Adjusting mechanism and rotating speed calibrator

Abstract

The utility model discloses an adjusting mechanism and a rotating speed calibrator, and relates to the rotating speed calibrator field, and the adjusting mechanism comprises a lifting assembly comprising a sleeve, a rotating shaft located in the sleeve, a limiting member located on the rotating shaft, an unlocking member located at the top of the rotating shaft, and a motor located at the bottom of the rotating shaft. Through the cooperation between the limiting piece and the unlocking piece, a worker can conveniently adjust the height according to the models of different gears, so that the distance between the inductor and the gear is fixed, the inductor can smoothly receive a gear rotation signal under high-speed rotation, and the working efficiency is improved. Therefore, the accuracy of a simulation test result is ensured.

Description

Technical Field

[0001] The utility model relates to the field of speed calibrators, in particular to an adjusting mechanism and a speed calibrator. Background Art

[0002] The speed calibrator is used to calibrate the physical quantity of speed. Speed ​​calibration is a general term for speed measurement and calibration or verification. Speed ​​calibration uses a speed standard to measure and indicate the error or stability of the speed. The speed device is a very important device in a hydropower plant. The equipment must work stably and reliably to ensure the safe operation of the hydropower plant unit. If there is a false alarm or no alarm in the speed, it will affect the startup process of the unit and cause accidents. More seriously, it will cause the unit to shut down, causing huge economic losses to the power plant. To ensure that the speed measurement and controller can operate stably and reliably, it is particularly important to calibrate the speed measurement and controller regularly.

[0003] The speed detection units of many current verification equipment usually rely on a fixed method to simulate the speed of the gear. This method allows different types of gears to rotate at the same height without adjusting the position of the sensor. However, this also leads to a problem: because different types of gears are also different in size, the actual position between the sensor and the gear may change. This may affect the normal reception signal of the sensor at high speeds, and thus affect the accuracy of the simulation test results. For this reason, an adjustment mechanism and a speed calibrator are proposed. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems and / or the problems existing in the prior art, the present utility model is proposed.

[0006] Therefore, the utility model aims to solve the technical problem that the existing speed tester cannot adjust the position according to the size of the gear in time, so that the signal received by the sensor is biased.

[0007] To solve the above technical problems, the utility model provides the following technical solutions: an adjusting mechanism, including a lifting assembly, including a sleeve, a rotating shaft located inside the sleeve, a limiting member located on the rotating shaft, an unlocking member located at the top of the rotating shaft, and a motor located at the bottom of the rotating shaft.

[0008] As a preferred solution of the adjustment mechanism of the utility model, wherein: the interior of the sleeve is symmetrically provided with limiting grooves, the limiting grooves are arranged in a longitudinal array with respect to the interior of the sleeve, and a first inclined surface is provided on one side of the limiting grooves.

[0009] As a preferred solution of the adjustment mechanism of the utility model, wherein: the limiter comprises a placement groove symmetrically opened on the rotating shaft, a connecting block is movably installed inside the placement groove, a limiter block is arranged on one side of the connecting block, a rotating rod is embedded and installed on the connecting block, and an elastic rubber rod is arranged on the other side of the connecting block;

[0010] The connecting block and the rotating shaft are hinged;

[0011] One end of the elastic rubber rod is connected to the interior of the rotating shaft.

[0012] As a preferred solution of the adjustment mechanism of the utility model, a second inclined surface is provided on one side of the limit block.

[0013] As a preferred solution of the adjustment mechanism of the utility model, wherein: the limit block is engaged with the limit groove, and the first inclined surface and the second inclined surface are movably fitted together.

[0014] As a preferred solution of the adjustment mechanism of the utility model, the unlocking member includes an unlocking rod arranged on the rotating shaft, a spring is arranged on the unlocking rod, a pressing plate is connected to the top of the unlocking rod, and the top of the spring is arranged at the bottom of the pressing plate.

