Driving system for high-pressure hose roller

Abstract

The utility model discloses a driving system for a high-pressure hose roller, which comprises a vertically arranged driving motor, a speed reducer connected to the driving motor, a pinion connected to a horizontal output shaft of the speed reducer and a large gear ring meshed with the pinion, teeth are arranged on the inner ring of the large gear ring, and the periphery of the large gear ring is fixedly connected with the roller. A high-pressure hose is wound on the roller, an eccentric disc is further arranged on the speed reducer, the inner circle of the eccentric disc is connected to the speed reducer through a plurality of mounting holes in the periphery, and the outer circle of the eccentric disc is connected to the roller base through a plurality of mounting holes in the periphery. The center of the inner circle rotates around the center of the outer circle, so that the center distance between the small gear and the large gear ring is adjusted to be within a designed range to achieve normal meshing. By arranging the eccentric disc, the center distance of the gear set can be adjusted, the assembly precision is improved, the meshing smoothness of the gear set is ensured, and the service life of equipment is prolonged.

Description

Drive system for high pressure hose rollers Technical Field

[0001] This utility model relates to the technical field of offshore fracturing drive systems. More specifically, this utility model relates to a drive system for a high-pressure hose drum. Background Technology

[0002] Fracturing is a primary measure for enhancing oil and gas well production and improving recovery rates, and it is widely used in both onshore and offshore oil and gas fields abroad. In China, due to limitations in fracturing equipment, it is mainly applied to onshore oil and gas fields. Therefore, there is a need to develop reliable offshore fracturing equipment to meet the fracturing requirements of offshore oil and gas fields. High-pressure hose drums are an essential component of offshore fracturing equipment, primarily providing a high-pressure fluid flow channel between the fracturing vessel and the work platform. The extension and retraction of the high-pressure hose requires the rotation of the drum, which is driven by a drive system. Typical drive systems use a motor to drive gears, which in turn rotate the drum. The assembly precision of the two gears during gear meshing significantly impacts the lifespan and normal operation of the drive system, and current technology lacks solutions to address this issue. Summary of the Invention

[0003] One objective of this invention is to provide a drive system for high-pressure hose rollers, which can adjust the center distance of the gear set by setting an eccentric disc, thereby improving assembly accuracy, ensuring smooth meshing of the gear set, and extending the service life of the equipment.

[0004] To solve the above-mentioned technical problems, this utility model provides a drive system for a high-pressure hose roller, including a vertically arranged drive motor, a reducer connected to the drive motor, a pinion connected to the horizontal output shaft of the reducer, and a large gear ring meshing with the pinion. The large gear ring has teeth on its inner ring and is fixedly connected to the roller on its outer circumference. The high-pressure hose is wound on the roller. The reducer is also provided with an eccentric disc, the inner circle of which is connected to the reducer through multiple mounting holes on its outer circumference. The outer circle of the eccentric disc is also connected to the roller base through multiple mounting holes on its outer circumference. When the eccentric disc rotates, the center of the inner circle rotates around the center of the outer circle, thereby adjusting the center distance between the pinion and the large gear ring to the designed range to achieve normal meshing.

[0005] Preferably, the outer and inner mounting holes of the eccentric disc are in a multiple relationship, and the mounting holes are evenly spaced around the outer circumference to ensure that the reducer and motor are always in a vertical state when the eccentric disc is adjusted.

[0006] Preferably, the drive motor is mounted on the roller base via a mounting bracket, the mounting bracket including an L-shaped base plate and a side plate, the base plate being fitted and fixed to the roller base, and the drive motor being arranged parallel to and fixedly connected to the side plate.

[0007] Preferably, the mounting bracket is further provided with a top plate, which forms a Z-shape with the bottom plate and the side plate. One end of a tie rod is bolted to the top plate, and the other end of the tie rod is connected to the drive motor.

