CN220434950U

CN220434950U - Chemical liquid metering and adding pump

Info

Publication number: CN220434950U
Application number: CN202322110078.6U
Authority: CN
Inventors: 郑云福
Original assignee: Shenzhen Xinchuang Motor Technology Co ltd
Current assignee: Shenzhen Xinchuang Motor Technology Co ltd
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2024-02-02
Anticipated expiration: 2033-08-07

Abstract

The utility model relates to the technical field of industrial pumps, in particular to a chemical liquid metering and adding pump, which comprises a shell, a driving motor and a rotor assembly, wherein the shell comprises a mounting seat and a front cover, the mounting seat is arranged in an open way, and the front cover covers the open end of the mounting seat; the driving motor comprises a motor main body and an output shaft, the main body is fixed at the outer side of the mounting seat, and the output shaft extends into the mounting seat; the rotor assembly is located the mount pad, including rotor body, bearing and locking bolt, the rotor body cover is established on the output shaft and radially is fixed mutually with the output shaft, and locking bolt locks the bearing at the tip of output shaft, and the bearing is limited with the axial slip of rotor body butt for the rotor body does not move to the protecgulum direction along with the operation of motor main part, and the rotor just can not cause the extrusion to the protecgulum like this, can eliminate protecgulum and fluororubber tube bursting and liquid backflow scheduling problem.

Description

Chemical liquid metering and adding pump

Technical Field

The utility model relates to the technical field of industrial pumps, in particular to a chemical liquid metering and adding pump.

Background

With the development of economy and the progress of technology, the chemical additive liquid medicine used in the production process has various varieties. This requires quantitative and timed addition of chemical solutions to be added during the production process, which requires a quantifiable chemical solution addition pump to add different chemical solutions differently.

The adding pump has the advantages of corrosion resistance, leakage prevention, portability, microcomputer control, simple operation, convenient use, high precision, low use cost and the like. When the adding pump is used, only the fluororubber hose and the hose joint are in contact with the liquid medicine to be conveyed, and the rest parts are not in contact with the liquid medicine, so that the situations that the liquid medicine is polluted by the pump body and the pump body is corroded by the liquid medicine are avoided. The adding pump can convey liquid with strong corrosiveness, has self-priming function, can also operate under the condition of no liquid medicine, does not need a valve and a sealing ring, and can prevent liquid from flowing backwards.

The common additive pump consists of a machine body, a front cover, a fluororubber tube, a motor, a rotor, a hose joint cover, a measuring cup and a floating ball liquid level switch. In the use process, due to the production process of the machine body, the rotor and the fluororubber tube can move towards the front cover when the motor rotates. After the adding pump runs for a period of time, the rotor and the fluororubber tube extrude the front cover, and the front cover and the fluororubber tube burst, so that the adding pump is damaged, liquid leaks out, liquid flows backwards and other problems occur.

Disclosure of Invention

The utility model aims to provide a chemical liquid metering and adding pump, which solves the problems in the background technology by improving the pump body structure.

In order to achieve the above purpose, the technical scheme adopted by the utility model is to provide a chemical liquid metering and adding pump, which comprises a shell, a driving motor and a rotor assembly, wherein the shell comprises a mounting seat and a front cover, the mounting seat is arranged in an open way, and the front cover covers the open end of the mounting seat; the driving motor comprises a motor main body and an output shaft, the main body is fixed on the outer side of the mounting seat, and the output shaft extends into the mounting seat; the rotor assembly is located in the mounting seat and comprises a rotor body, a bearing and a locking bolt, wherein the rotor body is sleeved on the output shaft and is radially fixed with the output shaft, the locking bolt locks the bearing at the end part of the output shaft, and the bearing is abutted with the rotor body and limits the axial sliding of the rotor body.

Further, the section of the output shaft is arched, a connecting through hole is formed in the rotor body, and the connecting through hole is matched with the output shaft.

Further, the rotor assembly further includes a spacer disposed between the bearing and the locking bolt.

Further, the output shaft end is provided with a threaded hole, and one end of the locking bolt penetrates through the gasket and the central hole of the bearing and then is inserted into the threaded hole and is in threaded connection with the threaded hole.

Further, the chemical liquid metering and adding pump further comprises a connecting hose, an inlet and an outlet are arranged on the mounting seat, the connecting hose winds the inner side wall of the mounting seat for a circle, one end of the connecting hose is connected with the inlet, and the other end of the connecting hose is connected with the outlet.

Further, an extrusion protrusion is arranged on the front cover and is abutted against the connecting hose.

