A hydraulic rod storage integrated with a mobile drilling rig chassis

Abstract

The present invention discloses a hydraulic rod storage bin integrated with a mobile drill rig chassis, which relates to the technical field of geological drilling equipment. It includes a drill pipe rack, a rod support mechanism assembly, a drill pipe lifting mechanism assembly, a storage bin swing oil cylinder, drill pipe spacer pads, and a drill pipe bottom plate. The rod support mechanism assemblies are installed on both sides of the drill pipe rack. Two groups of drill pipe lifting mechanism assemblies are installed on both sides of the drill pipe rack. The storage bin swing oil cylinder is rotatably installed on the drill pipe lifting mechanism assembly. A number of pairs of drill pipe spacer pads are arranged on the drill pipe rack. The drill pipe bottom plate is connected to the drill pipe lifting mechanism assembly. By driving the swing of the storage bin and using the rolling of the drill pipes themselves, automatic discharge is achieved, with a simple structure and reliable operation. The movement mechanisms of the storage bin are driven by hydraulic cylinders, and automatic operation can be realized through simple electro-hydraulic control. It can be used in combination with a pipe moving and swinging device to achieve mechanized and automated addition and removal of drill pipes, reduce the labor intensity of on-site personnel, and improve construction safety.

Description

Technical Field

[0001] The present invention relates to the technical field of geological drilling equipment, and particularly to a hydraulic rod storage bin integrated with a mobile drilling rig chassis. Background Art

[0002] During the drilling construction process, drill pipes are essential components. In the traditional geological drilling construction process, drill pipes are usually stored on a drill pipe rack composed of brackets placed on the ground. During the process of adding or removing drill pipes during construction, the drill pipes are reciprocally transported and discharged manually between the wellhead and the drill pipe rack. Manual operation of drill pipes is labor-intensive, inefficient, and poses significant safety hazards. The manual operation method is also not suitable for the modern development goal of geological drilling equipment in the new era.

[0003] The drill pipe handling system can achieve mechanized and automated addition and removal of drill pipes, which can greatly reduce the working intensity of operators, improve construction safety, shorten the tripping time, and improve the drilling production efficiency. The drill pipe handling system generally includes a pipe moving and swinging device, a drill pipe storage and discharge device, etc. Drill pipe handling systems at home and abroad are generally applied in the oil drilling field, with drill pipes stored and discharged vertically. However, in the geological drilling field, drill pipes are mostly stored and discharged horizontally. Currently, there are relatively few corresponding drill pipe handling systems, and most of them are used in supporting geological core-medium depth drilling rigs. The overall layout form is mostly that the drill pipe handling system is independent of the drilling rig as a whole or the pipe moving and swinging device is installed on the drilling rig mast, and the drill pipe storage and discharge device is relatively independent of the drilling rig.

[0004] Mobile drilling rigs loaded by vehicle chassis or crawler chassis are widely used in medium-shallow hole construction in geological drilling. However, the existing structural forms of geological drilling drill pipe handling systems are not applicable to mobile drilling rigs that emphasize the convenience and speed of relocation and transportation. Using a drill pipe handling system supporting a mobile drilling rig can achieve large-capacity storage and automatic discharge of drill pipes, and an automatic drill pipe storage and discharge device integrated with the mobile drilling rig chassis is currently blank, which restricts the development of geological drilling automation. Summary of the Invention

[0005] The purpose of the present invention is to provide a hydraulic rod storage bin integrated with a mobile drilling rig chassis. Through large-capacity storage and automatic discharge of drill pipes, and an automatic drill pipe storage and discharge device integrated with the mobile drilling rig chassis, this device can be used in cooperation with the pipe moving and swinging device to achieve mechanized and automated addition and removal of drill pipes, which is beneficial to improving the automation degree of geological drilling rigs, reducing the working intensity of operators, shortening the tripping time, improving the drilling production efficiency, and improving the safety of geological drilling construction, thereby solving the problems in the background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A hydraulic drill rod storage integrated with a mobile drill rig chassis, comprising a drill rod rack, a rod supporting mechanism assembly, a drill rod lifting mechanism assembly, a storage swing cylinder, drill rod spacer pads and a drill rod bottom plate. The rod supporting mechanism assemblies are installed on both sides of the drill rod rack and are used to lift the drill rods when adding and removing drill rods. Two groups of drill rod lifting mechanism assemblies are installed on both sides of the drill rod rack. The storage swing cylinder is rotatably installed on the drill rod lifting mechanism assembly. A number of pairs of drill rod spacer pads are arranged on the drill rod rack. A pair of drill rod bottom plates are arranged at the bottom inside the drill rod rack, and the drill rod bottom plates are connected to the drill rod lifting mechanism assembly.

