CN218240073U

CN218240073U - Adjustable fixing device of large-scale hydroelectric set speed probe

Info

Publication number: CN218240073U
Application number: CN202121823402.3U
Authority: CN
Inventors: 施纲国; 凌才元
Original assignee: Jiangxi Dongjin Power Generation Co ltd
Current assignee: Jiangxi Dongjin Power Generation Co ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2023-01-06
Anticipated expiration: 2031-08-05

Abstract

The utility model discloses an adjustable fixing device of large-scale hydroelectric set speed probe belongs to hydraulic generator technical field that tests the speed. The utility model provides an adjustable fixing device of large-scale hydroelectric set speed probe, includes first L template and second L template, still includes: the second L-shaped plate is connected in the first sliding groove in a sliding manner; the second driving part is arranged on the first L-shaped plate; a second chute arranged on the second L-shaped plate; the utility model discloses a make the mounting panel slide from top to bottom on second L template and make second L template slide on first L template to control speed probe transform position, and then make speed probe remove the best check point, and then avoid appearing the unsatisfied requirement of distance between speed probe and fluted disc, avoid appearing the probe and broken or lose the problem of tooth.

Description

Adjustable fixing device of large-scale hydroelectric set speed probe

Technical Field

The utility model relates to a hydraulic generator technical field that tests the speed especially relates to an adjustable fixing device of large-scale hydroelectric set speed probe.

Background

The method is characterized in that the rotating speed of the water turbine is measured, namely the speed measurement of the water turbine, wherein two speed measurement modes are provided, one mode adopts a rotating fluted disc for measuring the speed, namely the fluted disc for measuring the speed, and the fluted disc for measuring the speed is also called mechanical speed measurement because the fluted disc for measuring the speed is mechanical speed measurement; the other is to collect the PT residual voltage at the outlet of the generator to calculate the speed, which is called residual voltage speed measurement, and the speed measurement is also called electrical speed measurement because the speed measurement is a pure electrical speed measurement.

The chi dish is tested the speed and is utilized the rotational speed of speed probe measurement fluted disc, and speed probe generally installs on the flyer base through fixing device, but current fixing device simple structure, and the flexibility is not enough, consequently often because the unsatisfied requirement of distance between speed probe and fluted disc, leads to the probe to be broken, lose tooth scheduling problem to arouse to test the speed unusually, so need design the adjustable fixing device of large-scale hydroelectric set speed probe.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of insufficient flexibility of the fixing device in the prior art, and providing an adjustable fixing device for a speed measuring probe of a large-scale hydroelectric generating set.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an adjustable fixing device of large-scale hydroelectric set speed probe, includes first L template and second L template, still includes: the second L-shaped plate is connected in the first sliding groove in a sliding manner; the second driving part is arranged on the first L-shaped plate; a second chute arranged on the second L-shaped plate, wherein the second chute is connected with a mounting plate in a sliding manner, and the mounting plate is provided with a second bolt hole; a notch is formed in the second L-shaped plate; and the first driving part is arranged at the top of the second L-shaped plate.

For the convenience of the mounting plate sliding, preferably, the first driving portion comprises a first lead screw, the first lead screw is rotatably connected in the second sliding groove, the mounting plate is in threaded connection with the first lead screw, a first connecting plate is fixedly connected to the second L-shaped plate, a first motor is fixedly connected to the first connecting plate, and an output shaft of the first motor is synchronously connected with the first lead screw through a belt wheel transmission set.

For the convenience of the second L-shaped plate sliding, preferably, the second driving part comprises a second motor and a second connecting plate, the second connecting plate is fixedly connected to the first L-shaped plate, the second motor is fixedly connected to the second connecting plate, the output end of the second motor is fixedly connected with a second lead screw, the bottom of the second L-shaped plate is fixedly connected with a connecting block, and the connecting block is in threaded connection with the second lead screw.

In order to improve the stability of the first L-shaped plate, preferably, a first reinforcing rib is fixedly connected to the first L-shaped plate.

In order to improve the stability between the mounting panel and the second L-shaped plate, preferably, the bottom of the mounting panel is fixedly connected with a second reinforcing rib, and the vertical plane of the second reinforcing rib is attached to the vertical plane of the second L-shaped plate.

In order to facilitate installation of the device, preferably, the vertical plate of the first L-shaped plate is provided with a plurality of groups of first bolt holes, and the plurality of groups of first bolt holes are uniformly distributed on the first L-shaped plate.

