CN217107524U

CN217107524U - Self-aligning guide wheel of low-temperature immersed pump

Info

Publication number: CN217107524U
Application number: CN202122612753.6U
Authority: CN
Inventors: 张奕; 刘中河; 李智锋; 艾绍平; 李红兵; 曾常亮; 薛志勇; 胡兴乔; 丁宗涛; 平静波; 郭亮
Original assignee: Beijing Gas Group Tianjin Lng Co ltd; Beijing Gas Group Co Ltd
Current assignee: Beijing Gas Group Tianjin Lng Co ltd; Beijing Gas Group Co Ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-08-02
Anticipated expiration: 2031-10-28

Abstract

The utility model provides a low temperature immersed pump is from aligning leading wheel, include: the elastic roller unit comprises a roller and an elastic arm, the roller is arranged at the front end of the elastic arm, and the rear end of the elastic arm is provided with a spring supporting seat; the fixing base unit includes roating seat, mounting disc and spring structure, the roating seat is installed on the mounting disc, spring structure includes limiting plate and spring, the limiting plate sets up on the roating seat, the rear end of elastic arm with the roating seat links to each other, the spring sets up the limiting plate with between the spring support seat, the utility model discloses mainly utilize gyro wheel cooperation spring structure to play and fall the in-process of installing to the bottom valve under the pump, can keep the leading wheel and contact with the wall of a well all the time, because the balance of three leading wheel elasticity, can make the pump maintain the central point that is close to the pump well and put the effect of the pump well of packing into smoothly.

Description

Self-aligning guide wheel of low-temperature immersed pump

Technical Field

The utility model relates to a cryopump technical field particularly, especially relates to a low temperature immersed pump is from aligning leading wheel.

Background

At present, in order to protect a pump head from colliding with a pump well in the descending process of the pump in the pump well, guide wheels are designed on the periphery of the pump in the tank by various manufacturers. The guide wheel has two types of fixed type and elasticity, but both play the effect of preventing colliding with.

After the bottom valve is in the position, the guide wheel is separated from the well wall, and the guide wheel fails. In order to make the leading wheel exert bigger effect, when the pump falls into bottom valve and pump operation, the time leading wheel can play automatic to the heart and can the auxiliary stay pump head top when the operation, utility model discloses an automatic to the heart leading wheel.

In the process that the pump falls down and is installed on the bottom valve, the automatic centering guide wheel can keep the guide wheel to be always in contact with the well wall, and due to the balance of the elastic forces of the three guide wheels, the pump can be kept at the central position close to the pump well and can be smoothly installed in the pump well. Meanwhile, in the process of operating the pump, the pump is always in contact with the well wall, the supporting rigidity of the pump is increased, and the top shaking generated in the operation process of the pump is reduced. When the pump is lifted out of the pump well, the rotary seat rotates around the mounting disc under the action of friction force between the rotary seat and the well wall, the spring is always in the front of the motion direction, the roller is in the back of the motion direction, and the motion direction is the same as that when the pump is installed in the pump well.

Therefore, a low-temperature immersed pump self-aligning guide wheel needs to be designed.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned technical problems, a self-aligning guide wheel of a cryogenic immersed pump is provided. The utility model discloses mainly utilize gyro wheel cooperation spring structure to play and fall the in-process of installing to the bottom valve under the pump, can keep the leading wheel all the time with the wall of a well contact, because the balance of three leading wheel elasticity, can make the pump maintain the central point that is close to the pump well and put, the effect of the pump well of packing into smoothly.

The utility model discloses a technical means as follows:

a self-aligning guide wheel of a low-temperature immersed pump is characterized by comprising: the elastic roller unit comprises a roller and an elastic arm, the roller is arranged at the front end of the elastic arm, and the rear end of the elastic arm is provided with a spring supporting seat; the fixing base unit comprises a rotating base, a mounting disc and a spring structure, the rotating base is installed on the mounting disc, the spring structure comprises a limiting plate and a spring, the limiting plate is arranged on the rotating base, the rear end of the elastic arm is connected with the rotating base, and the spring is arranged between the limiting plate and the spring supporting seat.

Furthermore, the roller is connected with the elastic arm through a pin I; the elastic arm is connected with the rotating seat through a pin II; the rotating seat is connected with the mounting disc through a pin III.

Further, the spring supporting seat and the limiting plate are respectively provided with a 45-degree stud, and the spring is arranged between the two 45-degree studs.

Furthermore, the roller is made of copper alloy without sparks, and sparks are not generated when the roller is in contact with the wall of the pump well.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model discloses a low temperature immersed pump is from aligning leading wheel, the in-process of installing to the bottom valve falls under the pump, can keep the leading wheel all the time with the wall of a well contact, because the balance of three leading wheel elasticity, can make the pump maintain the central point that is close to the pump well and put, the pump well of packing into smoothly.

