Hybrid power hydraulic drilling rig

Abstract

The invention relates to the technical field of press drilling machines, and discloses a hybrid power hydraulic drilling machine. The hybrid power hydraulic drilling rig comprises a chassis, a power system, a transmission system and an execution system. The power system comprises an engine and a motor power station, the engine is located on the chassis, and the motor power station is located on one side of the chassis; the transmission system is located on the chassis and provided with at least two input ends, one input end is connected with the output end of the engine, and the other input end is connected with the output end of the motor power station. The execution system is located on the chassis, the transmission system is connected with the execution system, and at least one of the engine and the motor power station drives the transmission system to drive the execution system to execute drilling operation. By means of the double power sources, the engine and the motor power station can be standby for each other, so that one driving transmission system in the engine and the motor power station avoids shutdown caused by faults of a traditional single power source, and continuity of drilling operation is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of hydraulic drilling rig technology, and more specifically to a hybrid hydraulic drilling rig. Background Technology

[0002] Currently, most vehicle-mounted hydraulic drilling rigs use diesel engines as their power source, while a small number of rigs are purely electric. This results in a single power mode and limited application areas.

[0003] Existing vehicle-mounted hydraulic drilling rigs have the following disadvantages: 1) Single power mode and poor reliability: The drilling rig has only one power source, either a diesel engine or an electric motor. If a failure occurs, the rig can only be shut down for repair, which poses a risk of drilling rig burying or well collapse and delays the progress of the project.

[0004] 2) Limited scope of use and poor economic efficiency: Drilling rigs powered by diesel engines have lost their competitive advantage due to the high price of diesel fuel and the low price of drilling footage in recent years, resulting in high operating costs. Drilling rigs powered by electric motors have significant energy-saving and environmental protection effects, low noise, and low operating costs, but they cannot be used in remote areas or areas with low power grid load, which limits their scope of use. Summary of the Invention

[0005] In view of this, the present invention provides a hybrid hydraulic drilling rig to solve the problem of poor reliability of drilling rigs in the prior art.

[0006] In a first aspect, the present invention provides a hybrid hydraulic drilling rig. The hybrid hydraulic drilling rig includes a chassis, a power system, a transmission system, and an execution system. The power system includes an engine and an electric motor power station, with the engine located on the chassis and the electric motor power station located on one side of the chassis; the transmission system is located on the chassis and has at least two input terminals, one of which is connected to the output terminal of the engine, and the other input terminal is connected to the output terminal of the electric motor power station; the execution system is located on the chassis, and the transmission system is connected to the execution system, with at least one of the engine and the electric motor power station driving the transmission system to perform drilling operations.

[0007] By integrating the engine onto the chassis and setting up a separate electric motor power station on one side of the chassis, a dual power source is formed, allowing the engine and electric motor power station to serve as backups for each other. Thus, one of the drive transmission systems in the engine and electric motor power station drives the execution system to perform drilling operations, avoiding downtime caused by the failure of a traditional single power source and ensuring the continuity of drilling operations.

[0008] In one alternative embodiment, the transmission system includes: a paralleling box having at least two input terminals and one output terminal; and a transfer case, the output terminal of the paralleling box being connected to the input terminal of the transfer case, the output terminal of the transfer case being used to connect to the actuation system.

[0009] In one optional embodiment, the vehicle box includes: a box body located on a chassis, the box body having an engine input port, a motor input port and an output port, the engine input port being located on the side of the box body facing the engine, the motor input port being located on the side of the box body facing the motor power station, and the output port being disposed opposite to the engine input port.

[0010] In one optional embodiment, the vehicle housing further includes: an engine transmission assembly located within the housing; a motor transmission assembly located within the housing; an output shaft located at an output port; and a shift fork sleeved on the output shaft, the shift fork having a first shift position connected to the engine transmission assembly and a second shift position connected to the motor transmission assembly, the shift fork being operated to switch between the first shift position and the second shift position.

