Drilling machine power head with double hydraulic motors

Abstract

The utility model belongs to the technical field of drilling machine equipment, and particularly relates to a double-hydraulic-motor drilling machine power head which comprises a power box, a first variable displacement motor, a second variable displacement motor and a cycloid motor are arranged on the power box, and the output end of the first variable displacement motor and the output end of the second variable displacement motor are connected with a first driving shaft and a second driving shaft respectively. The first driving shaft and the second driving shaft are both fixedly provided with driving gears, the driving gears are meshed with transmission gears on the transmission shaft, a power gear is arranged on the transmission shaft and located below the transmission gears, the power gear is meshed with an output gear on the main shaft, the output end of the cycloid motor is connected with a gear shifting rotating shaft, and the output end of the cycloid motor is connected with the gear shifting rotating shaft. According to the three-hydraulic-motor two-gear drilling machine power head, the gear mechanism is driven by one cycloid motor and two variable hydraulic motors to rotate, the main shaft is driven by the gear mechanism to rotate, the torque is adjustable, and the three-hydraulic-motor two-gear drilling machine power head is suitable for operation under complex geological conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling equipment, in particular to a double hydraulic motor drilling power head. Background Art

[0002] The power head of a drilling rig is a key component of the drilling rig, which is used to drive the drill bit to drill holes. With the multifunctional configuration of rotary drilling rigs, the requirements for drill rods have become more diversified. Different construction conditions and different methods have different load requirements. The torque of the power head in a single mode cannot meet the multifunctional use requirements. The working nature of the traditional drilling rig power head is single, and the torque is not variable. There are differences in the structure of core drilling rigs and drilling rigs, and one machine cannot be used for multiple purposes. In addition, the power head of a traditional drilling rig can only move up and down, and the labor intensity is high when replacing the drill pipe. Utility Model Content

[0003] In order to overcome the above-mentioned defects in the prior art, the utility model provides a dual hydraulic motor drilling rig power head.

[0004] A dual hydraulic motor drilling rig power head comprises a power box, on which a first variable motor, a second variable motor and a cycloidal motor are provided, the output ends of the first variable motor and the second variable motor are connected to a first drive shaft and a second drive shaft respectively, the first drive shaft and the second drive shaft are both fixedly mounted with a driving gear, the driving gear meshes with a transmission gear on the transmission shaft, a power gear is provided on the transmission shaft below the transmission gear, the power gear meshes with an output gear on the main shaft, the output end of the cycloidal motor is connected to a shift shaft, a shift gear is movably mounted on the shift shaft, the first drive shaft, the second drive shaft, the main shaft, the transmission shaft and the shift shaft are all mounted on the power box through bearings, a lubrication gear is also fixedly mounted on the first drive shaft, the lubrication gear meshes with an oil pump gear, the oil pump gear is mounted on the power shaft of a lubrication pump, and the lubrication pump is connected to the bearing through an oil pipe.

[0005] Furthermore, a bracket is provided in the power box, and the lubrication pump is installed on the bracket.

[0006] Furthermore, the outer wall of the shift shaft is provided with a slide rail extending along its axial direction, and the shift gear is slidably connected to the shift shaft via the slide rail.

[0007] Furthermore, the top and bottom of the shift gear are provided with limit grooves, the support frame is cooperatively connected to the limit grooves, the top of the support frame is connected to the shift cylinder, and the shift cylinder is fixedly mounted on the power box.

[0008] Furthermore, a maintenance window for inspecting the internal workings of the power box is provided on the side wall of the power box.

[0009] Furthermore, the support frame includes two support plates, the shift gear is located between the two support plates, the front end of the support plate is provided with a C-shaped engaging groove that cooperates with the limiting groove, and the two support plates are connected by a connecting tube.