[0008] Preferably, multiple threaded plates are vertically arranged on the side, and limiting bolts are inserted inside them. The limiting bolts are locked by locking nuts, and the limiting bolts abut against the drive motor housing from directly below the drive motor to share the weight of the drive motor.

[0009] Preferably, the drive motor is further provided with a protective cover, which together with the mounting bracket forms a sealed space to enclose the drive motor, reducer and eccentric wheel.

[0010] This utility model has at least the following beneficial effects:

[0011] 1. This utility model, by setting an eccentric disc, adjusts the center distance between the pinion and the large gear ring, preventing jamming caused by an excessively small center distance between the two gears; it can also prevent excessively large gear clearance caused by an excessively large center distance, which increases the impact and noise in the transmission and shortens the gear life.

[0012] 2. This utility model uses a tie rod, limit bolts, and locking nuts to bear the weight of the drive motor, preventing the weight of the drive motor and external loads from acting directly on the reducer, thus protecting the reducer.

[0013] 3. This utility model ensures that the reducer and motor can be installed vertically while adjusting the center distance; otherwise, the motor bracket, limit bolts, etc., cannot be installed.

[0014] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0015] Figure 1 is a three-dimensional structural diagram of this utility model;

[0016] Figure 2 is a schematic diagram of the drive system of this utility model installed on the drum base;

[0017] Figure 3 is a structural diagram of the eccentric disk of this utility model.

[0018] Figure 4 is a structural diagram of the eccentric disk of this utility model.

[0019] Figure 5 is a partial enlarged view of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Mounting bracket, 2. Tie rod, 3. Drive motor, 4. Reducer, 5. Eccentric disc, 6. Protective cover, 7. Threaded plate, 8. Locking nut, 9. Limit bolt, 10. Pinion, 11. Large gear ring, 12. Roller, 13. Roller base. Detailed Implementation

[0022] To better understand the purpose, structure, and function of this utility model, the following detailed description is provided in conjunction with the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0023] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are all conventional methods, and the reagents and materials described are all commercially available unless otherwise specified. In the description of this utility model, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] As shown in Figures 1 to 5, this utility model provides a drive system for a high-pressure hose roller, including a vertically arranged drive motor 3, a reducer 4 connected to the drive motor 3, a pinion 10 connected to the horizontal output shaft of the reducer 4, and a large gear ring 11 meshing with the pinion 10. The large gear ring 11 has teeth on its inner ring and is fixedly connected to a roller 12 on its outer circumference. A high-pressure hose is wound on the roller 12. The reducer 4 is also provided with an eccentric disk 5, the inner circle of which is connected to the reducer 4 through multiple mounting holes on its outer circumference. The outer circle of the eccentric disk 5 is also connected to the roller base 13 through multiple mounting holes on its outer circumference. When the eccentric disk 5 rotates, the center of the inner circle rotates around the center of the outer circle, thereby adjusting the center distance between the pinion 10 and the large gear ring 11 to the designed range to achieve normal meshing.

[0025] The high-pressure hose on the roller 12 is driven by the drive motor 3 and reducer 4 of the drive system, which drives the pinion 10 to rotate. The pinion 10 drives the large gear ring 11 to rotate, and the roller 12 also rotates with the large gear ring 11. The high-pressure hose wound on the roller 12 also rotates accordingly, thus realizing the winding and unwinding of the hose. After the drive motor 3 is installed, its output shaft is connected to the reducer 4 to provide drive torque. The function of the reducer 4 is to reduce speed and increase torque, amplifying the output torque of the motor. One side of the eccentric disc 5 is connected to the flange face of the roller base 13, and the other side is connected to the reducer 4. Its function is to adjust the center distance between the pinion 10 and the large gear ring 11 to prevent: 1. jamming caused by the center distance between the two gears being too small; 2. excessive gear clearance caused by the center distance being too large, which increases the impact and noise in the transmission and shortens the gear life.

