Dynamic balance adjusting device for hydraulic generator rotor

Abstract

The utility model provides a dynamic balance adjusting device for a hydro-generator rotor, and relates to the technical field of hydro-generator rotors. A buffer ring is slidably mounted at the left end of the annular side wall of the main shaft; and a buffer cylinder is fixedly mounted at the edge of the left end of the buffer ring. When the rotor accidentally moves leftwards through rotation, the spring on the buffer column can timely eject the buffer ring and the dynamic balance block rightwards for resetting, so that tiny adjustment can be realized, the balance of the rotor is ensured, the two ends of the rotor are limited by the static balance block and the dynamic balance block respectively, the rotor cannot incline during rotation, and the service life of the rotor is prolonged. The device can effectively realize dynamic balance adjustment of the rotor of the hydro-generator, and solves the problems that the rotor can rotate during operation of the hydro-generator, so that dynamic balance limitation needs to be carried out on the two ends of the rotor, and the rotor cannot be reset in time once moving in the long-term use process of the rotor. And the stability and the safety of the generator may be influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to water turbine generator rotor technical field especially relates to a water turbine generator rotor dynamic balance adjusting device. BACKGROUND

[0002] Water turbine generator has important position in power generation industry, can effectively utilize water resources, reduces the pollution to the environment, is one of the representatives of clean energy, and the rotor of water turbine generator is one of the most important components in the generator, and the balance of the rotor is very important to the performance and stability of the whole equipment, during the operation, the rotor will be unbalanced due to various reasons, leading to unstable operation of the generator, and even damaging the equipment, therefore, the dynamic balance adjustment of the rotor is very important, the traditional rotor dynamic balance adjustment is mainly realized through adding balance iron block or adjusting the position of balance iron block, but this method has certain limitations, the operation is complex, the effect is unstable, and the adjustment efficiency is low.

[0003] During the use of the adjusting device, the water turbine generator operating rotor rotates, therefore, the two ends of the rotor need to be dynamically balanced, if the rotor moves during long-term use, the rotor cannot be reset in time, which may affect the stability and safety of the generator. UTILITY MODEL CONTENTS

[0004] The rotor rotating unexpectedly moves to the left, the spring on the buffer column timely pushes the buffer ring and the dynamic balance block to the right for resetting, small adjustment can be realized, and the balance of the rotor is ensured, the two ends of the rotor are limited by the static balance block and the dynamic balance block respectively, and the rotor does not tilt during rotation, the device can effectively realize the dynamic balance adjustment of the water turbine generator rotor, improves the operation efficiency of the whole power generation system, reduces the vibration and noise of the rotor through accurate dynamic balance adjustment, improves the stability and reliability of the generator, and makes the generator run more smoothly.

[0005] In a first aspect, the utility model provides a water turbine generator rotor dynamic balance adjusting device, and specifically includes: a main shaft, a buffer ring is slidably installed at the left end of the annular side wall of the main shaft, a buffer cylinder is fixedly installed at the edge of the left end of the buffer ring, guide strips are uniformly fixedly installed on the inner side wall of the buffer cylinder, six connecting grooves are formed in the left side wall of the buffer ring, and buffer columns are fixedly installed at the connecting grooves.

[0006] The left end of the six buffer columns is respectively fixedly installed with a baffle; the left end of the main shaft is fixedly installed with a fixed disc; six clamping grooves are formed in the left side wall of the fixed disc, and threaded grooves are formed in the two ends of the fixed disc clamping grooves; and buffer holes are uniformly formed in the edge of the fixed disc, and guide notches are uniformly formed in the annular side wall of the outer end of the fixed disc.

[0007] Six stabilizing blocks are fixedly installed on the left side wall of the fixed disc, threaded bolts are rotatably inserted into the two ends of the stabilizing blocks, notches are formed in the right end of the six stabilizing blocks, clamping blocks are fixedly installed on the right side wall of the six stabilizing blocks, positioning blocks are fixedly installed on the inner side wall of the six stabilizing block notches, and a positioning ring is installed on the left side wall of the fixed disc, and positioning grooves are uniformly formed in the side wall of the positioning ring.

[0008] In at least some embodiments, a rotor is fixedly installed on the annular side wall of the main shaft, the right end of the main shaft is rotatably installed on the motor shell, and a static balancing block is installed on the right side wall of the rotor.

[0009] In at least some embodiments, a fixed ring is fixedly installed on the right side wall of the static balancing block, and an anti-falling ring is fixedly installed on the right side wall of the static balancing block.

