Coal bed gas drilling power head

Abstract

The coal bed gas drilling power head comprises a driving box and an oil injection box, the oil injection box is fixedly connected to the left side of the top of the driving box, an oil inlet pipe is fixedly connected to the middle of the top of the oil injection box, and an upper sealing cover is connected to the upper side of the outer side wall of the oil inlet pipe in a threaded mode. The left side and the right side of the top of an inner cavity of the oil injection tank are rotationally connected with lead screws, the tail ends of the lead screws are fixedly connected with first bevel gears, the outer side walls of the lead screws are in threaded connection with lifting plates, the tops of the lifting plates are fixedly connected with lower sealing covers, and the lower side of the right side wall of the inner cavity of the oil injection tank is rotationally connected with a rotating shaft. The coal bed gas drilling power head has the advantages that the structural design is reasonable, lubricating oil can be conveniently added, whether the coal bed gas drilling power head is loosened or not can be quickly monitored, and the use effect of the coal bed gas drilling power head is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power head, concretely is a coal bed gas drilling power head. BACKGROUND

[0002] Coal bed gas is the hydrocarbon gas that exists in coal seam with methane as main component, is mainly adsorbed on the surface of coal matrix particle, partly free in coal pore or dissolved in coal seam water, is the semi raw mineral resources of coal, belongs to unconventional natural gas, and the coal bed gas mining needs to use the drill bit to drill the well, and the device that drives the drill bit rotation is power head, and power head is a device that converts electric energy or other form energy into mechanical energy.

[0003] The existing power head needs to replace the lubricating oil in the drive box after long time use, and when replacing the lubricating oil, the drive box needs to be disassembled as a whole, so that the replacement of the lubricating oil is very inconvenient, and the general power head will produce vibration and impact when driving the drill bit to drill the well, and the vibration and impact will cause the power head to loosen, once the power head loosens, the drill rod cannot rotate along the axis, and the drill rod will be bent, affecting the drilling work, therefore, the utility model provides a coal bed gas drilling power head. UTILITY MODEL CONTENTS

[0004] The utility model discloses a coal bed gas drilling power head, to solve the problem that the existing power head needs to replace the lubricating oil in the drive box after long time use, and when replacing the lubricating oil, the drive box needs to be disassembled as a whole, so that the replacement of the lubricating oil is very inconvenient, and the general power head will produce vibration and impact when driving the drill bit to drill the well, and the vibration and impact will cause the power head to loosen, once the power head loosens, the drill rod cannot rotate along the axis, and the drill rod will be bent, affecting the drilling work.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a coal bed gas drilling power head, including drive box and oil injection tank, the oil injection tank fixed connection in the top left side of drive box, the top middle part of oil injection tank is fixedly connected with the oil inlet pipe, the outer lateral wall upper side of oil inlet pipe is screwed with upper sealing cover, the inner chamber top of oil injection tank is rotatably connected with the lead screw on both sides, the tail end of lead screw is fixedly connected with the first bevel gear, the outer lateral wall of lead screw is screwed with the lifting plate, the top of lifting plate is fixedly connected with the lower sealing cover, the inner chamber right side wall lower side of oil injection tank is rotatably connected with the rotating shaft, the tail end of rotating shaft penetrates oil injection tank and extends to the left side wall lower side of oil injection tank, and the tail end of rotating shaft is fixedly connected with the knob, the outer lateral wall of rotating shaft is fixedly connected with the second bevel gear on both sides, and the second bevel gear is rotatably engaged with the first bevel gear.

[0006] As a further description of the above technical solutions:

[0007] The left side wall of the drive box is fixedly connected with a discharge pipe, and a valve is fixedly connected to the middle of the outer side wall of the discharge pipe through a flange.

[0008] As a further description of the above technical solutions:

[0009] The right side wall of the drive box is fixedly connected with a mounting plate, the middle of the right side wall of the mounting plate is inlaid with a first conductive sheet, and the right side wall of the mounting plate is integrally formed with positioning blocks on the upper side and the lower side.

[0010] As a further description of the above technical solutions:

[0011] The right side wall of the drive box is fixedly connected with a mounting plate, the middle of the right side wall of the mounting plate is inlaid with a first conductive sheet, and the right side wall of the mounting plate is integrally formed with positioning blocks on the upper side and the lower side.

