CN211696918U

CN211696918U - Pressing device for brake of hydroelectric generating set

Info

Publication number: CN211696918U
Application number: CN202020592720.2U
Authority: CN
Inventors: 赵永辉; 马明; 谢湘军; 成传诗; 林晓明
Original assignee: China Yangtze Power Co Ltd
Current assignee: China Yangtze Power Co Ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-10-16
Anticipated expiration: 2030-04-20

Abstract

The utility model provides a hydroelectric set stopper suppression device, includes bearing frame, stopper translation device and pneumatic pressure testing pump, and the bearing frame includes the framework, and the framework lower part is equipped with a supporting bench, has seted up a plurality of through holes on the supporting bench, has placed the rolling element in the through hole, and the rolling element bottom is equipped with rolling element elevating gear, and rolling element elevating gear is used for adjusting the height of rolling element. The utility model discloses reduce the injured risk of operation personnel, alleviate intensity of labour, improve work efficiency.

Description

Pressing device for brake of hydroelectric generating set

Technical Field

The utility model belongs to the technical field of hydroelectric set stopper is suppressed, in particular to hydroelectric set stopper is suppressed device.

Background

During hydroelectric set stopper overhauls, need carry out withstand voltage test to the stopper of overhauing the completion, test pressure generally more than 20Mpa, test pressure is very high, need place the stopper inside pressure-bearing device during the suppress, prevents that the high pressure from damaging the stopper. The weight of the brake is about 300kg, the brake cannot be directly hung into the pressure-bearing device due to the structure of the pressure-bearing device, and the brake needs to be placed in the pressure-bearing device manually. The method adopted in the previous maintenance process is that the brake is lifted by a lifting device and suspended, the brake is pushed into the pressure-bearing device manually, and the brake can be moved out manually only when taken out. The operation mode has three disadvantages, firstly, the operation risk is large, and the operation is easy to cause heavy object smashing injury when the brake is suspended; secondly, the labor intensity is high, the weight of the brake is large, and the manual placing and removing of the brake are very laborious; thirdly, the operation efficiency is low, and hoisting equipment resources and human resources need to be occupied for a long time.

Chinese patent document CN205656002U discloses a "hydraulic generator brake on-site limiting pressure-bearing device", which provides a pressurizing device, and has the problems that: as shown in fig. 6, when the brake enters the pressure-receiving frame, the brake still depends on the sliding friction, and the friction resistance is large, so that the operation difficulty is increased, and the efficiency is lowered. In addition, the brake translation device adopts a roller design, and the bearing capacity is not strong.

In view of the problem that the mode exists is suppressed to the stopper in the past, need design one set of frock and be applicable to stopper withstand voltage test, reduce the injured risk of operation personnel, alleviate intensity of labour, improve work efficiency.

Disclosure of Invention

In view of the technical problem that the background art exists, the utility model provides a hydroelectric set stopper is suppressed device reduces the injured risk of operation personnel, alleviates intensity of labour, improves work efficiency.

In order to solve the technical problem, the utility model discloses following technical scheme has been taken and has been realized:

the utility model provides a hydroelectric set stopper suppression device, includes bearing frame, stopper translation device and pneumatic pressure testing pump, and the bearing frame includes the framework, and the framework lower part is equipped with a supporting bench, has seted up a plurality of through holes on the supporting bench, has placed the rolling element in the through hole, and the rolling element bottom is equipped with rolling element elevating gear, and rolling element elevating gear is used for adjusting the height of rolling element.

In a preferable scheme, the rolling body lifting device comprises a rotating shaft, a plurality of eccentric wheels are arranged on the rotating shaft and positioned at the bottom of the through hole, the eccentric wheels are used for driving the rolling body to move up and down, and a crank is arranged at one end of the rotating shaft.

In a preferred scheme, the rolling bodies are universal balls, and the universal balls are arranged on the support platform in two rows; the rotating shafts are arranged in parallel and fixed with the supporting table through bearing seats.

