Four-gear direct current winch for trailer drilling machine

Abstract

The utility model relates to the technical field of winch equipment, in particular to a four-gear direct current winch for a trailer drilling machine, which comprises a base, and an automatic drill shaft feeding assembly, an input shaft assembly, a first intermediate shaft assembly, a second intermediate shaft assembly and a roller shaft assembly which are sequentially and mutually driven are longitudinally arranged on the base. The base is further provided with an eddy current brake shaft assembly located on one side of the roller shaft assembly, the roller shaft assembly is connected with the eddy current brake shaft assembly, the input shaft assembly is connected with a direct current motor, and the direct current motor is located between the automatic drill shaft feeding assembly and the eddy current brake shaft assembly. And the eddy current brake axle assembly is connected with an electromagnetic eddy current brake. The four-gear direct-current winch is small in width size, can be installed on a trailer, meets the towing requirement that a derrick and the winch serve as a towing module, and is suitable for towing a drilling well or a vehicle-mounted direct-current drilling machine.

Description

Technical Field

[0001] The utility model relates to the technical field of winch equipment, and particularly relates to a four-speed DC winch for a trailer-mounted drilling rig. Background Art

[0002] At present, the conventional DC winches used in oil fields are three-axis transmissions (including an input shaft assembly, an intermediate shaft assembly, and a drum shaft assembly). The winch is disengaged / engaged through the clutch combinations at both ends of the intermediate shaft assembly and the drum shaft assembly, resulting in a total of 2×2 gears to achieve multi-speed shifting to meet the requirements of drilling working conditions, that is, the winch first gear (low-speed end clutch of the intermediate shaft + low-speed clutch of the drum shaft); the winch second gear (high-speed end clutch of the intermediate shaft + low-speed clutch of the drum shaft); the winch third gear (low-speed end clutch of the intermediate shaft + high-speed clutch of the drum shaft); the winch fourth gear (high-speed end clutch of the intermediate shaft + high-speed clutch of the drum shaft). The conventional DC winch is affected by the layout of the input shaft assembly, the intermediate shaft assembly, and the drum shaft assembly, with a large external dimension, especially an extremely long winch length. Due to the influence of the transportation width, the conventional DC winch cannot be installed on a trailer and cannot meet the overall quick movement of the drilling rig. Summary of the Utility Model

[0003] In view of the above problems, the utility model provides a four-speed DC winch for a trailer-mounted drilling rig, which solves the problems of unreasonable layout of the existing winch and inability to meet the overall quick movement of the drilling rig.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a four-speed DC winch for a trailer-mounted drilling rig, including a base. An automatic feed drilling shaft assembly, an input shaft assembly, an intermediate shaft assembly one, an intermediate shaft assembly two, and a drum shaft assembly are longitudinally arranged on the base and are sequentially driven by each other. An eddy current brake shaft assembly is also arranged on the base on one side of the drum shaft assembly. The drum shaft assembly is connected to the eddy current brake shaft assembly. The input shaft assembly is connected to a DC motor, and the DC motor is located between the automatic feed drilling shaft assembly and the eddy current brake shaft assembly. The eddy current brake shaft assembly is connected to an electromagnetic eddy current brake.

[0005] As an optimization, the automatic feed drilling shaft assembly includes a small sprocket one, a pneumatic tire clutch, a planetary reduction gearbox, and a variable frequency motor.

[0006] As an optimization, the input shaft assembly includes a sprocket three and a sprocket two connected to the small sprocket one.

[0007] As an optimization, the intermediate shaft assembly one includes a sprocket four, a sprocket five connected to the sprocket two, a fork shift mechanism, and a sprocket six connected to the sprocket three.

[0008] As an optimization, the intermediate shaft assembly two includes a sprocket seven connected to the sprocket four, a sprocket eight, a sprocket nine, and a push plate clutch one.

[0009] As an optimization, the drum shaft assembly includes a push plate clutch II, a sprocket X connected to the sprocket VIII, a sprocket XI connected to the sprocket IX, a hydraulic disc brake, and a sprocket XII.

[0010] As an optimization, the eddy current brake shaft assembly includes a sprocket XIII connected to the sprocket XII.

[0011] The beneficial effects of the present utility model are as follows: A four-speed DC winch for a trailer-mounted drilling rig provided by the present utility model has a small width dimension and can be installed on a trailer. The four-speed DC winch meets the towing requirements of the derrick and the winch as a towing module and is applicable to towed drilling or vehicle-mounted DC drilling rigs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of the winch of the present utility model.

