Multi-power drive integrated winch for oil drilling and workover

Abstract

The utility model discloses a kind of multi-power drive integrated winch for petroleum drilling, well repair, including winch base, and multiple power drive mechanism and cooling system are distributed with left and right on winch base, the multiple power drive mechanism includes multiple power motor gear box assembly, resultant force reduction gearbox, drum shaft assembly, bearing seat, brake assembly and drive control cabinet;The output shaft of the multiple power motor gear box assembly is connected with the input shaft of resultant force reduction gearbox, and the output shaft of resultant force reduction gearbox is axially integrated with one end of drum shaft assembly butt joint, brake assembly is connected to the other end of drum shaft assembly, and drum shaft assembly is installed on winch base by bearing seat, and drive control cabinet controls multiple power motor gear box assembly operation;The cooling system includes heat dissipation system, and heat dissipation system is integrated on winch base;The device can realize purchase cost is low, operating efficiency is high, small, light in weight, motor gear box assembly standardization, power redundancy, easy maintenance, easy maintenance, convenient transportation etc.

Description

Technical Field

[0001] This utility model relates to the field of oil drilling equipment technology, and in particular to a multi-power drive integrated winch for oil drilling and well workover. Background Technology

[0002] In China's petroleum industry, electric drilling rig winches typically use high-power, medium-to-low-speed motors. These motors are reduced in speed by a single or two-speed heavy-duty gearbox, then connected to the drum shaft via a gear coupling, thus driving the winch. Traditional motors have low operating efficiency, especially under low load conditions. The heavy-duty gearbox has few gears and is difficult to operate; drillers generally do not shift gears during operation. The winch operating handle has a short travel distance, and even small adjustments can result in significant speed variations, leading to inaccurate speed control during hoisting and lowering. In summary, the disadvantages of traditional electric drilling rig winches include high purchase cost, low operating efficiency, low control precision, large size and weight, inconvenient transportation, high spare parts cost, and difficulty in maintenance.

[0003] Furthermore, existing winches often use variable frequency motors for drive, with a gear reducer installed on one side of the winch's width. The gear reducer connects to both the variable frequency motor and the drum shaft, and typically houses a multi-shaft reduction gear assembly. The automatic drilling device and the variable frequency motor are distributed along the length of the gear reducer at both ends and along its width on both sides, each connected to the gear reducer via an independent input shaft. This structure further increases the winch's width, resulting in an excessively wide overall winch. During transport, the winch is usually mounted as a whole on the chassis of a drilling rig. If the winch's overall width exceeds the vehicle's loading and transport width limits, the excess portion must be disassembled and transported separately, then reassembled upon arrival at the work site. This increases the workload and cost of installation, disassembly, and hoisting, reduces the portability and ease of installation of the oil drilling rig, and increases installation costs. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-power drive integrated winch for oil drilling and well workover, which can achieve low purchase cost, high operating efficiency, small size, light weight, high control precision, power redundancy, easy maintenance, easy upkeep, and convenient transportation.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A multi-power drive integrated winch for oil drilling and well workover includes a winch base. A multi-power drive mechanism and a cooling system are distributed on the left and right sides of the winch base. The multi-power drive mechanism includes a multi-power motor shift box assembly, a reduction gearbox, a drum shaft assembly, a winch frame, a bearing housing, a brake assembly, and a drive control cabinet. The winch frame is mounted on the left side of the winch base. A left bearing is located on the left side of the winch frame, supporting the left end of the drum shaft assembly. The left end of the drum shaft assembly is connected to the brake assembly. A drum is fitted onto the middle section of the drum shaft assembly. The right end of the shaft assembly passes through the gearbox and is supported by the right bearing via a bearing housing. The drive control cabinet is electrically controlled by a multi-power motor shift box assembly. Multiple output ends of the multi-power motor shift box assembly are connected to multiple power input shafts on the gearbox. The resultant output shaft of the gearbox serves as the right end of the drum shaft assembly. The drive control cabinet and cooling system are located at the right end of the winch base. The cooling system piping is connected to the multi-power drive mechanism. When used for oil drilling, the gearbox is a resultant gearbox; when used for well workover, the gearbox is a parallel shaft gearbox.

