CN216344054U

CN216344054U - Sealing and positioning structure at outer end of water outlet valve bearing of water conservancy project water pump

Info

Publication number: CN216344054U
Application number: CN202122964973.5U
Authority: CN
Inventors: 董雪旺; 董煜; 吕进朝; 叶建军; 张涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-04-19
Anticipated expiration: 2031-11-30

Abstract

The utility model provides a sealing and positioning structure of the outer end of a water outlet valve bearing of a water conservancy project water pump, which comprises: the valve body, the valve cover and the shaft seat; the valve cover is arranged at one end of the valve body and fixedly connected with the valve body through bolts; the shaft seat is arranged on the valve cover and fixedly connected with the valve cover through bolts; the upper valve shaft penetrates through the valve cover and the shaft seat and is fixedly connected with the valve core; the valve core is arranged in the valve body, and the shaft sleeve is embedded in the other end of the valve core; the lower valve shaft is arranged at the other end of the valve body through a bearing end cover; the sealing and positioning structure of the outer end of the water outlet valve bearing of the water conservancy project water pump has the advantages of being reasonable in structural design, improving the number of fixing bolts, enlarging the distribution range, improving the connection firmness and stability of the bearing end cover and the lower valve shaft, meeting the stress requirement and enabling the valve to operate normally, and therefore the problems and the defects in the existing device are effectively solved.

Description

Sealing and positioning structure at outer end of water outlet valve bearing of water conservancy project water pump

Technical Field

The utility model relates to the technical field of ball valves, in particular to a sealing and positioning structure for the outer end of a water outlet valve bearing of a water pump in hydraulic engineering.

Background

The ball valve has 1, the bottom is level: the smooth bottom of the flow channel has no deep groove, so that the space for sediment and garbage deposition is completely eradicated from the root, the failure rate of the valve is effectively reduced, and the service life of the valve is prolonged; 2. the full-bore runner: the orthographic projection area of the valve flow channel is consistent with that of the connected pipeline, the streamline layout is smooth in water flowing, the flow resistance is reduced by 10-30% compared with that of a traditional hemispherical valve, and the energy-saving and consumption-reducing effects are obvious; 3. bidirectional sealing: the positive and negative bidirectional sealing has zero leakage, and the technical problem that the reverse sealing effect of the traditional eccentric half ball valve is poor is solved; 4. maintenance of the shaft seal under pressure: and (5) replacing the shaft seal. The water supply device does not need to be stopped and stopped, and the normal water supply is not influenced. By adopting the eccentric crankshaft, the spherical crown can leave the valve seat when the valve is opened, so that the abrasion is reduced to the maximum extent; 5. floating rubber rings: the sealing rubber is embedded on the valve core, has a movement gap and can float in a certain range along with the fluctuation of medium pressure, the rubber deformation changes along with the pressure change, the ideal sealing specific pressure is automatically obtained, and the elastic failure of the rubber is avoided; 6. and (3) online maintenance: the valve body does not need to be detached from the pipeline, the internal parts such as the ball body, the valve shaft and the like do not need to be lifted out of the valve body, and the relative position of the auxiliary seal is not changed. The spherical crown and the valve seat can be maintained and replaced by detaching the bolt on the valve cover and opening the valve cover. Large-scale equipment is not required, the construction difficulty is low, and the purpose of online maintenance is achieved; 7. the valve body is made of good material, the valve shell is thick, the ball body is not abraded and damaged, and the service life is long; 8. the spherical crown and the valve seat (secondary seal) are made of different materials and have different hardness, so that the spherical crown and the valve seat are rust-proof and anti-occlusion and are more wear-resistant than rubber parts; 9. the eccentric half ball valve resists the silt and wears: after the ball valve is opened, the ball body and the spherical crown are cut in the valve body and are not abraded; 10. the ball valve is completely communicated with the pipeline after being opened, and the head loss is zero.

The rotation of the existing eccentric half-ball valve adopts an eccentric crankshaft, a valve core and a shaft sleeve are integrated, a copper sleeve is embedded in the shaft sleeve, a bearing shaft is connected with a bearing end cover by a positioning bolt, and the bearing end cover is connected by eight bolts.

