A device for adjusting the short axis of an oil receiver

Abstract

The application provides a kind of oil receiver short shaft axis adjusting device, comprising: adjusting component, the adjusting component includes fixed plate and adjusting lever, the fixed plate is set on rotary oil pan, the adjusting lever is set on the fixed plate, the adjusting lever can be moved towards oil receiver short shaft on the fixed plate;Measurement component, the measurement component includes measuring frame and measurer, the measuring frame is set on fixed oil basin, the measurer is set on the measuring frame and its detection end is in contact with the outer circumference of oil receiver short shaft;The utility model is installed on rotary oil pan by adjusting component, and is symmetrically arranged, the measuring frame is installed on fixed oil basin, and is also symmetrically arranged, can detect the offset and swing degree of oil receiver short shaft axis in real time, accurately, to carry out corresponding adjustment, compared with traditional manual measurement, greatly improves the measurement accuracy and efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of hydraulic turbine equipment, and particularly relates to a short shaft axis adjusting device of an oil receiver. BACKGROUND

[0002] The runner blade adjustable mechanism of the axial flow variable pitch hydraulic turbine has a special structure and is composed of a runner body, an operating mechanism and an oil receiver. The oil receiver is a key component for oil pressure transmission and is responsible for guiding external pressure oil into the operating mechanism in the runner body. The short shaft is a transmission connecting piece between the oil receiver and the operating mechanism, and the axis centering precision of the short shaft plays a decisive role and directly affects the pitch blade adjusting sensitivity, the sealing system leakage, the unit vibration level and the bearing wear rate. When the axis of the short shaft of the oil receiver is adjusted in the prior art, the adjustment is not accurate and is prone to cause problems such as abnormal wear of the floating shoe, eccentric wear of the sealing ring, oil leakage and jerking of the servomotor. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at solving one of the technical problems existing in the prior art or related art.

[0004] In order to solve the above problems, the application provides a short shaft axis adjusting device of an oil receiver, which comprises:

[0005] An adjusting assembly, which comprises a fixed plate and an adjusting rod, the fixed plate is arranged on a rotating oil pan, the adjusting rod is arranged on the fixed plate, and the adjusting rod can move towards the short shaft of the oil receiver on the fixed plate;

[0006] A measuring assembly, which comprises a measuring frame and a measurer, the measuring frame is arranged on a fixed oil basin, and the measurer is arranged on the measuring frame and the detection end thereof is in contact with the outer circumference of the short shaft of the oil receiver.

[0007] Optionally, the fixed plate comprises:

[0008] A bottom plate, which is arranged on the rotating oil pan, and a plurality of mounting holes are formed in the bottom plate;

[0009] A vertical plate, which is arranged on the bottom plate, and adjusting holes are formed in the vertical plate at intervals, and the adjusting rod is arranged in the adjusting hole.

[0010] Optionally, the adjusting rod is threadedly connected with the adjusting hole.

[0011] Optionally, the fixed plate further comprises a fixing rib, and the fixing rib is arranged between the bottom plate and the vertical plate.

[0012] Optionally, the measuring frame comprises:

[0013] A frame body, which is arranged on the fixed oil basin;

[0014] Telescopic plates are arranged on the frame body at intervals, and the measuring device is arranged on the telescopic plates.

[0015] Optionally, the telescopic plates comprise:

[0016] A first plate body is arranged on the frame body at a first end;

[0017] A second plate body is slidably connected to a second end of the first plate body, and the measuring device is arranged on the second plate body.

[0018] Optionally, a fixing hole is formed in the first plate body, and a connecting piece is arranged on the second plate body, the connecting piece passes through the fixing hole to fix the second plate body on the first plate body.

[0019] Optionally, a sliding cavity is formed in the middle of the first plate body, and the second plate body is slidably arranged in the sliding cavity, and a fastener is arranged on the first plate body.

[0020] Optionally, a universal arm is further arranged on the second plate body, and the measuring device is arranged on the universal arm.