[0015] As a preferred solution of the speed calibrator described in the utility model, wherein: the operating component includes a body, a control component is arranged on the surface of the body, handles are symmetrically arranged on both sides of the body, a power socket is arranged on one side of the body, a communication interface is arranged on one side of the power socket, a junction box is arranged on the other side of the body, and a detection component is arranged on the top of the body, and the detection component is arranged on the sleeve.

[0016] As a preferred solution of the speed calibrator of the utility model, the control part includes a warning light arranged on the surface of the body, a frequency converter is arranged at the bottom of the warning light, a touch screen is arranged at one side of the frequency converter, a potentiometer is arranged at the bottom of the touch screen, a control button is arranged at one side of the potentiometer, a switching handle is arranged at one side of the control button, and an emergency stop button is arranged at one side of the switching handle;

[0017] The prompt light array is set.

[0018] As a preferred solution of the speed calibrator of the utility model, the detection member includes a protective cover arranged on the top of the body, a mounting hole is provided on the top of the protective cover, a reference speed sensor is provided in the mounting hole, a fixing frame is provided on the protective cover, and a first fixing ring is provided at the center of the fixing frame;

[0019] The mounting holes are arranged in a circular array with respect to the protective cover.

[0020] As a preferred solution of the rotation speed calibrator of the utility model, wherein: the detection component also includes a toothed disc, a connecting frame is arranged on the toothed disc, and a second fixing ring is opened at the center position of the connecting frame.

[0021] The beneficial effects of the utility model are as follows: through the cooperation between the limit piece and the unlocking piece, it is convenient for the staff to adjust the height according to the models of different gears, so that the distance between the sensor and the gear is fixed at a fixed height, so that under high-speed rotation, the sensor can also smoothly receive the signal of gear rotation, thereby ensuring the accuracy of the simulation test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0023] Figure 1 A schematic diagram of the overall structure of an adjustment mechanism and a speed calibrator according to an embodiment of the utility model;

[0024] Figure 2 A schematic diagram of the overall structure of a rotation speed calibrator according to an embodiment of the present invention;

[0025] Figure 3 A partial exploded schematic diagram of a rotation speed calibrator according to an embodiment of the utility model;

[0026] Figure 4 A schematic diagram of the partial structure of an adjustment mechanism and a speed calibrator according to an embodiment of the utility model;

[0027] Figure 5 The present invention is a schematic diagram of the overall structure of an adjusting mechanism according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0031] Secondly, the "one embodiment" or "embodiment" referred to herein refers to a specific feature, structure or characteristic that can be included in at least one implementation of the utility model. The "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Example 1

[0033] Reference Figure 4 and 5 , which is the first embodiment of the utility model, and this embodiment provides an adjustment mechanism.

[0034] The adjustment mechanism includes a lifting assembly 100 .

[0035] Specifically, the lifting assembly 100 includes a sleeve 101 and a rotating shaft 102 located inside the sleeve 101. A cavity is arranged at the top of the rotating shaft 102. The arrangement of the cavity facilitates the arrangement and installation of a limit member 103 and an unlocking member 104. The limit member 103 located on the rotating shaft 102 and the arrangement of the limit member 103 can effectively limit and clamp the adjusted sleeve 101 to prevent the sleeve 101 from moving up and down when it rotates horizontally. The unlocking member 104 located at the top of the rotating shaft 102 and the motor 105 located at the bottom of the rotating shaft 102 can adjust the limit member 103 when the position of the sleeve 101 needs to be adjusted through the arrangement of the unlocking member 104, so that the limit member 103 on the rotating shaft 102 unlocks the sleeve 101, which facilitates the sleeve 101 to be adjusted up and down according to actual conditions. It can be adapted to different types of gear rings to simulate and verify the speed of hydro-turbine generator sets with different speeds.

[0036] Preferably, limiting grooves 101a are symmetrically provided inside the sleeve 101, and the limiting grooves 101a are arranged in a longitudinal array with respect to the inside of the sleeve 101. A first inclined surface 101a-1 is provided on one side of the limiting grooves 101a. Through the setting of the limiting grooves 101a, the limiting member 103 on the rotating shaft 102 is facilitated to contact with the sleeve 101, thereby achieving the locking of the sleeve 101.

