meanwhile, under the working condition, the left telescopic beam and the right telescopic beam stretch out, the vehicle ground contact area is increased, and the operation stability and the equipment stability are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of chassis, and particularly to a crawler type rotary drilling rig chassis. Background Art

[0002] As an important construction machinery, rotary drilling rigs are widely used in fields such as building foundation construction and bridge construction. Its traveling system and chassis structure directly affect the mobility and operation stability of the equipment. Currently, most of the rotary drilling rig chassis on the market adopt a fixed structure. Although it meets the operation requirements to a certain extent, in the non-working state, due to its large volume, the fixed chassis is inconvenient for migration and transportation, increasing the transportation cost and time. In addition, under complex terrain conditions, the contact area of the fixed chassis with the ground is limited, making it difficult to ensure the stability of the equipment and posing a safety hazard.

[0003] In the prior art, to solve the problems of the rotary drilling rig chassis in terms of migration and transportation and operation stability, the following several solutions are usually adopted: one is to adopt a detachable chassis structure, that is, disassembling the chassis into several parts for transportation in the non-working state. Although the transportation volume is reduced, the disassembly and assembly processes are cumbersome, increasing the operation difficulty and time cost; the second is to adopt a hydraulic support leg structure, adjusting the height and angle of the chassis through hydraulic cylinders to increase the contact area with the ground and improve the operation stability. However, this structure is complex, with high maintenance costs, and still needs to be disassembled and assembled during frequent migrations, which is inconvenient to operate; the third is to adopt a crawler type traveling system, adapting to complex terrains through the flexible contact of the crawlers with the ground. However, the traditional crawler type chassis still has the problem of large volume in the non-working state, making it inconvenient for migration and transportation.

[0004] Therefore, the present invention provides a crawler type rotary drilling rig chassis. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0006] The present invention provides a crawler type rotary drilling rig chassis, including: The right beam and left beam of the rotary drilling rig chassis. One end of each of the right beam and left beam of the rotary drilling rig chassis is provided with a driving wheel installation position, and the other end of each of the right beam and left beam of the rotary drilling rig chassis is provided with a guide wheel installation position. A hydraulic motor installation shaft hole for installing a hydraulic motor is provided on the surface of the driving wheel installation position. Four groups of carrier roller installation positions are provided on the upper surface of each of the right beam and left beam of the rotary drilling rig chassis, and twenty-four groups of track roller installation positions are provided on the lower surface of each of the right beam and left beam of the rotary drilling rig chassis; The central support of the rotary drilling rig chassis is arranged in the middle of the right beam and the left beam of the rotary drilling rig chassis. The central support of the rotary drilling rig chassis is of a frame structure. On both sides of the central support of the rotary drilling rig chassis, two right telescopic beams and two left telescopic beams are symmetrically and slidably arranged respectively. The two right telescopic beams and the two left telescopic beams are all slidably arranged inside the central support of the rotary drilling rig chassis. Hydraulic rods are arranged on the surfaces of both sides of the central support of the rotary drilling rig chassis.

[0007] By adopting the above technical solution, in the non-working condition, the left telescopic beam and the right telescopic beam are retracted to the shortest state, reducing the volume of the chassis, facilitating the migration and transportation of the vehicle, reducing the transportation cost and time. At the same time, in the working condition, the left telescopic beam and the right telescopic beam are extended, increasing the ground contact area of the vehicle, improving the operation stability and the stability of the equipment, and improving the operation safety.

[0008] Preferably, the right telescopic beam and the two left telescopic beams are all of a hollow structure. The right telescopic beam is slidably sleeved on the surface of the left telescopic beam. One end of the right telescopic beam far away from the central support of the rotary drilling rig chassis is fixedly connected to the surface of the right beam of the rotary drilling rig chassis. One end of the left telescopic beam far away from the central support of the rotary drilling rig chassis is fixedly connected to the surface of the left beam of the rotary drilling rig chassis.

[0009] By adopting the above technical solution, the left telescopic beam can slide inside the right telescopic beam, effectively reducing the overall volume of the chassis after contraction, facilitating mobile transportation.

[0010] Preferably, installation grooves are formed on the surfaces of both sides of the central support of the rotary drilling rig chassis. The bases of the two hydraulic rods are fixedly installed inside the installation grooves through bolts. The telescopic ends of the two hydraulic rods are fixedly connected to the surfaces of the right beam and the left beam of the rotary drilling rig chassis through flange plates respectively.

[0011] By adopting the above technical solution, the automatic telescoping of the right telescopic beam and the left telescopic beam can be realized under the action of the two hydraulic rods.

[0012] Preferably, a chassis center support slewing flange for connecting with the underframe of the rotary drilling rig is arranged on the central surface of the central support of the rotary drilling rig chassis. A fixing component for fixing the underframe of the rotary drilling rig is arranged inside the chassis center support slewing flange.

[0013] By adopting the above technical solution, the underframe of the rotary drilling rig can be stably connected to the chassis center support slewing flange under the action of the fixing component.