[0010] Due to the adoption of the above technical scheme, the beneficial technical effect of the utility model is as follows: the utility model is a three-hydraulic motor two-gear drilling rig power head, which is driven by one cycloidal motor and two variable hydraulic motors to rotate the gear mechanism, and the main shaft is driven to rotate through the gear mechanism to complete the power output, with adjustable torque and multi-purpose, suitable for operations under complex geological conditions, and an oil pump is provided in the power box. During the operation of the power box, the oil pump can be driven to lubricate the bearings, thereby ensuring the normal operation of the power box. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of a dual hydraulic motor drilling rig power head of the utility model;

[0012] Figure 2 This is a schematic diagram of the partial structure of a dual hydraulic motor drilling rig power head of the utility model. Figure 1 ;

[0013] Figure 3 This is a schematic diagram of the partial structure of a dual hydraulic motor drilling rig power head of the utility model. Figure 2 ;

[0014] Figure 4 It is a schematic diagram of the installation structure of the support frame in the utility model.

[0015] In the figure, 1, power box, 2, first variable motor, 3, second variable motor, 4, cycloidal motor, 5, first drive shaft, 6, second drive shaft, 7, drive gear, 8, main shaft, 9, output gear, 10, shift gear, 11, lubrication gear, 12, oil pump gear, 13, lubrication pump, 14, oil pipe, 15, bracket, 16, slide rail, 17, limit groove, 18, support plate, 19, connecting tube, 20, shift cylinder, 21, maintenance window, 22, shift shaft, 23, power gear, 24, transmission gear. DETAILED DESCRIPTION

[0016] In order to more clearly illustrate the technical solution of the utility model, the utility model is further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on this drawing and embodiment, which all belong to the protection scope of the utility model.

[0017] according to Figure 1-4As shown, a dual hydraulic motor drilling rig power head includes a power box 1, on which a first variable motor 2, a second variable motor 3 and a cycloidal motor 4 are arranged, the output ends of the first variable motor 2 and the second variable motor 3 are respectively connected to a first drive shaft 5 and a second drive shaft 6, the first drive shaft 5 and the second drive shaft 6 are both fixedly mounted with a drive gear 7, the drive gear 7 is meshed with a transmission gear 24 on the transmission shaft, a power gear 23 is arranged on the transmission shaft below the transmission gear 24, and the power gear 23 is meshed with the main The output gear 9 on the shaft 8 is meshed, and the output end of the cycloidal motor 4 is connected to the gear shift shaft 22, and the gear shift shaft 22 is movably mounted with a gear shift gear 10. The first drive shaft 5, the second drive shaft 6, the main shaft 8, the transmission shaft and the gear shift shaft 22 are all mounted on the power box 1 through bearings. A lubrication gear 11 is also fixedly mounted on the first drive shaft 5, and the lubrication gear 11 is meshed with an oil pump gear 12. The oil pump gear 12 is mounted on the power shaft of a lubrication pump 13, and the lubrication pump 13 is connected to the bearing through an oil pipe 14.

[0018] In the above specific implementation method, the present invention uses a new type of three-hydraulic motor two-speed drilling rig power head, which is driven by a cycloidal motor and 42 variable hydraulic motors to drive the gear 7 mechanism to rotate, and drives the main shaft 8 to rotate through the gear mechanism to complete power output. The torque is adjustable and multi-purpose, and it is suitable for operations under complex geological conditions.

[0019] During specific use, in the first gear, the two driving gears 7 are meshed with the transmission gear, the transmission gear and the power gear are both fixed on the upper transmission shaft, the power gear is meshed with the output gear 9 on the main shaft 8, driving the main shaft 8 to rotate to complete the power output, and the shift gear 10 and the output gear 9 are in a separated state.

[0020] In the second gear, the shift gear 10 meshes with the output gear 9 on the main shaft 8, the two driving gears 7 mesh with the transmission gear, the transmission gear and the power gear are both fixed on the upper transmission shaft, and the power gear meshes with the output gear 9 on the main shaft 8. The output gear 9 of the main shaft 8 is driven to rotate by the shift gear 10 and the power gear at the same time to complete the power output.

