Winch

Abstract

The invention discloses a winch, which relates to the technical field of drilling tools and mainly comprises a winding drum, a gearbox and a multi-stage variable-speed motor, the output end of the multi-stage variable-speed motor is connected with the input end of the gearbox, and the output end of the gearbox is connected with the power input end of the winding drum. The multi-stage variable-speed motor can provide multiple different rotating speeds, the winch can achieve multiple different working speeds by combining the speed changing function of the gearbox, the winch can run at the proper speed in different working scenes, the working efficiency is improved, the gearbox and the multi-stage variable-speed motor work cooperatively to optimize the transmission process, and the transmission efficiency is improved. A synchronous belt and other transmission are not needed, the friction loss is small, the high energy utilization rate can be guaranteed, a belt installation space and a special starting cabinet are not needed, the installation space is saved, and the occupied area is small.

Description

Technical Field

[0001] The invention relates to the technical field of drilling tools, in particular to a winch. Background Art

[0002] At present, the transmission method of the winch on the water source drilling rig of model TSJ mainly adopts the ordinary asynchronous motor of model YE series as the power source. The power is transmitted to the friction clutch through the belt, and then transmitted to the gearbox through the friction clutch, and then transmitted to the drum through the planetary gear set. Due to the existence of more friction transmission, the transmission efficiency of this structure is low, the energy loss is large, and the connection structure is complex and easy to damage, and the floor space is large, which is not suitable for the requirements of lightweight and convenient transfer. In addition, there is another transmission method, which uses a variable frequency motor to directly drive the winch drum. Although this structure is simple, in order to meet the larger output power requirements, the variable frequency motor used needs to be large in power. In order to increase the power, it is necessary to equip multiple special starting cabinets, which is costly and occupies a large area. Therefore, there is an urgent need for a winch to solve the above technical problems. Summary of the invention

[0003] The purpose of the present invention is to provide a winch to solve the problems existing in the above-mentioned prior art, so that the energy utilization rate is high, the structure is simple, the floor space is small, and the working efficiency is high.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a winch, comprising a multi-stage variable speed motor, a gearbox and a drum, wherein the output end of the multi-stage variable speed motor is connected to the input end of the gearbox, and the output end of the gearbox is connected to the power input end of the drum.

[0006] In some embodiments, a planetary gear mechanism is also included, which includes a planetary gear, a planetary carrier, a sun gear and a ring gear. The sun gear is arranged at the center of the ring gear and is rotatably connected to the planetary carrier. The planetary gear is arranged in the ring gear and is rotatably connected to the planetary carrier. The planetary gear is meshed with the sun gear and the ring gear. The input end of the sun gear is fixedly connected to the output end of the gearbox, and the ring gear is fixedly connected to the reel.

[0007] In some embodiments, a set screw is further included, and the reel and the gear ring are fixed by the set screw.

[0008] In some embodiments, a coupling is further included, and the output end of the gearbox is connected to the input end of the sun gear through the coupling.

[0009] In some embodiments, a first brake and a second brake are further included, wherein the first brake is disposed on the outer side of the drum for locking or releasing the drum, and the second brake is connected to the planetary carrier of the planetary gear for locking or releasing the planetary carrier.

[0010] In some embodiments, a brake handle control group is also included, the brake handle control group includes a first control component and a second control component, the first control component is adjacent to and fixedly connected to the second control component, the first control component and the second control component each include a fixed ratchet, a fixed shaft and an engagement block, the fixed shaft is provided on both sides of the fixed ratchet, the engagement block is rotatably connected to the fixed shaft, and the engagement block is meshed and linked with the fixed ratchet, the first brake is connected to the first control component through at least two first pull rods and at least one rocker arm, the first pull rod close to the first control component is hinged to the engagement block of the first control component, the rocker arm is fixedly arranged on the mounting base of the reel, the first pull rod is hinged to the rocker arm, the second brake is connected to the second control component through the second pull rod, and the second pull rod is hinged to the engagement block of the second control component.

[0011] In some embodiments, it also includes handles, and two handles are provided, namely a first handle and a second handle, the first handle is fixedly connected to the engaging block of the first control component, and the second handle is fixedly connected to the engaging block of the second control component, the first handle is used to control the movement of the engaging block of the first control component relative to the fixed ratchet of the first control component, and the second handle is used to control the movement of the engaging block of the second control component relative to the fixed ratchet of the second control component.