[0008] Further, the drill rod rack includes a bottom frame, columns, upper connecting beams and guiding brackets. Two pairs of columns are arranged on both sides of the bottom frame. The tops of the columns on one side are connected by the upper connecting beam. The rod supporting mechanism assemblies are installed at both ends on one side of the bottom frame, and the rod supporting mechanism assemblies are located inside the columns and the upper connecting beams. The drill rod lifting mechanism assembly is arranged in the hollow position inside the columns. The guiding brackets are fixedly installed on the upper connecting beam on the side close to the rod supporting mechanism assembly. The top of the rod supporting mechanism assembly is slidably matched with the guiding brackets. Right-angle rubber plates are installed vertically along the inner side of the columns. The side baffle plates of the spacer pads are vertically arranged at the bottom of the upper connecting beam and are fixedly installed on the columns. The drill rod spacer pads are placed between the two side baffle plates of the spacer pads. The first hinge support is arranged at the bottom of the bottom frame, and the first hinge support is hinged to the chassis of the mobile drill rig. The second hinge support is fixedly installed on the column, and the storage swing cylinder is rotatably connected to the second hinge support. The end of the storage swing cylinder away from the second hinge support is hinged to the chassis of the mobile drill rig. A pair of drill rod vertical retaining pipes are arranged on the side of the bottom frame close to the guiding brackets, and the drill rod vertical retaining pipes are used to prevent the lower-layer drill rods from rolling during the left-right swing of the storage.

[0009] Further, grooves are provided at the bottom and top of the drill rod spacer pads, and grooves are provided at the top of the drill rod bottom plates.

[0010] Further, the rod supporting mechanism assembly includes a rod supporting oil cylinder and a rod supporting U-shaped groove. The rod supporting oil cylinder is fixedly installed on the bottom frame, and the rod supporting U-shaped groove is installed at the top of the rod supporting oil cylinder. The rod supporting U-shaped groove is used to lift the drill rods, and the rod supporting U-shaped groove is slidably matched with the guiding brackets.

[0011] Furthermore, the drill pipe lifting mechanism assembly includes a drill pipe lifting oil cylinder, a lifting pulley, a guide pulley, a chain, a fixing plate, and an inner slider. The drill pipe lifting oil cylinder is fixedly installed in the hollow position inside the column. At the top of the drill pipe lifting oil cylinder, a coaxially installed lifting pulley and a guide pulley are provided. The guide pulley is placed in the channel steel groove inside the column. One end of the chain is connected to the fixing plate, and the other end of the chain is connected to the inner slider. The fixing plate is fixed to the outside of the column, and the inner slider is located inside the column.

[0012] Furthermore, the inner slider has a convex shape. The protruding part of the inner slider is inserted into the gap between two channel steels on the column, and both ends of the drill pipe bottom plate are connected to the inner slider.

[0013] Furthermore, a synchronous valve is adopted for the drill pipe lifting oil cylinder and the rod supporting oil cylinder.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The hydraulic rod storage bin integrated with the chassis of a mobile drilling rig provided by the present invention drives the rod storage bin to swing and realizes automatic discharge by using the rolling of the drill pipe itself. The structure is simple and the work is reliable. Each moving mechanism of the rod storage bin is driven by a hydraulic cylinder, and automatic operation can be realized through simple electro-hydraulic control. It can be used in combination with a pipe moving and swinging device to realize mechanized and automated addition and removal of drill pipes, reduce the labor intensity of construction site personnel, and improve construction safety. Description of the Drawings

[0016] Figure 1 is the overall schematic diagram of a hydraulic rod storage bin integrated with the chassis of a mobile drilling rig of the present invention;