[0013] Wherein: 1. Automatic feed drill shaft assembly, 1-1. Small sprocket I, 1-2. Pneumatic tire clutch, 1-3. Planetary reduction gearbox, 1-4. Variable frequency motor, 2. Input shaft assembly, 2-1. Sprocket II, 2-2. Sprocket III, 3. Intermediate shaft assembly I, 3-1. Sprocket IV, 3-2. Sprocket V, 3-3. Fork shift mechanism, 3-4. Sprocket VI, 4. Intermediate shaft assembly II, 4-1. Sprocket VII, 4-2. Sprocket VIII, 4-3. Sprocket IX, 4-4. Push plate clutch I, 5. Drum shaft assembly, 5-1. Push plate clutch II, 5-2. Sprocket X, 5-3. Sprocket XI, 5-4. Hydraulic disc brake, 5-5. Sprocket XII, 6. Eddy current brake shaft assembly, 6-1. Sprocket XIII, 7. Electromagnetic eddy current brake, 8. DC motor, 9. Base. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0015] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0016] For the convenience of description, in the present utility model, if words such as "upper", "lower", "left", and "right" appear, they only indicate the same directions as the upper, lower, left, and right of the attached drawings themselves, and do not limit the structure. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0017] As Figure 1 shown, a four - speed DC winch for a towed drilling rig includes a base 9. Longitudinally arranged on the base 9 are an automatic drill feed shaft assembly 1, an input shaft assembly 2, an intermediate shaft assembly one 3, an intermediate shaft assembly two 4, and a drum shaft assembly 5 that are sequentially driven by each other. On the base 9, there is also an eddy current brake shaft assembly 6 located on one side of the drum shaft assembly 5. The drum shaft assembly 5 is connected to the eddy current brake shaft assembly 6. The input shaft assembly 2 is connected to a DC motor 8. The DC motor 8 is located between the automatic drill feed shaft assembly 1 and the eddy current brake shaft assembly 6. The eddy current brake shaft assembly 6 is connected to an electromagnetic eddy current brake 7. Power is transmitted between the automatic drill feed shaft assembly 1, the input shaft assembly 2, the intermediate shaft assembly one 3, the intermediate shaft assembly two 4, the drum shaft assembly 5, and the eddy current brake shaft assembly 6 through chains.

[0018] The automatic drill feed shaft assembly 1 includes a small sprocket one 1 - 1, a pneumatic tire clutch 1 - 2, a planetary reduction gearbox 1 - 3, and a variable - frequency motor 1 - 4.

[0019] The input shaft assembly 2 includes a sprocket three 2 - 2 and a sprocket two 2 - 1 connected to the small sprocket one 1 - 1.

[0020] The intermediate shaft assembly one 3 includes a sprocket four 3 - 1, a sprocket five 3 - 2 connected to the sprocket two 2 - 1, a fork shifting mechanism 3 - 3, and a sprocket six 3 - 4 connected to the sprocket three 2 - 2. The fork shifting mechanism 3 - 3 on the intermediate shaft assembly one 3 realizes shifting through the control of a three - position cylinder, enabling power to be transmitted from the input shaft assembly 2 to the intermediate shaft one with 2 gears.

[0021] The intermediate shaft assembly two 4 includes a sprocket seven 4 - 1 connected to the sprocket four 3 - 1, a sprocket eight 4 - 2, a sprocket nine 4 - 3, and a push - plate clutch one 4 - 4. The sprocket nine 4 - 3 of the intermediate shaft assembly two 4 is fixedly connected to the outer hub of the push - plate clutch one 4 - 4 through bolts. The inner hub of the push - plate clutch one 4 - 4 is installed on the shaft, and the clutch of power transmission is realized by controlling the engagement and disengagement of the push - plate clutch one 4 - 4.

[0022] The drum shaft assembly 5 includes a push - plate clutch II 5 - 1, a sprocket X 5 - 2 connected to the sprocket VIII 4 - 2, a sprocket XI 5 - 3 connected to the sprocket IX 4 - 3, a hydraulic disc brake 5 - 4, and a sprocket XII 5 - 5. Similarly, the power transmission clutch of another path is realized by controlling the push - plate clutch II 5 - 1 of the drum shaft assembly 5.

[0023] The eddy - current brake shaft assembly 6 includes a sprocket XIII 6 - 1 connected to the sprocket XII 5 - 5.

[0024] The sprocket V 3 - 2 and the sprocket VI 3 - 4 of the intermediate shaft assembly I 3 of the present utility model are installed on the intermediate shaft assembly I 3 through bearings, and power can be transmitted only when the fork - shift mechanism 3 - 3 is engaged with the sprocket side. When the fork - shift mechanism 3 - 3 is engaged with the sprocket V 3 - 2 side, power is transmitted from the sprocket II 2 - 1 of the input shaft assembly 2 to the sprocket V 3 - 2, and then transmitted to the intermediate shaft I through the fork - shift mechanism 3 - 3. Since the sprocket IV 3 - 1 is directly installed on the shaft, the power is then transmitted to the sprocket IV 3 - 1. And since the sprocket VI 3 - 4 is installed with bearings, it can only rotate idly and cannot transmit power to the shaft. The power transmission path is sprocket II 2 - 1 → sprocket V 3 - 2 → sprocket IV 3 - 1 → sprocket VII 4 - 1. By the same principle, when the fork - shift mechanism 3 - 3 is engaged with the sprocket VI 3 - 4 side, the power transmission path is sprocket III 2 - 2 → sprocket VI 3 - 4 → sprocket IV 3 - 1 → sprocket VII 4 - 1.

