A dual-power drive mechanism

Abstract

The present invention discloses a dual-power drive mechanism, comprising a cylindrical cylinder body, a lower cylinder head mounted at the bottom of the cylinder body, a partition plate at the middle of the cylinder body dividing the space within the cylinder body into an upper and lower chamber, an upper piston within the upper chamber, a high-pressure fluid input port I within the cylinder body between the partition plate and the upper piston, a lower piston within the lower chamber, a high-pressure fluid input port II within the cylinder body between the lower cylinder head and the lower piston, and a push rod, the push rod body being located within the cylinder body, a convex ring being provided at the middle of the push rod, the lower end of the push rod simultaneously passing through the center hole of the upper piston and the center hole of the partition plate before entering the lower chamber, the convex ring on the push rod contacting the upper surface of the upper piston. The present invention achieves linear motion of the push rod by providing two sets of driving power. When the power of the upper piston fails, the lower piston can push the push rod to perform linear motion. The two sets of power are independent of each other, greatly improving the reliability and stability of the system.

Description

Technical Field

[0001] The present invention belongs to high-speed railway contact network construction equipment, and in particular relates to a dual-power drive mechanism. Background Art

[0002] Currently, this type of drive mechanism completes the corresponding action through a single source of driving power. If a problem occurs in the power mechanism and power is lost, the drive mechanism will be unable to complete the predetermined action. It is urgent to solve the risks existing in current engineering applications through structural optimization and enhance the reliability and stability of the system. Summary of the Invention

[0003] In view of the deficiencies in the prior art, an object of the present invention is to provide a dual-power drive mechanism.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A dual-power drive mechanism includes a cylindrical cylinder body, a lower cylinder cover is installed at the bottom of the cylinder body, a partition is provided in the middle position of the cylinder body to divide the space in the cylinder body into two upper and lower chambers, an upper piston is arranged in the upper chamber, a high-pressure fluid input port I is provided on the cylinder body between the partition and the upper piston, a lower piston is arranged in the lower chamber, a high-pressure fluid input port II is provided on the cylinder body between the lower cylinder cover and the lower piston, and a push rod is also included. The push rod body is located in the cylinder body, a convex ring is provided in the middle of the push rod, the lower end of the push rod passes through the center hole on the upper piston and the center hole on the partition at the same time and then enters the lower chamber, and the convex ring on the push rod contacts the upper surface of the upper piston.

[0006] The high-pressure fluid input port I is connected to a high-pressure fluid pump through a pipeline, and the high-pressure fluid input port II is also connected to a high-pressure fluid pump through a pipeline.

[0007] An upper cylinder cover is installed on the top of the cylinder body, and the upper end of the push rod passes through the center hole on the upper cylinder cover.

[0008] In the pressure relief state, the upper surface of the lower piston does not contact the lower end surface of the push rod.

[0009] The present invention completes the linear motion of the push rod by setting up two sets of driving power. One driving force is the external high-pressure gas or liquid injected into the closed space below the upper piston, which drives the push rod to move linearly through the upper piston; the other driving force is the external high-pressure gas or liquid injected into the closed space below the lower piston. When the power of the upper piston fails, the lower piston can push the push rod to move linearly. The two sets of power are independent of each other, which greatly increases the reliability and stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] FIG1 is a schematic structural diagram of the present invention.

[0011] In the figure: 1. upper cylinder cover, 2. push rod, 3. upper piston, 4. cylinder body, 5. lower piston, 6. lower cylinder cover, 7. high-pressure fluid input port I, 8. high-pressure fluid input port II. DETAILED DESCRIPTION

[0012] like Figure 1 The dual-power drive mechanism shown includes a cylindrical cylinder body 4, with an upper cylinder head 1 mounted on top and a lower cylinder head 6 mounted on the bottom. A partition is located in the middle of the cylinder body, dividing the space within the cylinder body into upper and lower chambers. The upper chamber houses an upper piston 3. A high-pressure fluid inlet port I 7 is located in the cylinder body between the partition and the upper piston. The lower chamber houses a lower piston 5. A high-pressure fluid inlet port II 8 is located in the cylinder body between the lower cylinder head 6 and the lower piston 5. High-pressure fluid inlet port I is connected to a high-pressure fluid pump via a pipeline, and high-pressure fluid inlet port II is also connected to a high-pressure fluid pump via a pipeline. The mechanism also includes a push rod 2, the main body of which is located within the cylinder body. A raised ring is located in the middle of the push rod. The upper end of the push rod passes through the center hole of the upper cylinder head, while the lower end of the push rod passes through the center hole of the upper piston and the center hole of the partition before entering the lower chamber. The raised ring on the push rod contacts the upper surface of the upper piston. In the depressurized state, the upper surface of the lower piston 5 does not contact the lower end surface of the push rod 4.

[0013] The present invention completes the linear motion of the push rod by setting up two sets of driving power. The first driving force is external high-pressure gas or liquid injected into the closed space below the upper piston, and the upper piston drives the push rod to move linearly; the second driving force is external high-pressure gas or liquid injected into the closed space below the lower piston. When the power of the upper piston fails, the lower piston can also push the push rod to move linearly. The two sets of power are independent of each other, which greatly increases the reliability and stability of the system.

[0014] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the present profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A dual-power drive mechanism comprising a cylindrical cylinder with a lower cylinder cover mounted on the bottom of the cylinder, characterized in that: There is a partition in the middle of the cylinder body, which divides the space in the cylinder body into two chambers, an upper chamber with an upper piston, and a high-pressure fluid input port I on the cylinder body between the partition and the upper piston. There is a lower piston in the lower chamber, and a high-pressure fluid input port II on the cylinder body between the lower cylinder cover and the lower piston. It also includes a push rod, the push rod body is located in the cylinder body, and a convex ring is provided in the middle of the push rod. The lower end of the push rod passes through the center hole on the upper piston and the center hole on the partition at the same time and then enters the lower chamber, and the convex ring on the push rod contacts the upper surface of the upper piston.

2. The dual-power drive mechanism according to claim 1, characterized in that: The high-pressure fluid input port I is connected to a high-pressure fluid pump through a pipeline, and the high-pressure fluid input port II is also connected to a high-pressure fluid pump through a pipeline.

3. The dual-power drive mechanism according to claim 1, characterized in that: An upper cylinder cover is installed on the top of the cylinder body, and the upper end of the push rod passes through the center hole on the upper cylinder cover.

4. The dual-power drive mechanism according to claim 1, wherein: In the pressure relief state, the upper surface of the lower piston does not contact the lower end surface of the push rod.

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