Improved hydraulic coupler

Abstract

The utility model discloses an improved hydraulic coupler which comprises two oppositely arranged impellers, a cavity for working media to flow is formed between the impellers, an annular check ring is arranged on the edge of an inner ring of one impeller, and the check ring is arranged in the circumferential direction of the inner ring of a blade in the impeller. Through the arrangement of the check ring, backflow of hydraulic oil is effectively limited, the rising speed of output torque is slowed down, the starting time is prolonged, the device is particularly suitable for equipment needing to be stably started for a long time, the slowed-down starting process is beneficial to reducing vibration and impact of the equipment in the starting stage, the stability of the equipment is improved, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic couplers, in particular to an improved hydraulic coupler. Background Art

[0002] During the startup process, hydraulic oil circulates within the cavity of a traditional hydraulic coupling, transferring energy from the active end to the driven end through centrifugal force, achieving stepless power transmission. However, in certain equipment requiring a long, smooth startup, such as butterfly separators, traditional hydraulic couplings often cause excessive vibration due to overly rapid startup and excessive torque output, impacting equipment performance and lifespan. Utility Model Content

[0003] In order to overcome the above-mentioned technical defects, the utility model provides an improved hydraulic coupling, which effectively limits the backflow of hydraulic oil by designing and installing a retaining ring on the inner ring of the impeller on one side of the coupler, thereby slowing down the rising speed and starting time of the output torque to meet the needs under specific working conditions.

[0004] An improved hydraulic coupling comprises two impellers arranged opposite to each other, with a cavity for the flow of a working medium formed between the impellers. An annular retaining ring is provided on the inner edge of one of the impellers. The retaining ring is arranged along the inner circumference of the blades in the impeller and is used to limit the working medium ejected from the impeller from directly flowing back to the active end impeller when the coupler is operating, thereby adjusting the flow path of the working medium, slowing down the rising speed of the output torque and prolonging the starting time.

[0005] As a preferred solution of the present invention, the retaining ring is fixed to the inner ring of the blade by welding to ensure that it does not fall off during high-speed rotation.

[0006] As a preferred solution of the present invention, the cross-section of the retaining ring is I-shaped, and a gap is left between the bottom of the retaining ring and the impeller.

[0007] As a preferred solution of the present invention, a cover plate is fixedly installed on the top of the retaining ring, and the cover plate is used to fix the inner ring of the blade and prevent the working medium from directly impacting the root of the blade, thereby further strengthening the blade structure.

[0008] As a preferred solution of the present invention, the materials of the impeller and the retaining ring are both wear-resistant and corrosion-resistant alloy steel to increase the service life of the coupler.

[0009] As a preferred solution of the present invention, the working medium is oil or water.

[0010] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0011] The utility model effectively limits the backflow of hydraulic oil through the setting of the retaining ring, slows down the rising speed of the output torque, and prolongs the starting time. It is particularly suitable for equipment that requires a long and smooth starting process. The slowed starting process helps to reduce the vibration and impact of the equipment during the starting stage, and improves the stability and service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the impeller and retaining ring structure of the utility model;

[0013] Figure 2 This is a cross-sectional view of the impeller and retaining ring structure of the utility model.

[0014] In the figure: 1. Impeller; 2. Blades; 3. Retaining ring; 4. Cover plate. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0016] Example 1

[0017] like Figure 1 、 Figure 2 As shown, a specific embodiment of the improved hydraulic coupling described in the utility model includes two impellers 1 arranged opposite to each other, and a cavity for the flow of working medium is formed between the impellers 1. An annular retaining ring 3 is provided on the inner edge of one of the impellers 1. The retaining ring 3 is arranged along the inner circumference of the blades 2 in the impeller 1, and is used to limit the working medium thrown out of the impeller 1 from directly flowing back to the active end impeller 1 when the coupler is working, thereby adjusting the flow path of the working medium, slowing down the rising speed of the output torque and prolonging the starting time.

[0018] The retaining ring 3 is fixed to the inner ring of the blade 2 by welding to ensure that it does not fall off during high-speed rotation; the cross-section of the retaining ring 3 is I-shaped, and a gap is left between the bottom of the retaining ring 3 and the impeller 1; a cover plate 4 is fixedly installed on the top of the retaining ring 3, and the cover plate 4 is used to fix the inner ring of the blade 2 and prevent the working medium from directly impacting the root of the blade 2, thereby further strengthening the structure of the blade 2.

[0019] The materials of the impeller 1 and the retaining ring 3 are both wear-resistant and corrosion-resistant alloy steel to increase the service life of the coupler, such as high-strength wear-resistant alloy steel, chromium-molybdenum alloy steel, etc.

[0020] The working medium can be selected as oil or water to meet different transmission efficiency and cooling requirements. The height and width of the retaining ring 3 can be adjusted according to the starting time and torque requirements of the specific equipment to achieve the best working effect.

[0021] The working principle of the utility model is as follows: power is transmitted through the working medium (oil or water) between two relatively rotating impellers 1. The medium circulates between the impellers 1 to generate a hydraulic coupling effect, thereby realizing the transmission of power from the active end to the driven end. The annular retaining ring 3 is added to adjust the medium flow path and effectively limit the backflow of the medium, thereby slowing down the rising speed of the output torque and the starting time, helping to reduce the vibration and impact of the equipment during the startup phase, and improving the stability and service life of the equipment.

[0022] The components in this article are all universal standard parts or components known to those skilled in the art. Their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods, so they will not be described in detail here.

[0023] Although the specific embodiments of the present invention are described in detail above, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by ordinary technicians in this field, various changes can be made without departing from the purpose of the present invention. Modifications or deformations that do not involve creative work are still within the scope of protection of the present invention.

Claims

1. An improved fluid coupling, characterized in that: The invention comprises two impellers (1) arranged opposite to each other, wherein a cavity for the flow of a working medium is formed between the impellers (1), and an annular retaining ring (3) is provided on the inner edge of one of the impellers (1). The retaining ring (3) is arranged along the inner circumference of the blades (2) in the impeller (1) and is used to limit the working medium thrown out of the impeller (1) from directly flowing back to the active end impeller (1) when the coupler is working, thereby adjusting the flow path of the working medium, slowing down the rising speed of the output torque and prolonging the starting time.

2. The improved fluid coupling according to claim 1, characterized in that: The retaining ring (3) is fixed to the inner ring of the blade (2) by welding, ensuring that it does not fall off during high-speed rotation.

3. The improved fluid coupling according to claim 1, characterized in that: The cross section of the retaining ring (3) is I-shaped, and a gap is left between the bottom of the retaining ring (3) and the impeller (1).

4. The improved fluid coupling according to claim 1, characterized in that: A cover plate (4) is fixedly mounted on the top of the retaining ring (3), and the cover plate (4) is used to fix the inner ring of the blade (2) and prevent the working medium from directly impacting the root of the blade (2), thereby further strengthening the structure of the blade (2).

5. The improved fluid coupling according to claim 1, characterized in that: The materials of the impeller (1) and the retaining ring (3) are both wear-resistant and corrosion-resistant alloy steel to increase the service life of the coupler.

6. The improved fluid coupling according to claim 1, characterized in that: The working medium is oil or water.

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