CN207485380U - Fuel and electric hybrid is without anchor rope workover rig - Google Patents

Abstract

The utility model relates to a novel oil-electric dual-power workover rig without ropes used in oil fields. It meets the purpose of improving the efficiency of workover operation and saving energy and reducing consumption in the oil field. The oil-electric dual-power guyline-free workover rig includes a vehicle-mounted chassis, on which there is a derrick, and a motor, a gearbox, a chain drive, and a winch are arranged in sequence on the vehicle-mounted chassis. Engine input shaft, output shaft, transition shaft and motor input shaft are arranged side by side in the gearbox. The switched reluctance motor is selected as the power source of the electric part, and its wide speed range, good energy-saving effect, small starting current, large starting torque, high-speed characteristics, low-speed and high-torque characteristics, high system efficiency, wide constant functional area, and maintenance Convenience and other advantages to meet the actual working conditions on site.

Description

Oil-electric dual-power workover rig without guyline

technical field

The utility model relates to a novel oil-electric dual-power workover rig without ropes used in oil fields. It meets the purpose of improving the efficiency of workover operation and saving energy and reducing consumption in the oil field.

Background technique

In the prior art: oil field workover rigs are all powered by a vehicle-mounted diesel engine, and drive the drawworks drum through a transmission mechanism, an angle transmission mechanism and a drum reduction mechanism to complete the workover and lifting of the tubing. This vehicle-mounted diesel engine is a machine powered by The equipment has the following problems: serious emission pollution from the diesel engine, low working efficiency of the diesel engine itself, high maintenance costs, and low working efficiency of the transmission system. Although the network power workover rig solves the shortcomings of conventional diesel engines as power equipment, due to its high power, it needs to carry a vehicle-mounted transformer with the vehicle, which increases the time and cost of the transfer site, and each repair Wells require special personnel from the power department to connect to the high-voltage power grid, which increases operational risks.

As the country puts forward higher requirements for energy saving and emission reduction, the technical transformation of the workover rigs powered by traditional engineering diesel engines is carried out to make them more in line with the actual operation conditions of oil fields and national policies.

Utility model content

The purpose of this utility model is to provide a dual-power workover rig that can be selected to complete the workover operation according to the actual working conditions of the work site in view of the above-mentioned shortcomings: the well site that can provide sufficient power on site can realize pure electric operation; In the case of power supply, it can also be switched to a conventional diesel engine to provide operating power, and a gearbox with reasonable speed change is provided to meet the requirements of on-site use.

The technical solution of the utility model is: oil-electric dual-power workover rig without rope, including a vehicle-mounted chassis with a derrick on the vehicle-mounted chassis, which is characterized in that:

An electric motor, a gearbox, a chain drive and a winch are sequentially arranged on the vehicle chassis.

Engine input shaft, output shaft, transition shaft and motor input shaft are arranged side by side in the gearbox.

The engine input shaft has a first gear, a first clutch and a second gear in sequence.

The output shaft has a third gear, a second clutch, a fourth gear, and an output bevel gear in sequence. The third gear meshes with the first gear, the fourth gear meshes with the second gear, and the output bevel gear meshes with the second gear on the second output shaft. Two spaced second bevel gears and third bevel gears mesh, there is a slip gear on the shaft between the second bevel gear and the third bevel gear, the slip gear is connected with the second bevel gear and the third bevel gear respectively, and the second bevel gear is connected with the third bevel gear. The output end of the second output shaft has a sprocket.

There is a transition gear on the transition shaft, and the transition gear meshes with the fourth gear. One end of the transition shaft has an output port, and the output port is connected with the hydraulic pump.

The motor input shaft is provided with a second slip gear and a motor gear, and the motor gear can mesh with the transition gear.

The switched reluctance motor is selected as the power source of the electric part, and its wide speed range, good energy-saving effect, small starting current, large starting torque, high-speed characteristics, low-speed and high-torque characteristics, high system efficiency, wide constant functional area, and maintenance Convenience and other advantages to meet the actual working conditions on site.