[0017] Figure 2 is the structural schematic diagram of the rod storage bin of the present invention when no drill pipe is stored;

[0018] Figure 3 is the structural schematic diagram of the rod supporting mechanism assembly of the rod storage bin of the present invention;

[0019] Figure 4 is the structural schematic diagram of the drill pipe lifting mechanism assembly of the rod storage bin of the present invention;

[0020] Figure 5 is the structural schematic diagram of the drill pipe spacer plate of the rod storage bin of the present invention;

[0021] Figure 6 is the structural schematic diagram of the rod storage bin of the present invention when drill pipes are stored.

[0022] In the figure: 1, drill pipe rack; 2, rod supporting mechanism assembly; 3, drill pipe lifting mechanism assembly; 4, storage rod bin swing oil cylinder; 5, drill pipe spacer plate; 6, drill pipe bottom plate; 11, bottom frame; 12, column; 13, upper connecting beam; 14, guiding support; 15, right-angled rubber plate; 16, side baffle of spacer plate; 17, first hinge support; 18, second hinge support; 19, drill pipe vertical retaining pipe; 21, rod supporting oil cylinder; 22, rod supporting U-shaped groove; 31, drill pipe lifting oil cylinder; 32, lifting pulley; 33, guiding wheel; 34, chain; 35, fixing plate; 36, inner slider. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0024] As Figures 1 to 6 shown, a hydraulic storage rod bin integrated with a mobile drill rig chassis includes a drill pipe rack 1, a rod supporting mechanism assembly 2, a drill pipe lifting mechanism assembly 3, a storage rod bin swing oil cylinder 4, a drill pipe spacer plate 5 and a drill pipe bottom plate 6. The rod supporting mechanism assemblies 2 are installed on both sides of the drill pipe rack 1. The rod supporting mechanism assembly 2 is used to lift the drill pipe when adding and removing the drill pipe, and perform the lifting operations of adding and removing the drill pipe as required during drilling construction. Two groups of drill pipe lifting mechanism assemblies 3 are installed on both sides of the drill pipe rack 1. The drill pipe lifting mechanism assembly 3 is used to lift and lower the drill pipe when adding and removing the drill pipe. The storage rod bin swing oil cylinder 4 is rotatably installed on the drill pipe lifting mechanism assembly 3. By the telescopic movement of the storage rod bin swing oil cylinder 4, the drill pipe can be tilted and swung, and the operation process of the drill pipe exiting and entering the warehouse can be realized. A plurality of pairs of drill pipe spacer plates 5 are arranged on the drill pipe rack 1. A pair of drill pipe spacer plates 5 can separate and store the drill pipes in one layer, and can also provide a track for the rolling of the drill pipes. A pair of drill pipe bottom plates 6 are arranged at the inner bottom of the drill pipe rack 1. The drill pipe bottom plate 6 is connected to the drill pipe lifting mechanism assembly 3. By driving the swing and lifting of the drill pipe bottom plate 6 through the drill pipe lifting mechanism assembly 3, the lifting of each layer of drill pipes can be realized.