Because the water quality of the yellow river has large sand content, accumulated sand precipitates in the bearing, the resistance is increased, the fixed positioning bolt is broken, the valve fails, the machine set is shut down and closed incompletely, and backflow water causes the machine set to reverse, so that potential safety hazards exist.

In view of this, research improvement is carried out to current problem, provides a hydraulic engineering water pump outlet valve bearing outer end's sealed location structure, aims at through this technique, reaches the purpose of solving the problem and improving practical value nature.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sealing and positioning structure for the outer end of a water outlet valve bearing of a water pump in hydraulic engineering, which aims to solve the problems and the defects in the background technology.

In order to achieve the purpose, the utility model provides a sealing and positioning structure for the outer end of a water outlet valve bearing of a water pump in hydraulic engineering, which is achieved by the following specific technical means:

the utility model provides a sealed location structure of hydraulic engineering water pump outlet valve bearing outer end, includes: the valve comprises a valve body, a valve cover, a shaft seat, an upper valve shaft, a valve core, a shaft sleeve, a bearing end cover, a lower valve shaft and a fixing bolt; the valve cover is arranged at one end of the valve body and fixedly connected with the valve body through bolts; the shaft seat is arranged on the valve cover and fixedly connected with the valve cover through bolts; the upper valve shaft penetrates through the valve cover and the shaft seat and is fixedly connected with the valve core; the valve core is arranged in the valve body, and the shaft sleeve is embedded in the other end of the valve core; the lower valve shaft is arranged at the other end of the valve body through a bearing end cover, and the bearing end cover is fixedly connected with the valve body through a bolt; the lower valve shaft is arranged on the inner wall of the bearing end cover and connected with the bearing end cover through a fixing bolt; the end part of the lower valve shaft is connected with the shaft sleeve in an inserting mode.

As a further optimization of the technical scheme, the bearing end cover of the sealing and positioning structure at the outer end of the water outlet valve bearing of the water conservancy project pump is connected with the lower valve shaft through four fixing bolts, and the fixing bolts are distributed on the outer side of the bearing end cover in an annular array shape.

As a further optimization of the technical scheme, the fixing bolt of the sealing and positioning structure at the outer end of the water outlet valve bearing of the water pump for the hydraulic engineering is a hexagon bolt.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

1. according to the utility model, the bearing end cover is connected with the lower valve shaft through four fixing bolts, the fixing bolts are distributed on the outer side of the bearing end cover in an annular array shape, and the fixing bolts are arranged by the hexagon bolts, so that the number of the fixing bolts is increased, the distribution range is enlarged, the connection firmness and stability are improved, the stress requirement is met, and the valve can normally operate.

2. The sealing and positioning structure of the outer end of the water outlet valve bearing of the water conservancy project water pump has the advantages of being reasonable in structural design, improving the number of fixing bolts, enlarging the distribution range, improving the connection firmness and stability of the bearing end cover and the lower valve shaft, meeting the stress requirement and enabling the valve to operate normally, and therefore the problems and the defects in the existing device are effectively solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic view of the structure of the bearing end cap of the present invention.

In the figure: the valve comprises a valve body 1, a valve cover 2, a shaft seat 3, an upper valve shaft 4, a valve core 5, a shaft sleeve 6, a bearing end cover 7, a lower valve shaft 8 and a fixing bolt 9.

Detailed Description

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

It is to be noted that, in the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model.

Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Meanwhile, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, for example, as being fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 2, the present invention provides a specific technical embodiment of a sealing and positioning structure for an outer end of a water outlet valve bearing of a hydraulic engineering water pump:

