CN113307167A

CN113307167A - Multi-motor parallel driving winch

Info

Publication number: CN113307167A
Application number: CN202110520471.5A
Authority: CN
Inventors: 陈洪光; 郭晓晓; 刘植亮; 王鑫; 梁丽芬; 李宏文; 隆美章
Original assignee: Shandong Kerui Oil And Gas Equipment Co ltd
Current assignee: Shandong Kerui Oil And Gas Equipment Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-08-27
Anticipated expiration: 2041-05-13
Also published as: CN113307167B

Abstract

The invention relates to the technical field of well drilling winches in the field of petroleum equipment, in particular to a multi-motor parallel driving winch, which comprises a base, wherein the base is provided with a winch structure and a multi-motor parallel driving structure, the winch structure comprises a winch frame, a roller shaft arranged on the winch frame and a roller taking the roller shaft as a shaft, one end of the roller shaft is provided with a driving section arranged on the outer side of the winch frame, the multi-motor parallel driving structure comprises a driving gear, a plurality of output gears meshed with the driving gear and a multi-motor mounting frame, the output gears are connected with motor output ends on the multi-motor mounting frame, and the roller is rotationally connected with the roller shaft by virtue of the multi-motor parallel driving structure. The invention realizes the requirement of parallel driving of a plurality of high-power motors, reduces the cost and the occupied space, processes and forms the roller on the winch structure at one time, greatly reduces the welding amount, has good centering property in the roller assembling process, convenient position adjustment, no concentrated stress, simple assembling and disassembling process and low production and manufacturing cost.

Description

Multi-motor parallel driving winch

Technical Field

The invention relates to the technical field of well drilling winches in the field of petroleum equipment, in particular to a multi-motor parallel driving winch.

Background

A well drilling winch in the field of petroleum equipment is a core device in well drilling and repairing operation and is divided into a roller part and a driving part. At present, the motor-driven winch generally adopts two modes, including an electric-driven winch which mainly adopts a driving mode of a motor and a reduction gearbox and a direct-driven winch.

The electrically driven winch as shown in fig. 1: the driving mode of a motor and a reduction gearbox is adopted, a multi-gear reduction gearbox or a mode of increasing the power of the motor is usually adopted to realize the matching between the hook load and the hook speed in order to meet the requirements of various working conditions, the transmission chain of the winch is complex, and the overall dimension is large.

Direct drive drawworks as shown in fig. 2: adopt the operation of motor direct drive drum axle, its driving chain is short simple structure, and the energy consumption is low, owing to adopt direct drive, required motor output torque is big, the rotational speed is low, mostly is the permanent-magnet machine of special customization, and the installation accuracy requires highly, receives the motor size to influence this kind of winch power relatively less at present.

Further, the conventional drum shown in fig. 3: the traditional roller body and the connecting disc are connected with the roller shaft in a key connection mode, the connecting disc and the roller body are machined and welded for multiple times, the assembly of the roller shaft and the roller body is high in required precision, the assembly process is complex, the disassembly process is complex, and the machining and manufacturing cost is high.

Disclosure of Invention

Aiming at the problems, the invention provides a multi-motor parallel driving winch, which effectively solves the problems involved in the background technology.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a many motors driving structure that shuts, includes the base, the base is equipped with winch structure and many motors driving structure that shuts, winch structure includes the winch frame, set up the drum shaft on the winch frame and use the drum of drum shaft as the axle, drum shaft one end is equipped with arranges in the drive section in the winch frame outside, many motors driving structure that shuts sets up on the drive section, many motors driving structure that shuts include drive gear, a plurality of with drive gear meshing's output gear, many motor mounting bracket and torque arm support frame, output gear with motor output on many motor mounting bracket is connected, drive gear fixes on the drive section, when motor on the motor mounting bracket drove output gear and rotates, output gear did the drive gear, makes the drum shaft rotate to make the drum realize rotating.

Preferably, the multi-motor mounting rack comprises a fixing sleeve and a fixing frame surrounding the fixing sleeve, the fixing frame is welded on the fixing sleeve and is in rigid connection with the fixing sleeve, a shaft sleeve is arranged between the fixing sleeve and the driving section, and roller bearings fixed in the fixing sleeve are arranged at two ends of the shaft sleeve. The rotation precision and the supporting effect of the driving section are enhanced by arranging the roller bearing.