Two power input shafts are set on the gearbox, and the input power can be switched, and finally output to the chain, which drives the winch drum to rotate, and finally realizes the hook lifting operation.

The utility model has the advantages of:

(1) Select the switched reluctance motor as the power source of the electric workover rig. Switched reluctance motors have high efficiency within a wide range of speed regulation, and the energy-saving effect is particularly obvious for the working conditions of electric workover rigs where the speed and load often change.

(2) The starting torque of the switched reluctance motor is large, and it can be directly started with a gearbox and a load when the transmission system does not pass through a hydraulic torque converter.

(3) The speed regulation range is wide, and the speed regulation ratio can reach 50:1 according to the conditions of the oil well.

(4) The low-speed operation of the motor has high efficiency and low heat generation, and there is no need for a separate cooling fan.

(5) The power factor of the switched reluctance motor drive system is high, the starting torque of the motor is large, and the starting current is small, which avoids the impact on the power grid caused by frequent commutation.

(6) Rich interfaces and good expandability, it can be connected with digital expansion board, analog expansion board, PLC, touch screen and wireless remote transmission module, etc.

Make full use of the characteristics of the switched reluctance motor, further optimize the transmission system of the whole machine, and place the power input of the motor at the rear end of the torque converter, which greatly improves the efficiency of the mechanical transmission. And the power switching function is set on the power selection box, which also ensures that the transmission system of the traditional diesel engine part remains unchanged.

(7) A newly designed gearbox is adopted. This gearbox can not only meet the switching between oil and electric power, but also adapt the power output to the change of on-site operation torque by changing the speed ratio. The speed adjustment range is wider. Provide power, save the electric hydraulic pump assembly, solve the space on the car, and facilitate the layout of the whole machine.

Embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a schematic structural diagram of the gearbox of the present utility model.

Fig. 2 is a schematic diagram of the cross-sectional structure along B-B in Fig. 1 .

Fig. 3 is the hydraulic principle diagram of the utility model.

Fig. 4 is a schematic structural diagram of the utility model.

FIG. 5 is a schematic top view of the structure in FIG. 4 .

Detailed ways

See Figure 1-5, the names of parts are as follows: engine input shaft 1, first gear 2, first clutch 3, second gear 4, third gear 5, second clutch 6, fourth gear 7, transition gear 8, Motor gear 9, motor input shaft 10, second slip gear 11, vehicle chassis 12, derrick 13, motor 14, gearbox 15, chain drive 16, winch 17, output shaft 18, transition shaft 19, output bevel gear 20, Second output shaft 21, second bevel gear 22, third bevel gear 23, slip gear 24, sprocket 25, automobile engine 28, hydraulic torque converter 29, transfer case 30.

Referring to Figures 3, 4, and 5, the oil-electric dual-power workover rig without guylines includes a vehicle-mounted chassis 12 with a derrick 13 on the vehicle-mounted chassis 12 . A motor 14, a gearbox 15, a chain drive 16, and a winch 17 are sequentially arranged on the vehicle chassis 12.

Referring to Figures 1 and 2, an engine input shaft 1, an output shaft 18, a transition shaft 19, and a motor input shaft 10 are arranged side by side in the gearbox 15.

The engine input shaft 1 is sequentially provided with a first gear 2 (fixedly connected to the shaft), a first clutch 3, and a second gear 4 (connected to the shaft through a bearing, free to rotate);

The output shaft 18 is sequentially provided with a third gear 5 (connected to the shaft through a bearing, free to rotate), a second clutch 6, a fourth gear 7 (fixedly connected to the shaft), an output bevel gear 20, the third gear 5 and the first The gear 2 is meshed, the fourth gear 7 is meshed with the second gear 6, the output bevel gear 20 is meshed with two spaced second bevel gears 22 and the third bevel gear 23 on the second output shaft 21, the second bevel gear 22 and There is a slip gear 24 on the shaft between the third bevel gears 23, the slip gear 24 is connected with the second bevel gear 22 and the third bevel gear 23 respectively by operation, and the output end of the second output shaft 21 has a sprocket 25; The wheel 25 is connected to the winch 17 by a chain.

