Fluted disc speed measuring probe device with four-direction adjusting function
By designing a gear disc speed measuring probe device with four-way adjustment function, the height and level adjustment mechanism are used to achieve accurate adjustment of the distance between the probe and the gear disc, the problem of difficulty in accurately adjusting the probe distance in the prior art is solved, and the accuracy and stability of frequency measurement are improved.
Patent Information
- Application Number
- CN202421790070.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The existing gear disc speed measuring probe bracket cannot be adjusted in four directions, which makes it difficult to accurately adjust the distance between the probe and the gear disc, affecting the accuracy of frequency measurement, and when the unit is overhauled or the probe is damaged, it needs to be shut down and adjusted, which is time-consuming and labor-consuming.
A gear disc speed measuring probe device with four-way adjustment function is designed. By connecting the height adjustment mechanism and the horizontal adjustment mechanism respectively at both ends of the bent plate, the height adjustment mechanism adjusts the height of the horizontal adjustment mechanism, and the horizontal adjustment mechanism adjusts the horizontal distance of the speed measuring probe, so as to achieve accurate adjustment of the distance between the probe and the gear disc.
It realizes high-precision adjustment of the distance between the probe and the gear disc, simplifies operation, improves the accuracy and stability of frequency measurement, reduces the number of unit downtime adjustments, and saves time and manpower.
Smart Images
Figure CN222812854U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of frequency measurement auxiliary parts for hydroelectric generator sets and relates to a gear disc speed measuring probe device with a four-way adjustment function. Background Art
[0002] The frequency measurement of hydropower units generally adopts two forms: PT residual pressure frequency measurement and gear disc frequency measurement. The accuracy of frequency measurement is directly related to the dynamic regulation quality of the speed control system. The existing gear disc speed measurement probe bracket is installed next to the main shaft. There is a mounting hole on the bracket. The probe is inserted into the hole and fixed to the bracket through the front and rear nuts; the gear disc frequency measurement is achieved by installing the gear disc and the speed measurement probe on the main shaft of the turbine. The speed measurement probe is a magnetic induction switch. When the unit is running, it drives the gear disc to rotate. The convex teeth on the gear disc sweep across the speed measurement probe to generate a pulse signal. The unit frequency can be obtained by calculating the period of the pulse signal. The distance between the probe and the convex teeth is generally 3±0.5mm. If the distance is too small, the probe is easily damaged; if the distance is too large, it will cause pulse loss during frequency measurement and increase the frequency measurement error. Accurate adjustment of the installation distance is crucial for frequency measurement.
[0003] The existing problems are: the probe bracket cannot be moved and only serves as a supporting structure for the probe. When the distance between the probe and the convex tooth needs to be increased or decreased, the probe fixing nut must be adjusted to complete the task. When the unit is overhauled, the horizontal height may change after the gear disc is reinstalled, resulting in the probe not being able to face the convex tooth, and the bracket needs to be raised or remade. When the probe is damaged or the installation distance is too large, the machine must be shut down and reinstalled to adjust the distance, and the machine needs to be started again to observe and verify whether the installation distance is appropriate. If the distance is still too large, the machine needs to be shut down again for processing, which is very time-consuming and labor-intensive. Summary of the invention
[0004] The technical problem to be solved by the utility model is to provide a toothed disc speed measuring probe device with a four-way adjustment function, in which a height adjustment mechanism and a horizontal adjustment mechanism are respectively connected at both ends of a bent plate, and the height adjustment mechanism and the horizontal adjustment mechanism form an angle of 90°. The speed measuring probe is installed on the horizontal adjustment mechanism, the height adjustment mechanism adjusts the height of the horizontal adjustment mechanism, and the horizontal adjustment mechanism adjusts the horizontal distance of the speed measuring probe to be close to or away from the unit toothed disc, with high adjustment accuracy, good stability, and simple and convenient operation.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a toothed disc speed measuring probe device with a four-way adjustment function, which includes a base, a height adjustment mechanism, a bent plate and a horizontal adjustment mechanism; the shaft rod of the height adjustment mechanism is fixedly connected to the base, and the two ends of the bent plate are respectively connected to the vertical slider of the height adjustment mechanism and the fixed seat of the horizontal adjustment mechanism; the vertical slider and the fixed seat form an angle of 90°, and the height adjustment mechanism adjusts the height of the horizontal adjustment mechanism.
[0006] The height adjustment mechanism comprises shaft rods connected with the four corners of the flat plate, a vertical slider slidingly matched with the shaft rod, and a height screw rod passing through the flat plate and threadedly matched with the vertical slider.
[0007] The horizontal adjustment mechanism comprises a horizontal sliding block which is slidably matched with a fixing seat, and a horizontal screw rod passes through the fixing seat and is connected with the horizontal sliding block.
[0008] A sliding groove is arranged on the upper side of the fixing seat, a lug plate on the lower side of the horizontal sliding block is located in the sliding groove, and the horizontal screw rod is matched with the lug plate thread.
[0009] A speed measuring probe is arranged on the horizontal slider.
[0010] The main beneficial effects of the utility model are:
[0011] When the height adjustment mechanism adjusts the height of the horizontal adjustment mechanism, the speed measuring probe rises or falls accordingly. The operation is simple and the height adjustment accuracy is high.
[0012] When the horizontal screw of the horizontal adjustment mechanism pushes the horizontal slider to move horizontally, the speed measuring probe moves closer to or away from the gear plate of the unit. The horizontal adjustment has high precision and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0014] Figure 1 It is a structural schematic diagram of the utility model.
[0015] Figure 2 It is a structural schematic diagram of the horizontal sliding block of the utility model.