[0007] The cooling system includes a heat dissipation system, which is integrated into the winch base.

[0008] The winch frame includes a right side plate, a left side plate, and a drum guard plate. The right side plate and the left side plate are erected on the winch base. The drum guard plate is located between the left side plate and the right side plate and is located on the drum. A left bearing is installed on the left side plate, and a through hole is provided on the right side plate. The left end of the drum shaft assembly passes through the left bearing and is mounted thereon, and the right end of the drum shaft assembly passes through the through hole.

[0009] The aforementioned combined-force reduction gearbox or parallel-shaft reduction gearbox includes an input gear shaft and input gear assembly, a housing, a sealing ring, and an output gear shaft and output gear assembly. Multiple input gear shafts are evenly distributed around the circumference of the output gear shaft. These input gear shafts are connected to multiple motor output shafts via couplings. Multiple input gears are meshed with the output gear assembly. The output gear shaft is part of a roller shaft assembly. The input gear shaft and output gear shaft are sealed to the housing via sealing rings. The housing is formed by a reduction gearbox side plate located on the right side of a right side plate, with the right side plate and the reduction gearbox side plate forming the reduction gearbox cavity. The parallel-shaft reduction gearbox also includes an idler gear located between the input gear and the output gear, meshing with each other.

[0010] The multi-power motor shift box assembly includes multiple motors, a shift box, and a coupling. The output of the motor is output through the shift box and then connected to the input gear shaft of the gearbox through the coupling. The motor housing is provided with a cooling water inlet and a cooling water outlet, which are connected to the circulating water of the cooling system.

[0011] The multi-power motor shift box assembly is distributed on one side or evenly distributed on both sides of the combined force reduction box.

[0012] The right bearing and bearing housing are located on the side plate of the gearbox or independently on the right end of the drum shaft.

[0013] The roller shaft and output gear shaft are integrated into a single unit.

[0014] The braking assembly uses either a push-disc air brake or a hydraulic disc brake.

[0015] The aforementioned heat dissipation system employs water cooling and fan cooling for temperature reduction.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] 1) The winch drum shaft and the output shaft of the gearbox share a single drive shaft, resulting in high transmission efficiency, compact structure, small size, and a weight reduction of more than 30% compared to traditional winches. The winch frame, drum shaft assembly, combined gearbox, multi-power drive mechanism, drive control cabinet, and cooling system are all integrated and installed on the winch base, making it small in size and easy to transport as a whole.

[0018] 2) The combined force reduction gearbox or parallel shaft reduction gearbox has multiple power input ends on both sides of the input shaft, making full use of space. It can use multiple small-power high-speed automotive-grade permanent magnet motors and multiple gearboxes to achieve high power and high torque output. The permanent magnet motor has high operating efficiency.

[0019] The multi-speed control allows the winch to operate at high speed at the motor's rated speed. At the same time, the range of speeds corresponding to the driller's operating handle stroke is reduced, so the speed change caused by the same amount of handle operation is small, thus achieving precise control.

[0020] 4) The winch is driven by multiple motors and gearboxes. If one motor or gearbox fails, the other motors can work normally without affecting the drilling operation. The winch can be replaced or repaired after the operation is completed.

[0021] 5) For different specifications of work machines, different numbers of the same model of motors and multiple gearboxes are used to match them, which has good versatility, low motor power, low price, and significantly reduces spare parts costs.

[0022] 6) For workover rigs, the winch drum shaft and parallel shaft reducer share a single drive shaft, resulting in high transmission efficiency, compact structure, small size, and a weight reduction of over 30% compared to traditional workover winches. The winch frame, drum shaft assembly, combined gearbox, motor multi-gear box, drive control cabinet, and cooling system are all integrated and installed on the workover rig. It adopts a low-power, high-speed automotive-grade permanent magnet motor and multi-gear box, achieving high-speed low-torque or low-speed high-torque output through the parallel shaft reducer. The permanent magnet motor has high operating efficiency. With multi-gear control, the winch can be operated at high speed at the motor's rated speed. At the same time, the speed range corresponding to the driller's operating handle stroke is reduced, so the speed change caused by the same amount of handle operation is small, thus achieving precise control. Attached Figure Description