[0014] Preferably, the fixing component includes a plurality of positioning holes formed in a circumferential array on the rotary flange of the central support of the chassis and the surface of the base frame of the rotary drilling rig, and locking bolts inserted into the inner walls of the positioning holes, and locking nuts are threadedly connected to the surfaces of the locking bolts.

[0015] By adopting the above technical solution, the base frame of the rotary drilling rig and the rotary flange of the central support of the chassis can be quickly fixed under the action of a plurality of locking bolts and locking nuts.

[0016] Preferably, a plugging ring is fixedly arranged on the lower surface of the base frame of the rotary drilling rig, and a connecting disc is fixedly arranged on the inner wall of the rotary flange of the central support of the chassis. An annular plugging groove adapted to the plugging ring is formed on the upper surface of the connecting disc. An annular cavity is formed inside the connecting disc, and four rectangular cylinders are fixedly arranged on the inner wall of the annular cavity in a circumferential array. A locking column is slidably arranged inside the rectangular cylinder. A rectangular hole extending to the inside of the annular plugging groove for the locking column to slide is formed at the end of the rectangular cylinder. A locking hole penetrating through the plugging ring and adapted to the locking column is formed on the inner wall of the plugging ring, and a locking groove adapted to the locking column is formed on the inner wall of the annular plugging groove. Two symmetrical limiting blocks are fixedly arranged at the end of the locking column, and limiting openings for the two limiting blocks to slide are respectively formed on the inner top wall and the inner bottom wall of the rectangular cylinder.

[0017] By adopting the above technical solution, under the action of the locking column, the locking column can pass through the locking hole on the plugging ring and be inserted into the locking groove on the inner wall of the annular plugging groove, so as to effectively fix the plugging ring and the connecting disc, and further improve the stability of the base frame of the rotary drilling rig and the rotary flange of the central support of the chassis after installation.

[0018] Preferably, a transverse threaded column extending to the outer surface of the rectangular cylinder is rotatably arranged on the inner wall of the rectangular cylinder, and a cylindrical cavity corresponding to the transverse threaded column is formed at the end of the locking column. A transverse internal threaded sleeve threadedly connected to the outer surface of the transverse threaded column is fixedly arranged on the inner wall of the cylindrical cavity. A driving motor is fixedly arranged on the inner bottom wall of the rotary flange of the central support of the chassis, and a vertical threaded column is fixedly arranged at the output end of the driving motor. The top end of the vertical threaded column extends into the annular cavity and is fixedly provided with a driving bevel gear, and driven bevel gears meshing with the driving bevel gear are fixedly arranged at the ends of the four transverse threaded columns.

[0019] By adopting the above technical solution, the rotation of the driving motor can drive the driving bevel gear to rotate, the rotation of the driving bevel gear can drive the four driven bevel gears to rotate, so as to drive the four transverse threaded columns to rotate simultaneously. During the rotation of the transverse threaded column, the locking column can be automatically telescoped under the action of the transverse internal threaded sleeve.

[0020] Preferably, the fixing component further includes a hollow sliding ring slidably disposed on the outer surface of the rotary flange of the central support of the chassis. A rotating shaft corresponding to the locking bolt is rotatably disposed on the upper surface of the hollow sliding ring, and an internal thread sleeve corresponding to the locking bolt is fixedly provided at the top end of the rotating shaft. The bottom end of the rotating shaft extends into the interior of the hollow sliding ring, and a toothed disc is fixedly provided on the surface of each of the plurality of rotating shafts. An internal toothed ring is fixedly provided on the inner wall of the hollow sliding ring, and each of the plurality of toothed discs meshes with the internal toothed ring.

[0021] By adopting the above technical solution, the rotation of one rotating shaft can drive the rotation of one toothed disc, the rotation of one toothed disc can drive the rotation of the internal toothed ring, and the rotation of the internal toothed ring can drive the rotation of other toothed discs, so as to achieve the purpose of driving the simultaneous rotation of other rotating shafts by the rotation of one rotating shaft.

[0022] Preferably, a lifting disc is slidably disposed on the inner wall of the rotary flange of the central support of the chassis, and a through hole is formed on the upper surface of the lifting disc. A vertical internal thread sleeve threadedly connected to the outer surface of the vertical threaded column is fixedly provided on the inner wall of the through hole. Six strip-shaped openings are circumferentially and arrayedly formed on the outer surface of the rotary flange of the central support of the chassis, and an L-shaped plate is slidably disposed on the inner wall of each of the five strip-shaped openings. Two ends of the L-shaped plate are respectively fixedly connected to the surfaces of the lifting disc and the hollow sliding ring.

[0023] By adopting the above technical solution, the rotation of the vertical threaded column can drive the lifting disc to automatically lift under the action of the vertical internal thread sleeve.