[0025] As Figure 2 and Figure 6As shown, the drill pipe rack 1 includes a bottom frame 11, columns 12, an upper connecting beam 13 and a guiding support 14. There are two pairs of columns 12 arranged on both sides of the bottom frame 11. The tops of the columns 12 on one side are connected by the upper connecting beam 13. At both ends of one side of the bottom frame 11, a rod supporting mechanism assembly 2 is installed. The rod supporting mechanism assembly 2 is located inside the columns 12 and the upper connecting beam 13. In the hollow position inside the column 12, a drill pipe lifting mechanism assembly 3 is arranged. A guiding support 14 is fixedly installed on the upper connecting beam 13 close to the side of the rod supporting mechanism assembly 2. The top of the rod supporting mechanism assembly 2 is in sliding fit with the guiding support 14, which can keep the rod supporting mechanism assembly 2 and the drill pipe stable during the process of lifting the drill pipe. A right-angle rubber plate 15 is installed vertically along the inner side of the column 12, which can reduce the interference of the drill pipe on the column 12 and reduce the collision of the drill pipe. On the bottom of the upper connecting beam 13, there is a vertically placed partition spacer side baffle 16. The partition spacer side baffle 16 is fixedly installed on the column 12. A drill pipe partition spacer 5 is placed between the two partition spacer side baffles 16 on both sides, which can realize the layering of the storage of the drill pipe. The partition spacer side baffle 16 can limit the free-state drill pipe partition spacer 5 to prevent the drill pipe partition spacer 5 from sliding out between two layers of drill pipes. At the bottom of the bottom frame 11, there is a first hinge support 17. The first hinge support 17 is hinged to the chassis of the mobile drill rig, so as to fix the drill pipe rack 1 on the chassis of the mobile drill rig. The column 12 is fixedly installed with a second hinge support 18. A storage rod library swing oil cylinder 4 is rotatably connected to the second hinge support 18. One end of the storage rod library swing oil cylinder 4 away from the second hinge support 18 is hinged to the chassis of the mobile drill rig. Through the connection of the first hinge support 17 and the storage rod library swing oil cylinder 4 with the chassis of the mobile drill rig, the drill pipe rack 1 can be fixed and has a shock-absorbing effect at the same time. On one side of the bottom frame 11 close to the guiding support 14, there is a pair of drill pipe vertical retaining pipes 19. The drill pipe vertical retaining pipes 19 are used to prevent the lower-layer drill pipes from rolling during the left-right swing of the storage rod library.

[0026] As Figure 4 and Figure 5 shown, grooves are provided at the bottom and top of the drill pipe partition spacer 5. The grooves can limit the rolling of the drill pipe on the drill pipe partition spacer 5. Grooves are provided at the top of the drill pipe bottom plate 6, which can limit the rolling of the bottom-layer drill pipes on the drill pipe bottom plate 6. By restricting the rolling of the drill pipe by the drill pipe partition spacer 5 and the drill pipe bottom plate 6, the stability of the drill pipe during storage is ensured.

[0027] As Figure 3As shown in the figure, the support rod mechanism assembly 2 includes a support rod oil cylinder 21 and a support rod U-shaped groove 22. The support rod oil cylinder 21 is fixedly installed on the bottom frame 11, and the support rod U-shaped groove 22 is installed at the top of the support rod oil cylinder 21. The support rod U-shaped groove 22 is used to lift the drill pipe. The support rod U-shaped groove 22 is slidably matched with the guide bracket 14. By the telescoping of the two support rod oil cylinders 21 on both sides, the drill pipe can be lifted on the bottom frame 11.

[0028] When the support rod mechanism assembly 2 is used during the process of adding or removing drill pipes, it lifts the drill pipe to be operated, facilitating the gripping by the pipe shifting device. The support rod mechanism assemblies 2 are symmetrically installed in pairs on one side of the drill pipe rack 1, and the spacing between them depends on the length of the drill pipe. The support rod U-shaped groove 22 is connected to the piston rod end of the support rod oil cylinder 21. The back plate of the support rod U-shaped groove 22 is placed in the groove of the guide bracket 14. The guide bracket 14 plays a guiding role during the lifting and lowering process of the support rod mechanism assembly 2. The notch diameter of the support rod U-shaped groove 22 is larger than the diameter of the drill pipe.

[0029] As Figure 4 shown in the figure, the drill pipe lifting mechanism assembly 3 includes a drill pipe lifting oil cylinder 31, a lifting pulley 32, a guide pulley 33, a chain 34, a fixing plate 35, and an inner slider 36. The drill pipe lifting oil cylinder 31 is fixedly installed in the hollow position inside the column 12. At the top of the drill pipe lifting oil cylinder 31, a coaxial lifting pulley 32 and a guide pulley 33 are provided. The guide pulley 33 is placed in the channel steel groove inside the column 12 and plays a guiding role during the lifting and lowering process of the drill pipe lifting oil cylinder 31. One end of the chain 34 is connected to the fixing plate 35, and the other end of the chain 34 is connected to the inner slider 36. The fixing plate 35 is fixed to the outside of the column 12, and the inner slider 36 is located inside the column 12. The inner slider 36 is of a convex shape, and the protruding part of the inner slider 36 is inserted into the gap between the two channel steels on the column 12. The inner slider 36 can slide up and down along the column 12 and plays a guiding role during the lifting and lowering process of the drill pipe.