[0023] Figure 1 This is a schematic axonometric view of the winch structure for oil drilling according to this utility model;

[0024] Figure 2 For the present utility model Figure 1 The top view shown;

[0025] Figure 3 This is a schematic axonometric view of the bearing housing mounting method 2 of this utility model;

[0026] Figure 4 This is a top view of the bearing housing mounting method 2 of this utility model;

[0027] Figure 5 This is a schematic diagram of the distribution structure of this utility model. Figure 1 ;

[0028] Figure 6 This is a schematic diagram of the structure of the resultant box cover of this utility model after it is removed;

[0029] Figure 7 This is a schematic diagram of the distribution structure of this utility model. Figure 2 ;

[0030] Figure 8 This is a schematic diagram of the distribution structure of this utility model. Figure 3 ;

[0031] Figure 9 This is a schematic diagram of the disc brake structure 2 of this utility model;

[0032] Figure 10 This is a schematic diagram of the winch structure for a well workover machine according to the present invention;

[0033] Figure 11 For the present utility model Figure 8 A schematic diagram of a winch with an idler pulley. Detailed Implementation

[0034] like Figure 1-2 and Figure 5-9 As shown, this utility model includes a winch base 1, on which a multi-power drive mechanism and a cooling system 8 are distributed on the left and right sides. The multi-power drive mechanism includes a multi-power motor shift box assembly 4, a reduction gearbox 3, a drum shaft assembly 5, a winch frame 6, a brake assembly 7, and a drive control cabinet 9. The cooling system 8 includes a heat dissipation system, which is integrated on the right end of the winch base 1. The heat dissipation system uses water cooling and fan cooling. Water cooling is used to cool down the multiple motors 4-1 through water cooling circulation, and fan cooling is used to cool down the entire space where the winch is located.

[0035] The winch base 1 is equipped with a winch frame 6 on the left side. A left bearing 2-1 is provided on the left side of the winch frame 6. The left bearing 2-1 supports the left end of the drum shaft assembly 5. The left end of the drum shaft assembly 5 is connected to the brake assembly 7. A drum 5-1 is sleeved on the middle section of the drum shaft assembly 5. The right end of the drum shaft assembly 5 passes through the gearbox 3 and is supported by the right bearing 2-2 through the bearing seat 2-3. The winch frame 6 includes a right side plate 6-1, a left side plate 6-2, and a drum guard plate 6-3. The right side plate 6-1 and left side plate 6-2 are erected on the winch base 1. The drum guard plate 6-3 is located between the left side plate 6-2 and the right side plate 6-1, situated on the drum 5-1. A left bearing 2-1 is mounted on the left side plate 6-2. A through hole is provided on the right side plate 6-1, through which the left end of the drum shaft assembly 5 passes. The right end of the drum shaft assembly 5 passes through the through hole, and is then supported by the right bearing 2-2 and bearing seat 2-3 on the right side. The right bearing 2-2 and bearing seat 2-3 are located on the side plate of the gearbox 3. Figure 3 and 4 As shown, or independently located at the right end of the roller shaft 5-2, such as Figure 1 and 2 As shown.

[0036] The drive control cabinet 9 is electrically controlled multi-power motor shift box assembly 4. Multiple output ends of the multi-power motor shift box assembly 4 are connected to multiple power input shafts on the gearbox 3. The resultant output shaft of the gearbox 3 serves as the right end of the drum shaft assembly 5. The drive control cabinet 9 and the cooling system 8 are located at the right end of the winch base 1. The cooling system 8 is connected to the multi-power drive mechanism.

[0037] When used in oil drilling, the gearbox 3 is a combined gearbox; the combined gearbox includes an input gear shaft and input gear assembly 3-1, a housing 3-2, a sealing ring, and an output gear shaft and output gear assembly 3-3; multiple input gear shafts are distributed around the output gear shaft, and multiple input gear shafts are connected to multiple motor 4-1 output shafts through couplings 4-3; multiple input gears are meshed with the output gear assembly 3-3; the output gear shaft is part of the drum shaft assembly 5; the right bearing 2-2 and bearing seat 2-3 are located on the side plate of the gearbox 3 or independently on the right end of the drum shaft; the input gear shaft and the output gear shaft are sealed to the housing 3-2 by the sealing ring; the housing 3-2 is located on the right side of the right side plate 6-1 by the side plate of the gearbox 3; the right side plate 6-1 and the side plate of the gearbox 3 form the inner cavity of the gearbox 3.

