Rotary driving mechanism for power head of drilling machine

Abstract

The utility model provides a rotary driving mechanism for a power head of a drilling machine. The rotary driving mechanism comprises a connecting shell, a transmission assembly, a protective cover and a hydraulic motor, the connecting shell comprises a first connecting plate, a second connecting plate and a wheel cover, and the transmission assembly comprises a transmission seat and a transmission shaft. The connecting shell, the transmission seat, the protective cover and the hydraulic motor are connected into an integrated structure, the overall stability and reliability of the hydraulic motor after the hydraulic motor is installed in place are guaranteed, and the whole rotary driving mechanism can be arranged independent of a drilling machine main frame based on the arrangement modes of the transmission assembly, the wheel cover and the like. Therefore, the drilling machine main frame does not need to be entered or detached during installation, detachment and maintenance, and personnel can operate conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling rigs, in particular to a rotary driving mechanism for a power head of a drilling rig. Background Art

[0002] A pile hole drilling rig is a special mechanical equipment widely used in the construction of water wells and pile holes. It is widely used in the construction of water wells in water-scarce areas, the drilling of air-conditioning wells in ground-source heat pump technology, and the construction of pile holes for high-rise building foundations and bridge foundations in urban construction. As the core output component of the pile hole drilling rig, the drilling rig power head mainly converts the liquid energy generated by the power source into mechanical energy so that the drill rod can obtain the drilling speed, torque and feed capacity required for cutting. The feed return of the drilling rig power head is usually driven by a chain and a sprocket, and the sprocket is usually driven by a hydraulic motor to rotate. Therefore, the hydraulic motor needs to be set in a suitable position and connected to the active sprocket transmission. The installation, disassembly and maintenance of the hydraulic motor in the existing technology are not convenient enough and need further improvement. Utility Model Content

[0003] The purpose of the utility model is to provide a rotary drive mechanism for a hydraulic motor that is easy to install, disassemble and maintain in order to address the deficiencies in the above-mentioned background technology.

[0004] In order to achieve the above-mentioned object, the utility model provides a rotary drive mechanism for a drilling rig power head, comprising a connecting housing, a transmission assembly, a protective cover and a hydraulic motor;

[0005] The connecting housing includes a first connecting plate, a second connecting plate, and a wheel cover. The first connecting plate, the second connecting plate, and the wheel cover form an integrated structure. The first connecting plate is provided with a plurality of bolt holes for connecting to the drilling rig via mounting bolts. The second connecting plate is provided with a plurality of bolt holes for connecting to the protective cover via mounting bolts. The wheel cover is used to cover the transmission wheel connected to the rotary drive mechanism.

[0006] The transmission assembly includes a transmission seat and a transmission shaft. The transmission seat is provided with a plurality of bolt holes and is connected to the output end of the hydraulic motor via mounting bolts. A through hole is provided in the center of the transmission seat. The first end of the transmission shaft passes through the through hole and is connected to the hydraulic motor. The second end of the transmission shaft passes through the wheel cover and is rotatably connected to the second connecting plate. The transmission wheel is connected to the transmission shaft.

[0007] The protective cover is provided with a plurality of bolt holes and is connected to the second connecting plate through mounting bolts. At the same time, the protective cover is connected to the input end of the hydraulic motor through mounting bolts.

[0008] Furthermore, the wheel cover is configured to be arched or semicircular.

[0009] Furthermore, the transmission seat is configured to be cylindrical so that the output end of the hydraulic motor is located inside the transmission seat.

[0010] Furthermore, a keyway is provided on the transmission shaft.

[0011] Furthermore, the protective cover is configured to be cylindrical, and after the hydraulic motor is connected to the protective cover, the interior of the protective cover forms a relatively sealed state.

[0012] Furthermore, a bearing seat and a bearing cover are provided on the second connecting plate. A bearing is provided in the bearing seat. The bearing is used to rotatably support the second end of the transmission shaft. The bearing cover and the bearing seat are detachably connected through bolt holes and mounting bolts.

[0013] The above solution of the utility model has the following beneficial effects:

[0014] The rotary drive mechanism of the drilling rig power head provided by the utility model is an integrated structure in which the connection housing, the transmission seat, the protective cover and the hydraulic motor are connected. This ensures the overall stability and reliability of the hydraulic motor after it is installed in place. Based on the arrangement of the transmission components, the wheel cover and the like, the entire rotary drive mechanism can be arranged independently of the drilling rig main frame. Therefore, there is no need to enter or disassemble the drilling rig main frame during installation, disassembly and maintenance, which facilitates operation by personnel.

[0015] Other beneficial effects of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall internal structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection housing structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the transmission assembly of the present utility model.

[0020] [Description of Reference Numerals]

[0021] 10-connecting housing; 11-first connecting plate; 12-second connecting plate; 13-wheel cover; 14-bearing seat; 15-bearing; 16-bearing cover; 20-transmission assembly; 21-transmission seat; 22-transmission shaft; 30-protective cover; 40-hydraulic motor; 50-mounting bolts; 60-transmission wheel. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments. Obviously, the embodiments described are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a locking connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] like Figure 1 、 Figure 2 As shown, the embodiment of the present invention provides a rotary drive mechanism for a drilling rig power head, comprising a connecting housing 10, a transmission assembly 20, a protective cover 30 and a hydraulic motor 40. Figure 3As shown, the connecting shell 10 includes a first connecting plate 11 arranged opposite to each other on the left and right sides, a second connecting plate 12 arranged opposite to each other on the front and rear sides, and a wheel cover 13 located between the first connecting plates 11. The first connecting plate 11, the second connecting plate 12 and the wheel cover 13 form an integral structure. In addition, a plurality of reinforcing elbow plates can be provided to enhance the overall structural strength. A plurality of bolt holes are provided on the first connecting plate 11, and the connecting shell 10 is connected to the drilling rig by installing bolts 50 to support the entire rotary drive mechanism. The second connecting plate 12 is arranged in a circular shape, and a plurality of bolt holes are also provided on the front second connecting plate 12, which is connected to the protective cover 13 by installing bolts 50. The wheel cover 13 is arched or semicircular as a whole to protect the transmission wheel 60 connected to the rotary drive mechanism from being exposed to the outside, while ensuring that the transmission wheel 60 transmits the rotary motion to the outside of the connecting shell 10.

