Low-temperature hydraulic oil cylinder
By introducing an electric heater and a heat preservation mechanism into the hydraulic cylinder, the problem of insufficient oil flow at low temperatures is solved, enabling the hydraulic cylinder to be used stably under extreme conditions and expanding its application range.
Patent Information
- Application Number
- CN202520446002.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Under extreme low temperature conditions, the fluidity of the hydraulic oil in the hydraulic cylinder is insufficient, resulting in a reduction in the effectiveness of the hydraulic cylinder.
A cryogenic hydraulic cylinder was designed, which includes an electric heater and a heat preservation mechanism. The cylinder enhances the fluidity by heating and circulating the hydraulic fluid to increase the ambient temperature around the cylinder.
In low-temperature environments, heating and circulating the hydraulic fluid improves the performance and application range of the hydraulic cylinder, ensuring stable operation of the cylinder under extreme conditions.
Smart Images
Figure CN223868285U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hydraulic cylinder technical field, concretely is a low temperature hydraulic cylinder. BACKGROUND
[0002] In the hydraulic transmission system, the hydraulic cylinder as the core execution element, is widely used in engineering machinery, metallurgical equipment, shipbuilding, aerospace and many other fields, is the key component of realizing equipment automation, accurate control and efficient operation.
[0003] The working principle of the hydraulic cylinder is based on Pascal's principle, that is, the pressure on the closed liquid can be transmitted in all directions with constant size, when the high-pressure oil enters the rodless cavity or the rod cavity of the cylinder through the oil inlet, the pressure of the oil can be converted into the kinetic energy of the piston, which drives the piston and the load connected thereto to move linearly, in this process, the flowability of the oil directly determines the response speed, motion stability and control accuracy of the cylinder, however, under the condition of extremely low temperature, the flowability of the oil in the hydraulic cylinder is insufficient, which will reduce the use effect of the hydraulic cylinder.
[0004] Therefore, in view of the above problems, the applicant needs to design a low temperature hydraulic cylinder to solve the problem. SUMMARY
[0005] The utility model discloses a low temperature hydraulic cylinder to solve the problems mentioned in the above background.
[0006] To achieve the above object, the utility model provides the following technical scheme: a low temperature hydraulic cylinder, including the oil cylinder shell,
[0007] Still include: set up in the oil cylinder shell on the oil inlet storehouse, oil inlet storehouse inside be provided with electric heater, and electric heater is used for heating the oil in the oil inlet storehouse, be provided with conveying component on the oil inlet storehouse, and conveying component sends the oil to the oil cylinder shell, be provided with the oil outlet storehouse on the oil cylinder shell, and the oil outlet storehouse is communicated with the extension pipeline, the oil inlet end of the extension pipeline is communicated with the oil outlet pipeline, and the oil outlet pipeline is fixedly communicated with the oil cylinder shell;
[0008] The heat preservation mechanism is communicated with the oil inlet storehouse outside the oil cylinder shell, and the heat preservation mechanism is used for improving the ambient temperature around the oil cylinder shell;
[0009] The temperature rising mechanism is communicated with the oil inlet storehouse outside the extension pipeline, and the temperature rising mechanism is used for improving the ambient temperature around the extension pipeline.
[0010] Further, the temperature rising mechanism comprises an inlet pipe communicated with the oil inlet storehouse, and a spiral pipe is integrally communicated with an output end of the inlet pipe, an outlet pipe is fixedly communicated with an end of the spiral pipe away from the inlet pipe, and the outlet pipe is fixedly communicated with the oil inlet storehouse.
[0011] Through the above structural design, in use, the high-temperature oil liquid in the oil inlet warehouse is convenient to enter the flow inlet pipeline, the oil liquid in the flow inlet pipeline is convenient to enter the spiral pipeline, the oil liquid in the spiral pipeline is convenient to enter the flow outlet pipeline, and the oil liquid in the flow outlet pipeline will flow to the oil inlet warehouse, so as to facilitate the circulation of the high-temperature oil liquid, improve the ambient temperature around the extension pipeline, and further improve the temperature of the oil liquid circulating out of the hydraulic oil cylinder inside the extension pipeline, thereby enhancing the flowability of the oil liquid in the extension pipeline.
[0012] Further, the heat preservation mechanism comprises a communication pipeline fixedly communicated with the oil inlet warehouse, and the input end of the communication pipeline is integrally communicated with a heat preservation pipeline, one end of the heat preservation pipeline fixedly communicated with the circulation pipeline is away from the communication pipeline, and the circulation pipeline is fixedly communicated with the oil inlet warehouse.