[0026] Working principle of eccentric disk 5: The outer circle and inner circle of eccentric disk 5 are not concentrically designed, and there is a deviation in the center distance (as shown in Figures 3 and 4, the center distance deviation is 20mm). The center of the outer circle is the design center of the pinion 10 with the theoretical center distance of the gear, and the inner circle is the actual installation center of the pinion 10. When the eccentric disk 5 is rotated during installation, the actual center distance will change, as shown in Figures 3 and 4.

[0027] Center distance adjustment method: According to the center distance adjustment needs (increase or decrease), rotate the eccentric disk 5 clockwise or counterclockwise. When the drive motor 3 is installed, the output shaft is in a vertical state. The eccentric distance is converted into the horizontal and vertical displacement of the drive motor 3 by adjusting the eccentric disk 5. The horizontal and vertical displacements are adapted by the lifting holes designed on the motor mounting bracket 1, thereby ensuring that the motor mounting bracket 1 is in a vertical state and can fit with the roller base 13 to support the weight of the motor, ultimately achieving the purpose of protecting the reducer 4.

[0028] In another technical solution, the outer and inner circular mounting holes of the eccentric disk 5 are in a multiple relationship, and the mounting holes are evenly spaced around the outer periphery, thereby ensuring that the reducer and motor are always in a vertical state when the eccentric disk is adjusted.

[0029] The number of mounting holes on the outer circle is a multiple of the number of mounting holes on the inner circle, such as 32 holes on the inner circle and 16 holes on the outer circle. This design ensures that the drive motor 3 is installed vertically. If the drive motor 3 cannot be kept vertical during installation, the motor mounting bracket 1 will not be able to fit snugly against the roller base 13. As a result, the weight of the drive motor 3 and the mounting bracket 1 will be borne by the reducer 4, which may damage the reducer 4.

[0030] In another technical solution, the drive motor 3 is mounted on the roller base 13 via a mounting bracket 1. The mounting bracket 1 includes an L-shaped base plate and a side plate. The base plate is fitted and fixed to the roller base 13, and the drive motor 3 is arranged parallel to the side plate and fixedly connected to the side plate.

[0031] The motor mounting bracket 1 is installed on the roller base 13, providing a mounting position for the drive motor 3. The roller 12 is mounted via a roller 12 bracket, which includes a base directly below the roller 12 and side brackets. The mounting bracket 1 is tightly attached to and connected to the roller base 13 as a single unit via a base plate.

[0032] In another technical solution, the mounting bracket 1 is also provided with a top plate, which forms a Z-shape with the bottom plate and the side plate. One end of the pull rod 2 is connected to the top plate by bolts, and the other end of the pull rod 2 is connected to the drive motor 3.

[0033] After one end of the pull rod 2 is connected to the drive motor 3, the other end passes through the top plate and the tension of the pull rod 2 is adjusted by bolts to bear the weight of the drive motor 3, prevent the weight of the drive motor 3 from acting directly on the reducer 4, and protect the reducer 4.

[0034] In another technical solution, as shown in Figure 5, multiple threaded plates 7 are vertically arranged on the side, and limiting bolts 9 are inserted inside them. The limiting bolts 9 are locked by locking nuts 8. The limiting bolts 9 are pressed against the housing of the drive motor 3 from directly below the drive motor 3 to share the weight of the drive motor 3.

[0035] Threaded plate 7 is used to install limit bolt 9. Locking nut 8 is used to lock the limit bolt 9 to prevent loosening. After the drive motor 3 is installed on the mounting bracket 1, tighten the limit bolt 9 and locking nut 8 to prevent the weight of the drive motor 3 from directly acting on the reducer 4. One threaded plate 7 can be symmetrically installed on each side of the drive motor 3.

[0036] In another technical solution, a protective cover 6 is also provided around the drive motor 3, which together with the mounting bracket 1 forms a sealed space to enclose the drive motor 3, the reducer 4 and the eccentric wheel.