[0012] In some embodiments, three first pull rods are provided, and two rocker arms are provided. The first brake is connected to the first control component via the first pull rod, the rocker arm, the first pull rod, the rocker arm, and the first pull rod in sequence, and the connection between each first pull rod and each rocker arm is hinged, the first pull rod close to the first brake is hinged to the first brake, and the first pull rod close to the first control component is hinged to the engagement block of the first control component.

[0013] In some embodiments, the first brake band and the second brake band are further included. The first brake band is fixedly provided at one end of the first brake close to the outer side of the drum, and the first brake band can be attached to or away from the drum. The second brake band is fixedly provided at one end of the second brake close to the planetary carrier, and the second brake band can be attached to or away from the planetary carrier.

[0014] In some embodiments, the gearbox includes a housing and a bearing, a first gear, a second gear, a third gear and a fourth gear arranged in the housing, the output end of the multi-stage speed-changing motor is fixedly connected to the first gear, the first gear is connected to the housing through the bearing, the second gear and the third gear are coaxially arranged, the first gear is meshingly connected to the second gear, the third gear is meshingly connected to the fourth gear, and the output shaft connected to the fourth gear is fixedly connected to the input end of the sun gear.

[0015] Compared with the prior art, the present invention has achieved the following technical effects:

[0016] The winch of the present invention includes a drum, a gearbox and a multi-stage variable speed motor. The output end of the multi-stage variable speed motor is connected to the input end of the gearbox, and the output end of the gearbox is connected to the power input end of the drum. The multi-stage variable speed motor can provide a plurality of different rotational speeds. Combined with the speed changing function of the gearbox, the winch can achieve a plurality of different working speeds. The winch can run at a more suitable speed in different working scenarios, thereby improving work efficiency. The gearbox and the multi-stage variable speed motor work together to optimize the transmission process. There is no need to use a synchronous belt or other transmission, and the friction loss is small, which can ensure a higher energy utilization rate. There is no need for a belt installation space and a special starting cabinet, which saves installation space and occupies a small area. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A front view of a winch in some embodiments of the present invention;

[0019] Figure 2 A top view of a winch in some embodiments of the present invention;

[0020] Figure 3 It is a schematic diagram of the transmission principle in some embodiments of the present invention;

[0021] Figure 4 A schematic diagram of the arrangement of the first brake and the drum in some embodiments of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the first holding brake and the second holding brake in some embodiments of the present invention;

[0023] Figure 6 for Figure 5 A magnified image of point A;

[0024] Figure 7 A schematic diagram of connecting a first holding brake and a second holding brake to a brake handle control group in some embodiments of the present invention;

[0025] Figure 8 A schematic diagram of a brake handle control group connected to a brake handle in some embodiments of the present invention;

[0026] Fig. 9 Schematic diagram of the structure of the first control component in some embodiments of the present invention.

[0027] In the figure: 1-multi-speed motor; 2-reel; 3-coupling; 4-gearbox; 41-first gear; 42-second gear; 43-third gear; 44-fourth gear; 5-ring gear; 6-planetary gear; 7-first brake; 8-second brake; 9-handle; 10-first brake band; 11-second brake band; 12-planet carrier; 13-fastening screw; 14-rocker arm; 15-first pull rod; 16-brake handle control group; 17-second pull rod; 18-fixed ratchet; 19-fixed shaft; 20-engaging block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The purpose of the present invention is to provide a winch to solve the problems existing in the prior art, so that the energy utilization rate is high, the structure is simple, the floor space is small, and the working efficiency is high.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] like Figure 1-Figure 9As shown, the winch provided by the present invention includes a multi-stage variable speed motor 1, a gearbox 4 and a drum 2, the output end of the multi-stage variable speed motor 1 is connected to the input end of the gearbox 4, and the output end of the gearbox 4 is connected to the power input end of the drum 2. Specifically, the multi-stage variable speed motor 1 and the drum 2 are arranged in parallel on the same horizontal plane, and the multi-stage variable speed motor 1 can provide multiple different speeds. Combined with the speed change function of the gearbox 4, the winch can achieve multiple different working speeds. The winch can be operated at a more suitable speed in different working scenarios. For example, a higher speed can be selected when lifting a lighter load to improve work efficiency; when lifting a heavier load or requiring precise control, a lower speed is selected to ensure the stability and safety of the operation. The gearbox 4 and the multi-stage variable speed motor 1 work together to optimize the transmission process, without the need to use a synchronous belt or other transmission, with less friction loss, and can ensure a higher energy utilization rate, and no belt installation space and a special starting cabinet are required, saving installation space and occupying a small area.

[0032] It should be noted that the model of the multi-stage variable speed motor 1 is a multi-stage variable speed motor of the YD series.