[0012] As a further description of the above technical solutions:

[0013] The top of the butt joint plate is fixedly connected with an indicator lamp, and the indicator lamp is electrically connected with the first conductive sheet through an electric wire.

[0014] As a further description of the above technical solutions:

[0015] The right side wall of the oil injection tank is fixedly connected with a connecting pipe, and the end of the connecting pipe is fixedly connected to the top left side of the drive box.

[0016] Compared with the prior art, the coal bed gas drilling power head has the advantages that:

[0017] 1. The coal bed gas drilling power head, by turning the upper sealing cover off the oil inlet pipe, the upper end of the oil inlet pipe is opened, then by rotating the knob, the rotating shaft is driven to rotate, the second bevel gear is driven to rotate by the rotating shaft, the first bevel gear is driven to rotate by the second bevel gear, and then the lead screw is rotated, at this time, the lead screw drives the lifting plate to move, the lifting plate is lowered below the pipe opening of the connecting pipe, at the same time, the lower sealing cover is also lowered, and then the lower end of the oil inlet pipe is opened, finally, by inputting lubricating oil into the oil inlet pipe, the lubricating oil enters the oil injection tank and enters the drive box from the connecting pipe, and then the addition of lubricating oil is completed, so that the power head can be conveniently added with lubricating oil.

[0018] 2、The coal bed gas drilling power head, when not loosening, the first conductive sheet and the second conductive sheet contact each other, so that the circuit is communicated and the indicator light is on, when the power head loosens, a gap is formed between the mounting plate and the butt plate, then the first conductive sheet and the second conductive sheet are separated, so that the circuit is short-circuited, and then the indicator light is off, so that the loosening of the power head can be quickly monitored, so that the drilling work is prevented from being affected, so that the device can quickly monitor whether the device loosens, and the use effect of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A three-dimensional structural schematic view of the coal bed gas drilling power head is provided for the utility model;

[0020] Figure 2 A front view structural schematic view of the coal bed gas drilling power head is provided for the utility model;

[0021] Figure 3 A front view sectional view structural schematic view of the coal bed gas drilling power head is provided for the utility model;

[0022] Figure 4 A coal bed gas drilling power head is provided for the utility model; Figure 3 An enlarged structural schematic view of A in the figure.

[0023] In the figure: 100, a drive box; 110, a discharge pipe; 120, a valve; 130, a mounting plate; 140, a first conductive sheet; 150, a positioning block; 160, a butt plate; 170, a second conductive sheet; 180, a positioning groove; 190, an indicator light; 200, an oil injection tank; 210, an oil inlet pipe; 211, an upper sealing cover; 220, a lead screw; 230, a first bevel gear; 240, a lifting plate; 250, a lower sealing cover; 260, a rotating shaft; 261, a knob; 270, a second bevel gear; and 280, a connecting pipe. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] In the description of the utility model, need understanding is, the term "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" "internal", "external", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and so on the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawing, just is for the convenience of describing the utility model and simplifying the description, and not indicate or imply the device or element indicated must have a particular orientation, with a particular orientation configuration and operation, therefore can not be understood as the restriction of the utility model.In addition, the feature that is defined with "first", "second" can be explicitly or implicitly include one or more features.In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two.

[0026] In the description of the utility model, it should be explained that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected;Can be mechanical connection, can also be electrical connection;Can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements.Understand the specific meaning of the above-mentioned terms in the utility model for the ordinary skilled in the art according to the specific circumstances.

[0027] The utility model provides a kind of coalbed gas drilling power head, can be conveniently added lubricating oil, and can quickly monitor whether self appears loose, improve device use effect, please refer to Figures 1-4 Including drive box 100 and oil injection tank 200;