[0011] In one optional embodiment, the engine transmission assembly includes: an engine input shaft located at an engine input port, the engine input shaft extending in a direction parallel to the extension direction of an output shaft; and a first spur gear sleeved on the engine input shaft, wherein when the shift fork is in a first shift position, the shift fork is connected to the first spur gear. In one optional embodiment, the motor drive assembly includes: a motor input shaft located at a motor input port, the extension direction of the motor input shaft being perpendicular to the extension direction of the engine input shaft and / or output shaft; a first bevel gear sleeved on the motor input shaft; a second bevel gear meshing with the first bevel gear; an intermediate shaft, the second bevel gear sleeved on the intermediate shaft, the two ends of the intermediate shaft being connected to a first bearing and a second bearing respectively, the first bearing and the second bearing being located on the side wall of the housing; a second spur gear sleeved on the intermediate shaft; and a third spur gear located on the outer ring of the output shaft, the third spur gear meshing with the second spur gear, and when the shift fork is in the second shift position, the shift fork is connected to the third spur gear.

[0012] In one alternative embodiment, the engine transmission assembly further includes: a third bearing disposed at the engine input port and cooperating with the engine input shaft; a fourth bearing located at the end of the engine input shaft near the first spur gear, the inner ring of the fourth bearing cooperating with the engine input shaft; and a first connecting shaft, one end of which is connected to the outer ring of the fourth bearing, and the other end of which is connected to the inner wall of the housing.

[0013] In one optional embodiment, a fifth bearing is provided at the output port, which cooperates with the output shaft. The motor transmission assembly further includes: a sixth bearing, which is located between the third spur gear and the fifth bearing, and the inner ring of the sixth bearing cooperates with the output shaft; and a second connecting shaft, one end of which is connected to the outer ring of the sixth bearing, and the other end of which is connected to the inner wall of the housing.

[0014] In one alternative implementation, the motor power station includes: a platform located on one side of the chassis; a machine room located on the platform; a motor located in the machine room and connected to an input port of the transmission system via a drive shaft; and a control cabinet electrically connected to the motor.

[0015] In one alternative implementation, the actuation system includes: a hydraulic assembly located on a chassis, with a transfer case connected to the hydraulic assembly; and an actuation component including a drilling component, with the hydraulic assembly connected to the drilling component. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a top view of a partial structure of a hybrid hydraulic drilling rig according to an embodiment of the present invention; Figure 2 This is a front view of the paralleling box of a hybrid hydraulic drilling rig according to an embodiment of the present invention; Figure 3 This is a left view of the paralleling box of a hybrid hydraulic drilling rig according to an embodiment of the present invention; Figure 4 This is a top view of the paralleling box of a hybrid hydraulic drilling rig according to an embodiment of the present invention; Figure 5 This is a transmission principle diagram of the paralleling box of a hybrid hydraulic drilling rig according to an embodiment of the present invention; Figure 6 This is a side view of a hybrid hydraulic drilling rig according to an embodiment of the present invention; Figure 7 This is a front view of a hybrid hydraulic drilling rig according to an embodiment of the present invention; Figure 8 This is a side view of the motor power station of a hybrid hydraulic drilling rig according to an embodiment of the present invention; Figure 9This is a top view of the motor power station of a hybrid hydraulic drilling rig according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 10. Chassis; 20. Power system; 21. Engine; 22. Electric motor power station; 221. Platform; 222. Computer room; 223. Electric motor; 224. Control cabinet; 23. Drive shaft; 30. Transmission system; 31. Combined carriages; 311. Housing; 3111. Engine input port; 3112. Motor input port; 3113. Output port; 312. Engine transmission assembly; 3121. Engine input shaft; 3122. First spur gear; 3123. Third bearing; 3124. Fourth bearing; 3125. First connecting shaft; 313. Motor transmission assembly; 3131. Motor input shaft; 3132. First bevel gear; 3133. Second bevel gear; 3134. Intermediate shaft; 3135. First bearing; 3136. Second bearing; 3137. Second spur gear; 3138. Third spur gear; 31391. Sixth bearing; 31392. Second connecting shaft; 314, Output shaft; 3141, Fifth bearing; 315. Shift fork; 32. Transfer case; 40. Execution system; 41. Hydraulic components; 42. Execution components; 421. Derrick; 422. Power head; 423. Unlatcher; 424. Driller's cabin. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0022] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0023] The following is combined Figures 1 to 9 The following describes embodiments of the present invention.