[0033] In some embodiments, the winch further comprises a planetary gear mechanism, the planetary gear mechanism comprises a ring gear 5, a sun gear, a planet carrier and a planetary gear 6, the sun gear is arranged at the center of the ring gear 5 and is rotatably connected to the planet carrier, the planetary gear 6 is arranged in the ring gear 5 and is rotatably connected to the planet carrier, and the planetary gear 6 is meshed with the sun gear and the ring gear 5, the output end of the gearbox 4 is fixedly connected to the input end of the sun gear, and the ring gear 5 is fixedly connected to the drum 2. The planetary gear mechanism can achieve a larger transmission ratio. By matching the different numbers of teeth between the sun gear, the planetary gear 6 and the ring gear 5, a larger reduction ratio can be obtained with only a compact structure, so that the drum 2 can obtain a lower speed and output a larger torque when the motor speed remains unchanged, meeting the needs of the winch to lift heavy objects. Specifically, the transmission ratio between the planetary gear 6 and the ring gear 5 can be 0.33. During operation, the power splitting characteristics of the planetary gear mechanism make the load distribution between the gears uniform, reduce the force on a single gear, reduce friction loss, and the transmission efficiency can reach a higher level, reduce energy loss, and improve the energy utilization rate of the winch. Furthermore, by changing the input-output relationship between the sun gear and the ring gear 5, or combining the multi-speed motor 1 and the gearbox 4, a more precise speed regulation of the winch can be achieved.

[0034] In some embodiments, the winch further includes a set screw 13, and the drum 2 and the ring gear 5 are fixed by the set screw 13. The set screw 13 can accurately fix the relative position of the drum 2 and the ring gear 5, ensuring that during the operation of the winch, there will be no relative displacement between the drum 2 and the ring gear 5, thereby ensuring the accuracy and stability of the transmission of the planetary gear mechanism. After being tightened, the set screw 13 can provide sufficient tightening force to tightly combine the drum 2 and the ring gear 5. When the winch is working, even if it is subjected to large torque and vibration, the set screw 13 can maintain a good connection state, prevent the drum 2 and the ring gear 5 from loosening, ensure the safe and reliable operation of the winch, and reduce the risk of accidents caused by loose connections.

[0035] In some embodiments, the winch further includes a coupling 3, and the output end of the gearbox 4 is connected to the input end of the sun gear through the coupling 3. The coupling 3 can efficiently transmit the torque output by the gearbox 4 to the sun gear, ensuring that the energy loss during the power transmission process is small, and can tightly connect the two components so that the two can run synchronously during the rotation process, ensuring that the winch can stably obtain the required power when working to meet the requirements of various working conditions such as lifting heavy objects. During the actual installation and operation process, there may be a certain degree of misalignment between the output end of the gearbox 4 and the input end of the sun gear, such as axial deviation, radial deviation or angular deviation. The coupling 3 has a certain compensation capability, can work normally within the allowable deviation range, effectively reduce the additional load and vibration caused by misalignment, protect the components of the gearbox 4 and the planetary gear mechanism, and extend the service life of the equipment.

[0036] In some embodiments, the winch further includes a first brake 7 and a second brake 8. The first brake 7 is arranged on the outside of the drum 2 and is used to lock or release the drum 2. The second brake 8 is connected to the planetary frame 12 of the planetary gear 6 and is used to lock or release the planetary frame. The first brake 7 is used to brake the drum 2 and can control the lowering speed of the drum 2. The second brake 8 is used to brake the planetary frame 12 and is used as a clutch of the winch to cut off the power transmission between the gearbox 4 and the drum 2. In the winch speed regulation process, the two brakes can be used in conjunction with the multi-stage variable speed motor 1, the gearbox 4, etc. For example, when it is necessary to quickly reduce the descent speed of the object, the second brake 8 can be used to brake the planetary frame to a certain extent to reduce the speed of the ring gear, and finally reduce the speed of the drum, and then the drum 2 can be braked in combination with the first brake 7 to achieve smooth and rapid speed regulation, making the operation of the winch more flexible and efficient.