[0037] Furthermore, the limiting member 103 includes a placement groove 103a symmetrically opened on the rotating shaft 102. By opening the placement groove 103a, it is convenient to place the limiting member 103 on the rotating shaft 102. A connecting block 103b is movably installed inside the placement groove 103a. A limiting block 103c is arranged on one side of the connecting block 103b. Through the setting of the limiting block 103c, it is convenient to insert it into the limiting groove 101a opened on the inner wall of the sleeve 101 to achieve the limiting and fixing effect of the sleeve 101. A rotating rod 103d is embedded and installed on the connecting block 103b. Through the setting of the rotating rod 103d, the connecting block 103b is hinged with the rotating shaft 102, which is convenient for limiting the connecting block 103b, so that the connecting block 103b can be movably installed in the placement groove 103a. In order to facilitate the angle adjustment according to the needs of the sleeve 101, an elastic rubber rod 103e is arranged on the other side of the connecting block 103b, and one end of the elastic rubber rod 103e is connected to the inside of the rotating shaft 102. The setting of the elastic rubber rod 103e provides a rebound force for the connecting block 103b. When there is no squeezing force on the top of the connecting block 103b, the elastic rubber rod 103e restores the elastic force, driving the top connecting block 103b to rebound upward, so that the raised limit block 103c at the other end of the connecting block 103b moves downward and engages with the limit groove 101a provided on the inner wall of the sleeve 101, thereby achieving the locking effect of the sleeve 101, avoiding the phenomenon of the sleeve 101 sliding up and down when rotating horizontally, and ensuring that the sensor senses the rotation speed of the gear ring;

[0038] It is worth noting that a second inclined surface 103c-1 is provided on one side of the limit block 103c, and the limit block 103c is engaged with the limit groove 101a. The first inclined surface 101a-1 and the second inclined surface 103c-1 are movably fitted together, so that the limit block 103c can contact the limit groove 101a more smoothly, thereby ensuring the locking effect of the sleeve 101.

[0039] Furthermore, the unlocking member 104 includes an unlocking rod 104a disposed on the rotating shaft 102, a spring 104b is disposed on the unlocking rod 104a, a pressing plate 104c is connected to the top of the unlocking rod 104a, and a top of the spring 104b is disposed at the bottom of the pressing plate 104c.

[0040] When in use, when the staff presses the pressing plate 104c downward, the spring 104b at the bottom of the pressing plate 104c is squeezed, and at the same time, the unlocking rod 104a at the bottom of the pressing plate 104c is driven to move downward, so that the bottom of the unlocking rod 104c contacts the connecting block 103b, and drives one end of the connecting block 103b to move downward, and then under the action of the rotating rod 103d, the other end of the connecting block 103b is tilted upward, driving the limiting block 103c at the other end of the connecting block 103d to tilt upward, so that the limiting block 103c is disengaged from the limiting groove 101a inside the sleeve 101, so that the staff can pull the sleeve 101 to move upward. Adjustment of the lower position. After adjusting the position of the sleeve 101, release the pressing plate 104c. Under the action of the spring 104b, the pressing plate 104c and the unlocking rod 104a move upward, and then contact the extrusion of one end of the connecting block 103b, so that the connecting block 103b returns to its original position under the action of the elastic rubber rod 103e, so that one end of the connecting block 103b and the limit block 103c move downward, so that the limit block 103c can be smoothly inserted into the limit groove 101a inside the sleeve 101, thereby achieving the limit locking effect of the sleeve 101 and preventing the sleeve 101 from sliding up and down during the subsequent horizontal rotation.

[0041] Example 2

[0042] Reference Figure 1-3 , which is the second embodiment of the utility model, is based on the previous embodiment, and is different from the previous embodiment in that: this embodiment provides a rotation speed calibrator.