Compared with the prior art, the utility model provides an adjustable fixing device of large-scale hydroelectric set speed probe possesses following beneficial effect:

1. this adjustable fixing device of large-scale hydroelectric set speed probe slides on first L template through making second L template to control speed probe transform position, thereby adjust the distance between speed probe and the fluted disc, solve because of the unsatisfied requirement of distance between speed probe and the fluted disc, lead to appearing the problem that the probe is broken or loses the tooth.

2. This adjustable fixing device of large-scale hydroelectric set speed measuring probe slides from top to bottom on second L template through making the mounting panel, and then makes the speed measuring probe remove, and then is convenient for control the height of speed measuring probe, and the speed measuring probe of being convenient for removes the best point that tests the speed, improves the precision of testing the speed.

3. This adjustable fixing device of large-scale hydroelectric set speed probe moves through screw thread control mounting panel and second L template to the distance of accurate control speed probe position transform, and then the more accurate position of adjusting the speed probe of being convenient for.

The device in all be the same with prior art or can adopt prior art to realize, the utility model discloses an it slides and makes second L template slide on first L template to make the mounting panel slide from top to bottom on second L template to control speed probe transposition position, and then make the speed probe remove the optimal detection point, and then avoid appearing the unsatisfied requirement of distance between speed probe and fluted disc, avoid appearing the probe and be broken or lose the problem of tooth.

Drawings

Fig. 1 is a schematic structural view of an adjustable fixing device for a speed measuring probe of a large-scale hydroelectric generating set provided by the utility model;

fig. 2 is the utility model provides an adjustable fixing device of speed probe of large-scale hydroelectric set figure 1's explosion structure schematic diagram.

In the figure: 1. a first L-shaped plate; 101. a first bolt hole; 102. a first chute; 103. a first reinforcing rib; 2. a second L-shaped plate; 201. a second chute; 2011. a first lead screw; 202. a pulley transmission set; 203. a first connecting plate; 204. a first motor; 205. a notch; 206. connecting blocks; 3. mounting a plate; 301. a second bolt hole; 302. a second reinforcing rib; 4. a second motor; 401. a second lead screw; 402. a second connecting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example (b): referring to FIGS. 1-2: the utility model provides an adjustable fixing device of large-scale hydroelectric set speed probe, includes first L template 1 and second L template 2, still includes: a first chute 102 arranged on the transverse plate of the first L-shaped plate 1, and a second L-shaped plate 2 is connected in the first chute 102 in a sliding manner; the second driving part is arranged on the first L-shaped plate 1; a second chute 201 is formed in the second L-shaped plate 2, the second chute 201 is connected with a mounting plate 3 in a sliding mode, and a second bolt hole 301 is formed in the mounting plate 3; a notch 205 is formed on the second L-shaped plate 2; and the first driving part is arranged at the top of the second L-shaped plate 2.

Fix the speed probe on mounting panel 3 through utilizing bolt and the cooperation of second bolt hole 301, the observation end of speed probe is towards notch 205, observe the rotational speed of fluted disc through notch 205, thereby measure the speed to hydroelectric set, when the distance grow between speed probe and the fluted disc or when diminishing makes, make second L template 2 slide on first L template 1 through making the second drive division, second L template 2 makes speed probe transform position, thereby adjust the distance between speed probe and the fluted disc, avoid the distance between speed probe and fluted disc unsatisfied requirement, thereby avoid appearing the probe and being broken or lose the tooth scheduling problem, make mounting panel 3 slide from top to bottom on second L template 2 through first drive division, and then make the speed probe remove, and then be convenient for control the height of speed probe, the speed probe of being convenient for removes the best point of testing the speed, improve the accuracy of testing the speed.

Referring to fig. 1-2, the first driving portion includes a first lead screw 2011, the first lead screw 2011 is rotatably connected in the second chute 201, the mounting plate 3 is in threaded connection with the first lead screw 2011, the first connecting plate 203 is fixedly connected to the second L-shaped plate 2, the first motor 204 is fixedly connected to the first connecting plate 203, the output shaft of the first motor 204 is synchronously connected to the first lead screw 2011 through the pulley transmission group 202, the second driving portion includes a second motor 4 and a second connecting plate 402, the second connecting plate 402 is fixedly connected to the first L-shaped plate 1, the second motor 4 is fixedly connected to the second connecting plate 402, the output end of the second motor 4 is fixedly connected to the second lead screw 401, the bottom of the second L-shaped plate 2 is fixedly connected to the connecting block 206, and the connecting block 206 is in threaded connection with the second lead screw 401.