[0021] Optionally, the measuring device is a dial indicator or a laser measuring instrument.

[0022] Beneficial effects

[0023] The oil receiver short shaft axis adjusting device provided in the embodiment of the utility model, through the adjustment assembly installed on the rotating oil pan, and two by two symmetrical arrangement, the measurement assembly is installed on the fixed oil basin, also two by two symmetrical arrangement, can real-time, accurate detection oil receiver short shaft axis deviation and swing degree, to carry out corresponding adjustment, compared with traditional manual measurement, greatly improve the measurement accuracy and efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is the structural drawing of the oil receiver short shaft axis adjusting device of the utility model;

[0025] Fig. 2 It is the adjustment assembly structure diagram of the oil receiver short shaft axis adjusting device of the utility model;

[0026] Fig. 3 It is the measurement assembly structure diagram of the oil receiver short shaft axis adjusting device of the utility model.

[0027] The reference signs are represented as:

[0028] 1. Adjustment component; 11. Fixing plate; 111. Base plate; 112. Vertical plate; 113. Fixing rib; 12. Adjusting rod; 2. Measuring component; 21. Measuring frame; 211. Frame body; 212. Telescopic plate; 2121. First plate body; 2122. Second plate body; 2123. Connector; 22. Measuring device; 23. Universal arm; 3. Oil receiver short shaft; 4. Rotating oil pan; 5. Fixing oil pan. Detailed Implementation

[0029] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0033] See also Figs. 1-3 As shown, an embodiment of this application provides an oil receiver short shaft axis adjustment device, comprising:

[0034] Adjustment component 1, the adjustment component 1 includes a fixed plate 11 and an adjusting rod 12, the fixed plate 11 is disposed on the rotating oil pan, the adjusting rod 12 is disposed on the fixed plate 11, and the adjusting rod 12 can move on the fixed plate 11 toward the short axis of the oil receiver;

[0035] The measuring component 2 includes a measuring frame 21 and a measuring device 22. The measuring frame 21 is mounted on a fixed oil pan, and the measuring device 22 is mounted on the measuring frame 21 with its detection end in contact with the outer circumference of the short shaft of the oil receiver.

[0036] Specifically, the adjustment assembly 1 includes a fixed plate 11 and an adjusting rod 12. The fixed plate 11 is securely mounted on the rotating oil pan 4 with bolts, providing support for the entire adjustment assembly 1. The adjusting rod 12 is mounted on the fixed plate 11 and is connected to the fixed plate 11 via a sliding or threaded connection, allowing it to move on the fixed plate 11 towards the short shaft 3 of the oil receiver. The operator uses the adjusting rod 12 to push the short shaft 3 of the oil receiver towards the target direction, thereby adjusting the axis of the short shaft 3 of the oil receiver.

[0037] The measuring component 2 monitors the position of the short shaft 3 of the oil receiver in real time, providing accurate data for the adjustment component 1. The measuring component 2 includes a measuring frame 21 and a measuring device 22. The measuring frame 21 is fixedly installed on the fixed oil pan 5, which can stably support the measuring device 22. The measuring device 22 is set on the measuring frame 21, and its detection end directly contacts the outer circumference of the short shaft 3 of the oil receiver. It can detect the offset and sway of the axis of the short shaft 3 of the oil receiver in real time and accurately, so as to make corresponding adjustments. Compared with traditional manual measurement, the measurement accuracy and efficiency are greatly improved.

[0038] In use, the initial state of the short shaft 3 of the oil receiver is fully measured by the measuring component 2 to obtain the axis deviation data. Then, according to the measurement data, the operator uses the adjusting component 1 to make targeted adjustments to the short shaft 3 of the oil receiver by rotating the adjusting rod 12. During the adjustment process, the measuring component 2 continuously monitors in real time and provides timely feedback on the adjustment effect so that the operator can further fine-tune the adjusting rod 12 according to the feedback data until the axis of the short shaft 3 of the oil receiver meets the high-precision calibration requirements.

