CN211733698U

CN211733698U - Novel AC frequency conversion winch

Info

Publication number: CN211733698U
Application number: CN201922246696.7U
Authority: CN
Inventors: 张鹏程; 胡秀辉; 刘永超; 商国伟; 孙绍成; 郭盟盟
Original assignee: Shandong Kerui Machinery Manufacturing Co Ltd
Current assignee: Shandong Kerui Machinery Manufacturing Co Ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-10-23
Anticipated expiration: 2029-12-16

Abstract

The utility model discloses a novel AC frequency conversion winch includes lubricated pump station, the dish device of stopping, the reducing gear box, main motor, the drum shaft assembly, the winch frame, the drum shaft assembly includes cylinder and roller bearing, the dish device of stopping includes brake disc and brake power device, roller bearing and cylinder both ends are located to the brake disc, with roller bearing swing joint, main brake adopts hydraulic disc to stop, auxiliary brake is main motor dynamic braking, be used for stopping and emergency brake, the dynamic braking realizes the rig hook function of hovering, the brake structure is by driller control winch handle amplitude of oscillation, alright realize cylinder rotational speed control, easy operation, few mechanical mechanism of main brake dynamic friction is difficult for appearing wearing and tearing, reduce the maintenance number of times of equipment, the input shaft coupling is connected with the motor, the output shaft coupling is connected with the drum shaft assembly, the transmission structure is simpler, lubricated pump station, the dish device of stopping, the main motor, The reduction box, the main motor and the roller shaft assembly are arranged on the winch frame, so that the maintenance of a lubricating pump station is facilitated.

Description

Novel AC frequency conversion winch

Technical Field

The utility model relates to an oil drilling equipment technical field, concretely relates to novel exchange frequency conversion winch for the derrick transports the formula rig occasion that moves soon upright.

Background

With the continuous development of the world oil exploitation technology, the oil exploitation is more systematized, standardized and humanized, and the performance requirement on an oil drilling machine is higher and higher.

The winch is a core component of the drilling machine, and is responsible for various operations such as drilling tool setting, casing pipe setting, bit pressure control, accident handling, core barrel extraction and the like in the oil drilling process, and the quality and technical level of the oil drilling machine are determined by the design and the working performance of the winch. The transmission case of the conventional alternating-current variable-frequency winch is in a double-gear form, and the winch is controlled to operate by an air control system consisting of a valve island case, an air cylinder and the like; the independent automatic bit feeding unit comprises an automatic bit feeding motor, an automatic bit feeding reduction box, a push disc clutch and other accessories; the lubricating system is positioned at the lower part of the winch base; the control system is complex when the winch operates; the main brake is a mechanical belt brake, and the auxiliary brake is an electromagnetic eddy current brake: when the winch brakes, the auxiliary brake reduces the rotation speed of the winch drum through the SCR electric control system according to the electromagnetic induction principle, and then the main brake is started to completely brake the winch through a manual or pneumatic control system.

The existing winch has the following defects: (1) the winch has heavier overall weight and higher production and manufacturing cost; (2) the control system is complex, workers are required to be familiar with the drilling working conditions, and the technical operation is skilled; (3) the dynamic friction condition of a main brake (mechanical brake) is frequent, and a mechanical mechanism is easy to wear; (4) the lubricating system is located on the lower portion of the winch base and is inconvenient to install and maintain.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel interchange frequency conversion winch to solve the technical problem that the winch transmission is complicated, the brake is easy bad and lubricating system is not good to be maintained.

The utility model provides a technical scheme that its technical problem adopted is:

a novel alternating current variable frequency winch comprises a lubricating pump station, a disc brake device, a reduction gearbox, a main motor, a roller shaft assembly and a winch frame; the roller shaft assembly comprises a roller and a rolling shaft, the roller is sleeved on the outer side of the rolling shaft and is movably connected with the rolling shaft; brake discs are arranged at two ends of the roller and are movably connected with the roller, the brake discs are connected with a brake power device, the brake power device provides power for the brake discs for braking, the brake power device is not arranged on the novel alternating current variable frequency winch and is an independent device, and the brake discs are arranged at two ends of the roller and are movably connected with the roller; the reduction gearbox is provided with three shafts, the shafts at two ends are respectively connected with an input coupling and an output coupling, the input coupling is connected with the main motor, and the output coupling is connected with the roller shaft assembly; a lubricating oil pool is arranged inside the reduction gearbox, and the lubricating pump station is connected with the lubricating oil pool; the lubricating pump station, the disc brake device, the reduction gearbox, the main motor and the roller shaft assembly are arranged on the winch frame.