[0038] like Figure 10-11 As shown, when used for well repair, the reduction gearbox 3 is a parallel shaft reduction gearbox 3. The parallel shaft reduction gearbox 3 includes an input gear shaft and input gear assembly 3-1, a housing 3-2, a sealing ring, an output gear shaft and output gear assembly 3-3, and an idler gear 3-4. Multiple input gear shafts are distributed around the output gear shaft through the idler gear 3-4. Multiple input gear shafts are connected to the output shafts of multiple motors 4-1 through couplings 4-3. Multiple input gears are connected to the output gear assembly through the idler gear 3-4. The output gear shaft is part of the roller shaft assembly 5. The input gear shaft and the output gear shaft are sealed to the housing 3-2 by the sealing ring. The housing 3-2 is located on the right side of the right side plate 6-1 by the side plate of the reduction gearbox 3. The right side plate 6-1 and the side plate of the reduction gearbox 3 form the inner cavity of the reduction gearbox 3. Various wheels and wheel assemblies are installed in the inner cavity.

[0039] The multi-power motor shift gearbox assembly 4 includes multiple motors 4-1, a shift gearbox 4-2, and a coupling 4-3. The output of motor 4-1 is output through shift gearbox 4-2, and then connected to the input gear shaft of reduction gearbox 3 through coupling 4-3. Motor 4-1 housing has a cooling water inlet 4-4 and a cooling water outlet 4-5, which are connected to the circulating water of cooling system 8. The multi-power motor shift gearbox assembly 4 is distributed on one side of the combined reduction gearbox or evenly distributed on both sides. The shift gearbox has at least two gears. Motor 2-1 is an automotive-grade high-speed permanent magnet synchronous motor 4-1. Coupling 4-3 can also be replaced by a splined shaft or a shrink sleeve connecting to the input end of the shift gearbox.

[0040] The brake assembly 7 adopts a push-disc air brake, such as Figure 9 As shown, or a hydraulic disc brake.

[0041] like Figure 5 and Figure 6 As shown, the multi-power motor shift box assembly 4 is distributed on one side or evenly distributed on both sides of the gearbox 3.

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0043] This utility model includes a winch base 1, on which a multi-power drive mechanism and a cooling system 8 are distributed on the left and right sides. The multi-power drive mechanism serves as the driving power source for the winch, providing energy to the drilling equipment. The cooling system 8 uses water cooling to cool down the components that generate heat during operation, preventing overheating and ensuring normal operation. Simultaneously, a fan is used to dissipate heat and exhaust air from the surrounding environment.

[0044] like Figure 1 and 2 As shown, this utility model has a roller shaft assembly 5 as the center from left to right. On the roller shaft assembly 5, a brake assembly 7, a left side plate 6-2, a roller 5-1, a right side plate 6-1, a gearbox 3, a right bearing 2-2 seat, and a multi-power motor shift box assembly 4 are installed in sequence.

[0045] Among them, such as Figure 8 As shown, the number of input shafts in the gearbox 3 can be 2-8, and correspondingly, the number of multi-speed gearboxes in motor 2-1 should also be 2-8. The input shafts of the gearbox 3 are distributed around the circumference of the roller shaft 5-2, or they can be evenly distributed on both sides with the roller shaft 5-2 as the center; the multi-power motor shift box assembly 4 can be located on one side of the gearbox 3, or on both sides. Figure 5 and Figure 6 As shown, the multi-power motor shift box assembly 4 and the reduction gearbox 3 can be located at the right end or the left end of the roller shaft assembly 5, and the brake assembly 7 can be located at the corresponding other end.