[0024] Preferably, a connecting frame is fixedly provided on the lower surface of the hollow sliding ring, and the bottom end of one of the rotating shafts extends into the interior of the connecting frame. A horizontal shaft extending to the outer surface of the connecting frame is rotatably disposed on the inner wall of the connecting frame. Bevel gears meshing with each other are fixedly provided at one end of the horizontal shaft and on the surface of the rotating shaft. The other end of the horizontal shaft extends into one of the strip-shaped openings and is fixedly provided with a rotating gear, and a straight rack meshing with the rotating gear is fixedly provided on the inner wall of one of the strip-shaped openings.

[0025] By adopting the above technical solution, it is possible to drive the rotating gear to rotate under the action of the straight rack during the upward movement of the hollow sliding ring, and drive the automatic rotation of one rotating shaft under the action of the bevel gear.

[0026] The beneficial effects of the present invention are as follows: During the actual use of the crawler type rotary drilling rig chassis of the present invention, in the non-working condition, the left telescopic beam and the right telescopic beam are retracted to the shortest state, reducing the volume of the chassis, facilitating the migration and transportation of the vehicle, reducing the transportation cost and time. At the same time, in the working condition, the left telescopic beam and the right telescopic beam are extended, increasing the vehicle's contact area with the ground, improving the operation stability and the stability of the equipment, and improving the operation safety.

[0027] A crawler rotary drilling rig chassis according to the present invention, by providing a fixing component, when installing the rotary drilling rig, the insertion ring on the underframe of the rotary drilling rig can be inserted into the annular insertion groove on the inner connecting disc of the rotary flange of the central support of the chassis, and at the same time, the locking column can pass through the locking hole on the insertion ring and be inserted into the locking groove on the inner wall of the annular insertion groove, realizing effective locking and fixing of the insertion ring, and thus effectively ensuring the stability after the connection between the underframe of the rotary drilling rig and the rotary flange of the central support of the chassis.

[0028] A crawler rotary drilling rig chassis according to the present invention, by providing an internal thread sleeve, during the rotation of the vertical thread post, the internal thread sleeve can be screwed onto the outer surface of the locking bolt, thereby achieving the purpose of effectively braking the locking bolt, and at the same time, protecting the outer surface of the locking bolt to avoid rust, and further improving the stability after the connection between the underframe of the rotary drilling rig and the rotary flange of the central support of the chassis. Brief Description of the Drawings

[0029] Figure 1 is a three-dimensional structural schematic diagram of Embodiment 1 of the present invention; Figure 2 is a top-view structural schematic diagram of Embodiment 1 of the present invention; Figure 3 is a side-view structural schematic diagram of Embodiment 1 of the present invention; Figure 4 is a three-dimensional structural schematic diagram after the right telescopic beam and the left telescopic beam in Embodiment 1 of the present invention are retracted; Figure 5 is a three-dimensional structural schematic diagram of Embodiment 2 of the present invention; Figure 6 is a sectional structural schematic diagram of the rotary flange of the central support of the chassis in Embodiment 2 of the present invention; Figure 7 is the present invention Figure 6 magnified structural schematic diagram at position A; Figure 8 is the present invention Figure 6 magnified structural schematic diagram at position B.

[0030] Description of the Reference Numerals: 100, right beam of the rotary drilling rig chassis; 200, left beam of the rotary drilling rig chassis; 300, driving wheel installation position; 400, guide wheel installation position; 500, hydraulic motor installation shaft hole; 600, carrier roller installation position; 700, idler wheel installation position; 800, central support of the rotary drilling rig chassis; 801, right telescopic beam; 802, left telescopic beam; 803, hydraulic rod; 804, rotary flange of the central support of the chassis; 900, Fixed component; 901, Locking bolt; 902, Locking nut; 903, Insertion ring; 904, Connection plate; 905, Annular insertion groove; 906, Rectangular cylinder; 907, Locking column; 908, Locking hole; 909, Locking groove; 9010, Limiting block; 9011, Transverse threaded column; 9012, Transverse internal threaded sleeve; 9013, Driving motor; 9014, Vertical threaded column; 9015, Active bevel gear; 9016, Driven bevel gear; 9017, Hollow sliding ring; 9018, Rotating shaft; 9019, Internal threaded sleeve; 9020, Tooth disc; 9021, Internal tooth ring; 9022, Lifting plate; 9023, Vertical internal threaded sleeve; 9024, L-shaped plate; 9025, Connection frame; 9026, Horizontal shaft; 9027, Bevel gear; 9028, Rotating gear; 9029, Straight rack; 1000, Rotary drilling rig chassis. Specific embodiments

[0031] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein, and the functions and arrangements of the elements discussed can be changed without departing from the scope of protection of the content of this specification. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described relative to some examples can also be combined in other examples.

