A motor special for chemical pump

Abstract

The utility model discloses a kind of motor special for chemical pump, belong to motor technical field, solve the lack of heat dissipation structure at the output shaft of existing device, output shaft long-term full-load operation, prone to the problem of output shaft damage, its external structure includes shell, rear end cover, front end cover and output shaft;The front end surface of the front end cover is provided with heat dissipation component;The heat dissipation component includes driving gear fixedly sleeved on the outer surface of output shaft, the outer portion of the driving gear is sleeved with annular gear meshing with it, and the camber surface of the annular gear is fixedly installed with fan blade.The synchronous rotation of driving gear driven by output shaft can make annular gear and its external fan blade and connecting ring rotate together, and then the hot air around the front side of front end cover and output shaft is blown to the outside by fan blade, that is, the front side of output shaft and front end cover can be cooled, and the purpose of heat dissipation treatment of output shaft is achieved, which is beneficial to increase the service life of output shaft.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically a special motor for chemical pumps. Background Technology

[0002] The special motor for chemical pumps is designed for the special working conditions of the chemical industry. The motor housing is made of high-strength metal, with strong sealing performance, which can withstand the internal explosion pressure and prevent the flame from leaking out. The housing mating surface is designed with precision explosion-proof gaps to prevent the explosion from spreading to the external environment and to prevent liquids and dust from entering the motor. The motor and pump are usually connected by a coupling to realize torque transmission and compensate for certain installation errors.

[0003] A search revealed that patent application number 202322671498.1 discloses a pump motor, belonging to the field of motor technology. It solves the problem of existing motors occupying too much space. This pump motor includes a handle, a barrel, a front cover fixed to the front end of the barrel, and a junction box horizontally positioned on the top of the barrel. The handle is U-shaped, with both ends being vertically arranged straight rods. The front end of the junction box and the front cover are both located between the two straight rods. The left and right sides of the front cover are horizontally formed with raised rings, and the lower ends of the two straight rods respectively press against the end faces of the raised rings. Each straight rod has a slot extending vertically along the axial direction of the raised ring, and the bottom wall of the slot is closed. Screws pass through both slots, with the screw shank screwed into the corresponding raised ring and the screw head pressing against the corresponding straight rod. Although the handle of this pump motor has a sliding connection between its two ends and the front cover via screws, raised rings, and grooves, allowing for easy movement of the entire pump and reducing space occupation during transport, the output shaft of the pump motor lacks a heat dissipation structure. With the output shaft operating at full load for extended periods, the mechanical friction between the output shaft and bearings / seals, as well as the heat conduction from the motor's internal windings and core, will cause continuous heat accumulation on the output shaft. This heat accumulation will not only accelerate the aging of bearing grease and seal failure but may also lead to a decline in the material properties of the output shaft, resulting in structural damage such as deformation and fatigue cracks.

[0004] Therefore, we propose a special motor for chemical pumps. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a special motor for chemical pumps, which solves the problem that the output shaft of existing devices lacks a heat dissipation structure, and the output shaft is prone to damage due to long-term full-load operation.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a special motor for chemical pumps, the external structure of which includes a housing, a rear end cover, a front end cover and an output shaft, the front end cover and the rear end cover are respectively installed at the front and rear ends of the housing, the output shaft is provided inside the housing, and the front end of the output shaft passes through the front end cover and extends outward; A heat dissipation component is provided on the front surface of the front cover; The heat dissipation assembly includes a drive gear fixedly mounted on the outer surface of the output shaft. A ring gear meshes with the drive gear. A fan blade is fixedly mounted on the arc surface of the ring gear. A protective cover is provided on the outside of the fan blade. Uniformly distributed air holes are opened on the arc surface of the protective cover.

[0007] Preferably, the end of the fan blade away from the ring gear is fixedly installed on the inner wall of the connecting ring. The connecting ring is rotatably fitted into the middle of the inner wall of the protective cover via a bearing ring. The protective cover shields the fan blade to prevent it from being damaged by contact with external objects during rotation.

[0008] Preferably, an annular plate is fixedly installed at one end of the protective cover near the front end cover. The annular plate is detachably installed on the front end face of the front end cover by bolts, so as to facilitate the assembly of the protective cover and the annular plate on the front end face of the front end cover and to facilitate the removal of the protective cover and the annular plate for maintenance of the output shaft.

[0009] Preferably, mounting holes are provided at all four corners of the front and rear covers, and a cross-shaped heat dissipation groove is provided on the back of the rear cover. The heat dissipation groove is used to increase the airflow rate on the back of the rear cover, thereby improving the heat dissipation effect of the rear cover.

[0010] Preferably, the outer surface of the housing is fixedly equipped with uniformly distributed heat dissipation fins, which can increase the heat dissipation effect of the housing.

[0011] This utility model provides a special motor for chemical pumps. It has the following beneficial effects: 1. This special motor for chemical pumps drives the drive gear to rotate synchronously through the output shaft. This allows the ring gear, its external fan blades, and the connecting ring to rotate together. The fan blades then blow hot air from the front side of the front cover and around the output shaft to the outside, thus cooling the output shaft and the front side of the front cover. This achieves the purpose of heat dissipation for the output shaft, which helps to increase the service life of the output shaft. It solves the problem of the lack of heat dissipation structure at the output shaft of existing devices, which leads to the output shaft being damaged due to long-term full-load operation. 2. The special motor for this chemical pump uses a heat dissipation groove to increase the airflow rate on the back of the rear end cover, thereby improving the heat dissipation effect of the rear end cover. The heat dissipation fins can also increase the heat dissipation effect of the outer casing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the outer shell structure of this utility model; Figure 4 This is a schematic diagram of the disassembled structure of the heat dissipation component of this utility model.