[0039] There are four adjustment components 1 and four measurement components 2. The adjustment components 1 are symmetrically installed in pairs on the rotating oil pan 4 to adjust the oil receiver short shaft 3 from multiple directions and improve the adjustment efficiency. The measurement components 2 are symmetrically installed in pairs on the fixed oil pan 5 to measure the oil receiver short shaft 3 from multiple directions and improve the measurement accuracy.

[0040] The fixing plate 11 includes:

[0041] A base plate 111 is disposed on the rotating oil pan, and a plurality of mounting holes are provided on the base plate 111;

[0042] A vertical plate 112 is disposed on the base plate 111. Adjustment holes are spaced apart on the vertical plate 112, and an adjustment rod 12 is disposed in the adjustment holes.

[0043] Specifically, the fixing plate 11 includes a base plate 111 and a vertical plate 112. The base plate 111 is used to connect with the rotating oil pan 4. Several mounting holes are evenly provided on the base plate 111, which match the threaded holes on the rotating shaft disc. It can be tightly fixed to the rotating oil pan 4 by high-strength bolts. After use, it is also convenient to disassemble and assemble the fixing plate 11, thus improving work efficiency.

[0044] The vertical plate 112 is vertically mounted on the base plate 111 and connected to the base plate 111 by welding or high-strength bolts to form a stable L-shaped structure. Adjustment holes are spaced apart on the vertical plate 112, through which the adjustment rod 12 passes, forming a sliding or threaded connection with the vertical plate 112. The spaced design of the adjustment holes provides multiple installation position options for the adjustment rod 12, allowing for flexible adjustment of the rod's installation according to actual needs. This adapts to the adjustment of different models of oil receiver short shafts 3, further enhancing the versatility of the fixing plate 11.

[0045] The adjusting rod 12 is threadedly connected to the adjusting hole.

[0046] Specifically, the adjusting rod 12 and the adjusting hole are connected by threads. Specifically, the outer wall of the adjusting rod 12 is provided with fine thread, and the inner wall of the adjusting hole is provided with a corresponding internal thread. The fine thread design has the characteristics of small pitch and small lead, which can convert the small rotation angle of the adjusting rod 12 into precise linear displacement and achieve micron-level adjustment accuracy.

[0047] When it is necessary to adjust the axis of the short shaft 3 of the oil receiver, the operator rotates the adjusting rod 12, utilizing the transmission characteristics of the thread, causing the adjusting rod 12 to move axially within the adjusting hole. Because the threaded connection has excellent self-locking properties, the adjusting rod 12 can be stably fixed after being adjusted to the target position, and will not be displaced due to vibrations during turbine operation or other external forces, ensuring the reliability of the adjustment effect. Furthermore, the threaded connection facilitates the installation and disassembly of the adjusting rod 12, allowing for quick replacement or reinstallation during equipment commissioning or maintenance, improving work efficiency.

[0048] The fixing plate 11 also includes a fixing rib 113, which is disposed between the bottom plate 111 and the vertical plate 112.

[0049] Specifically, two fixing ribs 113 are connected between the base plate 111 and the vertical plate 112, which can enhance the connection stability between the base plate 111 and the vertical plate 112.

[0050] The measuring frame 21 includes:

[0051] Frame 211, the frame 211 is mounted on the fixed oil pan;

[0052] Telescopic plates 212 are spaced apart on the frame 211, and measuring devices 22 are mounted on the telescopic plates 212.

[0053] Specifically, the measuring frame 21 includes a frame body 211 and telescopic plates 212. The frame body 211 has a frame structure and its bottom is connected to the fixed oil pan 5. The telescopic plates 212 are spaced apart on the frame body 211, and the measuring device 22 is mounted on the telescopic plates 212. By extending and retracting the telescopic plates 212, the position of the measuring device 22 can be flexibly adjusted so that its detection end accurately contacts different parts of the outer circumference of the oil receiver short shaft 3. When dealing with oil receiver short shafts 3 of different models or sizes, the operator can adjust the extension length of the telescopic plates 212 manually or electrically according to actual needs, so that the measuring device 22 can quickly and accurately reach the appropriate measurement position without disassembling and reinstalling the measuring components 2, which greatly improves the flexibility and efficiency of the measurement work.

