Dual-purpose drum for workover rigs

Abstract

The utility model relates to oilfield workover equipment discloses a dual -purpose drum of workover rig, including the casing and base, the casing fixed connection is in the upside of base, the left side rotatory connection of casing has the flat gear no.

Description

Technical Field

[0001] This utility model relates to oilfield well repair equipment, and more particularly to a dual-purpose drum for a well repair machine. Background Technology

[0002] In the oil extraction industry, workover rigs are key equipment for ensuring normal oil well production and maintaining downhole equipment. Their stability and reliability play a decisive role in the efficient extraction of oil and gas resources. The drum unit of the workover rig is responsible for the deployment and retraction of steel cables, and is indispensable in oil well operations such as running tubing and retrieving. At the same time, because the steel cables operate in oily environments, the cleaning and maintenance of the equipment directly affects its service life and operational safety.

[0003] Existing workover rig drums often suffer from rope tangling and entanglement during cable deployment and retraction due to the lack of an effective guiding and adjustment mechanism. As the cable continues to wind up, the wire ropes squeeze and rub against each other, easily leading to wire breakage, accelerated wear, and even rope breakage accidents, severely impacting operational safety and efficiency. Furthermore, traditional workover rig cleaning systems rely heavily on manual labor or simple flushing devices, resulting in low cleaning efficiency and ineffective prevention of pipe blockage. Wastewater generated during cleaning also lacks proper collection and treatment measures, wasting water resources and polluting the working environment. To address these technical problems, this application proposes a dual-purpose drum for workover rigs. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a dual-purpose drum for a well workover machine. The drum moves synchronously with the bidirectional lead screw, which solves the problems of tangled and trapped steel cables and reduces friction. At the same time, the movable ball and spring form a one-way valve to improve cleaning efficiency, reduce manual labor, and improve the working environment.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A dual-purpose drum for a well workover rig includes a housing and a base. The housing is fixedly connected to the upper side of the base. A spur gear is rotatably connected to the left side of the housing. A first motor is fixedly connected to the left side of the spur gear. A support is fixedly connected to the rotating end of the first motor. A chain is meshed with the outer wall of the spur gear. A drum is rotatably connected to the inner wall of the spur gear. A transmission gear is rotatably connected to the upper side of the housing. A double-acting lead screw is rotatably connected to the right side of the transmission gear. A cable assembly is provided on the outer wall of the double-acting lead screw. A rotating shaft is rotatably connected to the upper side of the inner side of the housing. A cleaning assembly is provided on the outer wall of the rotating shaft.

[0007] Furthermore, the wiring assembly includes a connecting block sleeved on the outer wall of the bidirectional lead screw, a guide wheel rotatably connected to the upper inner wall of the connecting block, a fixed shaft fixedly connected to the inner wall of the housing, and an adjusting column rotatably connected to the inner wall of the connecting block.

[0008] Furthermore, the cleaning assembly includes a fan fixedly connected to the outer wall of the rotating shaft, a water outlet pipe rotatably connected to the upper side of the fan, and a movable ball disposed inside the right side of the water outlet pipe.

[0009] Furthermore, a second motor is fixedly connected to the upper side of the housing, and a second spur gear is fixedly connected to the right side of the second motor. A second chain is meshed with the outer wall of the second spur gear.

[0010] Furthermore, a hole is provided on the right side of the water outlet pipe, the movable ball is located on the upper side of the hole, and a spring is provided on the right side of the movable ball.

[0011] Furthermore, a guide plate is fixedly connected to the lower inner wall of the housing, a water tank is provided on the rear side of the housing, and a collection box is fixedly connected to the rear side of the housing.

[0012] Furthermore, a transmission gear two is internally meshed on the lower side of the chain two, and the transmission gear two is fixedly connected to the right side of the rotating shaft.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, a linkage structure between a spur gear and a transmission gear is installed on the outer wall of the casing to achieve synchronous movement of the bidirectional lead screw and the drum. This innovative design allows for precise guidance and positioning of the steel cable during winding and unwinding, effectively solving the problems of tangled and trapped steel cables in traditional workover rigs. The guide wheel and adjusting column on the connecting block cooperate to ensure that the steel cable enters the drum at a suitable angle, significantly reducing compression and friction between the cables. The neat arrangement of the steel cable eliminates vibration caused by tangled ropes, significantly improving the stability and safety of workover operations and extending the service life of the steel cable.