[0021] A bracket 15 is provided in the power box 1 , and the lubrication pump 13 is installed on the bracket 15 .

[0022] The outer wall of the shift shaft 22 is provided with a slide rail 16 extending along its axial direction. The shift gear 10 is slidably connected to the shift shaft 22 via the slide rail 16. During the operation of the power box 1, the bearing can be lubricated to ensure the normal operation of the oil tank.

[0023] An inspection window 21 for inspecting the internal workings of the power box 1 is provided on the side wall of the power box 1 .

[0024] The top and bottom of the shift gear 10 are provided with limit grooves 17, the support frame is connected with the limit grooves 17, the top of the support frame is connected with the shift oil cylinder 20, and the shift oil cylinder 20 is fixedly installed on the power box 1. The support frame includes two support plates 18, and the shift gear 10 is located between the two support plates 18. The front end of the support plate 18 is provided with a C-shaped interlocking groove that matches the limit groove 17, and the two support plates 18 are connected by a connecting tube 19. When it is necessary to change to the second gear, the piston of the shift oil cylinder 20 extends, driving the shift gear 10 to move downward and mesh with the output gear 9 to achieve the change of gear position. Through the support frame, the shift gear 10 can be reciprocated in the vertical direction on the shift shaft 22.

[0025] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A dual hydraulic motor drilling rig power head, comprising a power box (1), characterized in that: The power box (1) is provided with a first variable motor (2), a second variable motor (3) and a cycloidal motor (4); the output ends of the first variable motor (2) and the second variable motor (3) are respectively connected to a first drive shaft (5) and a second drive shaft (6); a driving gear (7) is fixedly mounted on the first drive shaft (5) and the second drive shaft (6); the driving gear (7) is meshed with a transmission gear (24) on the transmission shaft; a power gear (23) is provided on the transmission shaft below the transmission gear (24); the power gear (23) is meshed with an output gear (9) on the main shaft (8) The output end of the cycloid motor (4) is connected to a gearshift shaft (22), a gearshift gear (10) is movably mounted on the gearshift shaft (22), the first drive shaft (5), the second drive shaft (6), the main shaft (8), the transmission shaft and the gearshift shaft (22) are all mounted on the power box (1) through bearings, a lubrication gear (11) is also fixedly mounted on the first drive shaft (5), the lubrication gear (11) is meshed with an oil pump gear (12), the oil pump gear (12) is mounted on a power shaft of a lubrication pump (13), and the lubrication pump (13) is connected to the bearing through an oil pipe (14).

2. A dual hydraulic motor drilling rig power head according to claim 1, characterized in that: A bracket (15) is provided in the power box (1), and the lubrication pump (13) is installed on the bracket (15).

3. A dual hydraulic motor drilling rig power head according to claim 2, characterized in that: The outer wall of the shift shaft (22) is provided with a slide rail (16) extending along its axial direction, and the shift gear (10) is slidably connected to the shift shaft (22) via the slide rail (16).

4. A dual hydraulic motor drilling rig power head according to claim 3, characterized in that: The top and bottom of the shift gear (10) are provided with limit grooves (17), the support frame is cooperatively connected to the limit grooves (17), the top of the support frame is connected to the shift oil cylinder (20), and the shift oil cylinder (20) is fixedly mounted on the power box (1).

5. A dual hydraulic motor drilling rig power head according to claim 4, characterized in that: An inspection window (21) for inspecting the internal workings of the power box (1) is provided on the side wall of the power box (1).

6. A dual hydraulic motor drilling rig power head according to claim 4, characterized in that: The support frame comprises two support plates (18), the shift gear (10) is located between the two support plates (18), a front end of the support plate (18) is provided with a C-shaped engaging groove matched with the limiting groove (17), and the two support plates (18) are connected via a connecting tube (19).

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