Start first motor 204, first motor 204 makes two sets of first lead screws 2011 rotate through pulley drive group 202, two sets of first lead screws 2011 make mounting panel 3 rise or descend, start second motor 4, second motor 4 makes second lead screw 401 rotate, second lead screw 401 makes second L template 2 slide on first L template 1 through connecting block 206, the device removes through screw control mounting panel 3 and second L template 2, thereby the distance of accurate control speed measuring probe position transform, and then the more accurate position of adjusting the speed measuring probe of being convenient for.

Referring to fig. 1-2, a first reinforcing rib 103 is fixedly connected to the first L-shaped plate 1, a second reinforcing rib 302 is fixedly connected to the bottom of the mounting plate 3, and the vertical plane of the second reinforcing rib 302 is attached to the vertical plane of the second L-shaped plate 2.

Provide the holding power through first strengthening rib 103 for the riser and the diaphragm of first L template 1 to avoid first L template 1 to take place deformation along with the lapse of time, thereby prolong the life of first L template 1, when mounting panel 3 reciprocated, second strengthening rib 302 slided along the riser surface of second L template 2, for mounting panel 3 with provide the holding power, and then stability when improving mounting panel 3 and removing and the life of extension second L template 2.

Referring to fig. 1-2, a vertical plate of the first L-shaped plate 1 is provided with a plurality of first bolt holes 101, and the first bolt holes 101 are uniformly distributed on the first L-shaped plate 1.

Fix first L template 1 on the flyer base through bolt and first bolt hole 101 to be convenient for carry out the dismouting to the device, and through being equipped with the first bolt hole 101 of multiunit, and make first bolt hole 101 become two rows and evenly distributed on the riser of first L template 1, thereby improve this fixing device's stability, and then improve the stability of the probe that tests the speed.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an adjustable fixing device of large-scale hydroelectric set speed probe, includes first L template (1) and second L template (2), its characterized in that still includes:

the first sliding groove (102) is formed in a transverse plate of the first L-shaped plate (1), and the second L-shaped plate (2) is connected in the first sliding groove (102) in a sliding mode;

the second driving part is arranged on the first L-shaped plate (1);

a second sliding chute (201) arranged on the second L-shaped plate (2), wherein the second sliding chute (201) is connected with a mounting plate (3) in a sliding manner, and a second bolt hole (301) is formed in the mounting plate (3);

a notch (205) is formed in the second L-shaped plate (2);

and the first driving part is arranged at the top of the second L-shaped plate (2).

2. The adjustable fixing device of the speed measuring probe of the large hydroelectric generating set according to claim 1, wherein the first driving portion comprises a first screw rod (2011), the first screw rod (2011) is rotatably connected in the second sliding groove (201), the mounting plate (3) is in threaded connection with the first screw rod (2011), the second L-shaped plate (2) is fixedly connected with a first connecting plate (203), the first connecting plate (203) is fixedly connected with a first motor (204), and an output shaft of the first motor (204) is synchronously connected with the first screw rod (2011) through a belt pulley transmission set (202).

3. The adjustable fixing device for the speed measuring probe of the large hydroelectric generating set according to claim 1, wherein the second driving portion comprises a second motor (4) and a second connecting plate (402), the second connecting plate (402) is fixedly connected to the first L-shaped plate (1), the second motor (4) is fixedly connected to the second connecting plate (402), the output end of the second motor (4) is fixedly connected with a second lead screw (401), the bottom of the second L-shaped plate (2) is fixedly connected with a connecting block (206), and the connecting block (206) is in threaded connection with the second lead screw (401).

4. The adjustable fixing device for the speed measuring probe of the large hydroelectric generating set according to claim 1, wherein the first L-shaped plate (1) is fixedly connected with a first reinforcing rib (103).

5. The adjustable fixing device for the speed measuring probe of the large hydroelectric generating set according to claim 1, wherein a second reinforcing rib (302) is fixedly connected to the bottom of the mounting plate (3), and a vertical plane of the second reinforcing rib (302) is attached to a vertical plane of the second L-shaped plate (2).

6. The adjustable fixing device for the speed measuring probe of the large hydroelectric generating set according to claim 1, wherein a first bolt hole (101) is formed in a vertical plate of the first L-shaped plate (1), a plurality of groups of the first bolt holes (101) are formed, and the plurality of groups of the first bolt holes (101) are uniformly distributed on the first L-shaped plate (1).