Winch
By adjusting the center distance between the gear transmission and the drum shaft, reducing the structural size of the winch and improving reliability, the shortcomings of existing oil drilling rig winches in terms of improvement capabilities and empty hook speed are solved, and a wider scope of application and lower manufacturing costs are achieved.
Patent Information
- Application Number
- CN202420253546.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-02-02
AI Technical Summary
When the existing oil drilling rig winch meets the normal drilling and lifting capacity, the empty hook hook speed is too low, which wastes drilling time; when increasing the empty hook hook speed, the winch's lifting capacity is insufficient, and the manual shift of the gearbox two gears is cumbersome, and the maximum output speed of the motor is too high and it is difficult to control, which increases the size and cost of the drilling rig.
The center distance between the gear transmission and the drum shaft is freely adjusted through the chain, and the first-stage chain drive is used to reduce the volume of the gear transmission, reduce the structural size of the winch, and improve the reliability of the winch through the combination of energy consumption and braking of the hydraulic disc brake device and the motor.
The winch structural size is reduced, the space application scope is expanded, the manufacturing cost is reduced, and the winch is improved through automatic shifting and hydraulic disc brake devices.
Smart Images
Figure CN222556451U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of lifting machinery, in particular to a winch. Background Art
[0002] The winch for oil drilling rigs is the main component of drilling rig equipment, which plays the role of drilling, special drilling operations and handling drilling accidents. Usually, this type of single-shaft winch for oil drilling rigs is driven by AC power and the speed reducer is not variable. Due to the speed reduction of the speed reducer and the limitation of the speed regulation range of the motor itself, when the normal drilling lifting capacity is met, the empty hook speed is too low, which wastes drilling time; in addition, the empty hook speed is increased to a suitable speed, but the lifting capacity of the winch cannot meet the requirements of normal drilling. Sometimes, in order to meet the requirements of the winch lifting capacity and the empty hook speed at the same time, a higher power motor has to be selected. The reduction box adopts two-speed manual shifting. Considering the cumbersomeness of the shifting operation, the high-speed gear ratio is usually designed to be larger, which can meet the needs of normal drilling. However, to obtain the ideal empty hook lifting speed, the maximum output speed of the motor is too high and difficult to control. The reduction box adopts two-speed manual shifting. The vehicle must be stopped when shifting gears, and someone is specially responsible for the shifting operation, which is cumbersome, time-consuming and labor-intensive. The transition connection between the output shaft of the oil rig winch gearbox and the drum shaft generally adopts an independent gear coupling. This layout structure occupies a large axial length and weight. For situations where the structure and space are limited, it increases the design difficulty and correspondingly increases the size of the drilling rig. For offshore mining platforms, it has poor applicability and is not economical. Utility Model Content
[0003] The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art and provide a winch. The utility model can freely adjust the center distance between the gear box and the drum shaft through the chain. Through the primary chain drive, the volume of the gear box can be greatly reduced, so that the structural size of the winch is greatly reduced; the winch has a wider range of space application, and the chain is economical and affordable, and the manufacturing cost of the winch is also greatly reduced.
[0004] In order to achieve the above utility model purpose, the technical solution provided by this utility model patent is as follows:
[0005] A winch comprises a bearing module, a driving module, a transmission module and a drum module, wherein the bearing module is provided with a driving module, a gear speed change module and a drum module, the bearing module comprises a winch frame, the driving module comprises an AC motor, the gear speed change module comprises a gear transmission, an input shaft and an output shaft, the drum module comprises a drum, a drum shaft and a hydraulic disc brake device, an AC motor is provided at a corner of the end face of the winch frame, a driving shaft is provided on the AC motor, the driving shaft is connected to the input shaft through a gear coupling, the input shaft is connected to the output shaft, one end of the output shaft is connected to one end of the drum shaft, a drum is provided in the middle of the drum shaft, and a hydraulic disc brake device is provided at the other end of the drum shaft.
[0006] Furthermore, the drive shaft and the input shaft provided on the AC motor are on the same axis, the input shaft and the output shaft are provided in parallel, and the drive shaft drives the output shaft to rotate.