[0032] Embodiment 1 The technical solution of the present invention will be further elaborated in detail below in conjunction with the accompanying drawings of the specification and specific embodiments. Please refer to Figures 1 to 4 A crawler-type rotary drilling rig chassis provided by this application. Please pay special attention to Figure 1 、 Figure 2 and Figure 3, including: the right beam 100 of the rotary drilling rig chassis and the left beam 200 of the rotary drilling rig chassis. One end of both the right beam 100 of the rotary drilling rig chassis and the left beam 200 of the rotary drilling rig chassis is provided with a driving wheel mounting position 300, and the other end of both the right beam 100 of the rotary drilling rig chassis and the left beam 200 of the rotary drilling rig chassis is provided with a guide wheel mounting position 400. The surface of the driving wheel mounting position 300 is provided with a hydraulic motor mounting shaft hole 500 for installing a hydraulic motor. Four groups of carrier roller mounting positions 600 are provided on the upper surfaces of both the right beam 100 of the rotary drilling rig chassis and the left beam 200 of the rotary drilling rig chassis, and twenty-four groups of track roller mounting positions 700 are provided on the lower surfaces of both the right beam 100 of the rotary drilling rig chassis and the left beam 200 of the rotary drilling rig chassis; the center support 800 of the rotary drilling rig chassis is arranged in the middle of the right beam 100 of the rotary drilling rig chassis and the left beam 200 of the rotary drilling rig chassis, and the center support 800 of the rotary drilling rig chassis is of a frame structure. Two right telescopic beams 801 and two left telescopic beams 802 are symmetrically and slidably arranged on both sides of the center support 800 of the rotary drilling rig chassis respectively. The two right telescopic beams 801 and the two left telescopic beams 802 are all slidably arranged inside the center support 800 of the rotary drilling rig chassis, and hydraulic rods 803 are arranged on the surfaces of both sides of the center support 800 of the rotary drilling rig chassis.

[0033] Specifically, in the non-working condition, the left telescopic beam 802 and the right telescopic beam 801 are retracted to the shortest state, reducing the volume of the chassis, facilitating the vehicle migration and transportation, reducing the transportation cost and time. At the same time, in the working condition, the left telescopic beam 802 and the right telescopic beam 801 are extended, increasing the vehicle's ground contact area, improving the operation stability and the equipment's firmness, and enhancing the operation safety.

[0034] Please refer specifically to Figure 1 and Figure 2 , both the right telescopic beam 801 and the two left telescopic beams 802 are of hollow structures, and the right telescopic beam 801 is slidably sleeved on the surface of the left telescopic beam 802. One end of the right telescopic beam 801 far from the center support 800 of the rotary drilling rig chassis is fixedly connected to the surface of the right beam 100 of the rotary drilling rig chassis, and one end of the left telescopic beam 802 far from the center support 800 of the rotary drilling rig chassis is fixedly connected to the surface of the left beam 200 of the rotary drilling rig chassis.

[0035] Specifically, it can make the left telescopic beam 802 slide inside the right telescopic beam 801, effectively reducing the overall volume of the chassis after contraction, facilitating the mobile transportation.

[0036] Please refer specifically to Figure 2 , mounting grooves are provided on the surfaces of both sides of the center support 800 of the rotary drilling rig chassis. The bases of the two hydraulic rods 803 are fixedly installed inside the mounting grooves through bolts, and the telescopic ends of the two hydraulic rods 803 are fixedly connected to the surfaces of the right beam 100 of the rotary drilling rig chassis and the left beam 200 of the rotary drilling rig chassis respectively through flange plates.

[0037] Specifically, it can realize the automatic telescoping of the right telescopic beam 801 and the left telescopic beam 802 under the action of two hydraulic rods 803.

[0038] Embodiment 2 On the basis of Embodiment 1, referring to Figures 5 to 8 , and different from Embodiment 1: Please refer specifically to Figure 5 , a chassis center support slewing flange 804 for connecting with the rotary drilling rig chassis 1000 is arranged on the central surface of the chassis center support 800 of the rotary drilling rig. A fixing assembly 900 for fixing the rotary drilling rig chassis 1000 is arranged inside the chassis center support slewing flange 804.

[0039] Specifically, it can facilitate the stable connection of the rotary drilling rig chassis 1000 and the chassis center support slewing flange 804 under the action of the fixing assembly 900.

[0040] Please refer specifically to Figure 5 and Figure 6 , the fixing assembly 900 includes a plurality of positioning holes formed in a circumferential array on the surfaces of the chassis center support slewing flange 804 and the rotary drilling rig chassis 1000, and locking bolts 901 inserted into the inner walls of the positioning holes. A locking nut 902 is threadedly connected to the surface of the locking bolt 901.

[0041] Specifically, it can quickly fix the rotary drilling rig chassis 1000 and the chassis center support slewing flange 804 under the action of a plurality of locking bolts 901 and locking nuts 902.