[0037] The protective cover 6 can prevent the stern from being hit by waves and seawater from corroding important components such as the drive motor 3 and the reducer 4.

[0038] This application involves assembling the entire machine first, with the drive system installed last. During installation, the first step is to connect the eccentric disc 5 to the roller base 13;

[0039] Step 2: Connect the reducer 4 to the eccentric disc 5 (to facilitate the adjustment of the center distance, initially install the connecting bolts in the mounting holes, which can be partially and evenly distributed around the circumference).

[0040] Step 3: Install the pinion 10 on the output shaft of the reducer 4;

[0041] Step 4: Rotate roller 12 to check the meshing of the large gear ring 11 and the small gear 10, and check if the center distance needs to be adjusted.

[0042] Step 5: Remove the connecting bolts between the reducer 4 and the eccentric disc 5, and between the eccentric disc 5 and the drum base 13. Rotate the eccentric disc 5 according to the meshing condition, and then repeat steps 1 to 4 until the center distance is adjusted so that the large gear ring 11 and the small gear 10 mesh without biting, without abnormal noise, and the gear clearance is appropriate (there is no impact when the drum 12 rotates in both directions).

[0043] Step 6: Install the drive motor 3 onto the reducer 4;

[0044] Step 7: Install the motor bracket, ensuring that the base plate of the mounting bracket 1 is fully fitted with the roller base 13 and the foot of the drive motor 3 is fully fitted with the side plate of the bracket, and then tighten it with bolts; install the tie rod 2 and the limit bolt 9 to limit the drive motor 3, preventing the gravity of the drive motor 3 and external loads from acting on the reducer 4, thus protecting the reducer 4.

[0045] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model, and other modifications can be easily made by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and examples shown and described herein.

Claims

1. A drive system for a high pressure hose reel, characterized by, The device includes a vertically mounted drive motor, a reducer connected to the drive motor, a pinion connected to the horizontal output shaft of the reducer, and a large gear ring meshing with the pinion. The large gear ring has teeth on its inner ring and a roller is fixedly connected to its outer circumference. A high-pressure hose is wound around the roller. The reducer is also equipped with an eccentric disc, the inner circle of which is connected to the reducer through multiple mounting holes on its outer circumference. The outer circle of the eccentric disc is also connected to the roller base through multiple mounting holes on its outer circumference. When the eccentric disc rotates, the center of the inner circle rotates around the center of the outer circle, thereby adjusting the center distance between the pinion and the large gear ring to the designed range to achieve normal meshing.

2. The drive system for high-pressure hose rollers as described in claim 1, characterized in that, The number of mounting holes on the outer circle of the eccentric disc is multiple of the number of mounting holes on the inner circle, and the mounting holes are evenly spaced around the outer circumference, thus ensuring that the reducer and motor are always in a vertical position when the eccentric disc is adjusted.

3. The drive system for high-pressure hose rollers as described in claim 1, characterized in that, The drive motor is mounted on the roller base via a mounting bracket. The mounting bracket includes an L-shaped base plate and a side plate. The base plate is fitted and fixed to the roller base, and the drive motor is arranged parallel to the side plate and fixedly connected to the side plate.

4. The drive system for high-pressure hose rollers as described in claim 3, characterized in that, The mounting bracket is also provided with a top plate, which forms a Z-shape with the bottom plate and side plates. One end of a tie rod is connected to the top plate by bolts, and the other end of the tie rod is connected to the drive motor.

5. The drive system for high-pressure hose rollers as described in claim 3, characterized in that, Multiple threaded plates are vertically arranged on the side, and limiting bolts are inserted inside them. The limiting bolts are locked by locking nuts. The limiting bolts are pressed against the drive motor housing from directly below the drive motor to share the weight of the drive motor.

6. The high-pressure hose drum drive system according to claim 3, characterized in that The drive motor is also surrounded by a protective cover, which, together with the mounting bracket, forms a sealed space to enclose the drive motor, reducer, and eccentric wheel.

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