[0025] The sprocket IX 4 - 3 of the intermediate shaft II of the present utility model is fixedly connected to the outer hub of the push - plate clutch I 4 - 4 by bolts. The inner hub of the push - plate clutch I 4 - 4 is installed on the shaft, and the push - plate clutch II 5 - 1 of the drum shaft assembly 5 is installed in the same way. When the push - plate clutch I 4 - 4 is engaged, the power on the shaft is transmitted to the sprocket IX 4 - 3 through the push - plate clutch I 4 - 4, and then transmitted to the sprocket XI 5 - 3. Since the sprocket X 5 - 2 is installed with bearings and the push - plate clutch II 5 - 1 is not engaged, the sprocket X 5 - 2 can only rotate idly, and the power will not be transmitted to the drum shaft through the sprocket VIII 4 - 2. So the power transmission path is sprocket VII 4 - 1 → sprocket IX 4 - 3 → sprocket XI 5 - 3 → drum. By the same principle, when the push - plate clutch II 5 - 1 is engaged, the power transmission path is sprocket VII 4 - 1 → sprocket VIII 4 - 2 → sprocket X 5 - 2 → drum. And the push - plate clutch I 4 - 4 and the push - plate clutch II 5 - 1 are interlocked by a pneumatic control system and cannot be engaged simultaneously.

[0026] The present utility model has 4 gears, that is, 2×2 power transmission paths. The 4 - gear shifting is realized by the clutch control of the fork - shift mechanism 3 - 3, the push - plate clutch I 4 - 4 of the intermediate shaft II, and the push - plate clutch II 5 - 1 of the drum shaft assembly 5.

[0027] When the winch needs to engage gear I, shift the fork shifting mechanism 3-3 to the side of sprocket five 3-2, disengage the push plate clutch one 4-4, and engage the push plate clutch two 5-1. The power transmission path is: sprocket two 2-1 → sprocket five 3-2 → sprocket four 3-1 → sprocket seven 4-1 → sprocket eight 4-2 → sprocket ten 5-2 → drum. When the winch needs to engage gear II, shift the fork shifting mechanism 3-3 to the side of sprocket six 3-4, disengage the push plate clutch one 4-4, and engage the push plate clutch two 5-1.

[0028] When the winch needs to engage gear III, shift the fork shifting mechanism 3-3 to the side of sprocket five 3-2, engage the push plate clutch one 4-4, and disengage the push plate clutch two 5-1. When the winch needs to engage gear IV, shift the fork shifting mechanism 3-3 to the side of sprocket six 3-4, engage the push plate clutch one 4-4, and disengage the push plate clutch two 5-1.

[0029] The above specific embodiments are only specific cases of the present invention. The patent protection scope of the present invention includes but is not limited to the product forms and patterns of the above specific embodiments. Any appropriate changes or modifications made by any person of ordinary skill in the art that meet the claims of the present invention shall fall within the patent protection scope of the present invention.

Claims

1. A four-speed DC winch for a trailer-mounted drilling rig, characterized in that: It includes a base, on which there are longitudinally arranged an automatic drill feed shaft assembly, an input shaft assembly, a first intermediate shaft assembly, a second intermediate shaft assembly and a roller shaft assembly that are driven by each other in sequence. There is also an eddy current brake shaft assembly located on one side of the roller shaft assembly on the base. The roller shaft assembly is connected to the eddy current brake shaft assembly. The input shaft assembly is connected to a DC motor, and the DC motor is located between the automatic drill feed shaft assembly and the eddy current brake shaft assembly. The eddy current brake shaft assembly is connected to an electromagnetic eddy current brake.

2. The four-speed DC winch for a trailer-mounted drill rig according to claim 1, characterized in that: The automatic drill feed shaft assembly includes a first small sprocket, a pneumatic tire clutch, a planetary reduction gearbox and a variable frequency motor.

3. The four-speed DC winch for a trailer-mounted drilling rig according to claim 2, wherein: The input shaft assembly includes a third sprocket and a second sprocket connected to the first small sprocket.

4. The four-speed DC winch for trailer-mounted drilling rig according to claim 3, characterized in that: The first intermediate shaft assembly includes a fourth sprocket, a fifth sprocket connected to the second sprocket, a fork shift mechanism and a sixth sprocket connected to the third sprocket.

5. The four-speed DC winch for a trailer-mounted drill rig according to claim 4, wherein: The second intermediate shaft assembly includes a seventh sprocket connected to the fourth sprocket, an eighth sprocket, a ninth sprocket and a first push plate clutch.

6. The four-speed DC winch for a towed drill rig according to claim 5, characterized in that: The roller shaft assembly includes a second push plate clutch, a tenth sprocket connected to the eighth sprocket, an eleventh sprocket connected to the ninth sprocket, a hydraulic disc brake and a twelfth sprocket.

7. The four-speed DC winch for trailer-mounted drilling rig according to claim 6, characterized in that: The eddy current brake shaft assembly includes a thirteenth sprocket connected to the twelfth sprocket.

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