[0010] In at least some embodiments, an anti-falling groove is formed in the left side wall of the anti-falling ring, and a dynamic balancing block is installed on the left side wall of the rotor.

[0011] The utility model provides a kind of water turbine generator rotor dynamic balance adjusting device, with following beneficial effects:

[0012] In the utility model, when the rotor rotates and moves leftward accidentally, the spring on the buffer column will push the buffer ring and dynamic balancing block rightward to reset in time, to realize slight adjustment, ensure the balance of the rotor, so that the two ends of the rotor are limited by static balancing block and dynamic balancing block, and the rotor will not tilt when rotating, the device can effectively realize the dynamic balance adjustment of water turbine generator rotor, improve the operation efficiency of the entire power generation system, reduce the vibration and noise of the rotor by accurate dynamic balance adjustment, improve the stability and reliability of the generator, so that the generator runs more smoothly.

[0013] The spring on the buffer column pushes the buffer ring and dynamic balancing block rightward to effectively limit the rotating rotor, static balancing block and dynamic balancing block limit the two sides of the rotor respectively, the rotor is stably limited by static balancing block and dynamic balancing block during rotation, so that the rotor will not tilt when rotating, the dynamic balance adjustment of the rotor can reduce the unbalance force and unbalance moment of the rotor during operation, thereby reducing vibration and noise, making the rotor more stable during operation, and reducing the occurrence of faults and accidents. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced as follows.

[0015] The drawings described in the following description only relate to some embodiments of the present application, and are not a limitation of the present application.

[0016] In the drawings:

[0017] Figure 1 A left front upper axial structure schematic diagram of the present application is shown;

[0018] Figure 2 A static balance block, buffer column and stabilizing block partial structure schematic diagram of the present application is shown;

[0019] Figure 3 A buffer ring and fixed disc partial disassembly structure schematic diagram of the present application is shown;

[0020] Figure 4 An explosion structure schematic diagram of the present application is shown.

[0021] LIST OF REFERENCE NUMERALS

[0022] 1, main shaft; 101, rotor; 102, motor housing; 103, static balance block; 104, fixed ring; 105, anti-drop ring; 106, anti-drop groove; 107, dynamic balance block; 2, buffer ring; 201, buffer cylinder; 202, guide bar; 203, connecting groove; 204, buffer column; 205, baffle; 3, fixed disc; 301, buffer hole; 302, guide notch; 303, stabilizing block; 304, clamping block; 305, positioning block; 306, positioning ring. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be clearly and completely described below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0024] Embodiment one: please refer to Figures 1 to 4 :

[0025] The utility model provides a kind of water turbine generator rotor dynamic balance adjusting device, comprising: main shaft 1;Buffer ring 2 is slidably installed in the left end of the annular side wall of main shaft 1;Buffer cylinder 201 is fixedly installed at the edge of the left end of buffer ring 2, the inner side wall of buffer cylinder 201 is attached to the outer end side wall of fixed disc 3, buffer cylinder 201 effectively protects spring on all buffer columns 204, so that the spring on buffer column 204 cannot be contacted by the sundries outside, and the inner side wall of buffer cylinder 201 is uniformly fixedly installed with guide strip 202;Guide strip 202 is slidably installed in guide notch 302, when buffer ring 2 slides left and right, guide strip 202 is limited by guide notch 302, buffer ring 2 can only slide left and right, to prevent buffer ring 2 from deviating or tilting when sliding left and right, buffer ring 2 cannot be attached to the side wall of dynamic balance block 107 smoothly, six connecting grooves 203 are formed in the left side wall of buffer ring 2, and buffer column 204 is fixedly installed at connecting groove 203;Spring is sleeved on the annular side wall of buffer column 204, and buffer column 204 penetrates in buffer hole 301, baffle 205 is attached to the side wall of fixed disc 3, buffer ring 2 is attached to the side wall of dynamic balance block 107, and six buffer columns 204 are fixedly installed with baffle 205 respectively at the left end;Fixed disc 3 is fixedly installed at the left end of main shaft 1;Six clamping grooves are formed in the left side wall of fixed disc 3, and threaded grooves are formed at the two ends of fixed disc 3 clamping groove.