[0054] Among them, there are three telescopic plates 212, which can measure and detect the axis of the oil receiver short shaft from three different heights, thereby improving the accuracy of the detection.

[0055] The telescopic plate 212 includes:

[0056] A first plate 2121, with its first end disposed on the frame 211;

[0057] The second plate 2122 is slidably connected to the second end of the first plate 2121, and the measuring device 22 is disposed on the second plate 2122.

[0058] Specifically, the telescopic plate 212 includes a first plate body 2121 and a second plate body 2122. The first end of the first plate body 2121 is firmly set on the frame 211 by means of welding, bolt fastening or tenon and mortise structure, etc. The second plate body 2122 is slidably connected to the second end of the first plate body 2121, and the measuring device 22 can be adjusted according to the usage requirements.

[0059] The first plate 2121 has a fixing hole, and the second plate 2122 has a connector 2123. The connector 2123 passes through the fixing hole to fix the second plate 2122 onto the first plate 2121.

[0060] Specifically, the first plate 2121 has mounting holes, which are elongated structures. The second plate 2122 has a connector 2123 installed on it. The connector 2123 can fix the second plate 2122 onto the first plate 2121. The connector 2123 consists of a screw and a nut. The screw passes through the mounting holes and is installed on the second plate 2122. The nut is installed on the screw to fix the second plate 2122. The screw can move within the mounting holes to adjust the position of the measuring device 22.

[0061] The first plate 2121 has a sliding cavity in the middle, and the second plate 2122 is slidably disposed in the sliding cavity. Fasteners are provided on the first plate 2121.

[0062] Specifically, a sliding cavity is formed in the middle of the first plate 2121, the shape of which is adapted to the outer height of the second plate 2122 to ensure that the second plate 2122 can slide smoothly within the cavity. Guide rails or limiting bosses are provided on the side walls or groove walls of the sliding cavity. These guiding structures cooperate with the corresponding sliding grooves or recesses on the second plate 2122 to guide the sliding of the second plate 2122, preventing it from deviating or shaking during sliding, ensuring that the measuring device 22 always moves along the predetermined trajectory, thereby improving the accuracy of the measurement.

[0063] The fastener is designed to fix the slidable second plate 2122 inside the first plate 2121. It is a type of screw. The first plate 2121 has a threaded hole on its side wall or top. When the second plate 2122 slides to the target measurement position, the bolt is passed through the corresponding through hole and screwed into the threaded hole. By tightening the nut, the bolt applies pressure to the second plate 2122, thereby firmly fixing it in the sliding cavity. This ensures that the second plate 2122 remains stable and does not shift under the strong vibration environment of the turbine operation.

[0064] The second plate 2122 is also provided with a universal arm 23, and the measuring device 22 is provided on the universal arm 23.

[0065] The measuring instrument 22 is a dial indicator or a laser measuring instrument.

[0066] Specifically, the universal arm 23 is mounted on the second plate 2122, with one end securely connected to the second plate 2122 via a rotatable ball joint or multi-axis hinge structure. This ensures that while providing flexible rotational freedom, it can withstand the weight of the measuring instrument 22 and external forces generated during measurement. The universal arm 23 can bend and rotate freely in multiple dimensions. The operator can adjust the rotational resistance of the universal arm 23 according to actual needs, easily adjusting the position and angle of the measuring instrument 22 while maintaining stability after the measurement position is determined, preventing slight shaking from affecting the measurement results.