In a preferred scheme, the crank comprises a torsion bar and a holding bar, the torsion bar is arranged perpendicular to the rotating shaft, and the holding bar is arranged parallel to the rotating shaft; the torsion bar is provided with an arc section, and the distance between the circle center of the arc section and the axis of the rotating shaft is equal to the distance between the axes of the two rotating shafts.

In a preferred scheme, the brake translation device comprises a bedplate, wherein the bottom of the bedplate is provided with a lifting type ground foot, and the bedplate is provided with a plurality of universal balls; the platen is removably coupled to the support table.

In a preferred scheme, the bedplate is connected with the support table through bolts.

This patent can reach following beneficial effect:

1. compared with the prior art, the sliding friction force can be changed into rolling friction force, and the working difficulty is greatly reduced.

2. The risk in the operation is reduced, the operation efficiency can be greatly improved, and the labor intensity is reduced.

3. The brake translation device adopts the universal ball as a sliding support member, and compared with a rotating roller, the support strength is greatly enhanced.

Drawings

The invention will be further explained with reference to the following figures and examples:

FIG. 1 is a front view of the present invention;

FIG. 2 is a top view of the pressure-bearing frame and the brake translation device of the present invention;

FIG. 3 is a side view of the pressure-bearing frame and the brake translation device of the present invention;

FIG. 4 is a schematic view of the pressure-bearing frame of the present invention;

fig. 5 is a schematic structural view of the brake translation device of the present invention;

fig. 6 is a schematic structural diagram of a pressing device in the prior art.

In the figure: the device comprises a pressure bearing frame 1, a support table 101, a through hole 102, a rolling body 103, a rotating shaft 104, an eccentric wheel 105, a crank 106, an arc joint 106.1, a brake translation device 2, a bedplate 201, a lifting foot margin 202, a pneumatic pressure test pump 3 and a brake 4.

Detailed Description

As shown in fig. 1 to 5, a preferred embodiment of the brake pressurizing device for the hydroelectric generating set comprises a pressure bearing frame 1, a brake translation device 2 and a pneumatic pressure test pump 3, wherein the pressure bearing frame 1 comprises a frame body, a support table 101 is arranged at the lower part of the frame body, a plurality of through holes 102 are formed in the support table 101, rolling bodies 103 are placed in the through holes 102, a rolling body lifting device is arranged at the bottoms of the rolling bodies 103, and the rolling body lifting device is used for adjusting the heights of the rolling bodies 103.

The support platform 101 is used for supporting the brake 4, when the rolling body lifting device raises the height of the rolling body 103, the rolling body 103 supports the brake 4, the brake 4 is convenient to move, and when the rolling body lifting device lowers the height of the rolling body 103, the brake 4 can be stably placed on the support platform 101.

Furthermore, the rolling element lifting device comprises a rotating shaft 104, a plurality of eccentric wheels 105 are arranged on the rotating shaft 104, the eccentric wheels 105 are positioned at the bottom of the through hole 102, the eccentric wheels 105 are used for driving the rolling element 103 to move up and down, and a crank 106 is arranged at one end of the rotating shaft 104. The height of the rolling body 103 is adjusted by rotating the eccentric 105.

Furthermore, the rolling elements 103 are universal balls, and a plurality of universal balls are arranged on the support table 101 in two rows; the number of the rotating shafts 104 is two, the two rotating shafts 104 are arranged in parallel, and the rotating shafts 104 are fixed with the supporting table 101 through bearing seats. The common universal ball comprises a column body, a ball body is arranged at the top of the column body, the ball body can roll, and the column body is placed in the through hole 102 and can move up and down. The number of the universal balls on the supporting table 101 is 12, six universal balls are arranged in one row, and the universal balls are arranged in two rows. Each shaft 104 controls a row of gimbaled balls.