As optimization, the torque arm support frame is established fixed cover one end, the torque arm support frame includes the torque arm and runs through the pivot of torque arm, the pivot is equipped with joint bearing, joint bearing connects gradually bearing frame and supporting seat, the torque arm both ends all are equipped with the regulation lead screw, the regulation lead screw other end articulates on the base. The torque arm is provided with the knuckle bearing, so that the installation and the positioning are convenient, the positions of the torque arm can be adjusted by the adjusting screw rods at the two ends of the torque arm, and the effect of supporting and preventing the driving section from jumping is achieved.

As optimization, the cylinder both sides all are equipped with the brake disc, still be equipped with on the base and be used for control the hydraulic pressure dish of brake disc is stopped, the hydraulic pressure dish is stopped and is equipped with 2. 2 hydraulic disc is stopped and is controlled 2 brake discs respectively.

Preferably, the roller is a hollow cylinder with connecting holes at two ends, and an expansion sleeve is arranged between the connecting holes and the roller shaft. The roller and the roller shaft are connected in an expansion manner, the roller can be formed in one-step processing mode, the welding amount is greatly reduced, the centering performance in the roller assembling process is good, the relative position of the roller shaft and the roller is convenient to adjust, no concentrated stress exists, the assembling and disassembling processes are simple and convenient, and the production and manufacturing cost is low.

Preferably, the fixing frame comprises a fixing plate with a round hole in the center, the fixing plate is arranged in a manner of being symmetrical about the center of the driving section, the fixing plate is polygonal, the number of the sides of the fixing plate is set according to the number of the needed motors, and the fixing plate is provided with a plurality of supporting plates which are longitudinally distributed and used for fixing the motors on the fixing frame through bolts. The supporting plate is rigidly connected with the fixing plate, and the supporting plate is uniformly arranged on the edge of the fixing plate and used for placing the motors to realize the parallel driving of a plurality of motors.

As an optimization, the outer wall of drive gear and output gear is equipped with the inside sealed guard shield that holds fluid composition, sealed guard shield includes first go-between, second go-between, third go-between and solid fixed ring, between first go-between and the second go-between all be equipped with T type connecting piece between second go-between and the third go-between, T type connecting piece includes supplementary ring, just T type connecting piece both sides all are equipped with the sealing washer, be equipped with between third go-between and the solid fixed ring a plurality of with the through-hole that output gear corresponds, be equipped with the floating seal ring on the through-hole, the floating seal ring outside is equipped with the fixed seal ring, the fixed seal ring passes through the bolt fastening on the motor, first go-between with the junction of drive section is equipped with the sealing washer, sealed guard shield is annotated and is had lubricating oil. The arrangement of the sealing shield reduces high heat generated when the output gear and the driving gear operate, has a certain heat dissipation effect, and simultaneously improves the lubrication degree of the roller bearing on the driving section; the sealing protective cover is designed into a split type detachable structure, and is connected with the joint of the motor in a floating sealing mode, so that the sealing performance is ensured.

Preferably, a bearing is arranged at the joint of the roller shaft and the winch frame.

The invention has the beneficial effects that: compared with the prior art, the multi-motor parallel driving winch provided by the invention has the following advantages:

1. according to the invention, the combination of the multi-motor parallel driving structure and the winch structure enables the driving gear to drive the driving section to rotate under the action of the output gear, and the parallel driving requirement of a plurality of high-power motors can be met without other transmission auxiliary parts such as a reduction box, a coupler and a clutch, so that the use cost is reduced, and the occupied space is greatly reduced;

2. the multi-motor parallel driving structure takes a driving section as an installation basis, an independent motor installation sledge seat is not needed, and the motors are uniformly arranged on the fixed seat by arranging the motor parallel driving device integrated with the fixed sleeve and using bolts, so that not only is the parallel driving of a plurality of motors realized, but also the requirement of deformation on the installation precision of an output gear is reduced, the overall applicability is strong, and one or more motors can be installed or selected to work according to the working condition load of a driving shaft;

