Rotation paddle type water turbine paddle operation mechanism

A technology of operating mechanism and water turbine, which is applied in the direction of machine/engine, reaction engine, hydroelectric power generation, etc., can solve the problems of inability to complete the design of the propeller mechanism, poor casting, poor processing technology, and impact on the reliability of connecting parts, etc. Ingenious structural design, compact structure, and the effect of improving operating stability

Pending Publication Date: 2019-12-13
CHONGQING WATER TURBINE WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both operating mechanisms need to use a connecting rod to transmit power, instead of the driving parts directly driving the blade rocker arm. There are two sets of friction pairs and related parts at both ends of the connecting rod, which occupy a large space and a large number of parts. The connecting parts The reliability of the blade is also affected. The design of the two typical blade operating mechanisms is difficult and complicated. The main support part of the runner body is double-layered inside and outside, and the casting and processing technology is not good, especially in the This problem is particularly prominent in small and medium-sized propeller turbines, and it is almost impossible to complete the design of the propeller mechanism

Method used

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  • Rotation paddle type water turbine paddle operation mechanism
  • Rotation paddle type water turbine paddle operation mechanism
  • Rotation paddle type water turbine paddle operation mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: as figure 1 , 2 As shown, a paddle type water turbine blade operating mechanism includes a runner body 1, on which at least three blades 2 are arranged, and in the runner body 1 is provided a The rocker arm 3 is provided with a piston mechanism with a slider 4 at the center of the runner body 1, the slider 4 is connected with the rocker arm 3, and an operating oil pipe 5 is arranged at the center of the piston mechanism. Both ends of the piston mechanism are provided with a short shaft 6 and a main shaft 7 respectively connected to the runner body 1 .

[0026] Wherein, the piston mechanism includes a piston groove body 8, the slider 4 is arranged on the piston groove body 8, and a right piston 9 connected with the piston groove body 8 is arranged on the right side of the piston groove body 8. The main shaft 7 is arranged outside the right piston 9 .

[0027] To further describe, a sliding groove 10 is provided on the outer wall of the piston tank body 8...

Embodiment 2

[0030] Embodiment 2: as image 3 As shown, in this embodiment, the piston tank 8 is square, and four slide grooves 10 are evenly arranged on the piston tank 8; the number of the sliders 4 is four, and the four sliders 4 are respectively Located in four sliding slots 10; the sliding slots 10 are respectively connected with corresponding rocker arms 3 through pins.

[0031] In the present invention, one is that the connecting rod is no longer needed; the other is that the axial stroke of the slider 4 is the sine value of the center radius corner of the pin on the rocker arm, and the radial stroke is a cosine value, and the general blade 2 corners will not Over 36°, the sine value of the axial travel will be much greater than the cosine value of the radial travel. The axial space is relatively large; while the radial stroke is small, the required movement space is also small, and the radius of the rocker arm 3 can be appropriately increased in the limited space——the force arm, t...

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Abstract

The invention discloses a rotation paddle type water turbine paddle operation mechanism. A runner body is included and provided with at least three blades. A rocker connected with the blades is arranged in the runner body. The center of the runner body is provided with a piston mechanism with a sliding block. The sliding block is connected with the rocker. An operation oil pipe is arranged at thecenter of the piston mechanism. The two ends of the piston mechanism are provided with a short shaft and a main shaft which are connected with the runner body correspondingly. The rotation paddle typewater turbine paddle operation mechanism has the advantages that structure design is ingenious, usage is reliable, and cost is low; meanwhile, by means of the rotation paddle type water turbine paddle operation mechanism, the paddle motion track can be opened in a limited manner in the preset range; friction pairs are reduced, and the transmission efficiency is higher; the arrangement of the number of water turbine rotation part components is reduced; the occupied structure space is reduced, and the structure is more compact; the runner body is simplified to be only provided with an outer layer instead of an inner layer and an outer layer, and the casting and machining difficulty is lowered; and the design and manufacturing period is shortened, and cost is reduced.

Description

technical field [0001] The invention relates to a paddle type water turbine, in particular to a blade operating mechanism of a paddle type water turbine. Background technique [0002] At present, the three-blade double-piston "L" type slider operating mechanism of the paddle turbine runner is installed in the runner body of the rotating part of the unit. It is a specific structure to realize the expected function in a given limited space. How to maximize the It is very important to make reasonable use of this limited space as much as possible. [0003] There are two traditional types of existing propeller operating mechanisms, one is a double-acting piston (piston-moving) matched with an operating frame with an ear handle at one end, and then drives the propeller rocker arm through a connecting rod; the other is a double-acting piston The end of one side of the cylinder (the cylinder moves and the piston does not move) is directly provided with an ear handle fork, and a con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03B3/14
CPCF03B3/14F03B3/145Y02E10/20Y02P70/50
Inventor 王怀平
Owner CHONGQING WATER TURBINE WORKS
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