[0028] Please refer to Figures 1-3The left side wall of the driving box 100 is fixedly connected with a discharge pipe 110 at the lower side, the discharge pipe 110 is used for discharging old lubricating oil, the outer side wall of the discharge pipe 110 is fixedly connected with a valve 120 at the middle part through a flange, the valve 120 is used for opening and closing the discharge pipe 110, the right side wall of the driving box 100 is fixedly connected with a mounting plate 130, the mounting plate 130 is used for being mounted on the butt joint plate 160, the right side wall of the mounting plate 130 is embedded with a first conductive sheet 140 at the middle part, the first conductive sheet 140 is used for butt joint with a second conductive sheet 170, the right side wall of the mounting plate 130 is integrally formed with a positioning block 150 at the upper side and the lower side, the positioning block 150 is used for positioning, the right side wall of the mounting plate 130 is screwed with the butt joint plate 160, the butt joint plate 160 is used for mounting the butt joint plate 160, the left side wall of the butt joint plate 160 is embedded with the second conductive sheet 170 at the middle part, the second conductive sheet 170 butt joints with the first conductive sheet 140, the left side wall of the butt joint plate 160 is provided with a positioning groove 180 at the upper side and the lower side, the positioning groove 180 is used for positioning, the top of the butt joint plate 160 is fixedly connected with an indicating lamp 190, the indicating lamp 190 is electrically connected with the first conductive sheet 140 through an electric wire, the indicating lamp 190 is used for displaying whether the device is loose, when the device is not loose, the first conductive sheet 140 and the second conductive sheet 170 will contact each other, so that the circuit is connected and the indicating lamp 190 is turned on, when the power head is loose, a gap is generated between the mounting plate 130 and the butt joint plate 160, then the first conductive sheet 140 and the second conductive sheet 170 are separated, so that the circuit is short-circuited, and then the indicating lamp 190 is turned off, at this time, the power head can be quickly monitored to be loose, so as to be repaired, and the drilling work is prevented from being affected;

[0029] In summary, the device can quickly monitor whether the device is loose, and the use effect of the device is improved.

[0030] Please refer to Figures 1-4The oil injection tank 200 is fixedly connected to the top left side of the driving tank 100, an oil inlet pipe 210 is fixedly connected to the top middle of the oil injection tank 200, the oil inlet pipe 210 is used for inputting lubricating oil, an upper sealing cover 211 is screwed on the outer side wall of the oil inlet pipe 210, the upper sealing cover 211 is used for sealing the upper end of the oil inlet pipe 210, lead screws 220 are rotatably connected to the top left and right sides of the inner cavity of the oil injection tank 200, the lead screws 220 are used to drive the lifting plates 240 to move, first bevel gears 230 are fixedly connected to the ends of the lead screws 220, the first bevel gears 230 are used to drive the lead screws 220 to rotate, the lifting plates 240 are screwed on the outer side walls of the lead screws 220, the first bevel gears 230 are used to drive the lower sealing covers 250 to move, the lower sealing covers 250 are fixedly connected to the top of the lifting plates 240, the lower sealing covers 250 are used for sealing the lower end of the oil inlet pipe 210, a rotating shaft 260 is rotatably connected to the lower side of the right side wall of the inner cavity of the oil injection tank 200, the rotating shaft 260 is used to drive the second bevel gears 270 to rotate, the rotating shaft 260 penetrates through the oil injection tank 200 and extends to the lower side of the left side wall of the oil injection tank 200, a knob 261 is fixedly connected to the end of the rotating shaft 260, the knob 261 is used to drive the rotating shaft 260, the second bevel gears 270 are fixedly connected to the left and right sides of the outer side wall of the rotating shaft 260, the second bevel gears 270 are engaged with the first bevel gears 230 to rotate, the second bevel gears 270 are used to drive the first bevel gears 230 to rotate, a connecting pipe 280 is fixedly connected to the right side wall of the oil injection tank 200, the end of the connecting pipe 280 is fixedly connected to the top left side of the driving tank 100, the connecting pipe 280 is used to communicate the oil injection tank 200 and the driving tank 100, the upper sealing cover 211 is unscrewed from the oil inlet pipe 210 by rotating, so that the upper end of the oil inlet pipe 210 is opened, then the rotating knob 261 is rotated, so that the rotating shaft 260 is driven to rotate, then the rotating shaft 260 drives the second bevel gears 270 to rotate, so that the second bevel gears 270 drive the first bevel gears 230 to rotate, and then the lead screws 220 are driven to rotate, at this time, the lead screws 220 drive the lifting plates 240 to move, so that the lifting plates 240 are lowered below the pipe opening of the connecting pipe 280, at the same time, the lifting plates 240 also drive the lower sealing covers 250 to be lowered, and then the lower end of the oil inlet pipe 210 is opened, finally, the lubricating oil is input into the oil inlet pipe 210, so that the lubricating oil enters the oil injection tank 200 and then enters the driving tank 100 through the connecting pipe 280, and the addition of the lubricating oil is completed.

[0031] In summary, the power head can be conveniently added with lubricating oil.

