Lift box with noise reduction function

Abstract

The invention discloses a lifting box with a noise reduction function. The lifting box comprises a mounting plate, a lifting box body arranged on the mounting plate, and a noise reduction assembly for reducing noise of the lifting box body. A motor connected with an input shaft of the distance lifting box body is arranged below the distance lifting box body, a supporting plate for installing the motor is arranged below the distance lifting box body, and an electric control box for controlling starting and stopping of the motor is arranged on the installing plate. The noise reduction assembly comprises a vertical damping device arranged on the top face of the lift box body and a horizontal damping device arranged on the mounting plate and the supporting plate. The noise reduction assembly is arranged, and the noise reduction assembly is composed of the vertical damping device and the horizontal damping device, so that the vibration force of the distance lifting box body in the vertical direction can be reduced, the vibration force of the distance lifting box body in the horizontal direction can also be reduced, the noise generated when the distance lifting box works is further reduced, and the transmission efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the field of petroleum production and repair equipment, and in particular relates to a lifting box with a noise reduction function. Background Art

[0002] The gearbox is a crucial transmission component in oil well servicing rigs, oil recovery vehicles, and other oilfield equipment. However, in actual operation, the gearbox faces severe vibration issues. Due to the complex and harsh operating environment of oilfield servicing, the gearbox is subject to vibrations caused by a variety of factors during operation. These include the cyclical forces of the power system during operation, the jerking of equipment caused by the complex geological conditions at the worksite, and the mechanical friction and impact of the gearbox's internal transmission components. Continuous vibration accelerates wear of the gearbox's internal components, reduces transmission accuracy, affects the normal operation and service life of the equipment, and increases maintenance costs and downtime.

[0003] To achieve the above objectives, the specific technical solution of a lifting box with noise reduction function of the present invention is as follows:

[0004] A lifting box with a noise reduction function includes a mounting plate, a lifting box body arranged on the mounting plate, and a noise reduction assembly for reducing the noise of the lifting box body. A motor connected to the input shaft of the lifting box body is provided below the lifting box body, and a support plate for installing the power supply motor is provided below the lifting box body, and an electric control box for controlling the opening and closing of the motor is provided on the mounting plate. The noise reduction assembly includes a vertical vibration reduction device provided on the top surface of the lifting box body and a horizontal vibration reduction device provided on the mounting plate and the support plate. The vertical vibration reduction device includes fixed plates distributed on the top surface of the lifting box body, and each fixed plate is provided with a first spring, and a vibration absorbing body is provided at the top end of the first spring. The horizontal vibration reduction device includes a buffer group provided on the mounting plate on both sides of the lifting box body, and the buffer group cooperates with the corresponding side walls of the lifting box body.

[0005] Furthermore, the vibration absorbing body includes a weight box arranged on the first spring, and a weight block is placed in the weight box. A cover plate is rotatably arranged on the weight box.

[0006] Furthermore, a partition is provided in the weight box.

[0007] Furthermore, the buffer assembly includes a powered base mounted on a mounting plate and a nebulium magnet mounted on the outer wall of the lift box body, with the powered base and nebulium magnet positioned correspondingly. An outer cover is mounted on the powered base, with a metal rod positioned within the outer cover. An electromagnetic coil is also mounted on the powered base, with the metal rod positioned within the electromagnetic coil. The outer cover of the buffer assembly has an opening on one side corresponding to the lift box body, and the inner wall of the outer cover is coated with a graphene layer.

[0008] Furthermore, a noise reduction unit is mounted on the output shaft of the lift box body, and the noise reduction unit includes an eccentric block rotatably mounted on the output shaft of the lift box body via a bearing. The eccentric block has a placement opening, and a stabilizing groove is formed on the side wall of the placement opening. A counterweight is slidably mounted within the placement opening, and a guide block is formed on the counterweight that slides in the stabilizing groove. A fixed shaft is disposed within the placement opening, and the counterweight and the fixed shaft are slidably mounted. A second spring is sleeved on the fixed shaft between the counterweight and the top surface of the placement opening.

[0009] Furthermore, buffer groups are provided on both sides of the support plate on the lifting box body.

[0010] The lifting box with noise reduction function of the present invention has the following advantages:

[0011] 1. The present invention provides a noise reduction component, and the noise reduction component is composed of a vertical vibration reduction device and a horizontal vibration reduction device, which can reduce the vibration force of the lifting box body in the vertical direction and the horizontal direction, further reducing the noise of the lifting box during operation and improving the transmission efficiency.