[0067] The other end of the universal arm 23 is equipped with a mounting interface that is compatible with the mounting position of the measuring device 22. The measuring device 22 can be quickly mounted onto the universal arm 23 using methods such as bolt tightening or snap-fit ​​connection. This allows the measuring device 22 to be adjusted flexibly to any position and angle on the outer circumference of the oil receiver's short shaft, no longer limited to measurement in a single direction. This is particularly suitable for scenarios with complex oil receiver short shaft structures and limited measurement space.

[0068] The measuring instrument 22 can be a dial indicator or a laser measuring instrument. The dial indicator, mounted on the universal arm 23, can be adjusted flexibly by the universal arm 23 to accurately place the measuring rod against the measuring part on the outer circumference of the oil receiver's short shaft. The high precision of the dial indicator enables it to detect displacement changes at the micrometer level, and it is simple to operate and provides intuitive readings.

[0069] The laser measuring instrument, mounted on the universal arm 23, can easily adjust its emission angle and position for non-contact measurement of the oil receiver's short shaft. This measurement method avoids wear on the surface of the oil receiver's short shaft caused by contact measurement, and offers high measurement speed and data acquisition efficiency. The laser measuring instrument also features automatic data processing and wireless transmission capabilities, allowing measurement data to be transmitted to the control system in real time for quick analysis and adjustment by operators.

[0070] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A device for adjusting the short shaft axis of an oil receiver, characterized in that, include: Adjustment assembly (1), the adjustment assembly (1) includes a fixed plate (11) and an adjusting rod (12), the fixed plate (11) is disposed on the rotating oil pan, the adjusting rod (12) is disposed on the fixed plate (11), and the adjusting rod (12) can move on the fixed plate (11) toward the short shaft of the oil receiver; The measuring component (2) includes a measuring frame (21) and a measuring device (22). The measuring frame (21) is mounted on a fixed oil pan, and the measuring device (22) is mounted on the measuring frame (21) with its detection end in contact with the outer circumference of the short shaft of the oil receiver.

2. The oil receiver short shaft axis adjustment device according to claim 1, characterized in that, The fixing plate (11) includes: A base plate (111) is disposed on the rotating oil pan, and the base plate (111) is provided with a plurality of mounting holes; A vertical plate (112) is disposed on the base plate (111). Adjustment holes are spaced apart on the vertical plate (112), and the adjustment rod (12) is disposed in the adjustment holes.

3. The oil receiver short shaft axis adjustment device according to claim 2, characterized in that, The adjusting rod (12) is threadedly connected to the adjusting hole.

4. The oil receiver short shaft axis adjustment device according to claim 3, characterized in that, The fixing plate (11) also includes a fixing rib (113), which is disposed between the bottom plate (111) and the vertical plate (112).

5. The oil receiver short shaft axis adjustment device according to claim 1, characterized in that, The measuring frame (21) includes: A frame (211) is mounted on the fixed oil pan; Telescopic plates (212) are spaced apart on the frame (211), and measuring devices (22) are mounted on the telescopic plates (212).

6. The oil receiver short shaft axis adjustment device according to claim 5, characterized in that, The telescopic plate (212) includes: The first plate (2121) has its first end disposed on the frame (211); The second plate (2122) is slidably connected to the second end of the first plate (2121), and the measuring device (22) is disposed on the second plate (2122).

7. The oil receiver short shaft axis adjustment device according to claim 6, characterized in that, The first plate (2121) has a fixing hole, and the second plate (2122) has a connector (2123). The connector (2123) passes through the fixing hole to fix the second plate (2122) onto the first plate (2121).

8. The oil receiver short shaft axis adjustment device according to claim 6, characterized in that, The first plate (2121) has a sliding cavity in the middle, and the second plate (2122) is slidably disposed in the sliding cavity. Fasteners are provided on the first plate (2121).

9. The oil receiver short shaft axis adjustment device according to claim 6, characterized in that, The second plate (2122) is also provided with a universal arm (23), and the measuring device (22) is provided on the universal arm (23).

10. The oil receiver short shaft axis adjustment device according to claim 1, characterized in that, The measuring instrument (22) is a dial indicator or a laser measuring instrument.

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