Speed regulating structure of water turbine

Abstract

The invention relates to the technical field of water turbines, in particular to a water turbine speed regulating structure which comprises a supporting disc and an electric air cylinder, a rotating ring is fixedly connected to the surface of the supporting disc, a control ring is movably connected to the supporting disc through the rotating ring, a movable seat is movably connected to the surface of the control ring, and a movable rod is fixedly connected to the surface of the movable seat. An output shaft of the electric air cylinder is movably connected with the movable rod. Through use of the rotating rod and the movable plate, connection and separation between the hinge rod and the crank arm and connection and separation between the hinge rod and the control ring are facilitated, the disassembly and assembly effect on the hinge rod is achieved, under connection of the crank arm and the screw groove, connection of the connecting cap and the screw groove achieves the abutting and supporting effect on the acting position of the pressing plate, and through connection of the pressing plate and the connecting column, the connecting rod can be disassembled and assembled conveniently. The connecting operation of the connecting lever on the supporting disc is facilitated, the dismounting of the connecting lever on the supporting disc is facilitated, and the convenient performance of replacement and maintenance of the hinge rod and the connecting lever is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water turbines, in particular to a water turbine speed regulating structure. Background Art

[0002] Since the water guide mechanism of small reaction turbines has always adopted a crank arm and control ring structure, the speed regulation effect is achieved by controlling the angle of the water guide blades. During operation and maintenance, it is affected by its spatial structure, which makes it inconvenient to operate, labor-intensive and time-consuming, and it is impossible to disassemble and replace individual parts. Summary of the Invention

[0003] The purpose of the present invention is to provide a turbine speed regulating structure to solve the problems raised in the above background technology that the turbine speed regulating structure is affected by its spatial structure during operation and maintenance, which makes operation inconvenient, labor-intensive and time-consuming, and incapable of disassembly and replacement of individual components.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a water turbine speed regulating structure, comprising a support plate and an electric cylinder, wherein the surface of the support plate is fixedly connected to a swivel, the support plate is movably connected to a control ring through the swivel, the surface of the control ring is movably connected to a movable seat, the surface of the movable seat is fixedly connected to a movable rod, the output shaft of the electric cylinder is movably connected to the movable rod, the bottom end of the support plate is movably connected to a water guide plate, the surface of the control ring is movably connected to a hinged rod, the surface of the hinged rod is movably connected to a crank arm, the surface of the crank arm is connected to a connecting cap by a thread, and the surface of the crank arm A screw groove is provided, and the end of the crank arm away from the hinge rod is embedded in the connecting column, and the surface of the connecting column is provided with a first screw hole, and the surface of the first screw hole is connected to the first screw through a thread, and the surface of the connecting column is connected to the pressure plate through the first screw, and the surfaces of the crank arm and the hinge rod are both connected to the rotating rod, and the outer surface of the rotating rod is sleeved with a rotating sleeve, and the surface of the rotating rod is provided with a second screw hole, and the surface of the rotating rod is connected to the second screw through the second screw hole, and the outer surface of the second screw is sleeved with a pressure block, and the surface of the rotating rod is movably connected to the movable plate, and the surfaces of the hinge rod and the control ring are provided with guide grooves.

[0005] Preferably, the electric cylinders are connected to the surface of the control ring in two groups, the movable rods are rotatably connected to the control ring through a movable seat, and the control ring is in a circular ring shape.

[0006] Preferably, the articulated rods are evenly distributed on the surface of the control ring, the water guide plates and the articulated rods are connected one-to-one, the articulated rods are rotatably connected to the control ring through a rotating rod and a rotating sleeve, and the crank arms are rotatably connected to the articulated rods through a rotating rod and a rotating sleeve.

[0007] Preferably, the crank arm is fixedly connected to the water guide plate via a connecting column, and the connecting cap is in contact with the surface of the pressure plate via a screw groove.

[0008] Preferably, the pressing block is in contact with the surface of the movable plate through the second screw and the second screw hole, and the movable plates are distributed in two opposite groups on the surface of the rotating rod.

