Safe large-scale variable-frequency motor for petroleum drilling

Abstract

The invention discloses a safe large variable-frequency motor for petroleum drilling, which comprises a motor body, a mounting plate is fixedly mounted below the motor body, a cushioning assembly is arranged below the mounting plate, the cushioning assembly comprises a U-shaped plate, a rubber block and an adjusting plate frame, the U-shaped plate is arranged above the rubber block, and the rubber block is arranged above the U-shaped plate. The adjusting plate frame is arranged below the rubber block, an upper groove is formed in the lower end face of the U-shaped plate, a lower groove is formed in the upper end face of the adjusting plate frame, and the upper end and the lower end of the rubber block are arranged in the upper groove of the U-shaped plate and the lower groove of the adjusting plate frame respectively. The capacity of buffering operation vibration of the motor is achieved, practicability is improved, and therefore the problem that the operation stability of the motor is affected due to the fact that large vibration is generated in the operation process of the motor is solved.

Description

Technical Field

[0001] The invention relates to the technical field of electric motors, in particular to a large variable frequency electric motor for safe oil drilling. Background Art

[0002] Safe oil drilling is a general term for the safety of oil drilling operations. It refers to the use of special equipment and technology to drill a cylindrical hole of a certain diameter downward or to one side at a pre-selected surface location and drill to the underground oil and gas layer during the oil exploration and development process to ensure the safety of the operation process. Large variable frequency motors are commonly used equipment in safe oil drilling; For example, the patent with announcement number CN212909148U (an asynchronous variable frequency adjustment motor for a large pump): comprises a motor body, a mounting seat is arranged on the side wall on the lower side of the motor body, a rectangular frame plate is fixedly connected to the side wall on the upper side of the mounting seat, a fixing plate is fixedly connected to the side wall on the lower side of the motor body, the fixing plate is inserted into the rectangular frame plate, the side walls on the left and right sides of the rectangular frame plate are provided with plug holes, the same screw rod is movably sleeved in the two plug holes, both ends of the screw rod extend out of the rectangular frame plate, the left end of the screw rod is fixedly connected to a baffle plate, the side wall on the left side of the fixing plate is provided with a pin hole, and the screw rod passes through the fixing plate through the pin hole; Although the above-mentioned prior art improves the convenience of motor disassembly and maintenance, it does not have shock absorption capability, and thus will produce large vibrations during the operation of the motor, affecting the stability of the motor operation; therefore, the market urgently needs to develop a large-scale variable frequency motor for safe oil drilling to help people solve the existing problems. Summary of the invention

[0003] The purpose of the present invention is to provide a large variable frequency motor for safe oil drilling, so as to solve the problem in the above background technology that large vibration will be generated during the operation of the motor, affecting the stability of the motor operation.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a large-scale variable frequency motor for safe oil drilling, comprising a motor body, a mounting plate fixedly mounted below the motor body, a shock absorbing assembly arranged below the mounting plate, the shock absorbing assembly comprising a U-shaped plate, a rubber block and an adjusting plate frame, the U-shaped plate being arranged above the rubber block, the adjusting plate frame being arranged below the rubber block, an upper groove being arranged on the lower end surface of the U-shaped plate, a lower groove being arranged on the upper end surface of the adjusting plate frame, the upper end and the lower end of the rubber block being respectively placed in the upper groove of the U-shaped plate and the lower groove of the adjusting plate frame.

[0005] Preferably, a plurality of fixing bolts are arranged below the adjusting plate frame, the screw ends of the fixing bolts slide through the adjusting plate frame, the rubber block and the U-shaped plate in sequence, and a fixing nut is installed on the outer side of the screw end of the fixing bolt along the upper thread of the U-shaped plate.

[0006] Preferably, a compression spring is arranged on the outer side of the screw end of the fixing bolt along the lower side of the adjusting plate frame, and a spring bottom plate is arranged on the lower side of the compression spring along the outer side of the screw end of the fixing bolt, the spring bottom plate is in contact with the head of the fixing bolt, a bottom groove is arranged on the upper end surface of the spring bottom plate, and the lower end of the compression spring extends into the interior of the bottom groove.