the utility model provides a sealed location structure of hydraulic engineering water pump outlet valve bearing outer end, includes: the valve comprises a valve body 1, a valve cover 2, a shaft seat 3, an upper valve shaft 4, a valve core 5, a shaft sleeve 6, a bearing end cover 7, a lower valve shaft 8 and a fixing bolt 9; the valve cover 2 is arranged at one end of the valve body 1, and the valve cover 2 is fixedly connected with the valve body 1 through bolts; the shaft seat 3 is arranged on the valve cover 2, and the shaft seat 3 is fixedly connected with the valve cover 2 through bolts; the upper valve shaft 4 penetrates through the valve cover 2 and the shaft seat 3 and is fixedly connected with the valve core 5; the valve core 5 is arranged in the valve body 1, and the shaft sleeve 6 is embedded in the other end of the valve core 5; the lower valve shaft 8 is arranged at the other end of the valve body 1 through a bearing end cover 7, and the bearing end cover 7 is fixedly connected with the valve body 1 through a bolt; the lower valve shaft 8 is arranged on the inner wall of the bearing end cover 7, and the lower valve shaft 8 is connected with the bearing end cover 7 through a fixing bolt 9; the end part of the lower valve shaft 8 is connected with the shaft sleeve 6 in an inserting way.

Specifically, as shown in fig. 2, the bearing end cover 7 is connected with the lower valve shaft 8 through four fixing bolts 9, and the fixing bolts 9 are distributed in an annular array shape on the outer side of the bearing end cover 7, so that the number of the fixing bolts 9 is increased, the distribution range is enlarged, the connection firmness and stability are improved, the stress requirement is met, and the valve is operated normally.

Specifically, as shown in fig. 2, the fixing bolt 9 is a hexagon bolt.

The method comprises the following specific implementation steps:

bearing end cover 7 and lower valve shaft 8 originally are connected through a fixing bolt 9, are difficult to satisfy the stress demand, are connected bearing end cover 7 and lower valve shaft 8 through four fixing bolt 9 earlier, improve fixing bolt 9's quantity, increase distribution range, improve firm in connection nature and stability, satisfy the stress demand, make the valve operation normal.

In summary, the following steps: according to the sealing and positioning structure for the outer end of the water outlet valve bearing of the water conservancy project water pump, the bearing end cover is connected with the lower valve shaft through the four fixing bolts, the fixing bolts are distributed on the outer side of the bearing end cover in an annular array shape, the fixing bolts are hexagonal bolts, the number of the fixing bolts is increased, the distribution range is enlarged, the connection firmness and stability are improved, the stress requirement is met, and the valve can normally operate; through the improvement to the sealed location structure of hydraulic engineering water pump outlet valve bearing outer end, it is reasonable to have a structural design, improves fixing bolt's quantity, increase distribution range, improves bearing end cover and lower valve shaft fastness to be connected and stability, satisfies the stress demand, makes the normal advantage of valve operation to the effectual problem and the not enough that appear in having solved current device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sealed location structure of hydraulic engineering water pump outlet valve bearing outer end, includes: the valve comprises a valve body (1), a valve cover (2), a shaft seat (3), an upper valve shaft (4), a valve core (5), a shaft sleeve (6), a bearing end cover (7), a lower valve shaft (8) and a fixing bolt (9); the method is characterized in that: the valve cover (2) is installed at one end of the valve body (1), and the valve cover (2) is fixedly connected with the valve body (1) through a bolt; the shaft seat (3) is arranged on the valve cover (2), and the shaft seat (3) is fixedly connected with the valve cover (2) through bolts; the upper valve shaft (4) penetrates through the valve cover (2) and the shaft seat (3) and is fixedly connected with the valve core (5); the valve core (5) is arranged in the valve body (1), and the shaft sleeve (6) is embedded in the other end of the valve core (5); the lower valve shaft (8) is installed at the other end of the valve body (1) through a bearing end cover (7), and the bearing end cover (7) is fixedly connected with the valve body (1) through a bolt; the lower valve shaft (8) is installed on the inner wall of the bearing end cover (7), and the lower valve shaft (8) is connected with the bearing end cover (7) through a fixing bolt (9); the end part of the lower valve shaft (8) is connected with the shaft sleeve (6) in an inserting way.

2. The sealing and positioning structure for the outer end of the water outlet valve bearing of the water conservancy project water pump according to claim 1, wherein: the bearing end cover (7) is connected with the lower valve shaft (8) through four fixing bolts (9), and the fixing bolts (9) are distributed on the outer side of the bearing end cover (7) in an annular array shape.

3. The sealing and positioning structure for the outer end of the water outlet valve bearing of the water conservancy project water pump according to claim 1, wherein: the fixing bolt (9) is a hexagon bolt.