[0042] Please refer specifically to Figure 6 and Figure 7 , a plugging ring 903 is fixedly arranged on the lower surface of the rotary drilling rig chassis 1000, and a connecting disk 904 is fixedly arranged on the inner wall of the chassis center support slewing flange 804. An annular plugging groove 905 adapted to the plugging ring 903 is formed on the upper surface of the connecting disk 904. An annular cavity is formed inside the connecting disk 904. Four rectangular cylinders 906 are fixedly arranged on the inner wall of the annular cavity in a circumferential array. A locking column 907 is slidably arranged inside the rectangular cylinder 906. A rectangular hole extending into the annular plugging groove 905 for the locking column 907 to slide is formed at the end of the rectangular cylinder 906. A locking hole 908 penetrating the plugging ring 903 and adapted to the locking column 907 is formed on the inner wall of the plugging ring 903. A locking groove 909 adapted to the locking column 907 is formed on the inner wall of the annular plugging groove 905. Two symmetrical limiting blocks 9010 are fixedly arranged at the end of the locking column 907. Limiting openings for the two limiting blocks 9010 to slide are respectively formed on the inner top wall and the inner bottom wall of the rectangular cylinder 906.

[0043] Specifically, under the action of the locking column 907, the locking column 907 can pass through the locking hole 908 on the plugging ring 903 and insert into the locking groove 909 on the inner wall of the annular plugging groove 905, so as to effectively fix the plugging ring 903 and the connecting plate 904, and further improve the stability after the installation of the undercarriage 1000 of the rotary drilling rig and the rotary flange 804 of the chassis center support.

[0044] Please refer specifically to Figure 6 and Figure 7 , a transverse threaded column 9011 extending to the outer surface of the rectangular cylinder 906 is rotatably arranged on the inner wall of the rectangular cylinder 906, and a cylindrical cavity corresponding to the transverse threaded column 9011 is formed at the end of the locking column 907. A transverse internal threaded sleeve 9012 threadedly connected to the outer surface of the transverse threaded column 9011 is fixedly arranged on the inner wall of the cylindrical cavity. A driving motor 9013 is fixedly arranged on the inner bottom wall of the rotary flange 804 of the chassis center support, and a vertical threaded column 9014 is fixedly arranged at the output end of the driving motor 9013. The top end of the vertical threaded column 9014 extends into the interior of the annular cavity and is fixedly provided with a driving bevel gear 9015, and driven bevel gears 9016 meshing with the driving bevel gear 9015 are fixedly arranged at the ends of the four transverse threaded columns 9011.

[0045] Specifically, the rotation of the driving motor 9013 can drive the driving bevel gear 9015 to rotate, the rotation of the driving bevel gear 9015 can drive the four driven bevel gears 9016 to rotate, so as to drive the four transverse threaded columns 9011 to rotate simultaneously. During the rotation of the transverse threaded column 9011, the locking column 907 can be driven to automatically expand and contract under the action of the transverse internal threaded sleeve 9012.

[0046] Among them, in the present invention, by setting the fixing component 900, when installing the rotary drilling rig, the chassis 1000 of the rotary drilling rig can be aligned with the rotary flange 804 of the chassis center support first, and locked and fixed by the locking bolt 901 and the locking nut 902. At the same time, when the chassis 1000 of the rotary drilling rig is aligned with the rotary flange 804 of the chassis center support, the insertion ring 903 on the chassis 1000 of the rotary drilling rig can be inserted into the annular insertion groove 905 on the inner connection disk 904 of the rotary flange 804 of the chassis center support, and the driving motor 9013 is started. The rotation of the driving motor 9013 drives the vertical threaded column 9014 to rotate. The rotation of the vertical threaded column 9014 drives the driving bevel gear 9015 to rotate. The rotation of the driving bevel gear 9015 drives the four driven bevel gears 9016 to rotate, thereby driving the four horizontal threaded columns 9011 to rotate simultaneously. The rotation of the horizontal threaded column 9011 drives the locking column 907 to extend outwards under the action of the horizontal internal thread sleeve 9012, so that the locking column 907 passes through the locking hole 908 on the insertion ring 903 and is inserted into the locking groove 909 on the inner wall of the annular insertion groove 905, realizing the effective locking and fixing of the insertion ring 903, and effectively ensuring the stability after the chassis 1000 of the rotary drilling rig is connected to the rotary flange 804 of the chassis center support.

[0047] Please refer particularly to Figure 6 and Figure 8 The fixing component 900 further includes a hollow sliding ring 9017 slidably arranged on the outer surface of the rotary flange 804 of the chassis center support. A rotating shaft 9018 corresponding to the locking bolt 901 is rotatably arranged on the upper surface of the hollow sliding ring 9017, and an internal thread sleeve 9019 corresponding to the locking bolt 901 is fixedly arranged at the top end of the rotating shaft 9018. The bottom end of the rotating shaft 9018 extends into the interior of the hollow sliding ring 9017, and a toothed disk 9020 is fixedly arranged on the surface of several rotating shafts 9018. An internal toothed ring 9021 is fixedly arranged on the inner wall of the hollow sliding ring 9017, and several toothed disks 9020 are meshed with the internal toothed ring 9021.

[0048] Specifically, the rotation of one rotating shaft 9018 can drive one toothed disk 9020 to rotate. The rotation of one toothed disk 9020 can drive the internal toothed ring 9021 to rotate. The rotation of the internal toothed ring 9021 can drive other toothed disks 9020 to rotate, so as to achieve the purpose of driving other rotating shafts 9018 to rotate simultaneously by the rotation of one rotating shaft 9018.