[0013] Through the above structural design, in use, the high-temperature oil liquid in the oil inlet warehouse is convenient to enter the flow inlet pipeline, the oil liquid in the flow inlet pipeline is convenient to enter the spiral pipeline, the oil liquid in the spiral pipeline is convenient to enter the flow outlet pipeline, and the oil liquid in the flow outlet pipeline will flow to the oil inlet warehouse, so as to facilitate the circulation of the high-temperature oil liquid, improve the ambient temperature around the extension pipeline, and further improve the temperature of the oil liquid circulating out of the hydraulic oil cylinder inside the extension pipeline, thereby enhancing the flowability of the oil liquid in the extension pipeline.
[0014] Further, the conveying component comprises a connecting pipeline fixedly communicated with the oil inlet warehouse, and the connecting pipeline is communicated with an oil inlet pipeline at one end away from the oil inlet warehouse, and the oil inlet pipeline is fixedly communicated with the oil cylinder shell.
[0015] Through the above structural design, the high-temperature oil liquid is conveniently introduced into the hydraulic oil cylinder through the connecting pipeline and the oil inlet pipeline.
[0016] Further, the oil inlet warehouse is fixedly communicated with an oil inlet pipeline, and the oil inlet pipeline is used for guiding the oil liquid from the outside.
[0017] Through the above structural design, the oil liquid in the oil tank outside is conveniently introduced into the oil inlet warehouse through the oil inlet pipeline.
[0018] Further, the oil outlet warehouse is fixedly communicated with an oil outlet pipeline, and the oil outlet pipeline is used for guiding the oil liquid in the oil outlet warehouse.
[0019] Through the above structural design, the oil liquid in the oil outlet warehouse is conveniently guided to the oil tank outside through the oil outlet pipeline, so as to facilitate the circulation of the oil liquid.
[0020] Compared with the prior art, the low-temperature hydraulic oil cylinder of the utility model is convenient to heat the oil liquid by using the electric heater, and the high-temperature oil liquid is conveniently recycled, so that the hydraulic oil cylinder is stably used in a low-temperature environment, and the specific content is as follows:
[0021] 1. The low-temperature hydraulic cylinder, when in use, utilizes the oil inlet pipeline to input oil into the oil inlet warehouse and starts the electric heater, the high-temperature oil in the oil inlet warehouse is convenient to enter the connecting pipeline, the oil in the connecting pipeline is convenient to enter the heat preservation pipeline, the oil in the heat preservation pipeline is convenient to enter the circulating pipeline, the oil in the circulating pipeline will flow to the oil inlet warehouse, which will be convenient to make the high-temperature oil circulate, improve the ambient temperature of the hydraulic cylinder, so that the hydraulic cylinder can be used in a low-temperature environment, and the use range of the hydraulic cylinder is improved.
[0022] 2. The low-temperature hydraulic cylinder, when in use, the high-temperature oil in the oil inlet warehouse is convenient to enter the flow inlet pipeline, the oil in the flow inlet pipeline is convenient to enter the spiral pipeline, the oil in the spiral pipeline is convenient to enter the flow outlet pipeline, the oil in the flow outlet pipeline will flow to the oil inlet warehouse, which will be convenient to make the high-temperature oil circulate, improve the ambient temperature of the extension pipeline, and further improve the temperature of the oil flowing out of the hydraulic cylinder inside the extension pipeline, so as to enhance the flowability of the oil in the extension pipeline, and the oil is convenient to flow to the oil outlet warehouse through the extension pipeline. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;
[0024] Figure 2 It is a whole three-dimensional structure schematic view of the utility model Figure 2 It is a structure schematic view of the utility model;
[0025] Figure 3 It is a three-dimensional structure schematic view of the heat preservation mechanism of the utility model;
[0026] Figure 4 It is a structure schematic view of the inside of the heat preservation pipeline of the utility model;
[0027] Figure 5 It is a three-dimensional structure schematic view of the temperature rising mechanism of the utility model.