[0046] Due to the different situations required for oil drilling and well workover, the gearbox 3 can be selected according to different working conditions. When used for oil drilling, the gearbox 3 adopts a combined force gearbox, which has multiple power input ends on both sides of the input shaft, making full use of space. Multiple small-power high-speed permanent magnet motors 4-1 and multiple gearboxes can be used to achieve high power and high torque output, and the permanent magnet motor 4-1 has high operating efficiency. When used for well workover, the gearbox 3 adopts a parallel shaft gearbox 3, which achieves high-speed low torque or low-speed high torque output through deceleration. The permanent magnet motor 4-1 has high operating efficiency.

[0047] Both types of gearboxes 3 include an input gear shaft and input gear assembly 3-1, a housing 3-2, a sealing ring, and an output gear shaft and output gear assembly 3-3. The roller shaft assembly 5 includes a roller 5-1 and a roller shaft 5-2, with the roller 5-1 mounted on the roller shaft 5-2. The roller shaft 5-2 and the output gear shaft 3-3 are integrated into a single unit. The roller shaft 5-2 also serves as the output gear shaft 3-3 of the gearbox 3; both are integrated into a single unit.

[0048] The cooling system employs both water cooling and fan cooling for temperature reduction. The circulating water for water cooling is connected to the motor 2-1 housing, which has a cooling water inlet 4-4 and a cooling water outlet 4-5 for water cooling of the motor 2-1. The fan provides ventilation and heat dissipation to the surrounding environment.

[0049] This utility model uses multiple low-power medium-high speed motors 2-1 as power sources, which are respectively connected to multiple input shafts of the gearbox 3. When the motors 2-1 are energized, they drive the gearbox 4-2 to rotate, which in turn drives the input shaft 3-1 of the gearbox 3 to rotate. The output shaft of the gearbox 3 shares a shaft with the winch drum shaft 5-2, eliminating the need for the traditional coupling 4-3. This results in a compact structure, high efficiency, and light weight. Furthermore, the medium-high speed motors 2-1 and the multi-gearbox can achieve both high-speed output and low-speed high-torque output, allowing the motors 2-1 to operate efficiently while meeting the requirements of the winch.

[0050] This utility model uses multiple small-power motors 2-1 input to a gearbox, replacing the high-power, medium-low speed motors 2-1 and large one-speed or two-speed reduction gearboxes 3 of existing winches with a mechanical structure. For example, a traditional 7000m electric winch requires a rated output torque of about 200,000 Nm and consists of two 800KW medium-low speed AC frequency conversion motors 2-1 and two large two-speed reduction gearboxes 3, connected to both ends of the drum shaft 5-2 through a drum gear coupling 4-3. The total weight is about 20 tons, resulting in high purchase costs. If the technical solution of this utility model is adopted, the 7000m electric drilling rig multi-power winch is assembled with six 300KW permanent magnet synchronous motors 2-1 and gearboxes 4-2, coupled and output through one reduction gearbox 3, directly driving the drum shaft 5-2. The total weight is about 10 tons, significantly reducing the purchase cost. The entire device can output high speed under light load, or output large torque at low speed. It can also keep motor 2-1 always working in the high-efficiency range to meet production requirements. Under low load conditions, the number of motors 2-1 can be redundant to improve efficiency.