[0007] Preferably, a sleeve is fixedly installed in the middle of the rubber block, the upper end of the sleeve passes through the U-shaped plate, the lower end of the sleeve passes through the adjustment plate frame, a column is arranged inside the sleeve, and the column passes through the sleeve, and the upper end of the column is fixedly connected to the mounting plate.

[0008] Preferably, hydraulic cylinders are symmetrically arranged on both sides below the adjustment plate frame, a bottom plate is arranged below the hydraulic cylinders, a piston rod end of the hydraulic cylinder is fixedly connected to the adjustment plate frame, and the other end of the hydraulic cylinder is fixedly connected to the bottom plate.

[0009] Preferably, guide assemblies are symmetrically arranged on both sides between the adjustment plate frame and the base plate, and the guide assemblies include a guide cylinder and a guide column. The guide column is arranged above the guide cylinder, and the lower end of the guide column extends into the interior of the guide cylinder. The upper end of the guide column is fixedly connected to the adjustment plate frame, and the lower end of the guide cylinder is fixedly connected to the base plate.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. The invention improves the shock absorption capacity of the equipment by setting a shock-absorbing component. The U-shaped plate, rubber block and adjustment plate frame in the shock-absorbing component cooperate with each other. The design of placing the rubber block in the upper groove and the lower groove effectively absorbs the vibration energy, ensuring that the motor can still run smoothly under complex working conditions, extending the service life of the equipment, improving the stability of the motor operation, and increasing practicality.

[0011] 2. This invention not only further strengthens the overall structure of the shock-absorbing assembly and ensures the stability of the motor body on the mounting plate by adjusting the multiple fixing bolts and their matching fixing nuts, compression springs and spring base plates arranged under the plate frame, but also provides a certain adjustment space for the shock-absorbing assembly through the elastic action of the compression springs, which can automatically adjust the shock-absorbing effect under certain working conditions, thereby enhancing the adaptability of the motor to different environments.

[0012] 3. The invention provides a hydraulic cylinder, and the extension and retraction of the piston rod of the hydraulic cylinder can adjust the height of the adjustment plate frame, thereby facilitating the adjustment of the height position of the motor, thereby increasing practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view of a large variable frequency motor for safe oil drilling of the present invention; Figure 2 It is a cross-sectional view of the U-shaped plate, the rubber block and the adjusting plate frame of the present invention; Figure 3 It is an enlarged schematic diagram of the A part of the present invention; Figure 4 It is a cross-sectional view of the guide assembly of the present invention.

[0014] In the figure: 1. Motor body; 2. Mounting plate; 3. U-shaped plate; 4. Rubber block; 5. Adjustment plate frame; 6. Bottom plate; 7. Hydraulic cylinder; 8. Guide assembly; 801. Guide cylinder; 802. Guide column; 9. Fixing bolt; 10. Fixing nut; 11. Spring bottom plate; 1101. Bottom groove; 12. Compression spring; 13. Column; 14. Sleeve. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0016] See also Figure 1-4 An embodiment of the present invention is as follows: a large variable frequency motor for safe oil drilling comprises a motor body 1, the motor body 1 is a large variable frequency motor, a mounting plate 2 is fixedly mounted below the motor body 1, a damping assembly is arranged below the mounting plate 2, the damping assembly comprises a U-shaped plate 3, a rubber block 4 and an adjusting plate frame 5, the U-shaped plate 3 is arranged above the rubber block 4, the adjusting plate frame 5 is arranged below the rubber block 4, an upper groove is arranged on the lower end surface of the U-shaped plate 3, a lower groove is arranged on the upper end surface of the adjusting plate frame 5, the upper end and the lower end of the rubber block 4 are respectively placed in the upper groove of the U-shaped plate 3 and the lower groove of the adjusting plate frame 5.

