A new type of hydraulic booster electric cylinder

By using a hydraulic drive mechanism and precise control of hydraulic systems in the hydraulic assisted electric cylinder, the problem of assist becoming resistance when the existing assisted electric cylinder returns is solved, and efficient output and stable rotation under high load conditions are achieved.

CN222735943UActive Publication Date: 2025-04-08SHENZHEN MAITZ IND CO LTD
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Patent Information

Application Number
CN202421299848.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-06
Publication Date
2025-04-08
Estimated Expiration
2034-06-06

AI Technical Summary

Technical Problem

The existing assist electric cylinders become resistance when returning, resulting in unsuitable under conditions where there is a load on the reciprocating.

Method used

A new type of hydraulic power-assisted electric cylinder is designed, and a hydraulic drive mechanism is adopted, including a hydraulic station, a speed reduction motor and a drive motor. Through the precise control of the hydraulic system, the bearing capacity of the entire cylinder is enhanced.

Benefits of technology

Under the output of conventional motor power, the load-resistant output capability is significantly improved through precise control of the hydraulic system, and it is adapted to the use needs of various complex operating conditions.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a novel hydraulic booster electric cylinder, comprising a mounting base, a fixedly connected support plate is provided on the surface of the mounting base, a fixedly connected mounting frame is provided on the support plate, a cylinder body is provided on the surface of the mounting frame, a piston rod is provided on the surface of the cylinder body, a fixedly connected push plate is provided on the top of the piston rod, a hydraulic drive mechanism is provided below the cylinder body, the hydraulic drive mechanism comprises a hydraulic station, a reduction motor and a drive motor, the hydraulic station is located below the cylinder body, the reduction motor and the drive motor, the bottom of the cylinder body and the reduction motor are all connected through a coupling; a hydraulic push rod is provided on the surface of the hydraulic station, and the hydraulic push rod faces the push plate.
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Description

Technical Field

[0001] The utility model belongs to the technical field of electric cylinders, and more specifically, particularly relates to a novel hydraulic booster electric cylinder. Background Art

[0002] The output capacity of ordinary electric cylinders is usually limited by the power of the motor. If used under high load conditions, a high-power drive motor must be selected to ensure that the output force and moving speed of the load meet the requirements, but this will result in a larger structural size of the electric cylinder. Therefore, in some specific working conditions, a power-assisted electric cylinder is required.

[0003] In the prior art, for example, Chinese patent CN112242777B discloses an internal air pressure differential power-assisted electric cylinder. Although the power-assisted electric cylinder can provide power assistance when extending outward, the power assistance will become resistance when returning, thus requiring additional power consumption. The cylinder is not suitable for working conditions with both reciprocating and forward loads. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a novel hydraulic booster electric cylinder to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a new type of hydraulic power-assisted electric cylinder, including a mounting base, a fixedly connected support plate is provided on the surface of the mounting base, a fixedly connected mounting frame is provided on the surface of the mounting frame, a cylinder body is provided on the surface of the cylinder body, a piston rod is provided on the surface of the cylinder body, a fixedly connected push plate is provided on the top of the piston rod, a hydraulic drive mechanism is provided under the cylinder body, the hydraulic drive mechanism includes a hydraulic station, a reduction motor and a drive motor, the hydraulic station is located under the cylinder body, the reduction motor and the drive motor, the bottom of the cylinder body and the reduction motor are connected through a coupling; a hydraulic push rod is provided on the surface of the hydraulic station, and the hydraulic push rod faces the push plate.

[0006] Preferably, the bottom of the cylinder body is connected to the output shaft of the reduction motor via a bevel gear set.

[0007] Preferably, an oil inlet and an oil outlet are provided on the surface of the hydraulic station, and a hydraulic oil pump is connected to the oil inlet, and the other end of the hydraulic oil pump is connected to an oil storage tank.

[0008] Preferably, a bearing plate fixedly connected to the top of the hydraulic push rod is provided, and a reinforcing block fixedly connected to the hydraulic push rod is provided at the bottom of the bearing plate.

[0009] Preferably, a switch group connected to the cylinder body, the hydraulic station and the drive motor control is provided on the mounting base.

[0010] The utility model provides a novel hydraulic power-assisted electric cylinder, which has the following beneficial effects: the electric cylinder can withstand working requirements under high load conditions, and the high-speed and stable reciprocating rotation of the ball screw in the electric cylinder is achieved through the cooperation of the drive motor, the reduction motor and the bevel gear set. Then, under the output of conventional power of the motor, the precise control of the hydraulic system is ensured to further enhance the bearing capacity of the entire cylinder body, so that the load-bearing output capacity is greatly improved, which is convenient for industrial use needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] Figure 2 It is a front structural schematic diagram of the utility model.