[0037] In some embodiments, a brake handle control group 16 is further included. The brake handle control group 16 includes a first control component and a second control component. The first control component is adjacent to and fixedly connected to the second control component. Both the first control component and the second control component include a fixed ratchet 18, a fixed shaft 19 and an engagement block 20. The fixed ratchet 18 is fixedly provided with fixed shafts 19 on both sides. The engagement block 20 is rotatably connected to the fixed shaft 19, and the engagement block 20 is meshed and linked with the fixed ratchet 18. The first holding brake 7 is connected to the first control component through at least two first pull rods 15 and at least one rocker arm 14. The first pull rod 15 close to the first control component is hinged to the engagement block 20 of the first control component. The rocker arm 14 is fixedly provided on the mounting base of the reel 2. The first pull rod 15 is hinged to the rocker arm 14. The second holding brake 8 is connected to the second control component through the second pull rod 17. The second pull rod 17 is hinged to the engagement block 20 of the second control component. The brake handle control group is divided into a first control component and a second control component, which respectively control the first holding brake 7 and the second holding brake 8, thereby realizing independent operation of the two holding brakes. The operator can accurately control the braking degree and timing of each brake according to actual needs. For example, when the drum position needs to be fine-tuned, the first control component can be operated alone to control the first brake 7; and when the planetary gear needs to be braked specifically, the second brake 8 can be operated by the second control component. The brake handle control group 16 integrates the control ends of the first brake 7 and the second brake 8 together, providing the operator with a centralized and intuitive operation interface. The operator can control the locking and releasing actions of the first brake 7 and the second brake 8 by simply operating the brake handle control group 16.

[0038] In some embodiments, the winch further comprises a handle 9, which is provided with two handles, namely a first handle and a second handle, the first handle is fixedly connected to the meshing block 20 of the first control assembly, and the second handle is fixedly connected to the meshing block 20 of the second control assembly, the first handle is used to control the movement of the meshing block 20 of the first control assembly relative to the fixed ratchet 18 of the first control assembly, and is used to control the locking and releasing of the first brake 7, and the second handle is used to control the movement of the meshing block 20 of the second control assembly relative to the fixed ratchet 18 of the second control assembly, and is used to control the locking and releasing of the second brake 8. When the first handle is pushed forward and the second handle is pulled backward, the first brake 7 is locked, the second brake 8 is released, and the drum 2 stops lowering the object; when the first handle is pulled backward and the second handle is pushed forward, the second brake 8 is locked, the first brake 7 is released, the drum 2 rotates, and the object is lowered; when the handle 9 is in a state of not being pushed or pulled, the first brake 7 and the second brake 8 are both released, and the object lowered by the winch can be lowered freely.

[0039] In some embodiments, three first pull rods 15 are provided, and two rocker arms 14 are provided. The first brake 7 is connected to the first control assembly through the first pull rod 15, the rocker arm 14, the first pull rod 15, the rocker arm 14, and the first pull rod 15 in sequence, and the connection between each first pull rod 15 and each rocker arm 14 is hinged. The first pull rod 15 close to the first brake 7 is hinged to the first brake 7, and the first pull rod 15 close to the first control assembly is hinged to the engagement block 20 of the first control assembly. The three first pull rods 15 and the two rocker arms 14 form a multi-stage lever structure. When the operator pulls the handle 9 in the brake control group 16, the direction of the force can be changed once after each pull rod and the rocker arm 14 is transmitted, because the rocker arm 14 acts as a lever. This combination of multi-stage levers allows the operator to effectively control the first brake 7 with less force, thereby improving the convenience of operation.

[0040] It should be noted that the number and location of the first tie rods 15 and the rocker arms 14 can be changed according to the installation environment and operating habits, and the connection between the second brake 8 and the brake handle control group 16 can also be made with the help of multiple second tie rods 17 and the rocker arms 14.

[0041] In some embodiments, the winch further includes a first brake band 10 and a second brake band 11, the first brake band 10 is fixedly connected to the first brake 7, and the first brake band 10 is arranged on the outside of the drum 2, the first brake band 10 is arranged at one end of the first brake close to the outside of the drum 2, the first brake band 10 can be attached to or away from the drum 2, and can lock or release the drum 2, the second brake band 11 is fixedly connected to the second brake 8, the second brake band 11 is arranged corresponding to the planetary frame 12, the second brake band 11 is arranged at one end of the second brake 8 close to the planetary frame 12, the second brake band 11 can be attached to or away from the planetary frame 12, and can lock or release the planetary frame 12. Both the first brake band 10 and the second brake band 11 are made of asbestos. When braking is required, the first brake band 10 applies friction to the drum 2 under the action of the first brake 7, and quickly reduces the speed of the drum 2 until it stops; the second brake band 11 brakes the planetary frame 12, and indirectly affects the rotation of the drum 2 by limiting the movement of the planetary frame 12. The two work together to achieve a better braking effect.