[0017] By setting up the shock absorbing component, with the cooperation of the U-shaped plate 3, the rubber block 4 and the adjusting plate frame 5, not only the stability of the motor body 1 on the mounting plate 2 is ensured, but also a shock absorbing structure is formed by the tight embedding of the rubber block 4 in the upper groove and the lower groove. When the motor is running, it can effectively absorb and disperse the vibration energy from all directions, reduce the vibration amplitude of the motor during operation, thereby greatly improving the stability and reliability of operation, which not only prolongs the service life of the motor and its accessories, reduces the failure rate caused by vibration, but also provides more stable and efficient power support for oil drilling operations, ensuring the safety and efficiency of the entire drilling process.

[0018] Furthermore, a plurality of fixing bolts 9 are arranged below the adjusting plate frame 5, and the screw ends of the fixing bolts 9 slide through the adjusting plate frame 5, the rubber block 4 and the U-shaped plate 3 in sequence, and a fixing nut 10 is installed on the outer side of the screw end of the fixing bolt 9 along the upper thread of the U-shaped plate 3, and a compression spring 12 is arranged on the outer side of the screw end of the fixing bolt 9 along the lower side of the adjusting plate frame 5, and a spring bottom plate 11 is arranged below the compression spring 12 along the outer side of the screw end of the fixing bolt 9, the spring bottom plate 11 is in contact with the head of the fixing bolt 9, and a bottom groove 1101 is arranged on the upper end surface of the spring bottom plate 11, and the lower end of the compression spring 12 extends into the interior of the bottom groove 1101.

[0019] The arrangement of the fixing bolt 9 and its matching fixing nut 10, the compression spring 12 and the spring base plate 11 not only further strengthens the overall structure of the shock-absorbing assembly and ensures the stability of the motor body 1 on the mounting plate 2, but also provides a certain adjustment space for the shock-absorbing assembly through the elastic action of the compression spring 12, and can automatically adjust the shock-absorbing effect under certain working conditions, thereby enhancing the adaptability of the motor to different environments.

[0020] Furthermore, a sleeve 14 is fixedly installed in the middle of the rubber block 4, the upper end of the sleeve 14 passes through the U-shaped plate 3, the lower end of the sleeve 14 passes through the adjustment plate frame 5, a column 13 is arranged inside the sleeve 14, and the column 13 passes through the sleeve 14, and the upper end of the column 13 is fixedly connected to the mounting plate 2.

[0021] The sleeve 14 fixedly installed inside the rubber block 4 and the column 13 inside it increase the vertical guidance of the shock-absorbing component. The elastic deformation of the rubber block 4 around the column 13 improves the shock-absorbing effect, reduces the vibration transmission in the vertical direction, and helps to extend the service life of the motor and its accessories.

[0022] Furthermore, hydraulic cylinders 7 are symmetrically arranged on both sides below the adjusting plate frame 5 , a bottom plate 6 is arranged below the hydraulic cylinders 7 , a piston rod end of the hydraulic cylinder 7 is fixedly connected to the adjusting plate frame 5 , and the other end of the hydraulic cylinder 7 is fixedly connected to the bottom plate 6 .

[0023] The hydraulic cylinder 7 disposed below the adjusting plate frame 5 and the connection with the bottom plate 6 and the telescopic function of the hydraulic cylinder 7 facilitate the adjustment of the height of the adjusting plate frame 5 according to actual needs, thereby adjusting the height position of the motor, thereby increasing practicality.

[0024] Furthermore, guide assemblies 8 are symmetrically arranged on both sides between the adjustment plate frame 5 and the base plate 6, and the guide assembly 8 includes a guide cylinder 801 and a guide column 802. The guide column 802 is arranged above the guide cylinder 801, and the lower end of the guide column 802 extends into the interior of the guide cylinder 801. The upper end of the guide column 802 is fixedly connected to the adjustment plate frame 5, and the lower end of the guide cylinder 801 is fixedly connected to the base plate 6.

[0025] The guide assembly 8 disposed between the adjusting plate frame 5 and the bottom plate 6 limits the displacement of the adjusting plate frame 5 in the horizontal direction through the cooperation of the guide cylinder 801 and the guide column 802, thereby ensuring the stability of the hydraulic cylinder 7 when pushing the adjusting plate frame 5 to move up and down.