2. The utility model discloses a low temperature immersed pump is from aligning leading wheel, when the pump was proposed outside to the pump well, the roating seat can be because of rotatory around the mounting disc with the effect of wall of a well friction force, makes the spring be in the direction of motion before all the time, and the gyro wheel is in the direction of motion after, and the motion process is synchronous when packing into the pump well with the pump.

Based on the reason, the utility model discloses can extensively promote in fields such as cryopump technique.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural view of the self-aligning guide wheel of the low-temperature immersed pump of the present invention.

Fig. 2 is a schematic view of the self-aligning guide wheel of the low-temperature immersed pump of the present invention.

In the figure: 1. a roller; 2. a pin I; 3. a resilient arm; 4. a rotating base; 5. a pin II; 6. a nut; 7. a 45 degree stud; 8. a spring; 9. a limiting plate; 10. installing a disc; 11. and (3) a pin III.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below 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 work belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

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. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as 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.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element in question must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship 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.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

As shown in fig. 1, the utility model provides a low temperature immersed pump is from aligning leading wheel, include: the elastic roller 1 unit comprises a roller 1 and an elastic arm 3, the roller 1 is arranged at the front end of the elastic arm 3, and a spring supporting seat is arranged at the rear end of the elastic arm 3; the fixed seat unit comprises a rotating seat 4, a mounting disc 10 and a spring structure, the rotating seat 4 is mounted on the mounting disc 10, the spring structure comprises a limiting plate 9 and a spring 8, the limiting plate 9 is arranged on the rotating seat 4, the rear end of the elastic arm 3 is connected with the rotating seat 4, and the spring 8 is arranged between the limiting plate 9 and the spring supporting seat; the roller 1 is connected with the elastic arm 3 through a pin I2; the elastic arm 3 is connected with the rotating seat 4 through a pin II 5; the rotating seat 4 is connected with the mounting disc 10 through a pin III 11; 45-degree studs 7 are respectively arranged on the spring 8 supporting seat and the limiting plate 9, and the spring 8 is arranged between the two 45-degree studs 7; the roller 1 is made of copper alloy without sparks and does not generate sparks when contacting with the wall of the pump well.

Example 1

As shown in figure 1, the utility model provides a low temperature immersed pump is from aligning leading wheel, a serial communication port, including gyro wheel 1, round pin I2, elastic arm 3, roating seat 4, round pin II 5, nut 6, 45 double-screw bolts 7, spring 8, limiting plate 9, mounting disc 10, round pin III 11.

The roller 1 is made of copper alloy without spark;

the roller 1 is supported by an elastic arm 3 and is hinged by a pin I2;

elastic arm 3 is articulated by round pin II 5 with roating seat 4, leans on 45 studs 7, spring 8, limiting plate 9 and nut 6 to expand tightly, and the tight power of expanding is decided by the initial compression volume of spring 6, and the compression volume is adjusted by limiting plate 9, and nut 6 carries out the locking processing of spot welding with limiting plate 9 and elastic arm 3 after adjusting.

The upper end and the lower end of the immersed pump are respectively provided with 3 self-aligning guide wheels, and the guide wheels can be kept to be always contacted with the well wall in the process that the pump falls down and is arranged on the bottom valve. Meanwhile, in the process of operating the pump, the pump is always in contact with the well wall, the supporting rigidity of the pump is increased, and the top shaking generated in the operation process of the pump is reduced.

When the pump is put out of the pump well, the rotary seat can rotate around the mounting disc under the action of friction force with the well wall, the spring is always in the front of the moving direction, the roller is in the back of the moving direction, and the moving process is synchronous with the pump when the pump is put into the pump well.

As shown in fig. 2, the utility model discloses a plurality of directions about installing in jar interior pump circumference, when preventing that the pump from colliding with, realized simple to operate, the stable characteristics of operation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a low temperature immersed pump is from aligning leading wheel which characterized in that includes: the elastic roller unit comprises a roller and an elastic arm, the roller is arranged at the front end of the elastic arm, and the rear end of the elastic arm is provided with a spring supporting seat; the fixing base unit comprises a rotating base, a mounting disc and a spring structure, the rotating base is installed on the mounting disc, the spring structure comprises a limiting plate and a spring, the limiting plate is arranged on the rotating base, the rear end of the elastic arm is connected with the rotating base, and the spring is arranged between the limiting plate and the spring supporting seat.

2. The self-aligning guide wheel of a cryogenic submersible pump according to claim 1, wherein the roller is connected to the elastic arm by a pin I; the elastic arm is connected with the rotating seat through a pin II; the rotating seat is connected with the mounting disc through a pin III.

3. The self-aligning guide wheel of a cryogenic submersible pump according to claim 1, wherein the spring support seat and the limiting plate are respectively provided with a 45 ° stud, and the spring is disposed between the two 45 ° studs.

4. The self-aligning guide wheel of a cryogenic submersible pump as defined in claim 1 wherein the roller is a copper alloy spark-free material that does not produce sparks upon contact with the well wall.