[0009] Preferably, a rotating ball is movably connected to a surface of the movable plate that contacts the guide groove, and the rotating ball and the guide groove are abutted and rotatably connected.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. Through the connection of the articulated rod and the control ring, and the connection of the articulated rod and the crank arm, the effect of regulating the angle of the water guide plate is achieved. Through the connection of the rotating rod and the rotating sleeve, under the connection of the second screw hole and the second screw, the pressure block and the movable plate are in contact with each other, so as to achieve the support and control effect of the angle of the movable plate on the rotating rod, and achieve the support and limitation effect of the installation and use position of the rotating rod and the rotating sleeve. Through the use of the rotating rod and the movable plate, the connection and separation between the articulated rod and the crank arm, and the articulated rod and the control ring are convenient, so as to achieve the disassembly and assembly effect of the articulated rod. Under the connection of the crank arm and the screw groove, the connection of the connecting cap and the screw groove achieves the abutment and support effect of the action position of the pressure plate. Through the connection of the pressure plate and the connecting column, the connection operation of the crank arm on the support plate is convenient, the disassembly of the crank arm on the support plate is convenient, and the convenience of replacement and maintenance of the articulated rod and the crank arm is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic front perspective view of the structure of the present invention;

[0013] Figure 2 It is a partial three-dimensional schematic diagram of the structure of the present invention;

[0014] Figure 3 It is a partial three-dimensional schematic diagram of the connection structure between the support plate and the water guide plate of the present invention;

[0015] Figure 4 It is a partial three-dimensional schematic diagram of the connection structure of the hinge rod and the crank arm of the present invention;

[0016] Figure 5 It is a partial exploded schematic diagram of the structure of the crank arm of the present invention.

[0017] In the figure: 1. support plate; 2. control ring; 21. swivel; 3. movable seat; 31. movable rod; 32. electric cylinder; 4. water guide plate; 5. hinged rod; 6. crank arm; 61. connecting cap; 62. screw groove; 63. connecting column; 64. first screw hole; 65. pressure plate; 66. first screw; 7. rotating rod; 71. rotating sleeve; 72. second screw hole; 73. second screw; 74. pressure block; 75. movable plate; 76. guide groove. DETAILED DESCRIPTION

[0018] See also Figure 1-5 , an embodiment provided by the present invention:

[0019] A water turbine speed regulating structure includes a support plate 1 and an electric cylinder 32. The surface of the support plate 1 is fixedly connected to a swivel 21. The support plate 1 is movably connected to a control ring 2 through the swivel 21. The surface of the control ring 2 is movably connected to a movable seat 3. The surface of the movable seat 3 is fixedly connected to a movable rod 31. The output shaft of the electric cylinder 32 is movably connected to the movable rod 31. The bottom end of the support plate 1 is movably connected to a water guide plate 4. The surface of the control ring 2 is movably connected to a hinged rod 5. The surface of the hinged rod 5 is movably connected to a crank arm 6. The surface of the crank arm 6 is connected to a connecting cap 61 by a thread. A screw groove 62 is provided on the surface of the crank arm 6. One end of the crank arm 6 away from the hinged rod 5 is engaged with a connecting column 63. The surface of the connecting column 63 is provided with a first screw hole 64. The surface of the first screw hole 64 is connected to a second screw cap 61 by a thread. A screw 66, the surface of the connecting column 63 is connected to the pressure plate 65 through the first screw 66, the surfaces of the crank arm 6 and the hinged rod 5 are connected to the rotating rod 7, the outer surface of the rotating rod 7 is sleeved with a rotating sleeve 71, the surface of the rotating rod 7 is provided with a second screw hole 72, the surface of the rotating rod 7 is connected to the second screw 73 through the second screw hole 72, the outer surface of the second screw 73 is sleeved with a pressure block 74, the surface of the rotating rod 7 is movably connected with a movable plate 75, the surface of the hinged rod 5 and the control ring 2 is provided with a guide groove 76, through the connection of the electric cylinder 32 and the movable rod 31, under the connection of the movable rod 31 and the movable seat 3, the control effect of the rotation of the control ring 2 is achieved, through the connection of the hinged rod 5 and the crank arm 6, and the connection of the crank arm 6 and the water guide plate 4, the effect of regulating the angle of action of the water guide plate 4 on the support plate 1 is achieved.

[0020] Furthermore, the electric cylinder 32 is connected to the surface of the control ring 2 in two groups, and the movable rod 31 is rotatably connected to the control ring 2 through the movable seat 3. The control ring 2 is in a circular ring shape, and is rotatably connected to the output shaft of the electric cylinder 32 and the movable rod 31. Under the connection between the movable seat 3 and the movable rod 31, the movable seat 3 and the control ring 2 are rotatably connected to achieve a control effect on the rotation of the control ring 2.

[0021] Furthermore, the articulated rods 5 are evenly distributed on the surface of the control ring 2, the water guide plates 4 and the articulated rods 5 are connected one-to-one, the articulated rods 5 are rotatably connected to the control ring 2 through the rotating rod 7 and the rotating sleeve 71, and the crank arm 6 is rotatably connected to the articulated rod 5 through the rotating rod 7 and the rotating sleeve 71. Through the rotational connection between the articulated rod 5 and the control ring 2, under the connection between the articulated rod 5 and the crank arm 6, the control effect of the action angle of the water guide plate 4 on the support plate 1 is achieved.