[0007] Furthermore, the gear transmission is arranged on the end face of the winch frame, and an input shaft and an output shaft are respectively arranged in the gear transmission. The input shaft is provided with a first gear and a second gear, and the output shaft is provided with a third gear and a fourth gear. A high-speed gear clutch is also arranged on the input shaft, and the high-speed gear clutch is connected to the first gear. The high-speed gear clutch controls the connection between the first gear and the input shaft through hydraulic pressure, and the second gear is connected and fixed to the input shaft.
[0008] Furthermore, the output shaft is also provided with a low-speed clutch, and the low-speed clutch is connected to the third gear. The low-speed clutch controls the connection between the third gear and the output shaft through hydraulic pressure, and the fourth gear is fixedly connected to the output shaft.
[0009] Furthermore, the first gear is connected to the fourth gear via a gear, and the second gear is connected to the third gear via a gear.
[0010] Furthermore, a large sprocket is provided at one end of the drum shaft, and the large sprocket and the small sprocket are provided on the same side, and the large sprocket and the small sprocket are connected and transmitted by a chain, and a hydraulic disc brake device is provided at the other end of the drum shaft, and the hydraulic disc brake device is fixedly connected to the end face of the winch frame, and bearing seats are respectively provided on the inner sides of the large sprockets and the hydraulic disc brake devices provided at both ends of the drum shaft, and the drum shaft rotates in the bearing seats, and the drum provided in the middle of the drum shaft is fixedly connected to the side of the drum shaft.
[0011] Furthermore, the drum shaft is arranged parallel to the output shaft.
[0012] Based on the above scheme, the winch of the utility model has achieved positive and beneficial effects through practice:
[0013] 1. The utility model is a winch that can freely adjust the center distance between the gear box and the drum shaft through a chain. It is driven by a primary chain, which can greatly reduce the volume of the gear box, thereby greatly reducing the structural size of the winch; making the winch have a wider spatial application range, and the chain is economical and practical, and the manufacturing cost of the winch is also greatly reduced.
[0014] 2. The winch of the utility model improves the reliability of the winch by adopting a combination of energy-consuming braking of an electric motor and a hydraulic disc brake. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a top view of a winch in the utility model.
[0016] Figure 2 It is a front view of a winch in the utility model.
[0017] Figure 3 It is a side view of a winch in the utility model.
[0018] Figure 4 It is a cross-sectional view of a gear box in a winch of the utility model. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solution and advantages of the utility model clearer, the present invention is described below by specific examples shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.
[0020] like Figure 1-4 As shown in , the utility model belongs to a winch, including a bearing module, a driving module, a transmission module and a drum module, the bearing module is provided with a driving module, a gear speed module and a drum module, the bearing module includes a winch frame 5, the driving module includes an AC motor 1, the gear speed module includes a gear transmission 2, an input shaft 22 and an output shaft 24, the gear transmission 2 includes an input shaft 22 and an output shaft 24; the drum module includes a drum 7, a drum shaft 8 and a hydraulic disc brake device 6, an AC motor 1 is provided at a corner of the end face of the winch frame 5, a driving shaft is provided on the AC motor 1, the driving shaft is connected to the input shaft 22 through a gear coupling, the input shaft 22 is connected to the output shaft 24, one end of the output shaft 24 is connected to one end of the drum shaft 8, a drum 7 is provided in the middle of the drum shaft 8, and a hydraulic disc brake device 6 is provided at the other end of the drum shaft 8.
[0021] The driving shaft arranged on the AC motor is coaxial with the input shaft 22 , the input shaft 22 is arranged in parallel with the output shaft 24 , and the driving shaft drives the output shaft 24 to rotate.
