Supercharging device of ultrahigh-pressure oil cylinder

By designing a hydraulic booster device and a booster flattening screw mechanism, the problem of deformation of the push rod thread hole of the hydraulic cylinder under high pressure is solved, thereby improving the stability and safety of the hydraulic push rod and ensuring the stable operation and efficient work of the equipment in a high-pressure environment.

CN223621878UActive Publication Date: 2025-12-02CHONGQING DONGCHUANG MASCH CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202423318369.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-12-02
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing hydraulic cylinders are prone to deformation of the push rod thread hole under high pressure, affecting meshing and equipment safety, and traditional designs are difficult to maintain stable operation under high pressure.

Method used

It adopts a hydraulic booster device, a booster flattening screw mechanism, a multi-channel rotary connection and solenoid valve design. Through precise control of flattening oil and sensor monitoring, the stability and safety of the push rod are enhanced, and the oil circuit design is optimized to improve efficiency.

Benefits of technology

It significantly improves the working efficiency and safety of hydraulic push rods, prevents dents, ensures stable operation of equipment under high pressure, enhances oil transmission efficiency and system collaborative working ability, and has a clear structure that facilitates maintenance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223621878U_ABST
    Figure CN223621878U_ABST
Patent Text Reader

Abstract

The utility model provides an ultrahigh pressure oil cylinder supercharging device which comprises a hydraulic boosting device, a boosting flat pressing screw rod mechanism is installed on the hydraulic boosting device, the boosting flat pressing screw rod mechanism is rotationally connected with a multi-channel rotary connector and communicated with the multi-channel rotary connector, and two flat pressing oil pipes are installed on the multi-channel rotary connector. A flat pressing screw of the boosting flat pressing screw mechanism is connected with a threaded hole of a flat pressing push rod in a meshed mode, the flat pressing screw is rotationally installed in a hydraulic cylinder body, and a hydraulic push rod body of the flat pressing push rod penetrates out of the hydraulic cylinder body in a sealed and sliding mode. The working efficiency and the safety of the hydraulic push rod are remarkably improved. And through flexible'flat pressing oil 'pressure intensity adjustment, the hydraulic push rod is effectively prevented from sinking, and the output force is enhanced. The hydraulic sensor monitors oil pressure in real time to ensure safe operation of equipment. And through the optimized oil way design, multi-channel rotary connection and accurate control of the electromagnetic valve, the oil liquid transmission efficiency is improved, and the oil cylinder is kept stable and efficient in the high-pressure environment.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic cylinder boosting technology, and in particular relates to an ultra-high pressure hydraulic cylinder boosting device. Background Technology

[0002] To address the common pressure leakage problem in existing hydraulic cylinders during long-term operation, a pressure-boosting and stabilizing cylinder has been developed, such as the worm gear and screw pressure-boosting and stabilizing cylinder described in Chinese Utility Model Patent No. CN 214036342 U. This cylinder drives a gear to rotate via an auxiliary oil port, which in turn drives the worm gear and screw, thereby achieving the lifting and lowering movement of the piston and hydraulic push rod.

[0003] However, despite the advantages this design offers in many aspects, it still has a significant drawback. When the oil pressure inside the hydraulic cylinder rises sharply, the hydraulic oil exerts enormous pressure on the cylinder, piston, and piston rod. Because the piston rod has a threaded hole at its center that meshes tightly with the screw, this high-pressure environment can easily cause the piston rod to deform inward or cave in the threaded hole area. Such deformation not only alters the dimensional accuracy of the threaded hole but can also severely hinder the normal meshing between the threaded hole and the screw, thus posing a serious threat to the overall performance and safety of the hydraulic cylinder.