[0028] In the drawing: 1, cylinder shell; 2, heat preservation mechanism; 3, temperature rising mechanism; 10, oil inlet pipeline; 11, connecting pipeline; 12, oil inlet warehouse; 13, liquid inlet pipeline; 14, oil outlet pipeline; 15, extension pipeline; 16, oil outlet warehouse; 17, liquid outlet pipeline; 18, electric heater; 20, connecting pipeline; 21, heat preservation pipeline; 22, circulating pipeline; 30, flow inlet pipeline; 31, spiral pipeline; 32, flow outlet pipeline. DETAILED DESCRIPTION
[0029] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0030] As shown in Figures 1-5 The utility model discloses a low temperature hydraulic cylinder, including the cylinder shell 1, still include: set up on the oil inlet storehouse 12 of cylinder shell 1, the inside of oil inlet storehouse 12 is provided with electric heater 18, and electric heater 18 is used for heating the oil liquid in oil inlet storehouse 12, be provided with conveying component on oil inlet storehouse 12, and conveying component sends oil liquid to the inside of cylinder shell 1, be provided with oil outlet storehouse 16 on cylinder shell 1, and oil outlet storehouse 16 is communicated with extension pipeline 15, the oil inlet end of extension pipeline 15 is communicated with oil outlet pipeline 14, and oil outlet pipeline 14 and cylinder shell 1 fixed communication, conveying component contains the connecting pipeline 11 of fixed communication with oil inlet storehouse 12, the one end of connecting pipeline 11 is communicated with oil inlet pipeline 10 away from oil inlet storehouse 12, and oil inlet pipeline 10 and cylinder shell 1 fixed communication, be fixedly communicated with liquid inlet pipeline 13 on oil inlet storehouse 12, and liquid inlet pipeline 13 is used for leading in the oil liquid of outside, be fixedly communicated with liquid outlet pipeline 17 on oil outlet storehouse 16, and liquid outlet pipeline 17 is used for leading out the oil liquid in oil outlet storehouse 16.
[0031] The utility model discloses a low temperature hydraulic cylinder, including the cylinder shell 1, still include: set up on the oil inlet storehouse 12 of cylinder shell 1, the inside of oil inlet storehouse 12 is provided with electric heater 18, and electric heater 18 is used for heating the oil liquid in oil inlet storehouse 12, be provided with conveying component on oil inlet storehouse 12, and conveying component sends oil liquid to the inside of cylinder shell 1, be provided with oil outlet storehouse 16 on cylinder shell 1, and oil outlet storehouse 16 is communicated with extension pipeline 15, the oil inlet end of extension pipeline 15 is communicated with oil outlet pipeline 14, and oil outlet pipeline 14 and cylinder shell 1 fixed communication, conveying component contains the connecting pipeline 11 of fixed communication with oil inlet storehouse 12, the one end of connecting pipeline 11 is communicated with oil inlet pipeline 10 away from oil inlet storehouse 12, and oil inlet pipeline 10 and cylinder shell 1 fixed communication, be fixedly communicated with liquid inlet pipeline 13 on oil inlet storehouse 12, and liquid inlet pipeline 13 is used for leading in the oil liquid of outside, be fixedly communicated with liquid outlet pipeline 17 on oil outlet storehouse 16, and liquid outlet pipeline 17 is used for leading out the oil liquid in oil outlet storehouse 16.
[0032] Through the above structure design, in use, utilize oil inlet pipeline 10 to input oil liquid to oil inlet storehouse 12 and start electric heater 18, the high temperature oil liquid in oil inlet storehouse 12 is convenient to enter into communication pipeline 20, the oil liquid in communication pipeline 20 is convenient to enter into heat preservation pipeline 21, the oil liquid in heat preservation pipeline 21 is convenient to enter into circulation pipeline 22, the oil liquid in circulation pipeline 22 will flow to oil inlet storehouse 12, will be convenient to make high temperature oil liquid circulation, improve the ambient temperature of hydraulic cylinder, thereby convenient hydraulic cylinder uses in low temperature environment, improve the use range of hydraulic cylinder.
[0033] A heating mechanism 3 is installed outside the extension pipe 15 and connected to the oil inlet 12. The heating mechanism 3 is used to increase the ambient temperature around the extension pipe 15. The heating mechanism 3 includes an inlet pipe 30 that is fixedly connected to the oil inlet 12. The output end of the inlet pipe 30 is integrally connected to a spiral pipe 31. The end of the spiral pipe 31 away from the inlet pipe 30 is fixedly connected to an outlet pipe 32. The outlet pipe 32 is fixedly connected to the oil inlet 12.
[0034] Through the above structural design, the high-temperature oil in the oil inlet 12 can easily enter the inlet pipe 30, the oil in the inlet pipe 30 can easily enter the spiral pipe 31, and the oil in the spiral pipe 31 can easily enter the outlet pipe 32. The oil in the outlet pipe 32 will flow back to the oil inlet 12, which will facilitate the circulation of the high-temperature oil, increase the ambient temperature around the extension pipe 15, and thus increase the temperature of the oil circulating out of the hydraulic cylinder in the extension pipe 15, thereby enhancing the fluidity of the oil in the extension pipe 15 and facilitating the flow of the oil to the outlet 16 through the extension pipe 15.