[0024] According to an embodiment of the present invention, in one aspect, a hybrid hydraulic drilling rig is provided. For example... Figure 1 As shown, the hybrid hydraulic drilling rig includes a chassis 10, a power system 20, a transmission system 30, and an execution system 40.

[0025] The power system 20 includes an engine 21 and an electric motor power station 22. The engine 21 is located on the chassis 10, and the electric motor power station 22 is located on one side of the chassis 10. A transmission system 30 is located on the chassis 10 and has at least two input terminals, one of which is connected to the output terminal of the engine 21, and the other input terminal is connected to the output terminal of the electric motor power station 22. An execution system 40 is located on the chassis 10, and the transmission system 30 is connected to the execution system 40. At least one of the engine 21 and the electric motor power station 22 drives the transmission system 30 to drive the execution system 40 to perform drilling operations.

[0026] In this embodiment, by integrating the engine 21 on the chassis 10 and separately setting the motor power station 22 on one side of the chassis 10, a dual power source is formed, so that the engine 21 and the motor power station 22 can serve as backups for each other. Thus, one of the engine 21 and the motor power station 22 drives the transmission system 30 to drive the execution system 40 to perform drilling operations, avoiding downtime caused by the failure of a traditional single power source, ensuring the continuity of drilling operations, and solving the problem of poor reliability of drilling rigs in the prior art.

[0027] Furthermore, there are no exhaust emissions in the electric motor power mode, and the engine mode can meet the needs of high-power operations. Compared with traditional single-power drilling rigs, it has less impact on the environment.

[0028] In one embodiment, the drive system 30 includes a paralleling housing 31 and a transfer case 32. The paralleling housing 31 is provided with at least two input terminals and one output terminal. The output terminal of the paralleling housing 31 is connected to the input terminal of the transfer case 32, and the output terminal of the transfer case 32 is used to connect to the actuation system 40.

[0029] Specifically, the paralleling box 31 is equipped with at least two input terminals, namely an engine input terminal and a motor input terminal. The engine input terminal is used to connect to the engine 21, and the motor input terminal is used to connect to the motor power station 22. The paralleling box 31 realizes the merging of the two power inputs. The output terminal of the paralleling box 31 is connected to the input terminal of the transfer case 32, so that the power output of the paralleling box 31 is divided by the transfer case 32. A hydraulic pump is installed on the transfer case 32. The hydraulic pump delivers hydraulic oil to the hydraulic cylinder, hydraulic motor and other actuators through hydraulic pipelines, drives the various actuators to move, and realizes the various functions of the drilling rig.

[0030] like Figure 2 , Figure 3 , Figure 4 As shown, the parallel transport box 31 includes a box body 311, which is located on the chassis 10. The box body 311 is provided with an engine input port 3111, a motor input port 3112, and an output port 3113. The engine input port 3111 is located on the side of the box body 311 facing the engine 21, the motor input port 3112 is located on the side of the box body 311 facing the motor power station 22, and the output port 3113 is arranged opposite to the engine input port 3111.

[0031] By setting the output port 3113 opposite to the engine input port 3111, the power transmission direction of the engine 21 extends along the length of the chassis 10 to the output port 3113, while the power transmission direction of the electric motor power station 22 is set at an angle to the direction of the output port 3113, so as to avoid interference between the power output of the engine 21 and the electric motor power station 22.

[0032] The transfer case has two input ports: one for the engine and one for the electric motor, and one power output port that connects to the transfer case. The two power units are switched via a shift lever with two positions: diesel engine operating position and electric motor operating position. A limit switch is installed at the bottom of the shift lever. When the lever is switched to a certain position, the bottom of the lever contacts the limit switch on that side, sending an electrical signal, which is then displayed in the driller's cab. This transfer case uses a T-shaped layout.

[0033] like Figure 5 As shown, the transmission housing 31 also includes an engine transmission assembly 312, a motor transmission assembly 313, an output shaft 314, and a shift fork 315. The engine transmission assembly 312 is located inside the housing 311, the motor transmission assembly 313 is located inside the housing 311, the output shaft 314 is located at the output port 3113, and the shift fork 315 is sleeved on the output shaft 314. The shift fork 315 has a first shift position connected to the engine transmission assembly 312 and a second shift position connected to the motor transmission assembly 313. The shift fork 315 is operated to switch between the first shift position and the second shift position.