3. the sealing shields filled with lubricating oil on the driving gear and the output gear reduce high heat generated during the operation of the output gear and the driving gear, have a certain heat dissipation effect, and simultaneously improve the lubrication degree of the roller bearing on the driving section; the sealing shield is of a split type detachable structure, and the joint of the sealing shield and the motor is connected in a floating sealing mode, so that the sealing performance is ensured;

4. the multi-motor parallel operation mounting structure is matched with the torque arm support frame, the torque arm support frame is provided with the knuckle bearing, the mounting and the positioning are convenient, the adjusting screw rods at the two ends of the torque arm can adjust the position of the torque arm, and the effect of supporting and preventing the driving section from jumping is achieved;

5. the roller and the roller shaft are connected in an expansion manner, the roller can be formed in one-step processing mode, the welding amount is greatly reduced, the centering performance in the roller assembling process is good, the relative position of the roller shaft and the roller is convenient to adjust, no concentrated stress exists, the assembling and disassembling processes are simple and convenient, and the production and manufacturing cost is low.

Drawings

FIG. 1 is a schematic view of a prior art electric winch;

wherein: 101. the device comprises a motor 102, a coupler 103, a reduction gearbox 104, a winch frame 105 and a roller.

FIG. 2 is a schematic view of a direct drive winch of the prior art;

wherein: 201. the winch frame 202, the roller 203, the roller shaft 204 and the permanent magnet direct drive motor.

FIG. 3 is a schematic view of a conventional drum structure;

wherein: 301. and a connecting disc 302 and a connecting key.

FIG. 4 is a schematic structural view of the present invention;

FIG. 5 is a schematic cross-sectional front view of the present invention;

FIG. 6 is an enlarged view of part A of FIG. 5;

FIG. 7 is an enlarged view of the portion B in FIG. 5;

wherein: 1. base, 2, winch structure, 3, motor vehicle drive structure, 4, winch frame, 5, drum axle, 6, drum, 7, brake disc, 8, hydraulic disc brake, 9, drive section, 10, drive gear, 11, output gear, 12, many motor mounting bracket, 13, fixed cover, 14, mount, 15, axle sleeve, 16, roller bearing, 17, torque arm support frame, 18, torque arm, 19, pivot, 20, joint bearing, 21, bearing frame, 22, supporting seat, 23, adjusting screw, 24, the cover that expands, 25, fixed plate, 26, layer board, 27, sealed guard shield, 28, first connecting ring, 29, second connecting ring, 30, third connecting ring, 31, fixed ring, 32, T type connecting piece, 33, supplementary ring, 34, sealing washer, 35, through-hole, 36, floating seal ring, 37, fixed seal ring, 38, bearing.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of the invention to those skilled in the art, and the present invention will only be defined by the appended claims. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. It will be understood that when an element such as a layer, region or substrate is referred to as being "formed on" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly formed on" or "directly disposed on" another element, there are no intervening elements present.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 4-5, in an embodiment, a multi-motor parallel driving winch includes a base 1, the base 1 is provided with a winch structure 2 and a multi-motor parallel driving structure 3, the winch structure 2 includes a winch frame 4, a drum shaft 5 disposed on the winch frame 4, and a drum 6 taking the drum shaft 5 as a shaft, the drum 6 is a hollow cylinder with connecting holes at two ends, an expansion sleeve 24 is disposed between the connecting hole and the drum shaft 5, a manner of expansion connection is adopted, centering performance is good in a drum assembling process, relative positions of the drum shaft 5 and the drum 6 are conveniently adjusted, no stress is concentrated, assembling and disassembling processes are simple and convenient, brake discs 7 are disposed on two sides of the drum 6, a hydraulic disc brake 8 for controlling the brake discs 7 is further disposed on the base 1, the hydraulic disc brake 8 is used for controlling braking of the