[0012] 2. The present invention provides a noise reduction portion on the output shaft of the lift box body, thereby reducing the vibration of the output shaft of the lift box body, thereby improving the noise reduction effect of the lift box. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a lift box with noise reduction function according to the present invention;

[0014] Figure 2 This is a schematic structural diagram of the vibration absorber, spring and fixing plate of the present invention;

[0015] Figure 3 Schematic diagram of the buffer portion of the present invention;

[0016] Figure 4 Schematic diagram of the output shaft and noise reduction unit of the present invention;

[0017] Figure 5 Schematic diagram of the noise reduction unit of the present invention.

[0018] Description of the marks in the figure:

[0019] 1. Mounting plate; 2. Lift box body; 201. Input shaft; 202. Output shaft; 3. Support plate; 4. Motor; 5. Electric control box; 6. Weight box; 7. Partition; 8. Weight block; 9. First spring; 10. Fixed plate; 11. Cover; 12. Power base; 13. Outer cover; 14. Metal rod; 15. Electromagnetic coil; 16. Neodymium magnet; 17. Eccentric block; 18. Bearing; 19. Placement port; 20. Fixed shaft; 21. Stabilizing groove; 22. Counterweight block; 23. Guide block; 24. Second spring. DETAILED DESCRIPTION

[0020] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of a lifting box with noise reduction function of the present invention with reference to the accompanying drawings.

[0021] like Figures 1 to 5 As shown, a lifting box with a noise reduction function according to the present invention includes a mounting plate 1, a lifting box body arranged on the mounting plate 1, and a noise reduction component for reducing the noise of the lifting box body 2. When the lifting box body 2 is working, the noise reduction component will work accordingly, and the noise reduction effect of the lifting box body 2 can be achieved through the noise reduction component. Specifically, a motor 4 connected to the input shaft 201 of the lifting box body 2 is provided below the lifting box body 2, and a support plate 3 for installing the power supply 4 is provided below the lifting box body 2, and an electric control box 5 for controlling the opening and closing of the motor 4 is provided on the mounting plate 1, and an external power supply is connected to the motor 4 through the electric control box 5. The motor 4 is then controlled to start by the electric control box 5. After the motor 4 starts, it will drive the input shaft 201 of the lifting box body 2 to rotate, and the output shaft 202 of the lifting box body 2 will also rotate due to the rotation of its internal gears.

[0022] The noise reduction assembly for reducing the noise of the lift box body 2 includes a vertical vibration reduction device provided on the top surface of the lift box body 2 and a horizontal vibration reduction device provided on the mounting plate 1 and the support plate 3. The vertical vibration reduction device and the horizontal vibration reduction device can reduce the vertical vibration force of the lift box body 2 and the horizontal vibration force of the lift box body 2. In this way, when the vibration force of the lift box body 2 is reduced, the noise generated by its vibration is also reduced, effectively improving the practicality of the lift box.

[0023] like Figure 1 and Figure 2 As shown, the vertical vibration damping device includes fixed plates 10 distributed on the top surface of the lift box body 2. Each fixed plate 10 is equipped with a first spring 9, and a vibration absorber is installed at the top of the first spring 9. Specifically, the fixed plates 10 are evenly distributed at the four corners of the top surface of the lift box body 2, and each fixed plate 10 is equipped with a first spring 9. The four fixed plates 10 and the corresponding first springs 9 improve the connection stability of the vibration absorber relative to the lift box body 2.

[0024] When the lift box body 2 is working, the fixed plate 10 arranged on the lift box body 2 will vibrate along with the lift box body 2, and the vibration force will be transmitted to the vibration absorbing body through the first spring 9, and the vibration directions between the vibration absorbing body and the lift box body 2 are opposite, thereby achieving the effect of shock absorption and noise reduction of the lift box body 2.

[0025] The vibration absorbing body provided on the first spring 9 includes a weight box 6 provided on the first spring 9, wherein a weight block 8 is placed in the weight box 6, and a cover plate 11 is rotatably provided on the weight box 6. The weight of the weight is adjusted according to actual needs to achieve the optimal effect, and the opening of the weight box 6 is sealed with the cover plate 11 to prevent the weight block 8 inside from escaping from the weight box 6. At the same time, a partition 7 is also provided in the weight box 6, and the partition 7 is a cross partition. The partition 7 can evenly divide the internal space of the weight box 6, thereby facilitating the even distribution of the weight block 8, so that the weight box 6 maintains a stable vibration absorption and noise reduction effect relative to the lifting box body 2.