[0030] Both ends of the drill pipe bottom plate 6 are connected to the inner slider 36. By the telescoping of the drill pipe lifting oil cylinder 31, the chain 34 is driven, and then the drill pipe bottom plate 6 is lifted or lowered, thereby realizing the lifting and lowering of the drill pipes on each layer of the drill pipe storage.

[0031] The drill pipe lifting oil cylinder 31 and the support rod oil cylinder 21 adopt a synchronous valve to ensure the synchronism of the movement of the hydraulic cylinders.

[0032] During the drilling construction process, when additional drill pipes are needed, the swing cylinder 4 of the drill pipe storage bin contracts, causing the drill pipe storage bin to swing to the left extreme position. The drill pipes automatically roll to the left side of the drill pipe storage bin. Then, the rod supporting cylinder 21 contracts, and the U-shaped rod supporting groove 22 descends to the lower limit position, which is lower than the first layer of drill pipes. Subsequently, the swing cylinder 4 of the drill pipe storage bin extends, causing the drill pipe storage bin to swing to the right extreme position. The drill pipes automatically roll to the right side of the drill pipe storage bin. Then, the rod supporting cylinder 21 extends. During the rising process of the U-shaped rod supporting groove 22, it lifts the rightmost drill pipe at the top layer, raising it to the upper limit position to facilitate the pipe transfer and swing device to grasp the drill pipes. When the processing of the first layer of drill pipes is completed, manually remove the drill pipe spacer plate 5 at the upper layer. The drill pipe lifting and lowering cylinder 31 extends, driving the drill pipe bottom plate 6 to rise through the chain 34, lifting the lower layer of drill pipes, and repeating the process of adding drill pipes. The drill pipe vertical baffle 19 is used to prevent the lower layer of drill pipes from rolling during the left and right swing of the drill pipe storage bin, so as not to affect the lifting and lowering of the U-shaped rod supporting groove 22. The side baffle of the spacer plate is used to limit the drill pipe spacer plate 5 to prevent the drill pipe spacer plate 5 from slipping during the swing of the drill pipe storage bin. The right-angle rubber plate 15 is installed on the side of the column 12, which can play a buffering role during the rolling of the drill pipes.

[0033] During the drilling construction process, when reducing the number of drill pipes, the U-shaped rod supporting groove 22 is not involved. The rod supporting cylinder 21 contracts to the lower limit position. The swing cylinder 4 of the drill pipe storage bin extends, causing the drill pipe storage bin to swing to the right extreme position. The pipe transfer and swing device moves the drill pipes from the hole opening to an appropriate position above the drill pipe storage bin and then releases the drill pipes. The drill pipes fall on the drill pipe spacer plate 5. When one layer of drill pipes is full, the swing cylinder 4 of the drill pipe storage bin retracts, causing the drill pipe storage bin to swing to the left extreme position. It can be swung several times repeatedly to realize the automatic discharge of the drill pipes in this layer by using the rolling of the drill pipes. Subsequently, the drill pipe lifting and lowering cylinder 31 contracts, driving the drill pipe bottom plate 6 to descend through the chain 34. Manually add the drill pipe spacer plate 5 and repeat the process of reducing the drill pipes.