[0042] In some embodiments, the gearbox 4 includes a housing and a bearing, a first gear 41, a second gear 42, a third gear 43 and a fourth gear 44 arranged in the housing. The output end of the multi-stage variable speed motor 1 is fixedly connected to the first gear 41, the first gear is connected to the housing through a bearing, the first gear 41 is meshed with the second gear 42, the second gear 42 is coaxially arranged with the third gear 43, the third gear 43 is meshed with the fourth gear 44, and the output shaft connected with the fourth gear 44 is fixedly connected to the input end of the sun gear. Through the mutual meshing and coaxial arrangement relationship of the first gear 41, the second gear 42, the third gear 43 and the fourth gear 44, combined with the multi-stage variable speed motor 1, multiple different transmission ratios can be achieved, so that the winch has a multi-stage speed change function. Specifically, the transmission ratio of the first gear 41 to the second gear 42 can be 0.26, and the transmission ratio of the third gear 43 to the fourth gear 44 can be 0.63. It should be noted that the gear design in the gearbox 4 is a mature prior art, which will not be described in detail here.

[0043] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A winch, characterized in that: The utility model comprises a multi-stage variable speed motor, a gearbox and a reel, wherein the output end of the multi-stage variable speed motor is connected to the input end of the gearbox, and the output end of the gearbox is connected to the power input end of the reel.

2. The winch according to claim 1, characterized in that: It also includes a planetary gear mechanism, which includes a planetary gear, a planetary carrier, a sun gear and a ring gear. The sun gear is arranged at the center of the ring gear and is rotatably connected to the planetary carrier. The planetary gear is arranged in the ring gear and is rotatably connected to the planetary carrier. The planetary gear is meshed with the sun gear and the ring gear. The input end of the sun gear is fixedly connected to the output end of the gearbox, and the ring gear is fixedly connected to the reel.

3. The winch according to claim 2, characterized in that: It also includes a set screw, and the reel and the gear ring are fixed by the set screw.

4. The winch according to claim 2, characterized in that: It also includes a coupling, through which the output end of the gearbox is connected to the input end of the sun gear.

5. The winch according to claim 2, characterized in that: It also includes a first brake and a second brake, wherein the first brake is arranged on the outer side of the drum and is used to lock or release the drum, and the second brake is connected to the planetary carrier of the planetary gear and is used to lock or release the planetary carrier.

6. The winch according to claim 5, characterized in that: It also includes a brake handle control group, which includes a first control component and a second control component, the first control component is adjacent to and fixedly connected to the second control component, the first control component and the second control component both include a fixed ratchet, a fixed shaft and an engagement block, the fixed shaft is provided on both sides of the fixed ratchet, the engagement block is rotatably connected to the fixed shaft, and the engagement block is meshed and linked with the fixed ratchet, the first brake is connected to the first control component through at least two first pull rods and at least one rocker arm, the first pull rod close to the first control component is hinged to the engagement block of the first control component, the rocker arm is fixedly arranged on the mounting base of the reel, the first pull rod is hinged to the rocker arm, the second brake is connected to the second control component through the second pull rod, and the second pull rod is hinged to the engagement block of the second control component.

7. The winch according to claim 6, characterized in that: It also includes handles, and there are two handles, namely a first handle and a second handle. The first handle is fixedly connected to the engaging block of the first control component, and the second handle is fixedly connected to the engaging block of the second control component. The first handle is used to control the movement of the engaging block of the first control component relative to the fixed ratchet of the first control component, and the second handle is used to control the movement of the engaging block of the second control component relative to the fixed ratchet of the second control component.

8. The winch according to claim 6, characterized in that: There are three first pull rods and two rocker arms. The first brake is connected to the first control component via the first pull rod, the rocker arm, the first pull rod, the rocker arm and the first pull rod in sequence, and each first pull rod is hingedly connected to each rocker arm. The first pull rod close to the first brake is hingedly connected to the first brake, and the first pull rod close to the first control component is hingedly connected to the engagement block of the first control component.

9. The winch according to claim 5, characterized in that: It also includes a first brake band and a second brake band. The first brake band is fixedly provided at one end of the first brake close to the outer side of the drum, and the first brake band can be attached to or away from the drum. The second brake band is fixedly provided at one end of the second brake close to the planetary carrier, and the second brake band can be attached to or away from the planetary carrier.

10. The winch according to claim 2, characterized in that: The gearbox includes a housing and a bearing, a first gear, a second gear, a third gear and a fourth gear arranged in the housing. The output end of the multi-stage speed-changing motor is fixedly connected to the first gear, the first gear is connected to the housing through the bearing, the second gear and the third gear are coaxially arranged, the first gear is meshed with the second gear, the third gear is meshed with the fourth gear, and the output shaft connected to the fourth gear is fixedly connected to the input end of the sun gear.

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