[0034] The engine transmission assembly 312 is used to transmit power from the engine input port 3111 to the output port 3113, and the motor transmission assembly 313 is used to transmit power from the motor input port 3112 to the output port 3113. The shift fork 315 can be connected to the engine transmission assembly 312 or the motor transmission assembly 313 according to the actual scenario to achieve the selection and adaptation of the two power sources.

[0035] like Figure 5 As shown, the engine transmission assembly 312 includes an engine input shaft 3121 and a first spur gear 3122. The engine input shaft 3121 is located at the engine input port 3111, and the extension direction of the engine input shaft 3121 is parallel to the extension direction of the output shaft 314. The first spur gear 3122 is sleeved on the engine input shaft 3121, and when the shift fork 315 is in the first shift position, the shift fork 315 is connected to the first spur gear 3122.

[0036] The engine input shaft 3121 is connected to the output end of the engine 21. The first spur gear 3122 meshes with the engine input shaft 3121. When the shift fork 315 is connected to the first spur gear 3122, since the shift fork 315 is sleeved on the output shaft 314, the shift fork 315 converts the rotation of the first spur gear 3122 into the rotation of the outer body of the shift fork 315, thereby driving the output shaft 314 to rotate, so as to realize the power output of the engine 21 as a power source.

[0037] like Figure 5As shown, the motor drive assembly 313 includes: a motor input shaft 3131, located at the motor input port 3112, with its extension direction perpendicular to the extension direction of the engine input shaft 3121 and / or output shaft 314; a first bevel gear 3132, sleeved on the motor input shaft 3131; a second bevel gear 3133, meshing with the first bevel gear 3132; and an intermediate shaft 3134, on which the second bevel gear 3133 is sleeved. The two ends of the intermediate shaft 3134 are connected to the first bearing 3135 and the second bearing 3136 respectively. The first bearing 3135 and the second bearing 3136 are located on the side wall of the housing 311. The second spur gear 3137 is sleeved on the intermediate shaft 3134. The third spur gear 3138 is located on the outer ring of the output shaft 314. The third spur gear 3138 is meshed with the second spur gear 3137. When the shift fork 315 is in the second shift position, the shift fork 315 is connected to the third spur gear 3138.

[0038] Since the extension direction of the motor input shaft 3131 is perpendicular to the extension directions of the engine input shaft 3121 and output shaft 314, a bevel gear assembly is needed to redirect the force of the motor input shaft 3131. By meshing the first bevel gear 3132 with the second bevel gear 3133, the force is redirected to the extension direction of the output shaft 314. The second bevel gear 3133 then drives the intermediate shaft 3134 to rotate, which in turn drives the second spur gear 3137 to rotate. The second spur gear 3137 meshes externally with the third spur gear 3138, enabling the third spur gear 3138 to rotate. The shift fork 315 connects to the third spur gear 3138, causing the third spur gear 3138 to drive the outer body of the shift fork 315 to rotate, further driving the output shaft 314 to rotate. This achieves power output from the motor power station 22 as a power source.

[0039] like Figure 5 As shown, the engine transmission assembly 312 further includes: a third bearing 3123, which is disposed at the engine input port 3111 and cooperates with the engine input shaft 3121; a fourth bearing 3124, which is located at one end of the engine input shaft 3121 near the first spur gear 3122 and whose inner ring cooperates with the engine input shaft 3121; and a first connecting shaft 3125, one end of which is connected to the outer ring of the fourth bearing 3124 and the other end of which is connected to the inner wall of the housing 311.

[0040] The third bearing 3123 supports the engine input shaft 3121, improving the rotational reliability and stability of the engine input shaft 3121. Similarly, the fourth bearing 3124 also supports the engine input shaft 3121, but it acts on the end of the engine input shaft 3121 away from the engine input port 3111.

[0041] like Figure 5 As shown, a fifth bearing 3141 is provided at the output port 3113. The fifth bearing 3141 cooperates with the output shaft 314. The motor transmission assembly 313 also includes: a sixth bearing 31391, which is located between the third spur gear 3138 and the fifth bearing 3141, and the inner ring of the sixth bearing 31391 cooperates with the output shaft 314; and a second connecting shaft 31392, one end of which is connected to the outer ring of the sixth bearing 31391, and the other end of which is connected to the inner wall of the housing 311.

