Winch driving transmission device of workover rig

Abstract

The utility model discloses a workover rig winch driving transmission device which comprises a winch rack, the winch rack is a frame of a rectangular structure, the two sides of the winch rack are provided with a pair of rotating bearings, a rotating shaft is assembled between the rotating bearings, one side of the winch rack is provided with a control gear set, and the other side of the winch rack is provided with a transmission shaft. One side of the control gear set is connected with a transmission motor; the utility model relates to the technical field of workover rig winches, in particular to a workover rig winch driving transmission device, which is characterized in that a rotating shaft is independently connected with a rack, and an independent speed reduction structure consisting of a large inner gear ferrule and a pinion is arranged on the rack, so that on one hand, the torque requirement is reduced, and on the other hand, the rotating shaft is independently connected with the speed reduction structure through a coaxial connector; and meanwhile, the pinions and the transmission motor part are provided with synchronizers to achieve synchronous limiting, torque stress of the shaft key part is further reduced through the synchronizers, and the shaft key is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of winches for well repair rigs, in particular to a driving transmission device for winches for well repair rigs. Background Art

[0002] In the process of oil drilling and production, a workover rig is a frequently used equipment. In order to facilitate the operation during the use of the workover rig, a vehicle-mounted structure is often adopted. During the use of the workover rig, a winch is required to control the cable.

[0003] At present, the winches of well repair rigs are mostly composed of a roller shaft, a driving mechanism, a cable controller, etc. During application, the roller shaft and the driving mechanism mostly adopt a coaxial structure. The driving mechanism is mostly composed of a driving motor and a gearbox. The gearbox is connected to the roller shaft with a shaft key. However, during the connection between the gearbox and the roller shaft, the shaft key structure is subjected to a large radial force and needs to be damaged and repaired after long-term use. However, the disassembly and assembly of the shaft key is troublesome after wear. In view of this, in-depth research was conducted on the above-mentioned problems, and this case was generated. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a workover rig winch drive transmission device, which solves the prior art problems.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a workover rig winch drive transmission device, comprising a winch frame, the winch frame is a rectangular frame, a pair of rotary bearings are arranged on both sides of the winch frame, a rotary shaft is assembled between the pair of rotary bearings, a control gear set is arranged on one side of the winch frame, and a transmission motor is connected to one side of the control gear set;

[0006] The control gear set includes a large internal gear ring, which is installed on one side of the winch frame, and a small gear is meshed on the inner side of the large internal gear ring, which is assembled on the winch frame, and the end of the small gear is connected to the transmission motor through the shaft center swivel seat, and the end of the transmission motor passes through the side wall of the winch frame and is provided with a transmission rod connected to the shaft center swivel seat;

[0007] A pair of rotating side plates are provided at both ends of the rotating shaft, and the pair of rotating side plates are arranged in parallel at both ends of the rotating shaft, and a coaxial connector is provided on one side of the rotating side plate to be connected with a large internal gear ring;

[0008] The shaft center rotating seat is provided with a synchronous limiter which is linked with the end of the transmission rod.

[0009] Preferably, a vertically symmetrical limit block is provided on one side of the winch frame to limit the large internal gear ring.

[0010] Preferably, the large internal gear ring is provided with a plurality of mounting holes, and the number of the coaxial connectors matches the mounting holes.

[0011] Preferably, the coaxial connector is a bracket with a triangular structure, and two ends of the coaxial connector are respectively connected to the mounting hole and the rotating side plate by bolts.

[0012] Preferably, the synchronous limiter includes a sleeve groove, a sleeve groove is opened on the axial swivel seat and sleeved on the end of the transmission rod, a switching paddle is provided on the axial swivel seat, a synchronizer is provided on the switching paddle, and a pair of transmission gears are provided at the end of the pinion gear and the end of the transmission rod correspondingly, and the pair of transmission gears are linked through the synchronizer. Beneficial Effects

[0013] The utility model provides a workover rig winch drive transmission device. It has the following beneficial effects: the workover rig winch drive transmission device has a rotating shaft and a frame independently connected, and an independent large internal gear ring and a small gear consisting of a reduction structure are arranged on the frame, which reduces torque requirements on the one hand, and on the other hand, the rotating shaft and the reduction structure are independently connected through a coaxial connector, which makes it convenient to disassemble and replace the maintenance. The small gear and the transmission motor are provided with a synchronizer to achieve synchronous limit, and the torque force on the shaft key part is further reduced through the synchronizer to protect the shaft key. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a three-dimensional structural schematic diagram of a workover rig winch drive transmission device.

[0015] Figure 2 It is a schematic diagram of the front cross-sectional structure of a workover rig winch drive transmission device according to the utility model.

[0016] Figure 3 The utility model is a front view structural schematic diagram of a workover rig winch drive transmission device.

[0017] Figure 4 It is a partial three-dimensional structural schematic diagram of a workover rig winch drive transmission device according to the utility model.