Preferably, the reduction gearbox is a single-gear reduction gearbox.

Preferably, an intermediate shaft of the reduction gearbox is connected with a winch encoder.

Preferably, the disc brake device is a hydraulic disc brake device.

Preferably, an overwinding anti-collision valve is arranged above the roller shaft assembly and connected with the brake power device.

Preferably, the input coupling is a rzeppa universal coupling.

Preferably, the novel alternating current variable frequency winch is provided with a vacuum fluorescent display screen VFD panel control for controlling the main motor.

Compared with the prior art, the beneficial effect of this application is:

the utility model relates to an AC frequency conversion winch, including lubricating pump station, the dish device of stopping, reducing gear box, main motor, drum shaft assembly, winch frame, drum shaft assembly includes cylinder and roller bearing, and the dish device of stopping includes brake disc and brake power device, and the brake disc sets up in roller bearing and cylinder both ends, with roller bearing swing joint, and the jackshaft of reducing gear box is connected with the winch encoder, and the input shaft coupling is connected with main motor, and the output shaft coupling is connected with drum shaft assembly, and transmission structure is simpler; an overwinding anti-collision valve is arranged above the roller shaft assembly, so that the winding height of the steel wire rope is effectively prevented from exceeding a set height; a lubricating oil pool is arranged in the reduction gearbox and connected with a lubricating pump station, and the lubricating pump station, the disc brake device, the reduction gearbox, the main motor and the roller shaft assembly are arranged on the winch frame, so that the maintenance of the lubricating pump station is facilitated; the main brake of the novel alternating-current variable-frequency winch adopts a hydraulic disc brake, the auxiliary brake is a main motor energy consumption brake, the energy consumption brake can realize the function of suspending the hook of the drilling machine, the main brake is used for stopping and emergently braking, the brake structure only needs a driller to control the swing amplitude of the winch handle, the operation can be controlled by the rotating speed of the roller, the abrasion of a mechanical mechanism is not easy to occur due to the reduction of the dynamic friction of the main brake, and the maintenance frequency of equipment is reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the drum shaft assembly of the present invention;

fig. 3 is a structure enlarged view of the overwinding anti-collision valve of the utility model.

The device comprises a lubricating pump station 1, a lubricating pump station 2, a roller shaft assembly 21, a roller 22, a rolling shaft 3, an input coupler 4, an overwinding anti-collision valve 5, a winch encoder 6, a brake disc 7, a winch frame 8, an output coupler 9, a reduction gearbox 10 and a main motor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The present invention will be further described with reference to the following specific embodiments and accompanying drawings.

Example 1:

as shown in fig. 1-3, the utility model relates to a novel ac frequency conversion winch, which comprises a lubrication pump station 1, a disc brake device, a reduction box 9, a main motor 10, a roller shaft assembly 2 and a winch frame 7; the reduction box 9 is a single-gear reduction box with single-speed ratio and two-stage gear transmission, and is provided with three shafts, the shafts at two ends are respectively connected with an input coupler 3 and an output coupler 8, wherein the input coupler 3 is a ball cage type universal coupler and is connected with a main motor 10, the output coupler 8 is connected with a roller shaft assembly 2, and the forward and reverse rotation of a driving roller 21 is steplessly regulated in speed, so that the upward lifting and downward putting of the traveling block are realized; a lubricating oil pool is arranged in the reduction gearbox 9, and the lubricating pump station 1 is connected with the lubricating oil pool to forcibly lubricate the gear of the reduction gearbox; an overwinding anti-collision valve 4 is arranged above the roller shaft assembly 2 and is used for being touched by a steel wire rope, reversing of the anti-collision overwinding valve 4 is realized, and braking is provided through a braking power device to start braking; the brake power device is commonly provided with a hydraulic brake device and a pneumatic brake device, wherein the hydraulic brake power device is also called a disc brake and is applied to a hydraulic actuating mechanism of a mine winch brake system, a rear-mounted oil cylinder is mostly adopted at present and is called a normally closed rear-mounted oil cylinder disc brake, when a winch is started, a hydraulic station outputs pressure oil to open the brake, the winch starts to work, when the hydraulic station raises or lowers the pressure according to working conditions during working and braking, the brake can provide a brake force opposite to the pressure, when the hydraulic station returns to 0 pressure in an accident state, and the brake stops the winch in the shortest time by using the maximum brake force; the lubricating pump station 1, the disc brake device, the reduction gearbox 9, the main motor 10 and the roller shaft assembly 2 are arranged on the winch frame 7, all unit parts are integrally arranged on the winch frame 7, the modularization degree is high, and the moving, the transportation and the storage are convenient; the main motor 10 of this winch is AC variable frequency motor, and the automatic bit feeding of winch is realized through VFD panel control main motor 10, and wherein main motor 10 is AC variable frequency motor, and it is equipped with the braking that the heavy object load was realized to intermittent type nature operating mode, and the below picture is winch main motor basic parameter and winch respectively and plays to rise the performance, and the below table is the main motor basic parameter of optimum winch respectively, each operating mode of main motor plays to rise the performance under 10 ropes, and following data is by the utility model discloses main motor 10's relevant parameter is through formula calculation and experimental gained. The utility model discloses realize the high utilization ratio of motor power, the winch simple structure of design, with low costs can satisfy the operation requirement in areas such as desert, plain.