Further, the extrusion protrusion is disposed around the outer edge of the front cover and is disposed opposite to the surrounding track of the connection hose.

Further, the front cover is provided with a yielding groove, and the yielding groove is opposite to the locking bolt in position.

The utility model has the beneficial effects that:

1. the rotor assembly comprises a rotor body, a bearing and a locking bolt, the bearing is locked at the end part of the output shaft by the locking bolt, the bearing is in butt joint with the rotor body and limits the axial sliding of the rotor body, the rotor body does not move along the direction of the front cover along with the running of the motor body, the rotor can not extrude the front cover, and the problems of bursting of the front cover and a fluororubber tube, backflow of liquid and the like can be solved.

2. The section of the output shaft is arc-shaped, the rotor body is provided with a connecting through hole, and the connecting through hole is matched with the output shaft. The section of the output shaft adopts an arch structure, so that the rotor body and the radial direction of the output shaft are fixed, and the relative sliding between the rotor body and the output shaft is avoided.

3. The front cover is provided with the extrusion bulge which is abutted against the connecting hose to press and install the connecting hose, so that the connecting hose does not move towards the front cover end.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a chemical liquid metering pump according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the internal structure of a chemical liquid metering pump according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of the internal structure of a front cover of a chemical liquid metering pump according to an embodiment of the present utility model;

fig. 4 is a schematic diagram of an internal explosion structure of a chemical liquid metering pump according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a housing; 12. a mounting base; 121. an opening; 122. an inlet; 123. an outlet; 13. a front cover; 131. extruding the bulge; 132. a relief groove; 2. a driving motor; 21. a main body; 22. an output shaft; 221. a threaded hole; 3. a rotor assembly; 31. a rotor body; 311. a connecting through hole; 32. a bearing; 33. a locking bolt; 34. a gasket.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Referring to fig. 1-4, as a chemical liquid metering pump provided by the embodiment of the utility model, the chemical liquid metering pump comprises a shell 1, a driving motor 2 and a rotor assembly 3, wherein the shell 1 comprises a mounting seat 12 and a front cover 13, the mounting seat 12 is arranged in an opening 121, and the front cover 13 covers the opening 121 end on the mounting seat 12; the driving motor 2 comprises a motor main body 21 and an output shaft 22, wherein the main body 21 is fixed on the outer side of the mounting seat 12, and the output shaft 22 extends into the mounting seat 12; the rotor assembly 3 is located in the mounting seat 12 and comprises a rotor body 31, a bearing 32 and a locking bolt 33, wherein the rotor body 31 is sleeved on the output shaft 22 and is radially fixed with the output shaft 22, the locking bolt 33 locks the bearing 32 at the end part of the output shaft 22, and the bearing 32 is abutted with the rotor body 31 and limits the axial sliding of the rotor body 31.

The rotor assembly 3 comprises a rotor body 31, a bearing 32 and a locking bolt 33, the locking bolt 33 locks the bearing 32 at the end part of the output shaft 22, the bearing 32 is abutted with the rotor body 31 and limits the axial sliding of the rotor body 31, so that the rotor body 31 does not move towards the front cover 13 along with the running of the motor main body 21, the rotor cannot squeeze the front cover 13, and the problems of bursting of the front cover 13 and a fluororubber tube, damage of an adding pump, leakage of liquid, backflow of liquid and the like can be eliminated.

Specifically, the section of the output shaft 22 is arc-shaped, and the rotor body 31 is provided with a connecting through hole 311, and the connecting through hole 311 is matched with the output shaft 22. The section of the output shaft 22 adopts an arch structure, so that the rotor body 31 and the radial direction of the output shaft 22 are fixed, and the relative sliding between the rotor body and the output shaft is avoided. In other embodiments, the output shaft 22 may be configured in other non-circular configurations, and the output shaft 22 and the rotor body 31 of such a configuration do not slide relative to each other in the radial direction. The rotor assembly 3 further comprises a spacer 34, the spacer 34 being arranged between the bearing 32 and the locking bolt 33. The output shaft 22 is provided at an end thereof with a screw hole 221, and one end of the locking bolt 33 is inserted into the screw hole 221 through the washer 34 and the center hole of the bearing 32 and is screw-coupled to the screw hole 221.