[0015] 2. In this invention, the one-way valve composed of a movable ball and a spring cleverly solves the problem of pipe blockage in traditional cleaning systems, improving cleaning efficiency. The guide plate and collection box can collect cleaning wastewater centrally, facilitating subsequent recycling and aligning with the concept of green environmental protection. In actual operation, this cleaning system shortens cleaning time, reduces manual intervention, lowers the risk of operators coming into contact with oil, and improves the working environment. Attached Figure Description

[0016] Figure 1 This is a perspective view of a dual-purpose drum for a well-servicing machine proposed in this utility model;

[0017] Figure 2This is a schematic diagram of the guide wheel structure of a dual-purpose drum for a well workover machine proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the guide plate structure of a dual-purpose drum for a well workover machine proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the fan structure of a dual-purpose drum for a well repair machine proposed in this utility model.

[0020] Legend:

[0021] 1. First motor; 2. Support; 3. First spur gear; 4. Housing; 5. Base; 6. Double-acting lead screw; 7. Fixed shaft; 8. Second motor; 9. First transmission gear; 10. First chain; 11. Drum; 12. Connecting block; 13. Guide wheel; 14. Fan; 15. Guide plate; 16. Second spur gear; 17. Second chain; 18. Second transmission gear; 19. Collection box; 20. Water outlet pipe; 21. Spring; 22. Movable ball. Detailed Implementation

[0022] 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.

[0023] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a dual-purpose drum for a well-working machine, comprising a housing 4 and a base 5. The housing 4 is fixedly connected to the upper side of the base 5. A spur gear 3 is rotatably connected to the left side of the housing 4. A first motor 1 is fixedly connected to the left side of the spur gear 3. A support 2 is fixedly connected to the rotating end of the first motor 1. A chain 10 is meshed with the outer wall of the spur gear 3. A drum 11 is rotatably connected to the inner wall of the housing 4. A transmission gear 9 is rotatably connected to the upper side of the transmission gear 9. A double-acting screw 6 is rotatably connected to the right side of the transmission gear 9. A connecting block 12 is provided on the outer wall of the double-acting screw 6. A guide wheel 13 is rotatably connected to the inner wall of the upper side of the connecting block 12. A fixed shaft 7 is provided inside the upper side of the connecting block 12 and is fixedly connected to the inner wall of the housing 4. An adjusting column is rotatably connected to the inner wall of the connecting block 12. A rotating shaft is rotatably connected to the upper side of the housing 4. A fan 14 is provided on the outer wall of the rotating shaft. A water outlet pipe 20 is rotatably connected to the upper side of the fan 14. A movable ball 22 is provided inside the right side of the water outlet pipe 20.

[0024] Specifically, during the device implementation process, the first motor 1 is started, which drives the drum 11 to rotate, thereby fixing or activating the steel cable. During this process, the steel cable is subject to significant weight, and tangling or entrapment may occur when the wire rope is wound around the first motor 1. This can lead to wire rope compression, wear, broken wires, vibration, and other issues affecting its service life, and in extreme cases, even breakage. Therefore, an auxiliary structure is designed: a flat gear 3 is installed on the outer wall of the housing 4. While the first motor 1 drives the drum 11 to rotate, it can also drive the transmission gear 9 to rotate, which in turn drives the bidirectional lead screw 6 to rotate. The unique properties of the lead screw 6 allow the bidirectional lead screw 6 located on its outer side to move left and right as the drum 11 rotates. The fixed shaft 7 maintains the structural stability of the connecting block 12 during this process. The guide wheel 13 on the upper side of the connecting block 12 can adjust the direction of the steel cable when it enters the device, reducing the direct force of the steel cable on the device. The adjusting column at the end of the connecting block 12 allows the steel cable to be stored in the machine housing 4 in a more horizontal direction. This structural design allows the bidirectional lead screw 6 to move along with the rotation of the drum 11, which can make the steel cable more evenly distributed and prevent the aforementioned accidents from occurring. Because the steel cable is mainly used inside oil wells, it carries some oil stains and other contaminants. During the cable storage process, these contaminants splash onto the inner wall of the casing 4. While steel cables are typically cleaned by specialized machines, the casing 4 requires traditional cleaning methods. Therefore, a cleaning device was designed. The second motor 8 drives the second spur gear 16, the second chain 17, and the second transmission gear 18 to rotate the shaft. Water flows through the shaft into the fan 14, causing the fan blades to rotate, which in turn rotates the outlet pipe 20. The water pressure on the movable ball 22 causes it to spray out from the slots on its underside. The movable ball 22 can also rotate on its own axis while revolving around the central axis, cleaning the interior of the device to the maximum extent possible. This effectively removes contaminants. Furthermore, the movable ball 22 and spring 21 form a one-way valve structure. When external contaminants approach, the movable ball 22, under the elastic force of the spring 21, blocks the slots, preventing contaminants from clogging the pipe opening. The cleaned water then flows into the collection box 19 along the water channel under the action of the guide plate 15.