[0022] The gear transmission case 2 is arranged on the end face of the winch frame 5, and an input shaft 22 and an output shaft 24 are respectively arranged in the gear transmission case 2. A high-speed clutch 21 is arranged on the input shaft 22, and a low-speed clutch 23 is arranged on the output shaft 24. A small sprocket 3 is arranged on the end of the output shaft 24 away from the AC motor 1; the center distance between the gear transmission case 2 and the drum shaft 8 can be freely adjusted by the chain, and the volume of the gear transmission case 2 can be greatly reduced through the primary chain drive, so that the structural size of the winch is greatly reduced; the spatial application range of the winch is wider, and the chain is economical and affordable, and the manufacturing cost of the winch is also greatly reduced; the high-speed clutch 21 on the input shaft 22 is VSHOY-H5; the low-speed clutch 23 on the output shaft 24 is VSHOY-H7.
[0023] The transmission mode combining the chain and the gear box 2 greatly reduces the manufacturing cost of the winch and also reduces the volume of the winch, making it easier to transport.
[0024] The gear transmission case 2 is arranged on the end face of the winch frame, and an input shaft 22 and an output shaft 24 are respectively arranged in the gear transmission case 2. The input shaft 22 is provided with a first gear 81 and a second gear 82, and the output shaft 24 is provided with a third gear 83 and a fourth gear 84. A high-speed gear clutch is also arranged on the input shaft 22, and the high-speed gear clutch is connected to the first gear 81. The high-speed gear clutch controls the connection between the first gear 81 and the input shaft 22 by hydraulic pressure, and the second gear 82 is connected and fixed to the input shaft 22.
[0025] The output shaft 24 is also provided with a low-speed clutch, which is connected to the third gear 83 . The low-speed clutch controls the connection between the third gear 83 and the output shaft 24 through hydraulic pressure, and the fourth gear 84 is fixedly connected to the output shaft 24 .
[0026] The first gear 81 is connected to the fourth gear 84 through a gear, and the second gear is connected to the third gear 83 through a gear.
[0027] When the control system 60 controls the high-speed gear clutch 21 to make the first gear 81 tightly connected with the input shaft 22, the input shaft 22 drives the first gear 81 to rotate, and the first gear 81 drives the fourth gear 84 to rotate, and the fourth gear 84 thereby drives the output shaft 24 to rotate. At this time, when the output shaft 24 rotates, it does not drive the third gear 83 to rotate; when low-speed gear adjustment is required, the control system 60 controls the high-speed gear clutch 21 to release pressure, so that the input shaft 22 does not drive the first gear 81 to rotate, and the control system 60 controls the low-speed gear clutch 23 to increase pressure, so that the third gear 83 is tightly connected with the output shaft 24, the input shaft 22 drives the third gear 83 to rotate through the second gear 82, and the third gear 83 drives the output shaft 24 to rotate, thereby realizing the switching of the input shaft 22 and the output shaft 24 between the high-speed gear and the low-speed gear.
[0028] A control system 60 is also provided on the gear transmission 2, and the control system 60 is used to control the start, stop and switching of the high-speed clutch 21 on the input shaft 22 and the low-speed clutch 23 on the output shaft 24. The winch control system 60 is a conventional winch control system 60; the high-speed clutch 21 and the low-speed clutch 23 are conventional structures.
[0029] The control system 60 can realize automatic replacement and manual switching of the high and low speed gears of the winch. The control system 60 uses an explosion-proof solenoid valve to realize the conversion of the high and low speed gears of the winch. Its working principle is: the low speed gear works when the solenoid valve is without electricity, and the high speed gear works when it is powered. If the solenoid valve loses power or the coil is damaged, it will automatically switch to the low speed gear under the action of the spring force. In automatic mode, the low speed gear is set when the winch is started. When the winch runs to a certain height (the height can be set), the control system 60 reads the load data and compares it with the set load (the load size can be set). When the actual load is less than or equal to the set load, the system automatically switches to the high speed gear. When the actual load is greater than the set load, the system continues to maintain the low speed gear; in manual mode, the solenoid valve control is introduced into the customer control room through a multi-core cable, which can realize remote manual control of high and low speed shifting.
[0030] The use of this dual-speed automatic shifting transmission gearbox 2 can achieve gear shifting without stopping the winch, which is quick and saves time and effort, shortens the maneuvering time in drilling operations, and saves drilling costs.