[0018] In the figure: 1. winch frame; 2. rotating bearing; 3. rotating shaft; 4. control gear set; 5. transmission motor; 6. rotating side plate; 7. coaxial connector; 8. limit block; 9. synchronous limiter; 41. large internal gear ring; 42. small gear; 43. axis swivel seat; 44. transmission rod; 91. sleeve groove; 92. toggle; 93. switching paddle; 94. synchronizer; 95. transmission gear. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 The utility model provides an implementation scheme: in the application process of modern well repair rigs, the lifting device of the well repair rig mainly relies on the winch. In the application process of the winch of the modern well repair rig, a reducer and a roller shaft are often used in combination. In the process of connecting the reducer and the roller shaft, the connection method of the coupling and the shaft key makes it possible that the shaft key size of the stress-bearing part cannot be too large, which leads to a large torque at the shaft key part. Long-term use will easily cause the shaft key to be damaged.

[0021] In view of the above problems, the present application discloses a drive transmission device for a workover rig winch, wherein a winch frame 1 is welded at the working position of the workover rig, and the specific winch frame 1 is a rectangular frame, a pair of rotating bearings 2 are arranged on both sides of the winch frame 1, a rotating shaft 3 is assembled between the pair of rotating bearings 2, the rotating shaft 3 is the position where the stranding rope is installed, and the stranding rope is released and recovered by the rotation of the rotating shaft 3, a control gear set 4 is arranged on one side of the winch frame 1, and a transmission motor 5 is connected to one side of the control gear set 4, and the transmission motor 5 is used as power, and the control gear set 4 is located on one side of the winch frame 1 to transmit power to the rotating shaft 3 so that the rotating shaft 3 can rotate, thereby releasing and retracting the stranding rope;

[0022] The control gear set 4 disclosed above includes a large internal gear ring 41, which is mounted on one side of the winch frame 1, and a small gear 42 is meshedly arranged on the inner side of the large internal gear ring 41, and the small gear 42 is assembled on the winch frame 1, and the end of the small gear 42 is connected to the transmission motor 5 through the shaft center rotating seat 43, and the end of the transmission motor 5 passes through the side wall of the winch frame 1 and is provided with a transmission rod 44 connected to the shaft center rotating seat 43;

[0023] In the specific implementation process, the large inner tooth ring 41 is installed on one side of the winch frame 1 in a movable installation manner. The large inner tooth ring 41 rotates by meshing with the pinion 42. The pinion 42 obtains power by meshing with the shaft center rotating seat 43 and the transmission rod 44. When the shaft center rotating seat 43 and the side wall of the winch frame 1 are axially limited, the transmission rod 44 and the shaft center rotating seat 43 are locked to transmit power, so that the shaft center rotating seat 43 drives the pinion 42 to rotate;

[0024] Furthermore, the large inner toothed collar 41 is not directly mounted on the end of the rotating shaft 3, but a pair of rotating side plates 6 are arranged at both ends of the rotating shaft 3, and the pair of rotating side plates 6 are arranged in parallel at both ends of the rotating shaft 3. A coaxial connector 7 is arranged on one side of the rotating side plate 6 to connect with the large inner toothed collar 41, and the large inner toothed collar 41 and the rotating side plate 6 are connected by the coaxial connector 7. The coaxial connector 7 is connected in a ring array and has a large number. On the one hand, rotation and torque can be transmitted, and at the same time, the coaxial connector 7 can also disperse rotation. The radial force of the rotating shaft 3 and the large inner gear ring 41 is improved, and the structural strength is improved. Since the large inner gear ring 41 and the pinion 42 are both movably mounted on the transmission frame, the radial direction is limited. The large inner gear ring 41 is connected to the rotating side plate 6 separately, so that the radial force of the rotating shaft 3 is independent of the large inner gear ring 41. The cooperation between the large inner gear ring 41 and the pinion 42 reduces the torque required by the pinion 42, thereby reducing the radial force of the shaft center rotating seat 43 and the transmission rod 44, and reducing the force of the transmission motor 5.

[0025] Furthermore, a synchronous limiter 9 is provided on the axial swivel seat 43 and is linked to the end of the transmission rod 44. During the operation of the winch, the synchronization limiter 9 can release the linkage between the axial swivel seat 43 and the transmission rod 44, so that the maintenance of the transmission rod 44 and the transmission motor 5 is convenient. At the same time, the synchronization limiter 9, the transmission rod 44 and the axial swivel seat 43 are connected through a multi-directional multi-tooth structure, which further shares the rotational torque and radial force.

[0026] As a preferred solution, further, a vertically symmetrical limit block 8 is provided on one side of the winch frame 1 to limit the large inner tooth ring 41 , and the limit block 8 is used to limit the large inner tooth ring 41 in radial direction.