[0025] Reference Figure 3 A second spur gear 16 is fixedly connected to the right side of the second motor 8, and a chain 17 is meshed with the outer wall of the second spur gear 16. A hole is opened on the right side of the water outlet pipe 20, and a movable ball 22 is located above the hole. A spring 21 is located on the right side of the movable ball 22. A guide plate 15 is fixedly connected to the lower inner wall of the casing 4. A water tank is opened on the rear side of the casing 4, and a collection box 19 is fixedly connected to the rear side of the casing 4. A transmission gear 18 is meshed with the lower inner side of the chain 17, and the transmission gear 18 is fixedly connected to the right side of the rotating shaft.

[0026] Specifically, in the cleaning system of the dual-purpose drum for well workover rigs, power transmission is initiated by a second motor 8. A second spur gear 16 is fixedly connected to the right side of the second motor 8. The outer wall of the second spur gear 16 meshes with a second chain 17, and the lower interior of the second chain 17 is tightly meshed with a second transmission gear 18. The second transmission gear 18 is fixed to the right side of the rotating shaft. In this way, the power of the second motor 8 can be precisely transmitted to the second transmission gear 18 through the second spur gear 16 and the second chain 17, driving the rotating shaft to rotate stably. Regarding the water spray cleaning structure, a hole is opened on the right side of the water outlet pipe 20, and a movable ball 22 is placed above the hole. A spring 21 is installed on the right side of the movable ball 22. When water flows into the rotating shaft and impacts the fan 14, causing the water outlet pipe 20 to rotate, the water pressure squeezes the movable ball 22, compressing the spring 21. Water is then sprayed out from the slots on the lower side of the movable ball 22, achieving multi-angle rinsing of the inside of the casing. When there is no water flow or external dirt approaches, the elasticity of the spring 21 pushes the movable ball 22, sealing the slots and creating a one-way valve effect to prevent pipe blockage. In the wastewater collection and treatment stage, the guide plate 15 fixed to the lower inner wall of the casing 4, with its inclined structural design, effectively guides the wastewater generated during cleaning to the rear side of the casing 4. The pre-drilled water trough on the rear side of the casing 4 acts as a wastewater channel, allowing the wastewater to flow smoothly into the collection box 19 fixed on the rear side of the casing 4, thus completing the centralized collection of wastewater and preventing pollution of the working environment.