[0013] In the figure, 1. mounting base; 2. support plate; 3. mounting frame; 4. cylinder body; 5. push plate; 6. hydraulic drive mechanism; 61. hydraulic station; 62. reduction motor; 63. drive motor; 7. coupling; 8. hydraulic push rod; 9. bearing plate; 10. reinforcement block; 11. hydraulic oil pump; 12. oil storage tank; 13. switch group. DETAILED DESCRIPTION

[0014] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0015] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] See also Figure 1 to Figure 2 The utility model provides a technical solution: a new type of hydraulic booster electric cylinder, including a mounting base 1, a fixedly connected support plate 2 is provided on the surface of the mounting base 1, a fixedly connected mounting frame 3 is provided on the support plate 2, a cylinder body 4 is provided on the surface of the mounting frame 3, a piston rod is provided on the surface of the cylinder body 4, a fixedly connected push plate 5 is provided on the top of the piston rod, and a hydraulic drive mechanism 6 is provided below the cylinder body 4, the hydraulic drive mechanism 6 includes a hydraulic station 61, a reduction motor 62 and a drive motor 63, the hydraulic station 61 is located below the cylinder body 4, the reduction motor 62 and the drive motor 63, the bottom of the cylinder body 4 and the reduction motor 62 are connected through a coupling 7, and the bottom of the cylinder body 4 is connected to the output shaft of the reduction motor 62 through a bevel gear set. A hydraulic push rod 8 is provided on the surface of the hydraulic station 61, the hydraulic push rod 8 faces the push plate 5, a fixedly connected bearing plate 9 is provided on the top of the hydraulic push rod 8, and a reinforcing block 10 fixedly connected to the hydraulic push rod 8 is provided at the bottom of the bearing plate 9. An oil inlet and an oil outlet are provided on the surface of the hydraulic station 61 . The oil inlet is connected to a hydraulic oil pump 11 , and the other end of the hydraulic oil pump 11 is connected to an oil storage tank 12 .

[0018] A switch group 13 which is controllably connected to the cylinder body 4 , the hydraulic station 61 and the drive motor 63 is disposed on the mounting base 1 .

[0019] The specific usage and function of this embodiment are as follows: first, the driving motor 63 and the reduction motor 62 are energized to drive the output shaft and the coupling 7 to rotate, and then the rotating shaft in the cylinder body 4 is driven to rotate through the bevel gear set. The use of an external motor drive can ensure that the rotating shaft in the cylinder body 4 can rotate in a controllable and stable manner, and can increase the output power of the entire cylinder body 4; then, when the output shaft in the cylinder body 4 drives the push plate 5 to reach a specified height, in order to ensure the load-bearing stability of the cylinder body 4, the hydraulic system is precisely controlled: the hydraulic push rods 8 on both sides are started to move upward through the hydraulic station 61, so that the top load-bearing plate 9 can firmly support the push plate 5, thereby enhancing the load-bearing capacity of the cylinder body 4, making it safer and more stable, and greatly improving the load-bearing output capacity, which can adapt to the use requirements under various complex working conditions.

[0020] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel hydraulic booster electric cylinder, comprising a mounting base (1), characterized in that: A fixedly connected support plate (2) is provided on the surface of the mounting base (1), and a fixedly connected mounting frame (3) is provided on the support plate (2). A cylinder body (4) is provided on the surface of the cylinder body (4), and a piston rod is provided on the surface of the cylinder body (4). A fixedly connected push plate (5) is provided on the top of the piston rod. A hydraulic drive mechanism (6) is provided below the cylinder body (4), and the hydraulic drive mechanism (6) comprises a hydraulic station (61), a reduction motor (62) and a drive motor (63). The hydraulic station (61) is located below the cylinder body (4), and the reduction motor (62) and the drive motor (63), as well as the bottom of the cylinder body (4) and the reduction motor (62) are all connected through a coupling (7). A hydraulic push rod (8) is provided on the surface of the hydraulic station (61), and the hydraulic push rod (8) faces the push plate (5).

2. According to claim 1, the novel hydraulic booster electric cylinder is characterized in that: The bottom of the cylinder body (4) is connected to the output shaft of the reduction motor (62) via a bevel gear set.

3. According to claim 1, the novel hydraulic booster electric cylinder is characterized in that: An oil inlet and an oil outlet are provided on the surface of the hydraulic station (61); the oil inlet is connected to a hydraulic oil pump (11); the other end of the hydraulic oil pump (11) is connected to an oil storage tank (12).

4. The novel hydraulic booster electric cylinder according to claim 1 is characterized in that: A bearing plate (9) is fixedly connected to the top of the hydraulic push rod (8), and a reinforcing block (10) is fixedly connected to the hydraulic push rod (8) at the bottom of the bearing plate (9).

5. The novel hydraulic booster electric cylinder according to claim 1 is characterized in that: The mounting base (1) is provided with a switch group (13) which is controllably connected to the cylinder body (4), the hydraulic station (61) and the drive motor (63).

Citation Information

Patent Citations

  • An internal pneumatic differential power-assisted electric cylinder

    CN112242777B