[0004] Therefore, it is essential to invent an ultra-high pressure hydraulic cylinder booster device. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an ultra-high pressure cylinder boosting device, including a hydraulic booster device, a booster flattening screw mechanism, a multi-channel rotary connector, flattening oil pipes, flattening push rods, and a hydraulic cylinder body. The booster flattening screw mechanism is installed on the hydraulic booster device. The booster flattening screw mechanism is rotatably connected to and communicates with the multi-channel rotary connector. Two flattening oil pipes are installed on the multi-channel rotary connector. The flattening screw of the booster flattening screw mechanism is engaged with the threaded hole of the flattening push rod. The flattening screw is rotatably installed inside the hydraulic cylinder body, and the hydraulic push rod of the flattening push rod slides through the hydraulic cylinder body in a sealed manner.

[0006] Preferably, both the hydraulic booster and the hydraulic cylinder are provided with a set of oil ports, which are divided into an oil inlet and an oil outlet.

[0007] Preferably, the boosting and flattening screw mechanism includes a flattening screw, a worm gear, and a connecting fixed seat. The worm gear fixedly installed below the flattening screw meshes with the worm gear provided in the hydraulic boosting device. The worm gear is located inside the hydraulic boosting device. The lower end of the flattening screw is rotatably connected to the connecting fixed seat, which is fixedly installed below the hydraulic boosting device.

[0008] Preferably, the flat pressure screw and the connecting fixing seat have interconnected flat pressure oil channels inside, and the flat pressure oil channel of the connecting fixing seat is connected to the multi-channel rotary connecting connector.

[0009] Preferably, the flat pressure oil channel of the flat pressure screw is connected to the threaded hole, which is located at the center of the hydraulic push rod. A hydraulic sensor is fixedly installed on the top of the groove of the threaded hole of the hydraulic push rod, and the hydraulic sensor is used to detect the flat pressure oil pressure in the threaded hole.

[0010] Preferably, the piston fixedly installed at the lower end of the hydraulic push rod is in a sealed sliding connection with the inside of the hydraulic cylinder.

[0011] Preferably, solenoid valves are installed on the oil outlet and oil inlet of the multi-channel rotary connection. The two solenoid valves are respectively connected to the two flat pressure oil pipes, and the solenoid valves are used to control the entry and exit of flat pressure oil.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] Compared to traditional technologies, this invention significantly improves the working efficiency and safety of hydraulic push rods. Through a flexible "flat-pressure oil" pressure regulation mechanism, it effectively counteracts external hydraulic oil pressure, preventing the hydraulic push rod from denting. The "flat-pressure oil" thrust enhances output force, while hydraulic sensors monitor oil pressure in real time, ensuring safe operation of the equipment. Furthermore, optimized oil circuit design and pressure management, utilizing multi-channel rotary connections and precise control of solenoid valves, improve oil transmission efficiency and enhance the collaborative working ability of cylinder components, enabling the cylinder to maintain stable and efficient operation under high-pressure environments. Simultaneously, the design structure is clear, with tightly connected components that are easy to disassemble, facilitating equipment maintenance and upgrades and ensuring long-term stable operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a partial cross-sectional structural diagram of the booster flat pressure screw mechanism and flat pressure push rod of this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the booster flattening screw mechanism of this utility model.

[0017] Figure 4 This is a utility model Figure 2 A magnified structural diagram of point A.

[0018] In the picture:

[0019] Hydraulic booster device 1, booster flat pressure screw mechanism 2, flat pressure screw 21, worm gear 22, connecting fixed seat 23, flat pressure oil channel 24, multi-channel rotary connection 3, flat pressure oil pipe 4, flat pressure push rod 5, hydraulic push rod 51, threaded hole 52, hydraulic sensor 53, piston 54, hydraulic cylinder body 6, oil port 7. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0021] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for 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 the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0022] As attached Figure 1 To be continued Figure 4 As shown:

[0023] The ultra-high pressure hydraulic cylinder booster device provided by this utility model includes a hydraulic booster device 1, a booster flat pressure screw mechanism 2, a multi-channel rotary connection 3, a flat pressure oil pipe 4, a flat pressure push rod 5, and a hydraulic cylinder body 6. The booster flat pressure screw mechanism 2 is installed on the hydraulic booster device 1. The booster flat pressure screw mechanism 2 is rotatably connected to and communicates with the multi-channel rotary connection 3. Two flat pressure oil pipes 4 are installed on the multi-channel rotary connection 3. The flat pressure screw 21 of the booster flat pressure screw mechanism 2 is engaged with the threaded hole 52 of the flat pressure push rod 5. The flat pressure screw 21 is rotatably installed inside the hydraulic cylinder body 6. The hydraulic push rod 51 of the flat pressure push rod 5 slides through the hydraulic cylinder body 6 in a sealed manner.