[0026] Preferably, the horizontal vibration damping device includes a buffer group mounted on the mounting plate 1 on both sides of the lift box body 2. The buffer group cooperates with the corresponding side walls of the lift box body 2. The buffer group can reduce the horizontal vibration of the lift box body 2 during operation, further reducing the noise generated by the lift box body 2. Specifically, the buffer group for reducing the horizontal vibration of the lift box body 2 includes a powered base 12 mounted on the mounting plate 1 and a rubidium magnet 16 mounted on the outer wall of the lift box body 2. The powered base 12 and the rubidium magnet 16 are arranged correspondingly, and the powered base 12 is connected to the electrical control box 5. Furthermore, the powered base 12 is provided with an outer cover 13, within which a metal rod 14 is disposed. Furthermore, an electromagnetic coil 15 is provided on the powered base 12, within which the metal rod 14 is disposed. It should be noted that the outer cover 13 of the buffer group has an opening on both sides corresponding to the lift box body 2, and the inner wall of the outer cover 13 is coated with a graphene layer.

[0027] The electrical control box 5 energizes the power base 12, and the electromagnetic coil 15 mounted on the power base 12 is energized, generating magnetic force. The inner wall of the outer cover 13 is coated with a graphene layer, which converts the electromagnetic force generated by the electromagnetic coil 15 from radiating in all directions to radiating toward the housing opening, fully concentrating the electromagnetic force. This concentrated electromagnetic force then generates a repulsive force between the corresponding rubidium magnet 16. Buffer groups are provided on both sides of the lift box body 2. The electromagnetic force between the electromagnetic coil 15 and the rubidium magnet 16 in the opposing buffer groups improves the stability of the lift box body 2. Furthermore, the electromagnetic force of the buffer groups opposes the vibration force of the lift box body 2, thereby reducing the vibration frequency of the lift box body 2 and achieving noise reduction.

[0028] Among them, the electromagnetic coil 15 is an electromagnetic solenoid. The magnitude of its magnetic force can be controlled by the magnitude of the voltage and current connected to the electromagnetic coil 15. When the current is increased, the magnetic force also increases, and vice versa. It is also possible to operate alternating current or direct current to change the direction of the magnetic force, thereby achieving an adjustable effect. At the same time, the metal rod 14 inside it can enhance or reduce its magnetic force by changing the material, such as copper rod, iron rod, etc. It should be noted that the powered base 12 is provided with an insulating shell to ensure its safety during operation. In addition, the rubidium magnet 16 is detachably connected to the lifting box body 2 by bolts. The rubidium magnet 16 can provide a strong magnetic field to the lifting box body 2, and then the controllability of the lateral vibration damping is achieved by changing the magnitude of the magnetic force of the electromagnetic coil 15.

[0029] As a further improvement, buffer groups are also provided on both sides of the lift box body 2 on the support plate 3. The cooperation between the buffer groups on the support plate 3 and the buffer groups on the mounting plate 1 can improve the stability of the lift box body 2 relative to the mounting plate 1 and the support plate 3, reduce the vibration of the lift box body 2, and reduce noise.

[0030] As another preferred embodiment, a noise reduction unit is provided on the output shaft 202 of the lift box body 2. This noise reduction unit can reduce the vibration of the output shaft 202 of the lift box body 2, thereby improving the noise reduction effect of the lift box. Specifically, the noise reduction unit includes an eccentric weight 17 rotatably mounted on the output shaft 202 of the lift box body 2 via a bearing 18. The eccentric weight 17 is located within the housing of the lift box body 2. A placement opening 19 is formed on the eccentric weight 17, and a stabilizing groove 21 is formed on the side wall of the placement opening 19. A counterweight 22 is slidably disposed within the placement opening 19, and a guide block 23 is formed on the counterweight 22 to slide with the stabilizing groove 21. Furthermore, a fixed shaft 20 is provided within the placement opening 19. The counterweight 22 slides with the fixed shaft 20, and a second spring 24 is sleeved on the fixed shaft 20 between the counterweight 22 and the top surface of the placement opening 19.

