Slurry pump speed reduction driving device
By setting a driving motor on the side of the mud pump and using a planetary reducer for transmission, the problems of low transmission efficiency and high radial force caused by the pulley assembly in the prior art are solved, and a more efficient and compact mud pump driving is achieved system.
Patent Information
- Application Number
- CN202421164455.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-27
AI Technical Summary
In the mud pump drive system in existing petroleum drilling equipment, the pulley assembly has problems such as large size, heavy mass, difficult to maintain, low transmission efficiency and large radial force, which affects the service life of the bearing.
A mud pump speed reduction drive device is designed, the driving motor is arranged on the side of the mud pump, and connected to the input shaft of the mud pump through a planetary reducer to achieve a compact structure and efficient transmission.
The device has a compact structure, small size, light weight, high transmission efficiency and small radial transmission power, which significantly improves the transmission efficiency and reduces the transmission radial force, and extends the service life of the bearing.
Smart Images
Figure CN222436947U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of petroleum drilling equipment, and more specifically to a mud pump speed reduction driving device. Background Art
[0002] At present, the driving layout of the mud pump for oil drilling is that the driving motor is arranged at the rear of the mud pump, the motor output shaft of the driving motor is parallel to the input shaft of the mud pump, and the two are decelerated and transmitted through a pulley assembly, and the pulley assembly is arranged at the side of the mud pump.
[0003] However, the pulley assembly is not only large in size and mass and difficult to maintain, but also has problems such as low transmission efficiency and large transmission radial force, which seriously affects the service life of the bearing.
[0004] In summary, how to improve transmission efficiency and reduce radial transmission force is a problem that needs to be solved urgently by those skilled in the art. Utility Model Content
[0005] In view of this, the purpose of the utility model is to provide a mud pump reduction drive device, in which the drive motor is arranged on the side of the mud pump, and the two are connected by a planetary reducer, with a compact structure, small size, light weight, high transmission efficiency and small radial transmission force.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A mud pump reduction drive device comprises a drive motor and a planetary reducer, wherein the drive motor and the planetary reducer are both arranged at the side of the mud pump, the motor output shaft of the drive motor is connected to the sun shaft of the planetary reducer, and the output shaft of the planetary reducer is connected to the input shaft of the mud pump.
[0008] Preferably, the motor output shaft and the sun shaft are connected via a coupling, a key shaft or a locking sleeve.
[0009] Preferably, the output shaft is connected to the input shaft of the mud pump via a coupling, a key shaft or a expansion sleeve.
[0010] Preferably, the driving motor is a variable frequency speed regulating motor so as to achieve stepless speed regulation of the mud pump.
[0011] Preferably, the driving motor and the planetary reducer are provided on both sides of the mud pump, and the driving motor and the planetary reducer are arranged in a one-to-one correspondence.
[0012] Preferably, a synchronous controller is further included, and the synchronous controller is connected to the motor control boards of the drive motors on both sides by signals to achieve synchronous regulation of the drive motors on both sides.
[0013] Preferably, it further comprises a mounting base, the driving motor and the planetary reducer are both mounted on the mounting base, and the mounting base is detachably connected to the mud pump base of the mud pump.
[0014] Preferably, a connecting ear plate is provided on the side of the mud pump base, and a mounting ear plate is provided on a side of the mounting base relatively close to the mud pump base, and the connecting ear plate and the mounting ear plate are connected by a pin shaft.
[0015] Preferably, two mutually parallel mounting ear plates are provided on the side surface of the mounting base, and the connecting ear plate is inserted between the two mounting ear plates.
[0016] The utility model provides a mud pump reduction drive device, in which the driving motor is arranged at the side of the mud pump, and the two are connected by a planetary reducer. Compared with the existing pulley transmission, not only the overall length of the device is shortened, the structure is compact, the volume is small, and the weight is light, but also the transmission efficiency is improved and the transmission radial force is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0018] Figure 1 A schematic structural diagram of a specific embodiment of the mud pump speed reduction drive device provided by the utility model;
[0019] Figure 2 It is a top view schematic diagram of the mud pump reduction drive device.
[0020] Figure 1-Figure 2 middle:
[0021] 01-mud pump; 011-input shaft; 012-mud pump base; 013-connecting ear plate; 1-planetary reducer; 11-reduction gear box; 12-fixed ring gear; 13-planetary gear; 14-sun gear; 15-planet carrier; 16-output shaft; 2-drive motor; 21-motor output shaft; 3-mounting base; 31-mounting ear plate; 4-fasteners, 5-coupling. DETAILED DESCRIPTION
[0022] 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.
[0023] The core of the utility model is to provide a mud pump reduction drive device, in which the drive motor is arranged at the side of the mud pump, and the two are connected through a planetary reducer, which has a compact structure, small size, light weight, high transmission efficiency and small radial transmission force.
[0024] The mud pump reduction drive device provided by the utility model comprises a driving motor 2 and a planetary reducer 1. The driving motor 2 and the planetary reducer 1 are both arranged at the side of the mud pump 01. The motor output shaft 21 of the driving motor 2 is connected to the sun shaft of the planetary reducer 1, and the output shaft 16 of the planetary reducer 1 is connected to the input shaft 011 of the mud pump 01.