[0049] Please refer particularly to Figure 6 and Figure 8, a lifting disc 9022 is slidably arranged on the inner wall of the rotary flange 804 of the chassis center support, and through holes are formed on the upper surface of the lifting disc 9022. A vertical internal thread sleeve 9023 threadedly connected to the outer surface of the vertical threaded column 9014 is fixedly arranged on the inner wall of the through hole. Six strip-shaped openings are formed in a circumferential array on the outer surface of the rotary flange 804 of the chassis center support, and L-shaped plates 9024 are slidably arranged on the inner walls of five strip-shaped openings. Two ends of each L-shaped plate 9024 are fixedly connected to the surfaces of the lifting disc 9022 and the hollow sliding ring 9017 respectively.

[0050] Specifically, the rotation of the vertical threaded column 9014 can drive the lifting disc 9022 to automatically lift under the action of the vertical internal thread sleeve 9023.

[0051] Please refer specifically to Figure 6 and Figure 8 , a connecting frame 9025 is fixedly arranged on the lower surface of the hollow sliding ring 9017, and the bottom end of a rotating shaft 9018 extends into the interior of the connecting frame 9025. A horizontal shaft 9026 extending to the outer surface of the connecting frame 9025 is rotatably arranged on the inner wall of the connecting frame 9025. Bevel gears 9027 meshing with each other are fixedly arranged on one end of the horizontal shaft 9026 and the surface of the rotating shaft 9018 respectively. The other end of the horizontal shaft 9026 extends into the interior of a strip-shaped opening and is fixedly provided with a rotating gear 9028. A straight rack 9029 meshing with the rotating gear 9028 is fixedly arranged on the inner wall of a strip-shaped opening.

[0052] Specifically, during the upward movement of the hollow sliding ring 9017, the rotating gear 9028 can be driven to rotate under the action of the straight rack 9029, and the rotating shaft 9018 can be driven to automatically rotate under the action of the bevel gear 9027.

[0053] Among them, in the present invention, by providing the internal thread sleeve 9019, during the rotation of the vertical thread post 9014, the lifting disc 9022 can be driven to move upward, and the hollow sliding ring 9017 can be automatically driven to move upward by five L-shaped plates 9024. During the upward movement of the hollow sliding ring 9017, the rotating gear 9028 can be driven to move upward, and under the action of the straight rack 9029, the rotating gear 9028 is driven to rotate. The rotation of the rotating gear 9028 drives the horizontal shaft 9026 to rotate. The rotation of the horizontal shaft 9026 drives a rotating shaft 9018 to rotate under the action of two bevel gears 9027. The rotation of a rotating shaft 9018 drives a toothed disc 9020 to rotate. The rotation of a toothed disc 9020 drives the internal toothed ring 9021 to rotate. The rotation of the internal toothed ring 9021 drives other toothed discs 9020 and rotating shafts 9018 to rotate, so as to achieve the purpose of driving a number of rotating shafts 9018 to rotate simultaneously, and further drive a number of internal thread sleeves 9019 to automatically rotate synchronously. During the upward movement and rotation of the internal thread sleeve 9019, the internal thread sleeve 9019 can be screwed onto the outer surface of the locking bolt 901, so as to achieve the purpose of effectively braking the locking bolt 901, and at the same time, the outer surface of the locking bolt 901 can be protected to avoid rust, and further improve the stability after the connection between the underframe 1000 of the rotary drilling rig and the rotary flange 804 of the chassis center support.