[0042] The fifth bearing 3141 and the sixth bearing 31391 are both used to support the output shaft 314, thereby improving the stability of the power output of the output shaft 314.

[0043] like Figure 7 , Figure 8 , Figure 9 As shown, the motor power station 22 includes: a platform 221 located on one side of the chassis 10; a machine room 222 located on the platform 221; a motor 223 located in the machine room 222, which is connected to an input port of the transmission system 30 via a drive shaft 23; and a control cabinet 224 electrically connected to the motor 223.

[0044] The motor power station 22 consists of a machine room, guardrails, platform, motor, control cabinet and ladder. Platform 221 allows personnel to walk and perform maintenance operations. The machine room 222 is installed on platform 221. The machine room 222 contains motor 223 and control cabinet 224, which can provide effective protection for motors and electrical equipment. Ladders and guardrails are designed to facilitate personnel access and ensure personnel safety.

[0045] like Figure 6 As shown, the execution system 40 includes a hydraulic assembly 41 located on the chassis 10, and a transfer case 32 connected to the hydraulic assembly 41; and an execution assembly 42 including a drilling component, with the hydraulic assembly 41 connected to the drilling component.

[0046] In this embodiment, the drilling rig is equipped with four hydraulic outriggers, two in the middle of the chassis and two at the rear. The middle outriggers are fixed, while the rear outriggers can extend and retract laterally to ensure stability during operation and retract when not in operation to ensure passability. Each hydraulic outrigger can be controlled independently for easy leveling.

[0047] The execution component 42 includes a derrick 421, a power head 422, a shackle 423, and a driller's cabin 424.

[0048] Among them, the derrick 421 is used to suspend heavy objects such as drill pipes and drill tools, and at the same time provides vertical guidance for the up and down movement of drill pipes (drilling / pulling out of the drill), ensuring the vertical accuracy of drilling operations.

[0049] The power head 422 directly drives the drill pipe to rotate, and together with the drilling pressure, it breaks the underground rock formation, making it a key power component for forming a wellbore.

[0050] The 423 uncoupling device replaces manual labor in the installation and removal of threaded joints between drill pipes, improving the efficiency of drill pipe connection and removal and avoiding the safety risks of manual operation.

[0051] From the driller's cabin 424, the operator controls the derrick, power head, and other components via a control panel, while simultaneously monitoring drilling parameters (such as drilling pressure, rotation speed, and well depth) in real time to ensure safe and precise operation.

[0052] This drilling rig has a total width of 2.5 meters and a total height of 4 meters, meeting road regulations and eliminating the need for flatbed trailers for transportation, thus saving on transportation costs. It has a maximum speed of 80 km / h, enabling fast relocation and strong off-road capability, allowing it to quickly reach designated locations, making it ideal for emergency rescue needs.

[0053] This application has the following beneficial effects: 1) The drilling rig combines economy and applicability. When there is grid power at the work site, the use of electric motors is economical and environmentally friendly, and the overall cost is greatly reduced compared to diesel engines. In areas without grid power, diesel engines can be used to ensure the normal operation of the drilling rig, making it widely applicable.

[0054] 2) The safety factor is greatly improved. When one power source fails, another power source can be switched immediately to ensure that the operation is not interrupted.

[0055] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0056] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0057] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A hybrid hydraulic drilling rig, characterized in that, include: Chassis (10); The power system (20) includes an engine (21) and an electric motor power station (22), wherein the engine (21) is located on the chassis (10) and the electric motor power station (22) is located on one side of the chassis (10); The transmission system (30) is located on the chassis (10) and has at least two input terminals, one of which is connected to the output terminal of the engine (21) and the other of which is connected to the output terminal of the motor power station (22). An execution system (40) is located on the chassis (10), and a transmission system (30) is connected to the execution system (40). At least one of the engine (21) and the motor power station (22) drives the transmission system (30) to drive the execution system (40) to perform drilling operations.

2. The hybrid hydraulic drilling rig according to claim 1, characterized in that, The transmission system (30) includes: A vehicle paralleling box (31) is provided with at least two input terminals and one output terminal; Transfer case (32), the output end of the parallel transfer case (31) is connected to the input end of the transfer case (32), and the output end of the transfer case (32) is used to connect to the execution system (40).