[0043] The rotation speed calibrator includes an operating assembly 200 .

[0044] Specifically, the operating component 200 includes a body 201, and a control component 202 is arranged on the surface of the body 201. The setting of the control component 202 facilitates the staff to better set the rotation speed and time, etc., and handles 203 are symmetrically arranged on both sides of the body 201. The setting of the handles 203 facilitates the staff to better carry the body 201, and a power socket 204 is arranged on one side of the body 201, and a communication interface 205 is arranged on one side of the power socket 204. Through the setting of the power socket 204 and the communication interface 205, it is convenient to provide power to the body 201, and a junction box 206 is arranged on the other side of the body 201. A detection component 207 is arranged on the top of the body 201, and the detection component 207 is arranged on the sleeve 101. Through the setting of the detection component 207, it is convenient to simulate the rotation speed requirement of the experimental hydro-turbine generator set.

[0045] Preferably, the control unit 202 includes a warning light 202a arranged on the surface of the body 201, and the warning light 202a is arranged in an array. The setting of the warning light 202a facilitates the detection personnel to be informed of the operating status of the device. A frequency converter 202b is arranged at the bottom of the warning light 202a. The setting of the frequency converter 202b can accurately control the running speed of the motor to meet different process requirements. A touch screen 202c is arranged on one side of the frequency converter 202b. The setting of the touch screen 202c facilitates the staff to better operate the frequency converter. The running speed of 202b is controlled by a potentiometer 202d at the bottom of the touch screen 202c. The test signal can be precisely adjusted by setting the potentiometer 202d. A control button 202e is provided on one side of the potentiometer 202d. A switching handle 202f is provided on one side of the control button 202e. An emergency stop button 202g is provided on one side of the switching handle 202f. The combination of the control button 202e, the switching handle 202f and the emergency stop button 202g facilitates the staff to make corresponding adjustments according to different experimental situations.

[0046] Example 3

[0047] Reference Figure 1-5 , which is the third embodiment of the utility model. This embodiment provides an adjustment mechanism and a speed calibrator. Combined with the embodiment, it is easy to understand the working principle of the second embodiment:

[0048] Specifically, the detection member 207 includes a protective cover 207a arranged on the top of the body 201. The setting of the protective cover 207a facilitates the accidental injury of the staff by the toothed disc 207e under high-speed operation, thereby ensuring the safety of the simulation experiment. A mounting hole 207b is provided on the top of the protective cover 207a. The mounting holes 207b are arranged in a ring array with respect to the protective cover 207a. The opening of the mounting holes 207b facilitates the installation of the speed sensor. A reference speed sensor 207c is provided in the mounting hole 207b. The setting of the reference speed sensor 207c can effectively provide a reference experimental data for the speed of the toothed disc 207e. A fixing frame 207d is provided on the protective cover 207a. A first fixing ring 207d-1 is provided at the center of the fixing frame 207d. The cooperation between the fixing frame 207d and the first fixing ring 207d-1 facilitates the limiting of the sleeve 101.

[0049] Preferably, the detection member 207 also includes a toothed disc 207e. The setting of the toothed disc 207e facilitates the simulation of the rotational speed of a high-speed hydro-turbine generator set. A connecting frame 207e-1 is provided on the toothed disc 207e. A second fixing ring 207e-2 is provided at the center of the connecting frame 207e-1. The setting of the connecting frame 207e-1 and the second fixing ring 207e-2 effectively provides a position for the installation of the sleeve 101. The bottom of the sleeve 101 is provided on the connecting frame 207e-1. A rotating shaft 102 is provided in the second fixing ring 207e-2, so that the rotating shaft 102 can be driven to rotate coaxially when the motor 105 rotates. The rotating shaft 102 drives the sleeve 101 to rotate in the horizontal direction through the limit member 103, thereby driving the connecting frame 207e-1 at the bottom of the sleeve 101 to rotate. Under the rotation of the connecting frame 207e-1, the toothed disc 207e rotates synchronously, thereby realizing a rotational speed simulation experiment.