[0031] A large sprocket 4 is provided at one end of the drum shaft 8, and the large sprocket 4 is provided on the same side as the small sprocket 3. The large sprocket 4 and the small sprocket 3 are connected and transmitted through a chain. A hydraulic disc brake device 6 is provided at the other end of the drum shaft 8, and the hydraulic disc brake device 6 is fixedly connected to the end surface of the winch frame 5. Bearing seats 50 are respectively provided on the inner sides of the large sprocket 4 and the hydraulic disc brake device 6 provided at both ends of the drum shaft 8. The drum shaft 8 rotates in the bearing seat 50, and the drum 7 provided in the middle of the drum shaft 8 is fixedly connected to the side of the drum shaft 8.
[0032] The drum shaft 8 is arranged parallel to the output shaft 24 .
[0033] The specific process of the winch operation is as follows: the AC motor 1 starts and drives the input shaft 22 to rotate through the drive shaft, the gear box 2 switches the input shaft 22 and the high-speed clutch 21 and the low-speed clutch 23 on the output shaft 24 according to the working speed of the winch, the output shaft 24 drives the drum shaft 8 to rotate through the sprocket, the drum shaft 8 drives the drum 7 to achieve winding and unwinding, and when the drum 7 needs to be braked, it is braked by the energy consumption braking of the AC motor 1 and the hydraulic disc brake device 6.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.
Claims
1. A winch, characterized in that: It includes a bearing module, a driving module, a transmission module and a drum module, wherein the bearing module is provided with a driving module, a gear speed change module and a drum module, the bearing module includes a winch frame, the driving module includes an AC motor, the gear speed change module includes a gear transmission, an input shaft and an output shaft, the drum module includes a drum, a drum shaft and a hydraulic disc brake device, an AC motor is provided at a corner of the end face of the winch frame, a driving shaft is provided on the AC motor, the driving shaft is connected to the input shaft through a gear coupling, the input shaft is connected to the output shaft, one end of the output shaft is connected to one end of the drum shaft, a drum is provided in the middle of the drum shaft, and a hydraulic disc brake device is provided at the other end of the drum shaft.
2. A winch according to claim 1, characterized in that: The driving shaft arranged on the AC motor is on the same axis as the input shaft, the input shaft is arranged in parallel with the output shaft, and the driving shaft drives the output shaft to rotate.
3. A winch according to claim 2, characterized in that: The gear transmission case is arranged on the end face of the winch frame, and an input shaft and an output shaft are respectively arranged in the gear transmission case. The input shaft is provided with a first gear and a second gear, and the output shaft is provided with a third gear and a fourth gear. A high-speed gear clutch is also arranged on the input shaft, and the high-speed gear clutch is connected to the first gear. The high-speed gear clutch controls the connection between the first gear and the input shaft through hydraulic pressure, and the second gear is connected and fixed to the input shaft.
4. A winch according to claim 3, characterized in that: The output shaft is also provided with a low-speed gear clutch, which is connected to the third gear. The low-speed gear clutch controls the connection between the third gear and the output shaft through hydraulic pressure, and the fourth gear is fixedly connected to the output shaft.
5. A winch according to claim 4, characterized in that: The first gear is connected to the fourth gear through a gear, and the second gear is connected to the third gear through a gear.
6. A winch according to claim 3, characterized in that: A large sprocket is provided at one end of the drum shaft, and the large sprocket and the small sprocket are provided on the same side, and the large sprocket and the small sprocket are connected and transmitted by a chain. A hydraulic disc brake device is provided at the other end of the drum shaft, and the hydraulic disc brake device is fixedly connected to the end face of the winch frame. Bearing seats are respectively provided on the inner sides of the large sprockets and the hydraulic disc brake devices provided at both ends of the drum shaft, and the drum shaft rotates in the bearing seats, and the drum provided in the middle of the drum shaft is fixedly connected to the side of the drum shaft.
7. A winch according to claim 3, characterized in that: The drum shaft is arranged parallel to the output shaft.