[0034] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic drill rod storage integrated with a mobile drill rig chassis, comprising a drill rod rack (1), a rod supporting mechanism assembly (2), a drill rod lifting mechanism assembly (3), a storage swing oil cylinder (4), a drill rod spacer plate (5) and a drill rod bottom plate (6), characterized in that: On both sides of the drill pipe rack (1), a rod supporting mechanism assembly (2) is installed. The rod supporting mechanism assembly (2) is used to lift the drill pipe when adding or removing the drill pipe. On both sides of the drill pipe rack (1), two groups of drill pipe lifting mechanism assemblies (3) are installed. A storage rod bin swing oil cylinder (4) is rotatably installed on the drill pipe lifting mechanism assembly (3). A number of pairs of drill pipe spacer pads (5) are arranged on the drill pipe rack (1). A pair of drill pipe bottom plates (6) are arranged at the bottom inside the drill pipe rack (1), and the drill pipe bottom plates (6) are connected to the drill pipe lifting mechanism assembly (3). The drill pipe rack (1) includes a bottom frame (11), columns (12), an upper connecting beam (13), and a guiding bracket (14). On both sides of the bottom frame (11), two pairs of columns (12) are arranged. The tops of the columns (12) on one side are connected by the upper connecting beam (13). At both ends of one side of the bottom frame (11), a rod supporting mechanism assembly (2) is installed. The rod supporting mechanism assembly (2) is located inside the columns (12) and the upper connecting beam (13). The drill pipe lifting mechanism assembly (3) is arranged in the hollow position inside the column (12). A guiding bracket (14) is fixedly installed on the upper connecting beam (13) near the rod supporting mechanism assembly (2). The top of the rod supporting mechanism assembly (2) is slidably matched with the guiding bracket (14). A right-angle rubber plate (15) is installed vertically along the inner side of the column (12). A spacer pad side baffle (16) placed vertically is arranged at the bottom of the upper connecting beam (13). The spacer pad side baffle (16) is fixedly installed on the column (12). The drill pipe spacer pads (5) are placed between the spacer pad side baffles (16) on both sides. A first hinge support (17) is arranged at the bottom of the bottom frame (11). The first hinge support (17) is hinged to the chassis of the mobile drill rig. A second hinge support (18) is fixedly installed on the column (12). The storage rod bin swing oil cylinder (4) is rotatably connected to the second hinge support (18). The end of the storage rod bin swing oil cylinder (4) far from the second hinge support (18) is hinged to the chassis of the mobile drill rig. A pair of drill pipe vertical retaining pipes (19) are arranged on the bottom frame (11) near the guiding bracket (14). The drill pipe vertical retaining pipes (19) are used to prevent the lower drill pipes from rolling during the left-right swing of the storage rod bin.

2. The hydraulic rod storage integrated into the chassis of a mobile drilling rig according to claim 1, characterized in that: Grooves are arranged at the bottom and top of the drill pipe spacer pad (5). Grooves are arranged at the top of the drill pipe bottom plate (6).

3. The hydraulic rod storage integrated with the chassis of a mobile drill rig according to claim 1, characterized in that: The rod supporting mechanism assembly (2) includes a rod supporting oil cylinder (21) and a rod supporting U-shaped groove (22). The rod supporting oil cylinder (21) is fixedly installed on the bottom frame (11). The rod supporting U-shaped groove (22) is installed at the top of the rod supporting oil cylinder (21). The rod supporting U-shaped groove (22) is used to lift the drill pipe. The rod supporting U-shaped groove (22) is slidably matched with the guiding bracket (14).

4. The hydraulic rod storage integrated into the chassis of a mobile drill rig according to claim 1, characterized in that: The drill pipe lifting mechanism assembly (3) includes a drill pipe lifting oil cylinder (31), a lifting pulley (32), a guide pulley (33), a chain (34), a fixing plate (35) and an inner slider (36). The drill pipe lifting oil cylinder (31) is fixedly installed at the hollow position inside the column (12). At the top of the drill pipe lifting oil cylinder (31), a coaxial lifting pulley (32) and a guide pulley (33) are provided. The guide pulley (33) is placed in the channel steel groove inside the column (12). One end of the chain (34) is connected to the fixing plate (35), and the other end of the chain (34) is connected to the inner slider (36). The fixing plate (35) is fixed to the outside of the column (12), and the inner slider (36) is located inside the column (12).

5. The hydraulic rod storage integrated into the mobile drilling rig chassis according to claim 4, characterized in that: The inner slider (36) has a convex-shaped structure. The protruding part of the inner slider (36) is inserted into the gap between two channel steels on the column (12). Both ends of the drill pipe bottom plate (6) are connected to the inner slider (36).

6. The hydraulic rod storage integrated into the chassis of a mobile drill rig according to claim 5, characterized in that: The drill pipe lifting oil cylinder (31) and the rod supporting oil cylinder (21) adopt a synchronous valve.

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