[0050] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0051] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0052] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, without undue experimentation, the development effort will be a routine task of design, fabrication, and production.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An adjustment mechanism, characterized in that: include, A lifting assembly (100) comprises a sleeve (101), a rotating shaft (102) located inside the sleeve (101), a limiting member (103) located on the rotating shaft (102), an unlocking member (104) located at the top of the rotating shaft (102), and a motor (105) located at the bottom of the rotating shaft (102).

2. The adjustment mechanism according to claim 1, characterized in that: The sleeve (101) has symmetrically disposed limit grooves (101a) inside, the limit grooves (101a) are arranged in a longitudinal array with respect to the inside of the sleeve (101), and a first inclined surface (101a-1) is provided on one side of the limit grooves (101a).

3. The adjustment mechanism according to claim 2, characterized in that: The limiting member (103) comprises a placement groove (103a) symmetrically arranged on the rotating shaft (102); a connecting block (103b) is movably installed inside the placement groove (103a); a limiting block (103c) is arranged on one side of the connecting block (103b); a rotating rod (103d) is embedded and installed on the connecting block (103b); and an elastic rubber rod (103e) is arranged on the other side of the connecting block (103b); The connection block (103b) and the rotating shaft (102) are hinged; One end of the elastic rubber rod (103e) is connected to the inside of the rotating shaft (102).

4. The adjustment mechanism according to claim 3, characterized in that: A second inclined surface (103c-1) is provided on one side of the limiting block (103c).

5. The adjustment mechanism according to claim 4, characterized in that: The limiting block (103c) is snap-fitted to the limiting groove (101a), and the first inclined surface (101a-1) and the second inclined surface (103c-1) are movably fitted together.

6. The adjustment mechanism according to claim 2, characterized in that: The unlocking member (104) comprises an unlocking rod (104a) arranged on the rotating shaft (102), a spring (104b) is arranged on the unlocking rod (104a), the top of the unlocking rod (104a) is connected to a pressing plate (104c), and the top of the spring (104b) is arranged at the bottom of the pressing plate (104c).

7. A speed calibrator, characterized in that: comprising an adjustment mechanism as claimed in any one of claims 1 to 6; and An operating assembly (200) comprises a body (201), a control component (202) being arranged on the surface of the body (201), handles (203) being symmetrically arranged on both sides of the body (201), a power socket (204) being arranged on one side of the body (201), a communication interface (205) being arranged on one side of the power socket (204), a junction box (206) being arranged on the other side of the body (201), and a detection component (207) being arranged on the top of the body (201), and the detection component (207) being arranged on the sleeve (101).

8. The speed calibrator according to claim 7, characterized in that: The control component (202) comprises a warning light (202a) arranged on the surface of the machine body (201); a frequency converter (202b) is arranged at the bottom of the warning light (202a); a touch screen (202c) is arranged at one side of the frequency converter (202b); a potentiometer (202d) is arranged at the bottom of the touch screen (202c); a control button (202e) is arranged at one side of the potentiometer (202d); a switching handle (202f) is arranged at one side of the control button (202e); and an emergency stop button (202g) is arranged at one side of the switching handle (202f); The warning lights (202a) are arranged in an array.

9. The speed calibrator according to claim 7, characterized in that: The detection member (207) comprises a protective cover (207a) arranged on the top of the machine body (201); a mounting hole (207b) is provided on the top of the protective cover (207a); a reference speed sensor (207c) is provided in the mounting hole (207b); a fixing frame (207d) is provided on the protective cover (207a); and a first fixing ring (207d-1) is provided at the center of the fixing frame (207d); The mounting holes (207b) are arranged in a circular array with respect to the protective cover (207a).

10. The speed calibrator according to claim 9, characterized in that: The detection member (207) further comprises a toothed disc (207e), a connecting frame (207e-1) is arranged on the toothed disc (207e), and a second fixing ring (207e-2) is provided at the center position of the connecting frame (207e-1).

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