[0031] As the output shaft 202 rotates, the eccentric mass 17 naturally droops via the bearing 18. The resulting vibrations drive the eccentric mass 17 through the bearing 18, causing the counterweight 22 attached to the eccentric mass 17 to vibrate accordingly, acting in concert with the second spring 24. The interaction between the counterweight 22 and the second spring 24 dampens vibrations on the output shaft 202, thereby reducing noise from the lift box body 2. It should be noted that the counterweight 22, which slides into the receiving opening 19, is replaceable, and the optimal vibration absorption effect can be achieved by adjusting the weight of the counterweight 22.

[0032] Instructions for use: When the motor 4 drives the lift box body 2 to operate, the vertical vibration damping device installed on the top surface of the lift box body 2 can reduce the vertical vibration force of the lift box body 2, and the horizontal vibration damping device installed on the mounting plate 1 and the support plate 3 can reduce the horizontal vibration force of the lift box body 2. The combination of the vertical vibration damping device and the horizontal vibration damping device can effectively reduce the vibration force of the lift box body 2, reduce the noise generated by the lift box body 2 during operation, and improve transmission efficiency. At the same time, the vibration damping portion installed on the lift box output shaft 202, under the action of its counterweight block 22 and second spring 24, can reduce the vibration force of the output shaft 202 in the lift box body 2, further reducing the noise generated by the lift box body 2 during operation.

[0033] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A lifting box with noise reduction function, characterized by: It comprises a mounting plate (1), a lifting box body arranged on the mounting plate (1), and a noise reduction component for reducing the noise of the lifting box body (2); A motor (4) connected to the input shaft (201) of the lift box body (2) is provided below the lift box body (2), a support plate (3) for mounting the power supply (4) is provided below the lift box body (2), and an electric control box (5) for controlling the opening and closing of the motor (4) is provided on the mounting plate (1); The noise reduction component comprises a vertical vibration absorbing device arranged on the top surface of the lift box body (2) and a horizontal vibration absorbing device arranged on the mounting plate (1) and the support plate (3); The vertical vibration absorbing device includes fixed plates (10) distributed on the top surface of the lift box body (2), and each fixed plate (10) is provided with a first spring (9), and the top end of the first spring (9) is provided with a vibration absorbing body; The horizontal vibration absorbing device comprises a buffer group arranged on a mounting plate (1) and located on both sides of a lift box body (2); the buffer group cooperates with corresponding side walls of the lift box body (2).

2. The lift box with noise reduction function according to claim 1, characterized in that: The vibration absorbing body comprises a weight box (6) arranged on a first spring (9), and a weight block (8) is placed in the weight box (6); A cover plate (11) is rotatably provided on the weight box (6).

3. The lift box with noise reduction function according to claim 2, characterized in that: A partition (7) is provided in the weight box (6).

4. The lift box with noise reduction function according to claim 1, characterized in that: The buffer group includes an energized base (12) provided on the mounting plate (1) and a rubidium magnet (16) provided on the outer wall of the lift box body (2), wherein the energized base (12) and the rubidium magnet (16) are provided correspondingly; An outer cover (13) is provided on the energized base (12), a metal rod (14) is provided inside the outer cover (13), and an electromagnetic coil (15) is provided on the energized base (12), the metal rod (14) is located inside the electromagnetic coil (15); An opening is formed on one side of the outer cover (13) of the buffer group corresponding to the lift box body (2), and a graphene layer is coated on the inner wall of the outer cover (13).

5. The lift box with noise reduction function according to claim 4, characterized in that ； The output shaft (202) of the lift box body (2) is provided with a noise reduction portion, and the noise reduction portion includes an eccentric block (17) rotatably provided on the output shaft (202) of the lift box body (2) through a bearing (18), a placement opening (19) is provided on the eccentric block (17), and a stabilizing groove (21) is provided on a side wall of the placement opening (19); A counterweight (22) is slidably provided in the placement opening (19), and a guide block (23) is provided on the counterweight (22) and is slidably provided with the stabilizing groove (21). A fixed shaft (20) is provided in the placement opening (19), the counterweight (22) and the fixed shaft (20) are slidably provided, and a second spring (24) is sleeved on the fixed shaft (20) between the counterweight (22) and the top surface of the placement opening (19).

6. The lift box with noise reduction function according to claim 1, characterized in that: Buffer groups are provided on both sides of the lifting box body (2) on the support plate (3).

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