[0024] Furthermore, both the hydraulic booster 1 and the hydraulic cylinder 6 are carefully equipped with a set of oil ports 7, which are further divided into an inlet and an outlet. This design makes the entry and exit of hydraulic oil more convenient, providing an efficient channel for pressurizing and depressurizing the cylinder. By precisely controlling the flow of the oil, the operation of the cylinder can be precisely adjusted, improving the response speed and stability of the entire system.

[0025] Furthermore, the booster screw mechanism 2 includes a flattening screw 21, a worm gear 22, and a connecting fixed seat 23. The worm gear 22 below the flattening screw 21 is tightly meshed with the worm of the hydraulic booster device 1. This design allows the worm gear 22 and the flattening screw 21 to rotate together when the worm rotates. The lower end of the flattening screw 21 is rotatably connected to the connecting fixed seat 23, ensuring the stability and reliability of the rotation. The connecting fixed seat 23 is fixedly installed below the hydraulic booster device 1, providing stable support for the entire mechanism.

[0026] Furthermore, both the flat-pressure screw 21 and the connecting fixed seat 23 have interconnected flat-pressure oil channels 24, which are closely connected to the multi-channel rotary connector 3, providing a sufficient oil supply for pressurizing the hydraulic push rod 51. At the same time, it also enhances the output force of the hydraulic push rod 51.

[0027] Furthermore, a threaded hole 52 is formed in the center of the hydraulic push rod 51, which is connected to the flat pressure oil channel 24 of the flat pressure screw 21. This design allows the flat pressure oil to be directly injected into the threaded hole 52, providing additional thrust to the hydraulic push rod 51. Simultaneously, a hydraulic sensor 53 is fixedly installed on the top of the groove in the threaded hole 52 to monitor the flat pressure oil pressure within the threaded hole 52 in real time. This function not only improves system safety but also provides crucial data support for equipment maintenance and upkeep.

[0028] A piston 54 is fixedly mounted on the lower end of the hydraulic push rod 51, and the piston 54 is slidably connected to the inside of the hydraulic cylinder 6. This design ensures stable movement of the piston 54 within the cylinder while preventing hydraulic oil leakage, thus improving the sealing and durability of the entire system.

[0029] Furthermore, solenoid valves are installed on both the oil outlet and inlet of the multi-channel rotary connector 3, and these two solenoid valves are respectively connected to two equal-pressure oil pipes 4. The precise control of the solenoid valves makes the entry and exit of equal-pressure oil more flexible and controllable, providing a precise means of adjusting the pressure increase and decrease of the oil cylinder. At the same time, it also improves the automation and intelligence level of the entire system.

[0030] The working principle is as follows: First, when the ultra-high pressure cylinder booster device of this utility model starts working, the hydraulic booster device 1 is activated, and the worm inside it begins to rotate. Since the worm is tightly meshed with the worm wheel 22 in the booster flat pressure screw mechanism 2, the rotation of the worm will drive the worm wheel 22 and the flat pressure screw 21 connected to it to rotate together.

[0031] Next, as the flat-pressure screw 21 rotates, it engages with the threaded hole 52 in the hydraulic push rod 5. This precise engagement design allows the rotation of the flat-pressure screw 21 to be converted into linear motion of the hydraulic push rod 51 within the hydraulic cylinder 6. Simultaneously, since both the flat-pressure screw 21 and the connecting fixing seat 23 have interconnected flat-pressure oil channels 24, and these channels are tightly connected to the multi-channel rotary connection 3, high-pressure flat-pressure oil can be injected into the threaded hole 52 through these channels.