[0026] The annular side wall of the main shaft 1 is fixedly installed with the rotor 101, when the water turbine generator is impacted and moves irregularly, the rotor 101 moves left during rotation, the buffer ring 2 and the buffer cylinder 201 are pushed left by the rotor 101, the spring on the buffer column 204 is compressed by the buffer ring 2 and the fixed disc 3, and the buffer column 204 and the baffle 205 move left to buffer and protect the rotor 101, when the water turbine generator normally operates, the spring on the buffer column 204 pushes the buffer ring 2 and the dynamic balance block 107 right to effectively limit the rotation of the rotor 101, the right end of the main shaft 1 is rotatably installed on the motor shell 102, the motor shell 102 is fixedly installed on the water turbine generator, the right side wall of the rotor 101 is installed with the static balance block 103, the static balance block 103 and the dynamic balance block 107 limit the two sides of the rotor 101 respectively, the rotor 101 is stably limited by the static balance block 103 and the dynamic balance block 107 during rotation, and the rotor 101 does not tilt during rotation, the right side wall of the static balance block 103 is fixedly installed with the fixed ring 104, the right side wall of the static balance block 103 is fixedly installed with the anti-disengagement ring 105, the right end of the rotor 101 is installed with the static balance block 103 and the anti-disengagement ring 105, the rotor 101 is blocked and limited rightward by the anti-disengagement ring 105, the anti-disengagement ring 105 is attached to the side wall of the motor shell 102, the anti-disengagement ring 105 cannot move left and right on the main shaft 1, and the left side wall of the anti-disengagement ring 105 is provided with the anti-disengagement groove 106, the fixed ring 104 is rotatably inserted into the anti-disengagement groove 106, and the left side wall of the rotor 101 is installed with the dynamic balance block 107.

[0027] The edge of the fixed disc 3 is uniformly provided with the buffer holes 301, the annular side wall of the outer end of the fixed disc 3 is uniformly provided with the guide notches 302, the left side wall of the fixed disc 3 is fixedly installed with the six stabilizing blocks 303, the two ends of the stabilizing block 303 are rotatably inserted with the penetrating bolts, the right ends of the six stabilizing blocks 303 are respectively provided with the notches, the notches of the stabilizing block 303 are clamped at the left end of the positioning ring 306, the positioning block 305 is inserted into the positioning groove of the positioning ring 306, then the clamping block 304 is clamped in the clamping groove of the fixed disc 3, then the bolts on the stabilizing block 303 are rotatably inserted into the threaded grooves of the fixed disc 3, the stabilizing block 303 is fixedly installed on the fixed disc 3, and the stabilizing block 303 also stably limits the positioning ring 306, the buffer ring 2 cannot push the fixed disc 3 and the positioning ring 306 leftward, the right side wall of the six stabilizing blocks 303 is respectively fixedly installed with the clamping block 304, the inner side wall of the notch of the six stabilizing blocks 303 is respectively fixedly installed with the positioning block 305, the left side wall of the fixed disc 3 is installed with the positioning ring 306, and the side wall of the positioning ring 306 is uniformly provided with the positioning grooves.

[0028] In the embodiment one, the fixed ring 104 is rotatably inserted into the anti-disengagement groove 106, the anti-disengagement ring 105 is attached to the side wall of the motor shell 102, the anti-disengagement ring 105 cannot move left and right on the main shaft 1, the left side wall of the anti-disengagement ring 105 is provided with the anti-disengagement groove 106, the right end of the main shaft 1 is rotatably installed on the motor shell 102, the motor shell 102 is fixedly installed on the water turbine generator, the right side wall of the rotor 101 is installed with the static balance block 103, the static balance block 103 and the dynamic balance block 107 limit the two sides of the rotor 101 respectively, the rotor 101 is stably limited by the static balance block 103 and the dynamic balance block 107 during rotation, the rotor 101 does not tilt during rotation, the right side wall of the static balance block 103 is fixedly installed with the fixed ring 104, the right side wall of the static balance block 103 is fixedly installed with the anti-disengagement ring 105, the right end of the rotor 101 is installed with the static balance block 103 and the anti-disengagement ring 105, the rotor 101 is blocked and limited rightward by the anti-disengagement ring 105, the anti-disengagement ring 105 is attached to the side wall of the motor shell 102, the anti-disengagement ring 105 cannot move left and right on the main shaft 1, the left side wall of the anti-disengagement ring 105 is provided with the anti-disengagement groove 106, the left side wall of the rotor 101 is installed with the dynamic balance block 107. Figure 1 andFigure 4 As shown, six stabilizing blocks 303 are fixedly installed on the left side wall of the fixed disc 3, and through bolts are rotatably inserted into both ends of the stabilizing blocks 303. The bolts on the stabilizing blocks 303 are removed, and the stabilizing blocks 303 are fixedly welded on the fixed disc 3 to stably limit the stabilizing blocks 303. In this way, the stabilizing blocks 303 will not move when touched, thereby saving the use of bolts and avoiding the loosening of the bolts after long-term use.