[0051] During normal operation, multiple small-power motors 2-1 operate synchronously or some small-power motors 2-1 operate synchronously, depending on the working conditions. The output shaft of each motor 2-1 is connected to the input gear shaft 3-1 inside the reduction gearbox 3 via a shift box 4-2. The input gear shaft 3-1 inside the reduction gearbox 3 is equipped with an input gear assembly 3-13-2. When the output shaft of the motor 2-1 rotates, it drives the input gear on the input gear shaft 3-1 to rotate. The input gear meshes with the output gear, and the synchronous rotation of multiple input gears results in the rotation of the output gear. The output gear and the output gear shaft 3-5 operate as a single unit, and the output gear shaft 3-5 serves as the output shaft of the resultant force box, outputting high-power electrical energy. Simultaneously, the output gear shaft 3-5 is integrated with the roller shaft 5-2. While the output gear shaft 3-5 rotates, the roller shaft 5-2 also rotates, driving the roller 5-1 in a circular motion, thus providing high-power electrical energy to the roller 5-1 to meet its operating requirements. When it is necessary to stop, braking can be applied using the brake assembly 7. During operation, multiple small-power motors 2-1 are controlled synchronously by the drive control cabinet 9 to ensure the normal operation of the output gears. The operation of these multiple small-power motors 2-1 generates a large amount of heat, which is cooled by water cooling and fan cooling provided in this invention.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-power drive integrated winch for oil drilling and well workover, characterized in that: The system includes a winch base, on which a multi-power drive mechanism and a cooling system are distributed on the left and right sides. The multi-power drive mechanism includes a multi-power motor shift box assembly, a gearbox, a drum shaft assembly, a winch frame, a bearing housing, a brake assembly, and a drive control cabinet. The winch frame is mounted on the left side of the winch base, with a left bearing on the left side of the winch frame. The left bearing supports the left end of the drum shaft assembly, which is connected to the brake assembly. A drum is fitted onto the middle section of the drum shaft assembly. The right end of the drum shaft assembly passes through the gearbox and is supported by a right bearing housing. The drive control cabinet electrically controls the multi-power motor shift box assembly. Multiple output ends of the multi-power motor shift box assembly are connected to multiple power input shafts on the gearbox. The resultant output shaft of the gearbox serves as the right end of the drum shaft assembly. The drive control cabinet and cooling system are located at the right end of the winch base, with cooling system piping connected to the multi-power drive mechanism. When used for oil drilling, a resultant gearbox is used; when used for well workover, a parallel shaft gearbox is used. The cooling system includes a heat dissipation system, which is integrated into the winch base.

2. The multi-power drive integrated winch for oil drilling and well workover as described in claim 1, characterized in that: The winch frame includes a right side plate, a left side plate, and a drum guard plate. The right side plate and the left side plate are erected on the winch base. The drum guard plate is located between the left side plate and the right side plate and is located on the drum. A left bearing is installed on the left side plate, and a through hole is provided on the right side plate. The left end of the drum shaft assembly passes through the left bearing and is mounted thereon, and the right end of the drum shaft assembly passes through the through hole.

3. The multi-power drive integrated winch for oil drilling and well workover as described in claim 2, characterized in that: The aforementioned combined-force reduction gearbox or parallel-shaft reduction gearbox includes an input gear shaft and input gear assembly, a housing, a sealing ring, and an output gear shaft and output gear assembly. Multiple input gear shafts are evenly distributed around the circumference of the output gear shaft. These input gear shafts are connected to multiple motor output shafts via couplings. Multiple input gears are meshed with the output gear assembly. The output gear shaft is part of a roller shaft assembly. The input gear shaft and output gear shaft are sealed to the housing via sealing rings. The housing is formed by a reduction gearbox side plate located on the right side of a right side plate, with the right side plate and the reduction gearbox side plate forming the reduction gearbox cavity. The parallel-shaft reduction gearbox also includes an idler gear located between the input gear and the output gear, meshing with each other.

4. The multi-power drive integrated winch for oil drilling and well workover as described in claim 2, characterized in that: The multi-power motor shift box assembly includes multiple motors, a shift box, and a coupling. The output of the motor is output through the shift box and then connected to the input gear shaft of the gearbox through the coupling. The motor housing is provided with a cooling water inlet and a cooling water outlet, which are connected to the circulating water of the cooling system.

5. The multi-power drive integrated winch for oil drilling and well workover as described in claim 4, characterized in that: The multi-power motor shift box assembly is distributed on one side or evenly distributed on both sides of the combined force reduction box.

6. The multi-power drive integrated winch for oil drilling and well workover as described in claim 5, characterized in that: The right bearing and bearing housing are located on the side plate of the gearbox or independently on the right end of the drum shaft.

7. The multi-power drive integrated winch for oil drilling and well workover as described in claim 6, characterized in that: The roller shaft and output gear shaft are integrated into a single unit.

8. The multi-power drive integrated winch for oil drilling and well workover as described in claim 1, characterized in that: The braking assembly uses either a push-disc air brake or a hydraulic disc brake.

9. The multi-power drive integrated winch for oil drilling and well workover as described in claim 1, characterized in that: The aforementioned heat dissipation system employs water cooling and fan cooling for temperature reduction.

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