[0013] In the diagram: 1. Outer shell; 2. Rear end cover; 21. Heat dissipation groove; 3. Front end cover; 4. Output shaft; 5. Heat dissipation assembly; 51. Drive gear; 52. Ring gear; 53. Air vent; 54. Fan blade; 55. Connecting ring; 56. Protective cover; 57. Annular plate; 6. Heat dissipation fins. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example 1: like Figure 1-4As shown: Its external structure includes a housing 1, a rear end cover 2, a front end cover 3, and an output shaft 4. The front end cover 3 and the rear end cover 2 are respectively installed at the front and rear ends of the housing 1. The output shaft 4 is arranged inside the housing 1, and the front end of the output shaft 4 passes through the front end cover 3 and extends outward. A heat dissipation assembly 5 is provided on the front end face of the front end cover 3. The heat dissipation assembly 5 includes a drive gear 51 fixedly fitted on the outer surface of the output shaft 4. A ring gear 52 meshes with the drive gear 51. A fan blade 54 is fixedly installed on the arc surface of the ring gear 52. A protective cover 56 is provided on the outside of the fan blade 54. The arc surface of the protective cover 56 has evenly distributed air holes 53. The end of the fan blade 54 away from the ring gear 52 is fixedly installed on the inner wall of the connecting ring 55. The connecting ring 55 is rotatably fitted in the middle of the inner wall of the protective cover 56 through a bearing ring. A ring plate 57 is fixedly installed at one end of the protective cover 56 near the front cover 3. The ring plate 57 is detachably installed on the front face of the front cover 3 by bolts. The output shaft 4 drives the drive gear 51 to rotate synchronously, which can make the ring gear 52, its external fan blades 54 and connecting ring 55 rotate together. Then, the fan blades 54 blow the hot air on the front side of the front cover 3 and around the output shaft 4 to the outside, which can cool down the output shaft 4 and the front side of the front cover 3, thus achieving the purpose of heat dissipation treatment for the output shaft 4 and increasing the service life of the output shaft 4. Example 2: like Figure 1-3 As shown: Mounting holes are provided at the four corners of the front cover 3 and the rear cover 2. A cross-shaped heat dissipation groove 21 is provided on the back of the rear cover 2. The outer surface of the outer shell 1 is fixedly equipped with evenly distributed heat dissipation fins 6. The heat dissipation groove 21 is used to increase the airflow rate on the back of the rear cover 2, thereby improving the heat dissipation effect of the rear cover 2. The heat dissipation fins 6 can also increase the heat dissipation effect of the outer shell 1.

[0016] The working principle and usage process of this utility model: When using this special motor for chemical pumps, the heat dissipation groove 21 increases the airflow rate on the back of the rear end cover 2, thereby improving the heat dissipation effect of the rear end cover 2. The heat dissipation fins 6 absorb the temperature inside the outer shell 1 and then dissipate it into the air, which can improve the heat dissipation effect of the outer shell 1. When the output shaft 4 rotates, it can drive the drive gear 51 to rotate. Through the meshing of the drive gear 51 and the ring gear 52, the ring gear 52, its external fan blades 54, and the connecting ring 55 can rotate together. Then, the fan blades 54 blow the hot air on the front side of the front end cover 3 and the area around the output shaft 4 to the outside, which can cool down the output shaft 4 and the front side of the front end cover 3.

[0017] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A special motor for chemical pumps, the external structure of which includes a housing (1), a rear end cover (2), a front end cover (3) and an output shaft (4), wherein the front end cover (3) and the rear end cover (2) are respectively installed at the front and rear ends of the housing (1), and the output shaft (4) is provided inside the housing (1), wherein the front end of the output shaft (4) passes through the front end cover (3) and extends outward; Its features are: The front end cover (3) is provided with a heat dissipation component (5) on its front end surface; The heat dissipation assembly (5) includes a drive gear (51) fixedly mounted on the outer surface of the output shaft (4). The drive gear (51) is fitted with a ring gear (52) meshing with it. A fan blade (54) is fixedly mounted on the arc surface of the ring gear (52). A protective cover (56) is provided on the outside of the fan blade (54). The arc surface of the protective cover (56) is provided with evenly distributed air holes (53). Mounting holes are provided at the four corners of the front cover (3) and the rear cover (2), and a cross-shaped heat dissipation groove (21) is provided on the back of the rear cover (2).

2. The special motor for chemical pumps according to claim 1, characterized in that: The end of the fan blade (54) away from the ring gear (52) is fixedly installed on the inner wall of the connecting ring (55), and the connecting ring (55) is rotated and fitted in the middle of the inner wall of the protective cover (56) by the bearing ring.

3. The special motor for chemical pumps according to claim 1, characterized in that: The protective cover (56) has an annular plate (57) fixedly installed at one end near the front cover (3), and the annular plate (57) is detachably installed on the front surface of the front cover (3) by bolts.

4. The special motor for chemical pumps according to claim 1, characterized in that: The outer surface of the outer shell (1) is fixedly equipped with uniformly distributed heat dissipation fins (6).

Images