[0025] The motor output shaft 21 of the drive motor 2 is connected to the sun shaft of the planetary reducer 1, and the two can be connected through a coupling 5, a key shaft such as a spline shaft or a expansion sleeve; the output shaft 16 of the planetary reducer 1 is connected to the input shaft 011 of the mud pump 01, and the two can be connected through a coupling 5, a key shaft or a expansion sleeve.
[0026] The specific connection method between the motor output shaft 21 and the sun shaft, and between the output shaft 16 and the input shaft 011 is determined according to the needs in actual production, such as the design connection strength requirements and the size of the installation space, and will not be repeated here.
[0027] The planetary reducer 1 is usually configured as a one-stage planetary reducer, and may also be configured as a two-stage or multi-stage planetary reducer as appropriate. However, it should be noted that an increase in the number of stages of the planetary reduction mechanism of the planetary reducer 1 will reduce its transmission efficiency.
[0028] Take planetary reducer 1 as an example, please refer to Figure 2 The planetary reducer 1 includes a reduction box body 11, the inner wall surface of the reduction box body 11 is provided with a fixed ring gear 12, the input end of the reduction box body 11 is provided with a sun shaft, and the sun shaft is sleeved with a sun gear 14, and the output end of the reduction box body 11 is provided with an output shaft 16, and the output shaft 16 is provided at one end of the planet carrier 15 relatively far away from the sun gear 14, and the planet carrier 15 is provided with a planetary gear 13, and the planetary gear 13 is meshed with the sun gear 14 and the fixed ring gear 12 at the same time.
[0029] When the driving motor 2 rotates, the motor output shaft 21 drives the sun gear 14 on the sun shaft to rotate, and the sun gear 14 drives the planetary gear 13 meshing with it to rotate. Under the constraints of the sun gear 14 and the fixed ring gear 12, the planetary gear 13 revolves around the sun gear 14 while rotating on itself. The revolution of the planetary gear 13 drives the planetary carrier 15 to rotate, and the planetary carrier 15 drives the output shaft 16 to rotate. The output shaft 16 drives the mud pump 01 to rotate through the input shaft 011.
[0030] The type and model of the driving motor 2, and the type and reduction ratio of the planetary reducer 1 are determined according to the design working conditions of the mud pump 01 in actual production, and will not be described in detail here.
[0031] In this embodiment, the drive motor 2 is arranged on the side of the mud pump 01, and the two are connected through a planetary reducer 1. Compared with the existing pulley transmission, it not only reduces the overall length of the device, has a compact structure, small size, and light weight, but also improves the transmission efficiency and reduces the transmission radial force.
[0032] Preferably, the driving motor 2 can be set as a variable frequency speed regulating motor, which can achieve stepless speed regulation, and thus can achieve stepless speed regulation of the mud pump 01.
[0033] The specific model of the variable frequency speed regulating motor, such as output power, speed range, etc., is determined according to the design working conditions of the mud pump 01 in actual production and will not be described in detail here.
[0034] A driving motor 2 and a corresponding planetary reducer 1 form a set of reduction driving devices. The reduction driving device can be provided on only one side of the mud pump 01 , or on both the left and right sides of the mud pump 01 .
[0035] Based on the above examples, please refer to Figure 2 A driving motor 2 and a planetary reducer 1 are provided on both sides of the mud pump 01, and the driving motor 2 and the planetary reducer 1 are arranged in a one-to-one correspondence.
[0036] It should be noted that when both sides of the mud pump 01 are provided with reduction drive devices, in order to ensure the normal operation of the mud pump 01, it is necessary to ensure that the output speed and output torque of the reduction drive devices on both sides are the same.
[0037] In this embodiment, a reduction drive device is provided on both sides of the mud pump 01, which can reduce the output torque of the reduction drive device on each side, thereby reducing the power requirement for the drive motor 2, thereby reducing the equipment cost.
[0038] In order to facilitate the output control of the reduction drive devices on both sides, it is usually set that the drive motors 2 of the reduction drive devices on both sides are of the same type and model, and the planetary reducers 1 are of the same type and model.
[0039] The driving motors 2 of the reduction driving devices on both sides can be respectively connected to the motion control system signals of the mud pump 01, and the above motion control system independently controls the driving motors 2 on both sides;
[0040] A synchronous controller can also be provided, and the synchronous controller is connected to the motor control board signals of the drive motors 2 on both sides, and then the synchronous controller is connected to the motion control system signals of the mud pump 01. The synchronous controller is used to realize synchronous adjustment of the drive motors 2 on both sides to avoid problems such as response time difference of independent control.
[0041] Taking into account that the height of the input shaft 011 of the mud pump 01 from the mounting surface of the mud pump 01 is usually high, on the basis of the above embodiment, a mounting base 3 can also be provided, and the drive motor 2 and the planetary reducer 1 are both mounted on the mounting base 3, and the mounting base 3 is detachably connected to the mud pump base 012 of the mud pump 01.