[0035] Working principle: When using this cryogenic hydraulic cylinder, oil is input into the oil inlet chamber 12 via the oil inlet pipe 10, and the electric heater 18 is activated. The high-temperature oil in the oil inlet chamber 12 easily enters the inlet pipe 30, the oil in the inlet pipe 30 easily enters the spiral pipe 31, and the oil in the spiral pipe 31 easily enters the outlet pipe 32. The oil in the outlet pipe 32 flows back to the oil inlet chamber 12, which facilitates the circulation of the high-temperature oil, increases the ambient temperature around the extension pipe 15, and thus increases the efficiency of the oil circulating out of the hydraulic cylinder within the extension pipe 15. The high temperature in the oil inlet chamber 12 enhances the fluidity of the oil in the extension pipe 15, facilitating the flow of oil to the outlet chamber 16. Simultaneously, the high-temperature oil in the inlet chamber 12 facilitates its entry into the connecting pipe 20, the oil in the connecting pipe 20 facilitates its entry into the insulation pipe 21, and the oil in the insulation pipe 21 facilitates its entry into the circulation pipe 22. The oil in the circulation pipe 22 will flow back to the inlet chamber 12, which will facilitate the circulation of the high-temperature oil, increase the ambient temperature around the hydraulic cylinder, and thus facilitate the use of the hydraulic cylinder in low-temperature environments, thereby expanding the application range of the hydraulic cylinder.
[0036] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A cryogenic hydraulic cylinder, comprising a cylinder housing (1). Its features are, Also includes: An oil inlet chamber (12) is provided on the cylinder housing (1). An electric heater (18) is provided inside the oil inlet chamber (12) and the electric heater (18) is used to heat the oil in the oil inlet chamber (12). A conveying component is provided on the oil inlet chamber (12) and the conveying component conveys oil into the cylinder housing (1). An oil outlet chamber (16) is provided on the cylinder housing (1) and an extension pipe (15) is connected to the oil outlet chamber (16). The oil inlet end of the extension pipe (15) is connected to an oil outlet pipe (14) and the oil outlet pipe (14) is fixedly connected to the cylinder housing (1). A heat preservation mechanism (2) is provided on the outside of the cylinder housing (1) and connected to the oil inlet (12), and the heat preservation mechanism (2) is used to increase the ambient temperature around the cylinder housing (1); A heating mechanism (3) is installed outside the extension pipe (15) and connected to the oil inlet (12), and the heating mechanism (3) is used to raise the ambient temperature around the extension pipe (15).
2. A cryogenic hydraulic cylinder according to claim 1, characterized in that: The heating mechanism (3) includes an inlet pipe (30) that is fixedly connected to the oil inlet chamber (12), and the output end of the inlet pipe (30) is integrally connected to a spiral pipe (31). The end of the spiral pipe (31) away from the inlet pipe (30) is fixedly connected to an outlet pipe (32), and the outlet pipe (32) is fixedly connected to the oil inlet chamber (12).
3. A cryogenic hydraulic cylinder according to claim 1, characterized in that: The insulation mechanism (2) includes a connecting pipe (20) that is fixedly connected to the oil inlet (12), and the input end of the connecting pipe (20) is integrally connected to the insulation pipe (21). The end of the insulation pipe (21) away from the connecting pipe (20) is fixedly connected to the circulation pipe (22), and the circulation pipe (22) is fixedly connected to the oil inlet (12).
4. A cryogenic hydraulic cylinder according to claim 1, characterized in that: The conveying component includes a connecting pipe (11) that is fixedly connected to the oil inlet chamber (12). One end of the connecting pipe (11) away from the oil inlet chamber (12) is connected to an oil inlet pipe (10), and the oil inlet pipe (10) is fixedly connected to the cylinder housing (1).
5. A cryogenic hydraulic cylinder according to claim 1, characterized in that: The oil inlet (12) is fixedly connected to a liquid inlet pipe (13), and the liquid inlet pipe (13) is used to introduce external oil.
6. A cryogenic hydraulic cylinder according to claim 1, characterized in that: The oil outlet chamber (16) is fixedly connected to a liquid outlet pipe (17), and the liquid outlet pipe (17) is used to discharge the oil in the oil outlet chamber (16).