Further, the crank 106 includes a torsion bar disposed perpendicular to the rotating shaft 104 and a grip bar disposed parallel to the rotating shaft 104; the torsion bar is provided with an arc section 106.1, and the distance between the circle center of the arc section 106.1 and the axis of the rotating shaft 104 is equal to the distance between the axes of the two rotating shafts 104. As shown in fig. 2 and 3, the torsion bar has a long length, and in order to ensure that the crank handles 106 are placed relatively horizontally, a circular arc section 106.1 is provided, so that the two crank handles 106 can be placed horizontally when not in use. When the crank 106 needs to be rotated, two hands can be selected to hold the two cranks 106 at the same time, and the two cranks are lifted upwards and rotated with force, so that the rotation angles of the two cranks are consistent.

Further, as shown in fig. 2, the brake translation device 2 includes a bedplate 201, a lifting type ground foot 202 is provided at the bottom of the bedplate 201, and a plurality of universal balls are provided on the bedplate 201; the platen 201 is detachably connected to the support table 101. The number of the universal balls of the bedplate 201 is 12, and the 12 universal balls are arranged in two rows.

Further, the platen 201 is connected to the support table 101 by bolts. The brake translation device 2 and the pressure-bearing frame 1 adopt a detachable structure, and the assembly is convenient.

The working principle of the whole device is as follows:

during the use, with stopper 4 through stopper translation device 2 with the pressure-bearing frame 1 equipment an organic whole, stopper translation device 2 can be through adjusting over-and-under type lower margin 202 adjustment platen 201 height make it with pressure-bearing frame 1 highly unanimous, make things convenient for stopper 4 business turn over. The height of the universal ball is adjusted by operating the left crank 106 and the right crank 106, specifically:

the height of a universal ball on the supporting platform 101 of the pressure bearing frame 1 can be adjusted through the eccentric wheel 105, when the brake 4 goes in and out, the eccentric wheel 105 is ensured to be located at the highest point, the highest point of the universal ball is higher than the supporting plane of the supporting platform 101, the brake 4 can slide, the eccentric wheel 105 is located at the lowest point during a pressure-resistant test, and the highest point of the universal ball is lower than the supporting plane of the supporting platform 101.

Claims

1. The utility model provides a hydroelectric set stopper suppression device, includes bearing frame (1), stopper translation device (2) and pneumatic pressure testing pump (3), and bearing frame (1) includes the framework, and the framework lower part is equipped with brace table (101), its characterized in that: a plurality of through holes (102) are formed in the supporting platform (101), rolling bodies (103) are placed in the through holes (102), and rolling body lifting devices are arranged at the bottoms of the rolling bodies (103) and used for adjusting the heights of the rolling bodies (103).

2. The hydroelectric generating set brake pressing device according to claim 1, wherein: the rolling body lifting device comprises a rotating shaft (104), a plurality of eccentric wheels (105) are arranged on the rotating shaft (104), the eccentric wheels (105) are located at the bottom of the through hole (102), the eccentric wheels (105) are used for driving the rolling body (103) to move up and down, and a crank (106) is arranged at one end of the rotating shaft (104).

3. The hydroelectric generating set brake pressing device according to claim 2, wherein: the rolling bodies (103) are universal balls, and the universal balls are arranged on the support table (101) in two rows; the number of the rotating shafts (104) is two, the two rotating shafts (104) are arranged in parallel, and the rotating shafts (104) are fixed with the supporting table (101) through bearing seats.

4. The hydroelectric generating set brake pressing device according to claim 3, wherein: the crank (106) comprises a torsion bar and a holding bar, the torsion bar is arranged perpendicular to the rotating shaft (104), and the holding bar is arranged parallel to the rotating shaft (104); the torsion bar is provided with an arc section (106.1), and the distance between the circle center of the arc section (106.1) and the axis of the rotating shaft (104) is equal to the distance between the axes of the two rotating shafts (104).

5. The hydroelectric generating set brake pressing device according to claim 1, wherein: the brake translation device (2) comprises a bedplate (201), wherein the bottom of the bedplate (201) is provided with lifting type ground feet (202), and the bedplate (201) is provided with a plurality of universal balls; the platen (201) is detachably connected to the support table (101).

6. The hydroelectric generating set brake pressing device according to claim 5, wherein: the platen (201) is connected to the support table (101) by bolts.