[0054] Working principle: In the non-operating condition, the left telescopic beam 802 and the right telescopic beam 801 are retracted to the shortest state, reducing the volume of the chassis, facilitating the migration and transportation of the vehicle, reducing the transportation cost and time. At the same time, in the operating condition, the left telescopic beam 802 and the right telescopic beam 801 extend, increasing the ground contact area of the vehicle, improving the operation stability and the stability of the equipment, and enhancing the operation safety. Moreover, when installing the rotary drilling rig, the underframe 1000 of the rotary drilling rig can be aligned with the rotary flange 804 of the chassis center support first, and locked and fixed through the locking bolt 901 and the locking nut 902. Meanwhile, when the underframe 1000 of the rotary drilling rig is aligned with the rotary flange 804 of the chassis center support, the insertion ring 903 on the underframe 1000 of the rotary drilling rig can be inserted into the annular insertion groove 905 on the inner connection plate 904 of the rotary flange 804 of the chassis center support, and the drive motor 9013 is started. The rotation of the drive motor 9013 drives the vertical threaded column 9014 to rotate. The rotation of the vertical threaded column 9014 drives the active bevel gear 9015 to rotate. The rotation of the active bevel gear 9015 drives the four driven bevel gears 9016 to rotate, thereby driving the four horizontal threaded columns 9011 to rotate simultaneously. The rotation of the horizontal threaded column 9011 drives the locking column 907 to extend outwards under the action of the horizontal internal thread sleeve 9012, so that the locking column 907 passes through the locking hole 908 on the insertion ring 903 and is inserted into the locking groove 909 on the inner wall of the annular insertion groove 905, realizing the effective locking and fixing of the insertion ring 903, and effectively ensuring the stability after the connection between the underframe 1000 of the rotary drilling rig and the rotary flange 804 of the chassis center support. At the same time, during the rotation of the vertical threaded column 9014, the lifting plate 9022 can be driven to move upwards, and the hollow sliding ring 9017 is automatically driven to move upwards through the five L-shaped plates 9024. During the upward movement of the hollow sliding ring 9017, the rotating gear 9028 can be driven to move upwards, and the rotating gear 9028 is driven to rotate under the action of the straight rack 9029. The rotation of the rotating gear 9028 drives the horizontal shaft 9026 to rotate. The rotation of the horizontal shaft 9026 drives a rotating shaft 9018 to rotate under the action of the two bevel gears 9027. The rotation of a rotating shaft 9018 drives a toothed disc 9020 to rotate. The rotation of a toothed disc 9020 drives the internal toothed ring 9021 to rotate. The rotation of the internal toothed ring 9021 drives the other toothed discs 9020 and the rotating shafts 9018 to rotate, so as to drive a plurality of rotating shafts 9018 to rotate simultaneously, and further drive a plurality of internal thread sleeves 9019 to rotate automatically and synchronously. During the upward movement and rotation of the internal thread sleeve 9019, the internal thread sleeve 9019 can be screwed onto the outer surface of the locking bolt 901, thereby realizing the purpose of effectively braking the locking bolt 901, and at the same time protecting the outer surface of the locking bolt 901 to avoid rust, and further improving the stability after the connection between the underframe 1000 of the rotary drilling rig and the rotary flange 804 of the chassis center support.

[0055] The above-described embodiments of the specific implementation manners have been described, but the present embodiments are not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative rather than restrictive. Under the inspiration of the present embodiments, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of the present embodiments.

Claims

1. A crawler type rotary drilling rig chassis, characterized in that, Including: The right beam (100) of the rotary drilling rig chassis and the left beam (200) of the rotary drilling rig chassis. One end of the right beam (100) and the left beam (200) of the rotary drilling rig chassis are both provided with drive wheel mounting positions (300), and the other ends of the right beam (100) and the left beam (200) of the rotary drilling rig chassis are both provided with guide wheel mounting positions (400). The surface of the drive wheel mounting position (300) is provided with a hydraulic motor mounting shaft hole (500) for installing a hydraulic motor. The upper surfaces of the right beam (100) and the left beam (200) of the rotary drilling rig chassis are both provided with four groups of carrier roller mounting positions (600), and the lower surfaces of the right beam (100) and the left beam (200) of the rotary drilling rig chassis are both provided with twenty-four groups of track roller mounting positions (700); The center support (800) of the rotary drilling rig chassis. The center support (800) of the rotary drilling rig chassis is arranged in the middle of the right beam (100) and the left beam (200) of the rotary drilling rig chassis. The center support (800) of the rotary drilling rig chassis is of a frame structure. Two right telescopic beams (801) and two left telescopic beams (802) are symmetrically and slidably arranged on both sides of the center support (800) of the rotary drilling rig chassis respectively. The two right telescopic beams (801) and the two left telescopic beams (802) are all slidably arranged inside the center support (800) of the rotary drilling rig chassis. Hydraulic rods (803) are arranged on the surfaces of both sides of the center support (800) of the rotary drilling rig chassis.

2. The crawler type rotary drilling rig chassis according to claim 1, characterized in that, The right telescopic beam (801) and the two left telescopic beams (802) are both of a hollow structure. The right telescopic beam (801) is slidably sleeved on the surface of the left telescopic beam (802). One end of the right telescopic beam (801) far from the center support (800) of the rotary drilling rig chassis is fixedly connected to the surface of the right beam (100) of the rotary drilling rig chassis, and one end of the left telescopic beam (802) far from the center support (800) of the rotary drilling rig chassis is fixedly connected to the surface of the left beam (200) of the rotary drilling rig chassis.

3. A crawler type rotary drilling rig chassis according to claim 1, characterized in that, Mounting grooves are arranged on the surfaces of both sides of the center support (800) of the rotary drilling rig chassis. The bases of the two hydraulic rods (803) are fixedly installed inside the mounting grooves through bolts, and the telescopic ends of the two hydraulic rods (803) are fixedly connected to the surfaces of the right beam (100) and the left beam (200) of the rotary drilling rig chassis through flange plates.

4. A crawler type rotary drilling rig chassis according to claim 1, characterized in that, A chassis center support slewing flange (804) for connecting with the underframe (1000) of the rotary drilling rig is arranged on the central surface of the center support (800) of the rotary drilling rig chassis. A fixing component (900) for fixing the underframe (1000) of the rotary drilling rig is arranged inside the chassis center support slewing flange (804).

