CN214330964U - Double-thrust structure of submersible electric pump - Google Patents

Abstract

The utility model discloses a two thrust structures of submerged motor pump, including base and casing, the base passes through holding screw connection thrust block, and thrust block's top axial is equipped with thrust, thrust disc one, thrust disc seat, lower bearing chamber down in proper order, the bearing chamber cup joints on the rotor shaft down, and the upper end tang and the casing tang cooperation of lower bearing chamber, lower extreme tang and the cooperation of base tang pass through the bolt fastening, and the top of lower bearing chamber still is equipped with thrust and thrust disc two just go up the thrust and connect in the below of thrust disc two. The utility model discloses can bear bigger axial force, alleviate the axial force that the submerged motor received, prolong the life of charge pump, improve product quality.

Description

Double-thrust structure of submersible electric pump

Technical Field

The utility model belongs to the technical field of submerged motor pump, specifically be a submerged motor pump's double-thrust structure.

Background

The submersible electric pump is a water pump with a pump body impeller and a motor driving the impeller both submerged in water to work, the submersible pump is important equipment for pumping water from a deep well, and in the using process, the whole unit needs to be placed in water to work to pump underground water to the ground surface.

The submerged motor pump is at the during operation, the submerged motor is connected in the one end of large-scale submerged motor pump, the in-process submerged motor pump of submerged motor pump and submerged motor operation will produce very high axial force, act on the submerged motor, especially along with the increase of submerged motor unit capacity in recent years, the delivery lift of distributed water pump is more and more high, the bearing capacity who requires the motor is also more and more big, and the submerged motor bears great pressure, lead to submerged motor job instability easily, and the submerged motor pump operation is unreliable, the easy trouble that takes place influences the operation, delivery lift and flow and efficiency of submerged motor pump can not obtain full play.

SUMMERY OF THE UTILITY MODEL

For solving the technical insufficiency, the utility model provides a two thrust structures of submerged motor pump.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a double thrust structure of submerged motor pump, includes base and casing, and the base passes through holding screw connection thrust block, and thrust block's top axial is equipped with thrust, thrust disc one, thrust disc seat, lower bearing chamber down in proper order, lower bearing chamber cup joints on the rotor shaft, and the upper end tang and the casing tang cooperation of lower bearing chamber, the lower extreme tang and the base tang cooperation of lower bearing chamber pass through the bolt fastening, and the top of lower bearing chamber still is equipped with thrust and thrust disc two just go up the below of thrust disc two.

Preferably, the thrust disc seat is connected with a first thrust disc, the first thrust disc is connected with a lower thrust, and the lower thrust is located on the thrust seat.

Preferably, the diameter of the first thrust disc is consistent with that of the lower thrust, and the diameter of the second thrust disc is consistent with that of the upper thrust.

Preferably, the base is cylindrical in shape.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the double-thrust structure of the utility model disperses the strong axial force generated by the submersible electric pump to the motor, so that the motor can bear larger axial force, thereby prolonging the service life of the motor and the lift and flow of the water pump;

(2) the utility model discloses make submerged motor pump can soak the aquatic work for a long time, can bear the thrust downwards and the motor pivoted partial weight of water pump, improve the stability of motor work.

Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or technical solutions in related arts, the drawings used in the description of the embodiments or related arts will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is an overall view of a double thrust structure of a submersible electric pump according to the present invention;

in the figure: 1. the thrust device comprises a base, 2, a machine shell, 3, a set screw, 4, a thrust seat, 5, a lower thrust, 6, a first thrust disk, 7, a thrust disk seat, 8, a lower bearing chamber, 9, a rotor shaft, 10, an upper thrust, 11 and a second thrust disk.

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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms such as "above … …", "above … …", "above … …", "bottom", and the like, may be used herein for ease of description to describe the spatial relationship of one device or feature to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Referring to fig. 1, a double-thrust structure of a submersible electric pump comprises a base 1 and a casing 2, wherein the base 1 is connected with a thrust block 4 through a set screw 3, a lower thrust 5, a thrust disc I6, a thrust disc seat 7 and a lower bearing chamber 8 are axially and sequentially arranged above the thrust block 4, the lower bearing chamber 8 is sleeved on a rotor shaft 9, an upper end spigot of the lower bearing chamber 8 is matched with a spigot of the casing, a lower end spigot of the lower bearing chamber 8 is matched with a spigot of the base and fixed through a bolt, an upper thrust 10 and a second thrust disc 11 are further arranged above the lower bearing chamber 8, and the upper thrust 10 is connected below the second thrust disc 11.

Specifically, the thrust disc seat 7 is connected with a first thrust disc 6, the first thrust disc 6 is connected with a lower thrust 5, and the lower thrust 5 is located on the thrust seat 4.

Further, the diameter of the first thrust disk 6 is consistent with that of the lower thrust 5, and the diameter of the second thrust disk 11 is consistent with that of the upper thrust 10.

Further, the base 1 has a cylindrical shape.

The lower part of the motor is provided with a double-thrust structure, when the submersible motor is used, the pump body is driven by the motor to rotate, axial force generated by the pump body acts on the motor, the lower part of the motor is provided with an upper thrust disk 11 and a lower thrust disk 5 which can bear the upper and lower axial force of the water pump, the upper thrust disk 10 and the lower thrust disk 5 are made of impregnated Babbitt graphite materials, the upper thrust disk 11 and the lower thrust disk 6 are made of hard alloy materials and used for opposite grinding, the thrust disk 11 and the thrust disk 6 can transmit thrust generated by the rotor shaft 9 to the upper thrust disk 10 and the lower thrust disk 5, the upper thrust disk 10 and the lower thrust disk 5 can bear the upper and lower axial force, and finally the axial force pressure borne by the submersible motor can be reduced.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a double thrust structure of submerged motor pump, includes base (1) and casing (2), its characterized in that: the base (1) is connected with the thrust block (4) through a set screw (3), a lower thrust (5), a first thrust disc (6), a first thrust disc seat (7) and a lower bearing chamber (8) are sequentially and axially arranged above the thrust block (4), the lower bearing chamber (8) is sleeved on the rotor shaft (9), an upper end spigot of the lower bearing chamber (8) is matched with a housing spigot, a lower end spigot of the lower bearing chamber (8) is matched with a base spigot, the lower bearing chamber is fixed through a bolt, an upper thrust (10) and a second thrust disc (11) are further arranged above the lower bearing chamber (8), and the upper thrust (10) is connected below the second thrust disc (11).

2. The double thrust structure of an electric submersible pump according to claim 1, characterized in that: the thrust disc seat (7) is connected with a first thrust disc (6), the first thrust disc (6) is connected with a lower thrust (5), and the lower thrust (5) is located on the thrust seat (4).

3. The double thrust structure of an electric submersible pump according to claim 1, characterized in that: the diameter of the first thrust disc (6) is consistent with that of the lower thrust (5), and the diameter of the second thrust disc (11) is consistent with that of the upper thrust (10).

4. The double thrust structure of an electric submersible pump according to claim 1, characterized in that: the base (1) is cylindrical in shape.

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