drum

6, and 2 hydraulic disc brakes 8 are disposed, one end of the roller shaft 5 is provided with a driving section 9 arranged on the outer side of the winch frame 4, the roller shaft 5 and the driving section 9 are arranged into a whole, the multi-motor parallel operation driving structure 3 is arranged on the driving section 9, the multi-motor parallel operation driving structure 3 comprises a driving gear 10, a plurality of output gears 11 meshed with the driving gear 10, a multi-motor mounting frame 12 and a torque arm supporting frame 17, the multi-motor mounting frame 12 comprises a fixed sleeve 13 and a fixed frame 14 surrounding the fixed sleeve 13, a shaft sleeve 15 is arranged between the fixed sleeve 13 and the driving section 9, and two ends of the shaft sleeve 15 are provided with roller bearings 16 fixed in the fixed sleeve 13; the rotation of the driving section 9 is more flexible through the roller bearing 16, the output gear 11 is connected with the output end of the motor on the multi-motor mounting rack 12, the output gear 11 drives the driving gear 10 to rotate the driving section 9, and therefore the multi-motor parallel operation mechanism 3 is used for driving the roller 6 to rotate along the roller shaft 5; and a bearing 38 is arranged at the joint of the roller shaft 5 and the winch frame 4.

As shown in fig. 4-5, the torque arm support 17 is disposed at one end of the fixed sleeve 13, the torque arm support 17 includes a torque arm 18 and a rotating shaft 19 penetrating through the torque arm 18, the rotating shaft 19 is provided with a joint bearing 20, the joint bearing 20 is sequentially connected to a bearing seat 21 and a supporting seat 22, two ends of the torque arm 18 are both provided with adjusting screws 23, and the other end of each adjusting screw 23 is hinged to the base 1; the fixing frame 14 comprises a fixing plate 25 with a round hole in the center, the fixing plate 25 is arranged in a central symmetry manner with the driving section 9, the fixing plate 25 is polygonal, and a plurality of supporting plates 26 which are longitudinally distributed are arranged on the fixing plate 25 and used for fixing the motor on the fixing frame 14 through bolts. The torque arm 18 is provided with a joint bearing 20, so that the mounting and positioning are convenient, and the adjusting screw rods 23 at the two ends of the torque arm 18 can adjust the balance position of the torque arm 18 and play a role in supporting and preventing the driving section 9 from jumping.

As shown in fig. 5 to 7, the outer walls of the driving gear 10 and the output gear 11 are provided with a sealing shield 27 containing a fluid composition therein, the sealing shield 27 includes a first connection ring 28, a second connection ring 29, a third connection ring 30 and a fixing ring 31, T-shaped connectors 32 are respectively provided between the first connection ring 28 and the second connection ring 29 and between the second connection ring 29 and the third connection ring 30, the T-shaped connectors 32 include auxiliary rings 33, sealing rings 34 are respectively provided on both sides of the T-shaped connectors 32, a plurality of through holes 35 corresponding to the output gear 11 are provided between the third connection ring 30 and the fixing ring 31, floating sealing rings 36 are provided on the through holes 35, fixed sealing rings 37 are provided on the outer sides of the floating sealing rings 36, and the fixed sealing rings 37 are fixed on the motor by bolts; a sealing ring 34 is arranged at the joint of the first connecting ring 28 and the driving section 9; lubricating oil is injected into the seal shroud 27. The sealing protective cover 27 filled with lubricating oil on the driving gear 10 and the output gear 11 reduces high heat generated when the output gear 11 and the driving gear 10 run, has a certain heat dissipation effect, and simultaneously improves the lubrication degree of the roller bearing 16 on the driving section 9; the sealing protective cover 27 is designed into a split type detachable structure, and is connected with the motor joint in a floating sealing mode, so that the sealing performance is ensured.

The working principle is as follows: when the multi-motor parallel driving winch is used, the multi-motor parallel driving structure 3 is started, the output gear 11 drives the driving gear 10 to rotate through the driving of the motor, and the driving section 9 and the roller shaft 5 rotate together to drive the roller 6 to rotate according to the direction of the roller shaft 5.

The above embodiments are only specific examples of the present invention, and the protection scope of the present invention includes but is not limited to the product forms and styles of the above embodiments, and any suitable changes or modifications made by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.