[0027] As a preferred solution, further, a plurality of mounting holes are provided on the large internal toothed ring 41, and the number of the coaxial connectors 7 matches the mounting holes.

[0028] As a preferred solution, further, the coaxial connector 7 is a bracket with a triangular structure, and the two ends of the coaxial connector 7 are respectively connected to the mounting hole and the rotating side plate 6 by bolts. The rotating side plate 6 and the large internal gear ring 41 are connected by the coaxial connector 7 with a triangular structure, so that the large internal gear ring 41 transmits power to the rotating side plate 6.

[0029] As a preferred solution, further, according to the attached description Figure 3-4 It can be seen that the above-mentioned synchronous limiter 9 includes a sleeve groove 91, the sleeve groove 91 is opened on the shaft rotating seat 43 and sleeved on the end of the transmission rod 44, the shaft rotating seat 43 is provided with a switching paddle 93, and the switching paddle 93 is provided with a synchronizer 94, and the end of the pinion 42 and the end of the transmission rod 44 are correspondingly provided with a pair of transmission gears 92, and the pair of transmission gears 92 are linked through the synchronizer 94;

[0030] In the specific implementation process, the sleeve groove 91 wraps the transmission rod 44, and at the same time axially aligns the transmission gear 92 at the end of the transmission rod 44 with the transmission gear 92 at the end of the pinion 42 in the axial swivel seat 43. The synchronizer 94 is driven by the switching paddle 93 to link the pair of transmission gears 92, thereby transmitting the torque of the transmission motor 5 to the pinion 42, so that the pinion 42 drives the large internal tooth ring 41 to rotate. In the process of releasing the linkage of the transmission gear 92, the synchronizer 94 is driven by the switching paddle 93 to engage with one of the transmission gears 92, thereby opening the axial swivel seat 43 and contacting the connection of the transmission gear 92, so as to facilitate the inspection and replacement of the transmission motor 5.

[0031] From the above, it can be generally known that the workover rig winch drive transmission device, the rotating shaft 3 is independently connected to the frame, and an independent reduction structure consisting of a large internal gear ring 41 and a pinion 42 is arranged on the frame. On the one hand, the torque demand is reduced, and on the other hand, the rotating shaft 3 and the reduction structure are independently connected through the coaxial connector 7, which makes it convenient to disassemble and repair. The pinion 42 and the transmission motor 5 are provided with a synchronizer 94 to achieve synchronous limiting. The synchronizer 94 further reduces the torque force on the shaft key part to protect the shaft key.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A workover rig winch drive transmission device, comprising a winch frame (1), the winch frame (1) being a rectangular frame, a pair of rotary bearings (2) being arranged on both sides of the winch frame (1), a rotary shaft (3) being arranged between the pair of rotary bearings (2), and characterized in that: A control gear set (4) is provided on one side of the winch frame (1), and a transmission motor (5) is connected to one side of the control gear set (4); The control gear set (4) comprises a large internal gear ring (41), the large internal gear ring (41) being mounted on one side of the winch frame (1), a small gear (42) being meshedly arranged on the inner side of the large internal gear ring (41), the small gear (42) being mounted on the winch frame (1), the end of the small gear (42) being connected to the transmission motor (5) via an axial swivel seat (43), and the end of the transmission motor (5) being passed through the side wall of the winch frame (1) and being provided with a transmission rod (44) connected to the axial swivel seat (43); A pair of rotating side plates (6) are provided at both ends of the rotating shaft (3), the pair of rotating side plates (6) are arranged in parallel at both ends of the rotating shaft (3), and a coaxial connector (7) is provided on one side of the rotating side plate (6) and is connected to a large internal gear ring (41); The shaft center rotating seat (43) is provided with a synchronous limiter (9) which is linked to the end of the transmission rod (44).

2. A workover rig winch drive transmission device according to claim 1, characterized in that: A vertically symmetrical limit block (8) is provided on one side of the winch frame (1) to limit the position of the large internal gear ring (41).

3. A workover rig winch drive transmission device according to claim 2, characterized in that: The large internal gear ring (41) is provided with a plurality of mounting holes, and the number of the coaxial connectors (7) matches the number of the mounting holes.

4. A workover rig winch drive transmission device according to claim 3, characterized in that: The coaxial connector (7) is a bracket with a triangular structure, and two ends of the coaxial connector (7) are respectively connected to the mounting hole and the rotating side plate (6) by bolts.

5. A workover rig winch drive transmission device according to claim 4, characterized in that: The synchronous limiter (9) comprises a sleeve groove (91), the shaft center rotating seat (43) is provided with a sleeve groove (91) sleeved on the end of a transmission rod (44), the shaft center rotating seat (43) is provided with a switching paddle (93), the switching paddle (93) is provided with a synchronizer (94), and the ends of the pinion (42) and the ends of the transmission rod (44) are provided with a pair of transmission gears (92) correspondingly, and the pair of transmission gears (92) are linked via the synchronizer (94).

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