Optimizing basic parameters of main motor of winch

Rated power 1500hp/1118kW	Rated voltage 577V
		Rated torque11920N·m	Rated current 1360A
Rated rotating speed of 900r/min	Intermittent torque 16270N m
		Constant work maximum rotating speed 1200r/min	Intermittent operating mode current 1740A
Intermittent working condition power 1830hp/1365kW

Hoisting performance of winch

Lifting performance of each working condition of main motor under 10 ropes

As can be seen from the structural schematic diagram of the roller shaft assembly shown in fig. 2, the roller shaft assembly 2 includes a roller 21 and a roller 22, the roller 21 is sleeved outside the roller 22, and the two are movably connected; the disc brake device comprises a brake disc 6, the brake disc 6 is connected with a brake power device, the brake disc 6 is arranged at two ends of a roller 21 and movably connected with a rolling shaft 22, double-fold line grooves Lebus grooves suitable for a phi 35mm steel wire rope are formed in the roller 21, the steel wire rope can be arranged regularly, extrusion abrasion among the steel wire ropes is reduced, the service life of the steel wire rope is prolonged, when a winch brakes, the roller 21 drives a rotor of a main motor 10 to rotate reversely, induced current is generated by cutting induced electromotive force, the induced current is dissipated to a brake resistor arranged in a direct current loop, regenerated electric energy fed back to a direct current bus by the main motor is converted into heat energy to be consumed, the brake unit conducts the brake resistor according to the condition of the direct current voltage, and overvoltage faults caused by accumulation of feedback energy are avoided.

The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but is not limited to the forms and styles of the above embodiments, 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. A novel alternating current variable frequency winch is characterized by comprising a lubricating pump station (1), a brake disc (6), a reduction box (9), a main motor (10), a roller shaft assembly (2) and a winch frame (7);

the roller shaft assembly (2) comprises a roller (21) and a roller (22), the roller (21) is sleeved on the outer side of the roller (22), and the roller (21) and the roller are movably connected;

the disc brake device comprises a brake disc (6) and a brake power device; brake discs (6) are arranged at two ends of the roller (21), the brake discs (6) are movably connected with the rolling shaft (22), and the brake discs (6) are connected with a brake power device;

the reduction gearbox (9) is provided with three shafts, the shafts at two ends are respectively connected with an input coupling (3) and an output coupling (8), the middle shaft is connected with a winch encoder (5), the input coupling (3) is connected with the main motor (10), and the output coupling (8) is connected with the drum shaft assembly (2);

the reduction gearbox (9) is connected with the lubricating pump station (1);

the lubricating pump station (1), the reduction gearbox (9), the main motor (10) and the roller shaft assembly (2) are arranged on the winch frame (7).

2. The novel AC variable frequency winch according to claim 1, wherein the reduction gearbox (9) is a single-gear reduction gearbox.

3. The novel alternating-current variable-frequency winch according to claim 2, wherein a lubricating oil pool is arranged inside the reduction gearbox (9), and the lubricating pump station (1) is connected with the lubricating oil pool.

4. The novel AC variable frequency winch according to claim 3, wherein said disc brake device is a hydraulic disc brake device.

5. The novel alternating-current variable-frequency winch according to claim 4, wherein an overwinding anti-collision valve (4) is arranged above the roller shaft assembly (2), and the overwinding anti-collision valve (4) is connected with the braking power device.

6. The new ac frequency conversion winch according to claim 3, characterized in that said input coupling (3) is a rzeppa universal coupling.