[0032] In the specific use, the person skilled in the art first abuts the positioning block 150 of the mounting plate 130 to the alignment positioning groove 180 of the butt joint plate 160, then screws the bolt, so that the mounting plate 130 is fixed on the butt joint plate 160, which makes the first conductive sheet 140 and the second conductive sheet 170 contact each other, so that the circuit communication indicating lamp 190 is turned on, then in the drilling process, once loosening occurs, a gap is generated between the mounting plate 130 and the butt joint plate 160, then the first conductive sheet 140 and the second conductive sheet 170 are separated, so that the circuit is short-circuited, and then the indicating lamp 190 is turned off, at this time, the power head loosening can be quickly monitored, so as to be repaired, when the lubricating oil needs to be replaced, the valve 120 is opened, so that the old lubricating oil in the driving box 100 is discharged from the discharge pipe 110, then the upper sealing cover 211 is unscrewed from the oil inlet pipe 210 by rotating, so that the upper end of the oil inlet pipe 210 is opened, then the knob 261 is rotated, so as to drive the rotating shaft 260 to rotate, then the second bevel gear 270 is driven to rotate by the rotating shaft 260, so that the first bevel gear 230 is driven to rotate by the second bevel gear 270, then the screw rod 220 is rotated, at this time, the lifting plate 240 is driven to move by the screw rod 220, so as to lower the lifting plate 240 below the pipe opening of the connecting pipe 280, at the same time, the lower sealing cover 250 is also lowered by the lifting plate 240, so that the lower end of the oil inlet pipe 210 is opened, finally, the lubricating oil is input into the oil inlet pipe 210, so that the lubricating oil enters the oil injection tank 200 and enters the driving box 100 from the connecting pipe 280, thereby completing the addition of the lubricating oil.

[0033] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A power head for coalbed methane drilling, characterized in that: The system includes a drive housing (100) and an oil tank (200). The oil tank (200) is fixedly connected to the top left side of the drive housing (100). An oil inlet pipe (210) is fixedly connected to the middle of the top of the oil tank (200). An upper sealing cap (211) is screwed onto the upper side of the outer wall of the oil inlet pipe (210). Lead screws (220) are rotatably connected to the left and right sides of the top of the inner cavity of the oil tank (200). A first bevel gear (230) is fixedly connected to the end of the lead screw (220). A lifting plate (240) is screwed onto the outer wall of the lead screw (220). The top of the lifting plate (240) is fixedly connected to a lower sealing cover (250). The lower side of the right side wall of the inner cavity of the oil tank (200) is rotatably connected to a rotating shaft (260). The end of the rotating shaft (260) passes through the oil tank (200) and extends to the lower side of the left side wall of the oil tank (200). A knob (261) is fixedly connected to the end of the rotating shaft (260). The left and right sides of the outer side wall of the rotating shaft (260) are fixedly connected to a second bevel gear (270). The second bevel gear (270) meshes with the first bevel gear (230) and rotates.

2. The coalbed methane drilling power head according to claim 1, characterized in that: A discharge pipe (110) is fixedly connected to the lower side of the left side wall of the drive box (100), and a valve (120) is fixedly connected to the middle of the outer side wall of the discharge pipe (110) via a flange.

3. The coalbed methane drilling power head according to claim 1, characterized in that: The right side wall of the drive box (100) is fixedly connected to an installation plate (130), and a first conductive sheet (140) is embedded in the middle of the right side wall of the installation plate (130). Positioning blocks (150) are integrally formed on the upper and lower sides of the right side wall of the installation plate (130).

4. The coalbed methane drilling power head according to claim 3, characterized in that: The mounting plate (130) has a docking plate (160) screwed to its right side wall. A second conductive sheet (170) is embedded in the middle of the left side wall of the docking plate (160). Positioning grooves (180) are provided on the upper and lower sides of the left side wall of the docking plate (160).

5. A coalbed methane drilling power head according to claim 4, characterized in that: An indicator light (190) is fixedly connected to the top of the docking plate (160), and the indicator light (190) is electrically connected to the first conductive sheet (140) via a wire.

6. The coalbed methane drilling power head according to claim 1, characterized in that: A connecting pipe (280) is fixedly connected to the right side wall of the oil tank (200), and the end of the connecting pipe (280) is fixedly connected to the top left side of the drive box (100).

Images