Claims

1. The multi-motor parallel driving winch is characterized by comprising a base (1), wherein the base (1) is provided with a winch structure (2) and a multi-motor parallel driving structure (3), the winch structure (2) comprises a winch frame (4), a roller shaft (5) arranged on the winch frame (4) and a roller (6) taking the roller shaft (5) as a shaft, one end of the roller shaft (5) is provided with a driving section (9) positioned on the outer side of the winch frame (4), the multi-motor parallel driving structure (3) is arranged on the driving section (9), the multi-motor parallel driving structure (3) comprises a driving gear (10), a plurality of output gears (11) meshed with the driving gear (10), a plurality of motor mounting frames (12) and a torque arm supporting frame (17), the output gears (11) are connected with motor output ends on the multi-motor mounting frames (12), the multi-motor parallel operation mechanism (3) is used for driving the roller (6) to rotate along the roller shaft (5).

2. The multi-motor parallel-drive winch according to claim 1, wherein the multi-motor mounting bracket (12) comprises a fixing sleeve (13) and a fixing bracket (14) surrounding the fixing sleeve (13), a shaft sleeve (15) is arranged between the fixing sleeve (13) and the driving section (9), and two ends of the shaft sleeve (15) are provided with roller bearings (16) fixed in the fixing sleeve (13).

3. The multi-motor parallel driving winch according to claim 2, wherein the torque arm supporting frame (17) is arranged at one end of the fixed sleeve (13), the torque arm supporting frame (17) comprises a torque arm (18) and a rotating shaft (19) penetrating through the torque arm (18), the rotating shaft (19) is provided with a joint bearing (20), the joint bearing (20) is sequentially connected with a bearing seat (21) and a supporting seat (22), two ends of the torque arm (18) are respectively provided with an adjusting lead screw (23), and the other end of the adjusting lead screw (23) is hinged to the base (1).

4. The multi-motor parallel driving winch according to claim 1, wherein brake discs (7) are arranged on both sides of the drum (6), and a hydraulic disc brake (8) for controlling the brake discs (7) is further arranged on the base (1).

5. The multi-motor parallel driving winch according to claim 1, wherein the drum (6) is a hollow cylinder provided with connecting holes at both ends, and an expansion sleeve (24) is provided between the connecting holes and the drum shaft (5).

6. The multi-motor parallel driving winch according to claim 3, wherein the fixing frame (14) comprises a fixing plate (25) with a circular hole in the center, the fixing plate (25) is symmetrically arranged with respect to the center of the driving section (9), the fixing plate (25) is polygonal, a plurality of supporting plates (26) are longitudinally distributed on the fixing plate (25), and the supporting plates (26) are used for fixing the motors on the fixing frame (14) through bolts.

7. The multi-motor parallel-drive winch according to claim 1, wherein the outer walls of the driving gear (10) and the output gear (11) are provided with a sealing shield (27) containing a fluid composition therein, the sealing shield (27) comprises a first connecting ring (28), a second connecting ring (29), a third connecting ring (30) and a fixing ring (31), T-shaped connecting members (32) are arranged between the first connecting ring (28) and the second connecting ring (29) and between the second connecting ring (29) and the third connecting ring (30), the T-shaped connecting members (32) comprise auxiliary rings (33), sealing rings (34) are arranged on both sides of the T-shaped connecting members (32), a plurality of through holes (35) corresponding to the output gear (11) are arranged between the third connecting ring (30) and the fixing ring (31), and floating sealing rings (36) are arranged on the through holes (35), the outer side of the floating sealing ring (36) is provided with a fixed sealing ring (37), and the fixed sealing ring (37) is fixed on the motor through a bolt.

8. The multi-motor parallel driving winch according to claim 1, wherein a bearing (38) is provided at the connection of the drum shaft (5) and the winch frame (4).

9. The multiple motor parallel drive winch according to claim 4, characterized in that there are 2 hydraulic disc brakes (8).

10. The multi-motor parallel-drive winch according to claim 6, characterized in that a sealing ring is provided at the connection of the first connecting ring (28) and the drive section (9).

11. The multi-motor parallel-drive winch according to claim 6, characterized in that the sealing shield (27) is impregnated with lubricating oil.