[0026] At the same time Figure 4 As shown, the transmission assembly includes a transmission seat 21 and a transmission shaft 22. Among them, a plurality of bolt holes are provided on the transmission seat 21, which is connected to the (output end of) the hydraulic motor 40 by installing bolts 50. At the same time, a through hole is provided in the center of the transmission seat 21, and the first end of the transmission shaft 22 is located inside the transmission seat 21 after passing through the through hole. It should be noted that, in this embodiment, the transmission seat 21 is configured to be cylindrical, so that the output end of the hydraulic motor 40 is located inside the transmission seat 21, which is convenient for connection with the first end of the transmission shaft 22. The second end of the transmission shaft 22 is rotatably connected to the second connecting plate 12 on the rear side after passing through the wheel cover 13, and a keyway is also provided on the transmission shaft 22 to connect to the transmission wheel 60 through a key. Among them, the transmission wheel 60 is a sprocket, and of course it can also be a gear, etc.

[0027] In this embodiment, the protective cover 30 is also cylindrical and has multiple bolt holes on its end surface. It is connected to the second front connecting plate 12 via mounting bolts 50, thereby forming an integral structure with the connection housing 10. The protective cover 30 is also connected to (the input end of) the hydraulic motor 40 via mounting bolts 50, thereby integrating the hydraulic motor 40 with the protective cover 30. The interior of the protective cover 30 is relatively sealed, preventing the external environment from affecting the transmission process of the transmission assembly.

[0028] As can be seen above, in this embodiment, the connection housing 10, transmission base 21, protective cover 30, and hydraulic motor 40 are connected into an integrated structure through the provision of multiple mounting bolts 50, ensuring overall stability and reliability once the hydraulic motor 40 is in place. The arrangement of the transmission assembly 20, wheel guard 13, and other components allows the entire rotary drive mechanism to be installed independently of the main drilling rig frame. Therefore, installation, disassembly, and maintenance do not require entry or disassembly of the main drilling rig frame, facilitating operator access.

[0029] As a preferred embodiment, a bearing seat 14 is also provided on the rear second connecting plate 12 in this embodiment. A bearing 15 is housed within the bearing seat 14. The bearing 15 provides rotatable support for the second end of the transmission shaft 22, further enhancing transmission stability and reliability. The bearing seat 14 is covered by a bearing cover 16, allowing it to be opened when the bearing 15 needs to be inspected or replaced. The bearing cover 16 and the bearing seat 14 are also detachably connected via bolt holes and mounting bolts 50.

[0030] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A rotary drive mechanism for a drilling rig power head, characterized in that: It includes a connecting housing, a transmission assembly, a protective cover and a hydraulic motor; The connecting housing includes a first connecting plate, a second connecting plate, and a wheel cover. The first connecting plate, the second connecting plate, and the wheel cover form an integrated structure. The first connecting plate is provided with a plurality of bolt holes for connecting to the drilling rig via mounting bolts. The second connecting plate is provided with a plurality of bolt holes for connecting to the protective cover via mounting bolts. The wheel cover is used to cover the transmission wheel connected to the rotary drive mechanism. The transmission assembly includes a transmission seat and a transmission shaft. The transmission seat is provided with a plurality of bolt holes and is connected to the output end of the hydraulic motor via mounting bolts. A through hole is provided in the center of the transmission seat. The first end of the transmission shaft passes through the through hole and is connected to the hydraulic motor. The second end of the transmission shaft passes through the wheel cover and is rotatably connected to the second connecting plate. The transmission wheel is connected to the transmission shaft. The protective cover is provided with a plurality of bolt holes and is connected to the second connecting plate through mounting bolts. At the same time, the protective cover is connected to the input end of the hydraulic motor through mounting bolts.

2. A rotary drive mechanism for a drilling rig power head according to claim 1, characterized in that: The wheel cover is configured to be arched or semicircular.

3. The rotary drive mechanism of a drilling rig power head according to claim 1, characterized in that: The transmission seat is configured in a cylindrical shape so that the output end of the hydraulic motor is located inside the transmission seat.

4. The rotary drive mechanism of a drilling rig power head according to claim 1, characterized in that: A keyway is provided on the transmission shaft.

5. The rotary drive mechanism of a drilling rig power head according to claim 1, characterized in that: The protective cover is configured to be cylindrical, and after the hydraulic motor is connected to the protective cover, the interior of the protective cover forms a relatively sealed state.

6. The rotary drive mechanism for a drilling rig power head according to claim 1, characterized in that: The second connecting plate is also provided with a bearing seat and a bearing cover. A bearing is provided in the bearing seat. The bearing is used to rotatably support the second end of the transmission shaft. The bearing cover and the bearing seat are detachably connected through bolt holes and mounting bolts.

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