[0016] Figure 3 This is a state diagram used in the present utility model.
[0017] In the figure: base 1; height adjustment mechanism 2; plate 21; shaft 22; vertical slider 23; height screw 24; bending plate 3; horizontal adjustment mechanism 4; fixed seat 41; horizontal slider 42; horizontal screw 43; ear plate 44; speed measuring probe 5. DETAILED DESCRIPTION
[0018] like Figure 1~Figure 3In the invention, a toothed disc speed measuring probe device with a four-way adjustment function includes a base 1, a height adjustment mechanism 2, a bent plate 3 and a horizontal adjustment mechanism 4; the shaft 22 of the height adjustment mechanism 2 is fixedly connected to the base 1, and the two ends of the bent plate 3 are respectively connected to the vertical slider 23 of the height adjustment mechanism 2 and the fixing seat 41 of the horizontal adjustment mechanism 4; the vertical slider 23 and the fixing seat 41 are at an angle of 90°, and the height adjustment mechanism 2 adjusts the height of the horizontal adjustment mechanism 4. By connecting the height adjustment mechanism 2 and the horizontal adjustment mechanism 4 at both ends of the bent plate 3, and the height adjustment mechanism 2 and the horizontal adjustment mechanism 4 are at an angle of 90°, the speed measuring probe 5 is installed on the horizontal adjustment mechanism 4, the height adjustment mechanism 2 adjusts the height of the horizontal adjustment mechanism 4, and the horizontal adjustment mechanism 4 adjusts the horizontal distance of the speed measuring probe 5 to be close to or away from the unit toothed disc, with high adjustment accuracy, good stability, and simple and convenient operation.
[0019] In a preferred solution, the height adjustment mechanism 2 includes a shaft 22 connected to the four corners of the flat plate 21, a vertical slider 23 slidingly cooperates with the shaft 22, and a height screw 24 passes through the flat plate 21 and is threadedly cooperated with the vertical slider 23. When in use, the height screw 24 is rotated to drive the vertical slider 23 to slide along the shaft 22. When the vertical slider 23 slides, the bent plate 3 rises or falls accordingly, and the horizontal adjustment mechanism 4 connected to the bent plate 3 also rises or falls accordingly, and the height adjustment is convenient and simple.
[0020] Preferably, the bent plate 3 is a 90° right-angle bent plate.
[0021] Preferably, a locking screw is provided on the side of the vertical slider 23. When the vertical slider 23 reaches a set height, the locking screw is rotated to contact and lock with the height screw rod 24, so as to provide good stability.
[0022] In a preferred solution, the horizontal adjustment mechanism 4 includes a horizontal slider 42 that is slidably matched with a fixed seat 41, and a horizontal screw rod 43 passes through the fixed seat 41 and is connected to the horizontal slider 42. When in use, the horizontal slider 42 slides horizontally along the fixed seat 41.
[0023] In a preferred embodiment, a slide groove is provided on the upper side of the fixing seat 41, and an ear plate 44 on the lower side of the horizontal slide block 42 is located in the slide groove, and the horizontal screw rod 43 is threadedly engaged with the ear plate 44. When in use, the horizontal screw rod 43 is rotated to drive the horizontal slide block 42 to slide along the fixing seat 41.
[0024] Preferably, a locking screw is provided on the side of the horizontal slider 42 . When the horizontal slider 42 slides to a set position, the locking screw is rotated to contact and lock with the fixing seat 41 , so as to provide good stability.
[0025] In a preferred solution, a speed measuring probe 5 is provided on the horizontal slider 42. When in use, when the horizontal slider 42 moves, the speed measuring probe 5 moves closer to or away from the unit gear disc, and the distance between the speed measuring probe 5 and the unit gear disc is accurately controlled, so as to facilitate accurate speed measurement.
[0026] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The embodiments and features in the embodiments of the present application can be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.
Claims
1. A toothed disc speed measuring probe device with four-way adjustment function, characterized in that: It comprises a base (1), a height adjustment mechanism (2), a bent plate (3) and a horizontal adjustment mechanism (4); the shaft (22) of the height adjustment mechanism (2) is fixedly connected to the base (1), and the two ends of the bent plate (3) are respectively connected to a vertical slider (23) of the height adjustment mechanism (2) and a fixed seat (41) of the horizontal adjustment mechanism (4); the vertical slider (23) and the fixed seat (41) form an angle of 90°, and the height adjustment mechanism (2) adjusts the height of the horizontal adjustment mechanism (4).
2. The toothed disc speed measuring probe device with four-way adjustment function according to claim 1 is characterized in that: The height adjustment mechanism (2) comprises a shaft rod (22) connected to the four corners of the flat plate (21), a vertical slider (23) slidingly engaged with the shaft rod (22), and a height screw rod (24) passing through the flat plate (21) and threadedly engaged with the vertical slider (23).
3. The toothed disc speed measuring probe device with four-way adjustment function according to claim 1 is characterized in that: The horizontal adjustment mechanism (4) comprises a horizontal slider (42) slidably matched with a fixed seat (41), and a horizontal screw rod (43) passes through the fixed seat (41) and is connected to the horizontal slider (42).
4. The toothed disc speed measuring probe device with four-way adjustment function according to claim 3 is characterized in that: The upper side of the fixing seat (41) is provided with a slide groove, the ear plate (44) on the lower side of the horizontal sliding block (42) is located in the slide groove, and the horizontal screw rod (43) is threadedly matched with the ear plate (44).
5. The toothed disc speed measuring probe device with four-way adjustment function according to claim 3 is characterized in that: A speed measuring probe (5) is arranged on the horizontal sliding block (42).