[0032] At this time, the flat pressure oil in the threaded hole 52 not only provides additional thrust to the hydraulic push rod 51, but also effectively counteracts external hydraulic oil pressure, preventing the hydraulic push rod 51 from denting, and its pressure is monitored in real time by the hydraulic sensor 53. This function ensures the safety of the system in high-pressure working environments, and also provides key data support for equipment maintenance and upkeep.

[0033] The solenoid valves installed on the oil outlet and inlet of the multi-channel rotary connector 3 precisely control the flow of pressure oil. By opening and closing the solenoid valves, the flow rate and pressure of the pressure oil can be flexibly adjusted, thus providing a precise means of regulating the pressurization and depressurization of the cylinder. This design not only improves the automation and intelligence level of the system, but also makes the entire device more stable and reliable under high-pressure operating conditions.

[0034] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. An ultra-high pressure hydraulic cylinder booster device, characterized in that, The device includes a hydraulic booster (1), a booster flat pressure screw mechanism (2), a multi-channel rotary connector (3), flat pressure oil pipes (4), flat pressure push rods (5), and a hydraulic cylinder (6). The hydraulic booster (1) is equipped with the booster flat pressure screw mechanism (2), which is rotatably connected to and communicates with the multi-channel rotary connector (3). Two flat pressure oil pipes (4) are installed on the multi-channel rotary connector (3). The flat pressure screw (21) of the booster flat pressure screw mechanism (2) is meshed with the threaded hole (52) of the flat pressure push rod (5). The flat pressure screw (21) is rotatably installed inside the hydraulic cylinder (6), and the hydraulic push rod (51) of the flat pressure push rod (5) slides through the hydraulic cylinder (6) in a sealed manner.

2. The ultra-high pressure hydraulic cylinder booster device as described in claim 1, characterized in that: Both the hydraulic booster device (1) and the hydraulic cylinder (6) are provided with a set of oil ports (7), which are divided into an oil inlet and an oil outlet.

3. The ultra-high pressure hydraulic cylinder booster device as described in claim 2, characterized in that: The boosting and flattening screw mechanism (2) includes a flattening screw (21), a worm gear (22), and a connecting fixed seat (23). The worm gear (22) fixedly installed below the flattening screw (21) is meshed with the worm gear provided in the hydraulic boosting device (1). The worm gear (22) is located inside the hydraulic boosting device (1). The lower end of the flattening screw (21) is rotatably connected to the connecting fixed seat (23). The connecting fixed seat (23) is fixedly installed below the hydraulic boosting device (1).

4. The ultra-high pressure hydraulic cylinder booster device as described in claim 3, characterized in that: The flat pressure screw (21) and the connecting fixed seat (23) are provided with interconnected flat pressure oil channels (24), and the flat pressure oil channels (24) of the connecting fixed seat (23) are connected to the multi-channel rotary connection (3).

5. The ultra-high pressure hydraulic cylinder booster device as described in claim 4, characterized in that: The flat pressure oil channel (24) of the flat pressure screw (21) is connected to the threaded hole (52). The threaded hole (52) is located in the center of the hydraulic push rod (51). A hydraulic sensor (53) is fixedly installed on the top of the groove of the threaded hole (52) of the hydraulic push rod (51). The hydraulic sensor (53) is used to detect the flat pressure oil pressure in the threaded hole (52).

6. The ultra-high pressure hydraulic cylinder booster device as described in claim 5, characterized in that: The piston (54) fixedly installed at the lower end of the hydraulic push rod (51) is in a sealed sliding connection with the inside of the hydraulic cylinder (6).

7. The ultra-high pressure hydraulic cylinder booster device as described in claim 4, characterized in that: Solenoid valves are installed on the oil outlet and oil inlet of the multi-channel rotary connector (3). The two solenoid valves are respectively connected to the two flat pressure oil pipes (4). The solenoid valves are used to control the entry and exit of flat pressure oil.

Citation Information

Patent Citations

  • Worm gear screw pressurizing stable oil cylinder

    CN214036342U