The rotor body 31 in this embodiment is installed as follows: firstly, fixing the motor main body 21 on the outer side wall of the mounting seat 12, and paying attention to the fact that the output shaft 22 stretches into the inner side of the mounting seat 12 during mounting; subsequently, the rotor body 31 is mounted, and the connecting through hole 311 on the rotor body 31 is fitted in alignment with the end of the output shaft 22, so that the end portion of the output shaft 22 is exposed right after the rotor body 31 is mounted in place. At this time, the rotor body 31 and the output shaft 22 are clamped by the shoulder, so that the rotor body 31 is only in contact connection with the output shaft 22 and is not in contact with the mounting seat 12. The bearing 32 is installed after the rotor body 31 is installed in place, the bearing 32 is sleeved at the end of the output shaft 22, the gasket 34 and the locking bolt 33 are installed, one end of the locking bolt 33 passes through the gasket 34 and the central hole of the bearing 32 and then is inserted into the threaded hole 221 and is connected with the threaded hole 221 in a threaded manner, and the axial sliding of the rotor body 31 is limited, so that the rotor body 31 does not move towards the front cover 13 along with the running of the motor body 21.

Further, the chemical liquid metering pump further comprises a connecting hose, an inlet 122 and an outlet 123 are arranged on the mounting seat 12, the connecting hose winds the inner side wall of the mounting seat 12 for a circle, one end of the connecting hose is connected with the inlet 122, and the other end of the connecting hose is connected with the outlet 123.

Specifically, in the present embodiment. The hose specifically adopts the fluororubber pipe, and the hose is located the both ends of import 122 and export 123 and all is equipped with the software joint, can carry out the pipe connection. The extrusion bulge 131 is arranged on the inner side wall of the front cover 13, and when the front cover 13 is installed, the extrusion bulge 131 can be abutted against the connecting hose to press and install the connecting hose, so that the connecting hose does not move towards the end of the front cover 13 and is not directly contacted with the cover body of the front cover 13. The extrusion bulge 131 is arranged around the outer edge of the front cover 13 and is opposite to the surrounding track of the connecting hose, and when the front cover 13 is installed, the extrusion bulge 131 of the front cover 13 directly presses the connecting hose, so that the connecting hose is embedded into the annular groove formed by the rotor body 31 and the mounting seat 12, and the connecting hose is prevented from moving towards the front cover 13. The front cover 13 is also provided with a yielding groove 132, the yielding groove 132 is opposite to the locking bolt 33 in position, and the yielding groove 132 leaves a position space for locking threads, so that the front cover 13 is convenient to install.

The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. A chemical liquid metering pump, comprising:

the shell (1) comprises a mounting seat (12) and a front cover (13), wherein the mounting seat (12) is arranged in an opening (121), and the front cover (13) covers the opening (121) end of the mounting seat (12);

the driving motor (2) comprises a motor main body (21) and an output shaft (22), wherein the main body (21) is fixed on the outer side of the mounting seat (12), and the output shaft (22) stretches into the mounting seat (12);

rotor subassembly (3), be located in mount pad (12), including rotor body (31), bearing (32) and locking bolt (33), rotor body (31) cover is established on output shaft (22) and with output shaft (22) are radial mutually fixed, locking bolt (33) will bearing (32) lock the tip of output shaft (22), bearing (32) with rotor body (31) butt and will the axial slip of rotor body (31) is prescribe a limit to.

2. Chemical liquid metering pump according to claim 1, characterized in that the output shaft (22) has an arcuate cross section, the rotor body (31) is provided with a connecting through hole (311), and the connecting through hole (311) is adapted to the output shaft (22).

3. Chemical liquid metering pump according to claim 1, characterized in that the rotor assembly (3) further comprises a spacer (34), the spacer (34) being arranged between the bearing (32) and the locking bolt (33).

4. A chemical liquid metering pump as claimed in claim 3, wherein the output shaft (22) is provided with a threaded hole (221) at its end, and one end of the locking bolt (33) is inserted into the threaded hole (221) after passing through the central holes of the washer (34) and the bearing (32) and is screwed into the threaded hole (221).

5. The chemical liquid metering pump as claimed in claim 1, further comprising a connection hose, wherein the installation seat (12) is provided with an inlet (122) and an outlet (123), the connection hose is wound around the inner side wall of the installation seat (12) for a circle, one end of the connection hose is connected with the inlet (122), and the other end is connected with the outlet (123).

6. Chemical liquid metering pump according to claim 5, characterized in that the front cover (13) is provided with a squeezing protrusion (131), the squeezing protrusion (131) abutting the connection hose.

7. Chemical liquid metering pump according to claim 6, characterized in that the extrusion boss (131) is arranged around the outer edge of the front cover (13) and opposite to the encircling track of the connection hose.

8. Chemical liquid metering pump according to claim 1, characterized in that the front cover (13) is provided with a relief groove (132), the relief groove (132) being located opposite the locking bolt (33).