[0029] The working principle of the embodiment is as follows: in use, the notches of the stabilizing blocks 303 are clamped at the left end of the positioning ring 306, the positioning blocks 305 are inserted into the positioning grooves of the positioning ring 306, the clamping blocks 304 are clamped in the clamping grooves of the fixed disc 3, and the bolts on the stabilizing blocks 303 are rotatably inserted into the threaded grooves of the fixed disc 3 to fixedly install the stabilizing blocks 303 on the fixed disc 3. When the hydraulic generator is impacted and moves irregularly, the rotor 101 will also move to the left during rotation, and the rotor 101 will push the buffer ring 2 and the buffer cylinder 201 to the left. At this time, the springs on the buffer columns 204 will be compressed by the buffer ring 2 and the fixed disc 3, and the buffer columns 204 and the baffles 205 will also move to the left to buffer and protect the rotor 101. When the hydraulic generator operates normally, the springs on the buffer columns 204 will push the buffer ring 2 and the dynamic balancing blocks 107 to the right to effectively limit the rotating rotor 101. The static balancing blocks 103 and the dynamic balancing blocks 107 limit the two sides of the rotor 101, respectively. The rotor 101 is stably limited by the static balancing blocks 103 and the dynamic balancing blocks 107 during rotation, and the rotor 101 will not tilt during rotation.

[0030] In this article, the following points need attention:

[0031] 1. The drawings of the disclosed embodiment only relate to the structures involved in the disclosed embodiment, and other structures can refer to the general design.

[0032] 2. In the case of no conflict, the embodiments and features in the embodiments of the disclosure can be combined with each other to obtain new embodiments.

[0033] The above is only a specific implementation of the disclosure, but the protection scope of the disclosure is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the disclosure, which should be covered within the protection scope of the disclosure. Therefore, the protection scope of the disclosure should be subject to the protection scope of the claims.

Claims

1. A hydro-generator rotor dynamic balancing adjustment device, comprising: The utility model provides a main shaft (1), the left end sliding installation of annular side wall of main shaft (1) has buffer ring (2), its characterized in be that the edge of left end of buffer ring (2) is fixedly installed buffer cylinder (201), and the inner side wall of buffer cylinder (201) is uniformly fixedly installed with guide strip (202), the left side wall of buffer ring (2) is equipped with six connecting grooves (203), and buffer column (204) is fixedly installed at connecting groove (203), and the left end of six buffer columns (204) is fixedly installed with baffle (205) respectively, the left end of main shaft (1) is fixedly installed with fixed disc (3), the left side wall of fixed disc (3) is equipped with six clamping grooves, and the both ends of fixed disc (3) clamping groove are equipped with threaded groove respectively.

2. A dynamic balancing adjustment device for a hydroelectric generator rotor as claimed in claim 1, characterized in that: The annular side wall of main shaft (1) is fixedly installed with rotor (101), the right end of main shaft (1) is rotatably installed on motor housing (102), and the right side wall of rotor (101) is installed with static balance block (103).

3. A hydro-generator rotor dynamic balancing adjustment device according to claim 2, characterized in that: The right side wall of static balance block (103) is fixedly installed with fixed ring (104), and the right side wall of static balance block (103) is fixedly installed with anti-off ring (105).

4. A hydro-generator rotor dynamic balancing adjustment device according to claim 3, characterized in that: The left side wall of anti-off ring (105) is equipped with anti-off groove (106), and the left side wall of rotor (101) is installed with dynamic balance block (107).

5. A dynamic balancing adjustment device for a hydroelectric generator rotor as defined in claim 1, wherein: The edge of fixed disc (3) is uniformly equipped with buffer hole (301), and the annular side wall of outer end of fixed disc (3) is uniformly equipped with guide slot (302).

6. A hydroelectric generator rotor dynamic balancing adjustment device as claimed in claim 1, wherein: The left side wall of fixed disc (3) is fixedly installed with six stabilizing blocks (303), and the both ends of stabilizing block (303) are rotatably inserted with penetrating bolt, and the right end of six stabilizing blocks (303) is equipped with slot respectively, and the right side wall of six stabilizing blocks (303) is fixedly installed with clamping block (304) respectively.

7. A hydro-generator rotor dynamic balancing adjustment device according to claim 6, characterised in that: The inner side wall of six stabilizing blocks (303) slots is fixedly installed with positioning block (305) respectively, the left side wall of fixed disc (3) is installed with positioning ring (306), and the side wall of positioning ring (306) is uniformly equipped with positioning slot.

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