5. A crawler type rotary drilling rig chassis according to claim 4, characterized in that, The fixing component (900) includes a plurality of positioning holes arranged in a circumferential array on the surfaces of the chassis center support slewing flange (804) and the underframe (1000) of the rotary drilling rig, and locking bolts (901) inserted into the inner walls of the positioning holes. A locking nut (902) is threadedly connected to the surface of the locking bolt (901).

6. The crawler type rotary drilling rig chassis according to claim 5, wherein, The lower surface of the underframe (1000) of the rotary drilling rig is fixedly provided with a plug-in ring (903), and the inner wall of the rotary flange (804) of the central support of the chassis is fixedly provided with a connecting plate (904). The upper surface of the connecting plate (904) is provided with an annular plug-in groove (905) adapted to the plug-in ring (903). An annular cavity is provided inside the connecting plate (904), and four rectangular cylinders (906) are fixedly arranged on the inner wall of the annular cavity in a circumferential array. A locking column (907) is slidably arranged on the inner wall of the rectangular cylinder (906). A rectangular hole extending to the inside of the annular plug-in groove (905) for the sliding of the locking column (907) is provided at the end of the rectangular cylinder (906). A locking hole (908) penetrating through the plug-in ring (903) and adapted to the locking column (907) is provided on the inner wall of the plug-in ring (903), and a locking groove (909) adapted to the locking column (907) is provided on the inner wall of the annular plug-in groove (905). Two symmetric limiting blocks (9010) are fixedly arranged at the end of the locking column (907), and limiting openings for the sliding of the two limiting blocks (9010) are respectively provided on the inner top wall and the inner bottom wall of the rectangular cylinder (906).

7. A crawler type rotary drilling rig chassis according to claim 6, characterized in that, A transverse threaded column (9011) extending to the outer surface of the rectangular cylinder (906) is rotatably arranged on the inner wall of the rectangular cylinder (906). A cylindrical cavity corresponding to the transverse threaded column (9011) is provided at the end of the locking column (907). A transverse internal threaded sleeve (9012) threadedly connected to the outer surface of the transverse threaded column (9011) is fixedly arranged on the inner wall of the cylindrical cavity. A driving motor (9013) is fixedly arranged on the inner bottom wall of the rotary flange (804) of the central support of the chassis, and a vertical threaded column (9014) is fixedly arranged at the output end of the driving motor (9013). The top end of the vertical threaded column (9014) extends into the annular cavity and is fixedly provided with a driving bevel gear (9015), and driven bevel gears (9016) meshing with the driving bevel gear (9015) are fixedly arranged at the ends of the four transverse threaded columns (9011).

8. A crawler type rotary drilling rig chassis according to claim 7, characterized in that, The fixing component (900) further includes a hollow sliding ring (9017) slidably arranged on the outer surface of the rotary flange (804) of the central support of the chassis. A rotating shaft (9018) corresponding to the locking bolt (901) is rotatably arranged on the upper surface of the hollow sliding ring (9017), and an internal threaded sleeve (9019) corresponding to the locking bolt (901) is fixedly arranged at the top end of the rotating shaft (9018). The bottom end of the rotating shaft (9018) extends into the hollow sliding ring (9017), and tooth discs (9020) are fixedly arranged on the surfaces of several rotating shafts (9018). An internal tooth ring (9021) is fixedly arranged on the inner wall of the hollow sliding ring (9017), and several tooth discs (9020) are meshed with the internal tooth ring (9021).

9. The undercarriage of a crawler type rotary drilling rig according to claim 8, characterized in that, A lifting disc (9022) is slidably arranged on the inner wall of the rotary flange (804) of the chassis center support, and through holes are formed in the upper surface of the lifting disc (9022). A vertical internal thread sleeve (9023) threadedly connected to the outer surface of the vertical threaded column (9014) is fixedly arranged on the inner wall of the through hole. Six strip-shaped openings are formed in a circumferential array on the outer surface of the rotary flange (804) of the chassis center support, and L-shaped plates (9024) are slidably arranged on the inner walls of five of the strip-shaped openings. Two ends of each L-shaped plate (9024) are fixedly connected to the surfaces of the lifting disc (9022) and the hollow sliding ring (9017) respectively.

10. A crawler type rotary drilling rig chassis according to claim 9, characterized in that, A connecting frame (9025) is fixedly arranged on the lower surface of the hollow sliding ring (9017), and the bottom end of one rotating shaft (9018) extends into the interior of the connecting frame (9025). A horizontal shaft (9026) extending to the outer surface of the connecting frame (9025) is rotatably arranged on the inner wall of the connecting frame (9025). Bevel gears (9027) meshing with each other are fixedly arranged on one end of the horizontal shaft (9026) and the surface of the rotating shaft (9018). The other end of the horizontal shaft (9026) extends into the interior of a strip-shaped opening and is fixedly provided with a rotating gear (9028). A straight rack (9029) meshing with the rotating gear (9028) is fixedly arranged on the inner wall of a strip-shaped opening.

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