[0027] Working Principle: When the first motor 1 drives the drum 11 to rotate, it also drives the transmission gear 9 to rotate through a series of transmission devices. The rotation of the transmission gear 9 then drives the bidirectional lead screw 6 to rotate. The bidirectional lead screw 6 has unique structural characteristics. When it rotates, the connecting block 12 located on its outer side moves left and right along with the rotation of the drum 11. In this process, the fixed shaft 7 plays an important role. It can maintain the structural stability of the connecting block 12 and ensure that the connecting block 12 will not deviate or shake during movement. The guide wheel 13 on the upper side of the connecting block 12 can adjust its direction when the steel cable enters the device, reducing the direct force of the steel cable on the device and reducing the wear of the steel cable and the device. In addition, the adjusting column at the end of the connecting block 12 can allow the steel cable to be stored in the machine housing 4 in a relatively horizontal direction. Through this structural design, the bidirectional lead screw 6 can move along with the rotation of the drum 11, so that the steel cable is more evenly distributed on the drum 11. The power of the cleaning system comes from the second motor 8. When the second motor 8 is started, it drives the spur gear 16 to rotate. The second spur gear 16 transmits power to the second transmission gear 18 via the second chain 17, thereby driving the rotating shaft to rotate. A fan 14 is mounted on the rotating shaft. When water flows through the rotating shaft and into the fan 14, the impact of the water flow causes the fan 14 to rotate, which in turn drives the outlet pipe 20 to rotate. An opening is provided on the right side of the outlet pipe 20, and a movable ball 22 is installed above the opening. A spring 21 is connected to the right side of the movable ball 22. When pressurized water flows through, the water flow pushes the movable ball 22 to the right, compressing the spring 21. At this time, water can be sprayed out from the slot below the movable ball 22. Because the outlet pipe 20 is rotating under the drive of the fan 14, the water flow can rotate while revolving around the central axis, thus cleaning the inside of the device to the maximum extent. When the cleaning work is completed or when external dirt attempts to enter the outlet pipe 20, the elasticity of the spring 21 pushes the movable ball 22 to the left, blocking the slot and preventing dirt from clogging the pipe opening, thus acting as a one-way valve. After washing, the water will flow into the collection box 19 along the water tank under the action of the guide plate 15, realizing the centralized collection and treatment of sewage.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-purpose drum for a well workover rig, comprising a housing (4) and a base (5), characterized in that: The housing (4) is fixedly connected to the upper side of the base (5). A spur gear (3) is rotatably connected to the left side of the housing (4). A first motor (1) is fixedly connected to the left side of the spur gear (3). A support (2) is fixedly connected to the rotating end of the first motor (1). A chain (10) is meshed with the outer wall of the spur gear (3). A drum (11) is rotatably connected to the inner wall of the housing (4). A transmission gear (9) is rotatably connected to the upper side of the housing (4). A double-acting lead screw (6) is rotatably connected to the right side of the transmission gear (9). A cable assembly is provided on the outer wall of the double-acting lead screw (6). A rotating shaft is rotatably connected to the upper side inside the housing (4). A cleaning assembly is provided on the outer wall of the rotating shaft.

2. The dual-purpose drum of a well workover machine according to claim 1, characterized in that: The wiring assembly includes a connecting block (12) sleeved on the outer wall of the bidirectional lead screw (6). A guide wheel (13) is rotatably connected to the upper inner wall of the connecting block (12). A fixed shaft (7) is provided inside the upper side of the connecting block (12). The fixed shaft (7) is fixedly connected to the inner wall of the housing (4). An adjusting column is rotatably connected to the inner wall of the connecting block (12).

3. The dual-purpose drum of a well workover machine according to claim 1, characterized in that: The cleaning assembly includes a fan (14) fixedly connected to the outer wall of the rotating shaft, a water outlet pipe (20) rotatably connected to the upper side of the fan (14), and a movable ball (22) is provided inside the right side of the water outlet pipe (20).

4. The dual-purpose drum of a well workover machine according to claim 1, characterized in that: A second motor (8) is fixedly connected to the upper side of the housing (4), and a second spur gear (16) is fixedly connected to the right side of the second motor (8). A second chain (17) is meshed with the outer wall of the second spur gear (16).

5. The dual-purpose drum of a well workover machine according to claim 3, characterized in that: The water outlet pipe (20) has a hole on its right side, the movable ball (22) is located on the upper side of the hole, and a spring (21) is located on the right side of the movable ball (22).

6. The dual-purpose drum of a well workover rig according to claim 1, characterized in that: A guide plate (15) is fixedly connected to the lower inner wall of the casing (4), a water tank is provided on the rear side of the casing (4), and a collection box (19) is fixedly connected to the rear side of the casing (4).

7. The dual-purpose drum of a well workover machine according to claim 4, characterized in that: The lower side of the chain 2 (17) is internally connected to the transmission gear 2 (18), which is fixedly connected to the right side of the rotating shaft.

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