[0042] The mounting base 3 is used to install and fix the drive motor 2 and the planetary reducer 1. Both the drive motor 2 and the planetary reducer 1 can be connected to the mounting base 3 by fasteners 4 such as fastening bolts and fastening pins to facilitate replacement and maintenance of the two.
[0043] The structure and height of the mounting base 3 are determined according to the height difference between the output shaft 16 of the planetary reducer 1 and the input shaft 011 of the mud pump 01 and the height difference between the motor output shaft 21 of the drive motor 2 and the sun shaft of the planetary reducer 1 in actual production, so as to ensure that the motor output shaft 21 and the sun shaft are coaxially arranged, and the output shaft 16 and the input shaft 011 are coaxially arranged;
[0044] The cross-sectional shape and size of the mounting base 3 are determined according to the structures and sizes of the drive motor 2 and the planetary reducer 1 , so that the projections of the drive motor 2 and the planetary reducer 1 in the vertical direction can both fall within the mounting base 3 .
[0045] In order to facilitate the maintenance and overhaul of the drive motor 2 and the planetary reducer 1, a detachable connection between the mounting base 3 and the mud pump base 012 of the mud pump 01 is required so that during maintenance and overhaul, the connection between the mud pump base 012 and the mounting base 3 can be disconnected to obtain a larger operating space.
[0046] The mounting base 3 and the mud pump base 012 can be connected specifically by common connecting parts such as connecting bolts and connecting pins. The specific number, structure, size and setting position of the connecting parts are determined through connection strength verification calculation according to actual production needs to ensure the connection stability of the mounting base 3 and the mud pump base 01.
[0047] In this embodiment, the mounting base 3 makes up for the height difference between the motor output shaft 21 and the sun shaft, ensuring that the two are coaxially arranged; and makes up for the height difference between the output shaft 16 and the input shaft 011, ensuring that the two are coaxially arranged.
[0048] Preferably, a connecting ear plate 013 can be provided on the side of the mud pump base 012, and a mounting ear plate 31 can be provided on the side of the mounting base 3 relatively close to the mud pump base 012. The connecting ear plate 013 and the mounting ear plate 31 are connected by a pin shaft, and the connection structure is simple and the connection is relatively stable.
[0049] To further improve connection stability, please refer to Figure 2 Two parallel mounting ear plates 31 can be provided on the side of the mounting base 3, and the connecting ear plate 013 is plugged between the two connecting ear plates 31. The above plug-in structure can enhance the connection stability and reliability.
[0050] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0051] The above is a detailed introduction to the mud pump deceleration drive device provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
Claims
1. A mud pump speed reduction drive device, characterized in that: The invention comprises a drive motor (2) and a planetary reducer (1), wherein the drive motor (2) and the planetary reducer (1) are both arranged at the side of a mud pump (01), the motor output shaft (21) of the drive motor (2) is connected to the sun shaft of the planetary reducer (1), and the output shaft (16) of the planetary reducer (1) is connected to the input shaft (011) of the mud pump (01).
2. The mud pump speed reduction drive device according to claim 1, characterized in that: The motor output shaft (21) and the sun shaft are connected via a coupling (5), a key shaft or a tightening sleeve.
3. The mud pump speed reduction drive device according to claim 1, characterized in that: The output shaft (16) is connected to the input shaft (011) of the mud pump (01) via a coupling (5), a key shaft or a locking sleeve.
4. The mud pump speed reduction drive device according to claim 1, characterized in that: The driving motor (2) is a variable frequency speed regulating motor so as to achieve stepless speed regulation of the mud pump (01).
5. The mud pump speed reduction drive device according to any one of claims 1 to 4, characterized in that: The driving motor (2) and the planetary reducer (1) are provided on both sides of the mud pump (01), and the driving motor (2) and the planetary reducer (1) are arranged in a one-to-one correspondence.
6. The mud pump speed reduction drive device according to claim 5, characterized in that: It also comprises a synchronous controller, which is connected to the motor control boards of the drive motors (2) on both sides by signals, so as to achieve synchronous regulation of the drive motors (2) on both sides.
7. The mud pump speed reduction drive device according to any one of claims 1 to 4, characterized in that: It also includes a mounting base (3), the drive motor (2) and the planetary reducer (1) are both mounted on the mounting base (3), and the mounting base (3) is detachably connected to a mud pump base (012) of the mud pump (01).
8. The mud pump speed reduction drive device according to claim 7, characterized in that: A connecting ear plate (013) is provided on the side of the mud pump base (012), and a mounting ear plate (31) is provided on the side of the mounting base (3) relatively close to the mud pump base (012), and the connecting ear plate (013) and the mounting ear plate (31) are connected via a pin shaft.
9. The mud pump speed reduction drive device according to claim 8, characterized in that: Two mutually parallel mounting ear plates (31) are provided on the side surface of the mounting base (3), and the connecting ear plate (013) is plugged between the two mounting ear plates (31).