3. The hybrid hydraulic drilling rig according to claim 2, characterized in that, The parallel transport box (31) includes: The housing (311) is located on the chassis (10). The housing (311) is provided with an engine input port (3111), a motor input port (3112) and an output port (3113). The engine input port (3111) is located on the side of the housing (311) facing the engine (21). The motor input port (3112) is located on the side of the housing (311) facing the motor power station (22). The output port (3113) is arranged opposite to the engine input port (3111).

4. The hybrid hydraulic drilling rig according to claim 3, characterized in that, The parallel transport box (31) also includes: An engine transmission assembly (312) is located within the housing (311); A motor drive assembly (313) is located inside the housing (311); Output shaft (314), the output shaft (314) is located at the output port (3113); A shift fork (315) is sleeved on the output shaft (314). The shift fork (315) has a first shift position connected to the engine transmission assembly (312) and a second shift position connected to the motor transmission assembly (313). The shift fork (315) is operated to switch between the first shift position and the second shift position.

5. The hybrid hydraulic drilling rig according to claim 4, characterized in that, The engine transmission assembly (312) includes: An engine input shaft (3121) is located at the engine input port (3111), and the extension direction of the engine input shaft (3121) is parallel to the extension direction of the output shaft (314). The first spur gear (3122) is sleeved on the engine input shaft (3121). When the shift fork (315) is in the first shift position, the shift fork (315) is connected to the first spur gear (3122).

6. The hybrid hydraulic drilling rig according to claim 5, characterized in that, The motor drive assembly (313) includes: A motor input shaft (3131) is located at the motor input port (3112), and the extension direction of the motor input shaft (3131) is perpendicular to the extension direction of the engine input shaft (3121) and / or the output shaft (314). The first bevel gear (3132) is sleeved on the motor input shaft (3131); The second bevel gear (3133) meshes with the first bevel gear (3132); An intermediate shaft (3134) is provided, and the second bevel gear (3133) is sleeved on the intermediate shaft (3134). The two ends of the intermediate shaft (3134) are respectively connected to the first bearing (3135) and the second bearing (3136). The first bearing (3135) and the second bearing (3136) are located on the side wall of the housing (311). The second spur gear (3137) is sleeved on the intermediate shaft (3134); The third spur gear (3138) is located on the outer ring of the output shaft (314). The third spur gear (3138) meshes with the second spur gear (3137). When the shift fork (315) is in the second shift position, the shift fork (315) is connected to the third spur gear (3138).

7. The hybrid hydraulic drilling rig according to claim 5, characterized in that, The engine transmission assembly (312) also includes: The third bearing (3123) is disposed at the engine input port (3111) and is engaged with the engine input shaft (3121); A fourth bearing (3124) is located at one end of the engine input shaft (3121) near the first spur gear (3122), and the inner ring of the fourth bearing (3124) is engaged with the engine input shaft (3121). The first connecting shaft (3125) has one end connected to the outer ring of the fourth bearing (3124) and the other end connected to the inner wall of the housing (311).

8. The hybrid hydraulic drilling rig according to claim 6, characterized in that, A fifth bearing (3141) is provided at the output port (3113), the fifth bearing (3141) cooperates with the output shaft (314), and the motor transmission assembly (313) further includes: The sixth bearing (31391) is located between the third spur gear (3138) and the fifth bearing (3141), and the inner ring of the sixth bearing (31391) is engaged with the output shaft (314). The second connecting shaft (31392) has one end connected to the outer ring of the sixth bearing (31391) and the other end connected to the inner wall of the housing (311).

9. The hybrid hydraulic drilling rig according to claim 1, characterized in that, The motor power station (22) includes: Platform (221), which is located on one side of the chassis (10); The computer room (222) is located on the platform (221); An electric motor (223) is located in the machine room (222) and is connected to an input port of the transmission system (30) via a drive shaft (23); The control cabinet (224) is electrically connected to the motor (223).

10. The hybrid hydraulic drilling rig according to claim 2, characterized in that, The execution system (40) includes: A hydraulic assembly (41) is located on the chassis (10), and the transfer case (32) is connected to the hydraulic assembly (41); An execution component (42) includes a drilling component, and a hydraulic component (41) is connected to the drilling component.

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