[0026] Working principle: When in use, the motor body 1 is installed on the mounting plate 2, and the shock-absorbing component below it is composed of a U-shaped plate 3, a rubber block 4 and an adjusting plate frame 5. The rubber block 4 is tightly embedded in the upper and lower grooves of the U-shaped plate 3 and the adjusting plate frame 5 to form a shock-absorbing structure, which effectively absorbs and disperses the vibration energy during the operation of the motor. In addition, the fixing bolts 9, compression springs 12 and spring base plates 11 arranged below the adjusting plate frame 5 not only strengthen the structure of the shock-absorbing component, but also provide a certain adjustment space for the shock-absorbing component through the elastic action of the compression spring 12, which can automatically adjust the shock-absorbing effect under some working conditions and enhance environmental adaptability. The telescopic function of the hydraulic cylinder 7 is convenient for adjusting the height position of the motor according to actual needs, thereby increasing practicality.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A large variable frequency motor for safe oil drilling, comprising a motor body (1), characterized in that: A mounting plate (2) is fixedly mounted below the motor body (1); a shock absorbing assembly is arranged below the mounting plate (2); the shock absorbing assembly comprises a U-shaped plate (3), a rubber block (4) and an adjusting plate frame (5); the U-shaped plate (3) is arranged above the rubber block (4); the adjusting plate frame (5) is arranged below the rubber block (4); an upper groove is arranged on the lower end surface of the U-shaped plate (3); a lower groove is arranged on the upper end surface of the adjusting plate frame (5); the upper end and the lower end of the rubber block (4) are respectively placed in the upper groove of the U-shaped plate (3) and the lower groove of the adjusting plate frame (5).

2. A large variable frequency motor for safe oil drilling according to claim 1, characterized in that: A plurality of fixing bolts (9) are arranged below the adjusting plate frame (5), and the screw ends of the fixing bolts (9) slide through the adjusting plate frame (5), the rubber block (4) and the U-shaped plate (3) in sequence, and fixing nuts (10) are installed on the outer sides of the screw ends of the fixing bolts (9) along the upper threads of the U-shaped plate (3).

3. A large variable frequency motor for safe oil drilling according to claim 2, characterized in that: A compression spring (12) is arranged below the adjustment plate frame (5) on the outer side of the screw end of the fixing bolt (9), and a spring bottom plate (11) is arranged below the compression spring (12) along the outer side of the screw end of the fixing bolt (9). The spring bottom plate (11) is in contact with the head of the fixing bolt (9), and a bottom groove (1101) is arranged on the upper end surface of the spring bottom plate (11), and the lower end of the compression spring (12) extends into the interior of the bottom groove (1101).

4. A large variable frequency motor for safe oil drilling according to claim 3, characterized in that: A sleeve (14) is fixedly installed in the middle of the rubber block (4), the upper end of the sleeve (14) passes through the U-shaped plate (3), the lower end of the sleeve (14) passes through the adjustment plate frame (5), a column (13) is arranged inside the sleeve (14), and the column (13) passes through the sleeve (14), and the upper end of the column (13) is fixedly connected to the mounting plate (2).

5. A large variable frequency motor for safe oil drilling according to claim 1, characterized in that: Hydraulic cylinders (7) are symmetrically arranged on both sides below the adjustment plate frame (5), a bottom plate (6) is arranged below the hydraulic cylinders (7), a piston rod end of the hydraulic cylinder (7) is fixedly connected to the adjustment plate frame (5), and the other end of the hydraulic cylinder (7) is fixedly connected to the bottom plate (6).

6. A large variable frequency motor for safe oil drilling according to claim 5, characterized in that: Guide assemblies (8) are symmetrically arranged on both sides between the adjustment plate frame (5) and the bottom plate (6), the guide assembly (8) comprising a guide cylinder (801) and a guide post (802), the guide post (802) being arranged above the guide cylinder (801), and the lower end of the guide post (802) extending into the interior of the guide cylinder (801), the upper end of the guide post (802) being fixedly connected to the adjustment plate frame (5), and the lower end of the guide cylinder (801) being fixedly connected to the bottom plate (6).

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