[0022] Furthermore, the crank arm 6 is fixedly connected to the water guide plate 4 through the connecting column 63, and the connecting cap 61 is in contact with the surface of the pressure plate 65 through the screw groove 62. Through the connection between the crank arm 6 and the connecting column 63, under the connection between the connecting column 63 and the first screw hole 64, the connection between the first screw 66 and the first screw hole 64 realizes the supporting effect of the pressure plate 65 connected to the connecting column 63. Through the connection between the connecting cap 61 and the screw groove 62, the abutting support effect of the pressure plate 65 is achieved, and the control effect of the crank arm 6 on the action angle of the water guide plate 4 on the support plate 1 is realized.

[0023] Furthermore, the pressing block 74 is in contact with the surface of the movable plate 75 through the second screw 73 and the second screw hole 72. The movable plates 75 are distributed in two opposite groups on the surface of the rotating rod 7. Through the connection between the rotating rod 7 and the rotating sleeve 71, under the action of the rotating sleeve 71, the rotational connection effect between the crank arm 6 and the articulated rod 5, and the articulated rod 5 and the control ring 2 is realized. Through the connection between the pressing block 74 and the movable plate 75, the connection and disassembly effect between the articulated rod 5 and the crank arm 6, and the control ring 2 and the articulated rod 5 is realized.

[0024] Furthermore, a rotating ball is movably connected to the contact surface of the movable plate 75 and the guide groove 76, and the rotating ball and the guide groove 76 are rotatably connected in abutment with each other, and the support and control effect of the action position of the pressure block 74 is achieved through the connection between the second screw 73 and the second screw hole 72. Under the abutment and rotation of the rotating ball and the guide groove 76 on the movable plate 75, the rotation and stable operation between the articulated rod 5 and the crank arm 6, and the articulated rod 5 and the control ring 2 are facilitated.

[0025] Working principle: When the angle of action of the water guide plate 4 is adjusted, the control ring 2 is rotated through the action of the electric cylinder 32 under the connection of the movable rod 31 and the movable seat 3, so that the angle between the hinged rod 5 and the crank arm 6 changes, so that the angle of action of the water guide plate 4 changes; when the hinged rod 5 and the crank arm 6 are disassembled, the second screw 73 is rotated to separate the pressure block 74 and the movable plate 75. At this time, the angle of action of the movable plate 75 on the rotating rod 7 changes, which facilitates the separation operation between the hinged rod 5 and the crank arm 6, and the hinged rod 5 and the control ring 2; the connecting cap 61 is rotated to separate the connecting cap 61 and the pressure plate 65. At this time, the connecting column 63 and the pressure plate 65 are separated, so as to achieve the separation effect between the crank arm 6 and the connecting column 63, so that the crank arm 6 is separated on the support plate 1, and the disassembly and replacement of the hinged rod 5 and the crank arm 6 are completed, and the operation is simple and convenient.

Claims

1. A turbine speed regulating structure, comprising a support plate and an electric cylinder, characterized in that: The top end face of said sliding arm is fixedly provided with a toothed connecting strip which is cooperatively connected with said toothed connecting strip, and the bottom end face of said toothed connecting strip is connected with said toothed connecting strip by a threaded connecting gear.

2. A water turbine speed regulating structure according to claim 1, characterized in that: The electric cylinders are connected to the surface of the control ring in two groups. The movable rods are rotatably connected to the control ring through a movable seat. The control ring is in a circular ring shape.

3. A turbine speed regulating structure according to claim 1, characterized in that: The hinged rods are evenly distributed on the surface of the control ring, the water guide plates and the hinged rods are connected one by one, the hinged rods are rotatably connected to the control ring through a rotating rod and a rotating sleeve, and the crank arms are rotatably connected to the hinged rods through a rotating rod and a rotating sleeve.

4. A water turbine speed regulating structure according to claim 1, characterized in that: The crank arm is fixedly connected to the water guide plate through a connecting column, and the connecting cap is in contact with the surface of the pressure plate through a screw groove.

5. The water turbine speed regulating structure according to claim 1, characterized in that: The pressing block contacts the surface of the movable plate through the second screw rod and the second screw hole, and the movable plates are distributed on the surface of the rotating rod in two opposite groups.

6. The water turbine speed regulating structure according to claim 1, characterized in that: A rotating ball is movably connected to a surface of the movable plate that contacts the guide groove, and the rotating ball and the guide groove are in abutment and rotational connection.

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