The transition shaft 19 is provided with a transition gear 8 (constantly rotating), and the transition gear 8 meshes with the fourth gear 7. One end of the transition shaft 19 has an output port, which is connected to a hydraulic pump as a power source for the vehicle hydraulic system.

The motor input shaft 10 is provided with a second slip gear 11 and a motor gear 9 (connected to the shaft through a bearing, free to rotate), and the motor gear 9 can mesh with the transition gear 8 .

Power option:

Oil power: The input shaft 1 of the engine is the oil power input end. When the motor gear 9 is in the disengaged position, the first clutch 3 and the second clutch 6 are respectively engaged by operating the solenoid valve of the hydraulic system, and the bevel gear 20 is output, The power output is to the sprocket 25, thereby providing power to the winch drum.

Electric power: the motor input shaft 10 is the motor input end. When the second slip gear 11 is in the combined position, the motor power passes through the motor gear 9 and is transmitted to the output bevel gear 20 by the transition gear 8, thereby realizing the drive of the winch 17.

Speed change: the first clutch 3 and the second clutch 6 respectively realize the engagement of the two clutches by controlling the electromagnetic reversing valve, so that the two sets of gears are meshed respectively (the first gear 2, the second gear 4, the third gear 5, the second gear Four gears 7), producing two transmission ratio outputs.

With pump: Since the transition gear 8 is a constant-rotating gear during the switching process of the two powers, an output port is designed on this shaft to drive the hydraulic pump as the power source of the vehicle hydraulic system.

Switching between forward and reverse gears: the output bevel gear 20 (small bevel gear) meshes with the second bevel gear 22 and the third bevel gear 23 (two large bevel gears) at the same time, and is selected by sliding the gear 24 to be respectively connected with the second bevel gear 22, the third bevel gear The third bevel gear 23 is meshed, so as to realize the forward and reverse switching of the output shaft 18 .

The above description is only a specific implementation of the utility model, and various illustrations do not limit the essential content of the utility model.

Claims (1)

1. fuel and electric hybrid is without anchor rope workover rig, including vehicle-mounted chassis（12）, vehicle-mounted chassis（12）On have derrick（13）, feature It is：

Vehicle-mounted chassis（12）On be placed with motor successively（14）, gearbox（15）, chain drive（16）, winch（17）；

Gearbox（15）Interior arranged side by side have engine input shaft（1）, output shaft（18）, transition axis（19）, motor input shaft （10）；First gear is carried on engine input shaft 1 successively（2）, first clutch（3）, second gear（4）；

Output shaft 18（）On successively carry third gear（5）, second clutch（6）, the 4th gear（7）, output bevel gear（20）, Third gear（5）With first gear（2）Engagement, the 4th gear（7）With second gear（4）Engagement, output bevel gear（20）With Two output shafts（21）On two interval the second bevel gears（22）, third bevel gear（23）Engagement, the second bevel gear（22）With Third bevel gear（23）Countershaft on have shifting slide gear（24）, shifting slide gear（24）With the second bevel gear（22）With third bevel gear （23）It connects respectively, the second output shaft（21）Output terminal carries sprocket wheel（25）；Transition axis（19）It is upper to carry transition gear（8）, mistake Cross gear（8）With the 4th gear（7）Engagement, transition axis（19）One end carries delivery outlet, and delivery outlet is connect with hydraulic pump；Motor is defeated Enter axis（10）It is upper to carry the second shifting slide gear（11）, motor gear（9）, motor gear（9）Energy and transition gear（8）Engagement.