Powder spraying machine

Abstract

The utility model belongs to the technical field of powder spraying equipment, and particularly relates to a powder spraying machine which comprises a shell and a fan arranged in the shell, the fan comprises a machine shell, an impeller arranged in the machine shell and a driving motor driving the impeller to rotate, a first cavity and a second cavity which are not communicated are arranged in the shell, the machine shell is arranged in the first cavity, and the fan is arranged in the second cavity. The driving motor is arranged in the second cavity. Powder can be effectively prevented from being accumulated in the driving motor, the ventilation and heat dissipation effects of the driving motor are good, the temperature of the driving motor is not prone to rising, the working efficiency of the driving motor is high, the driving motor is effectively prevented from being burnt out, and the service life of the driving motor is long.

Description

Technical field:

[0001] The utility model belongs to the technical field of powder spraying equipment, in particular to a powder spraying machine. Background technology:

[0002] Powder spraying machines are widely used in fish pond disinfection and sterilization, farm disinfection and disease prevention, vegetable garden plantation pest control, road anti-skid and other scenarios.

[0003] The Chinese utility model patent (publication number CN221132722U, application date 2023.11.24, publication date 2024.06.14) discloses a powder spraying machine, comprising a housing with a hopper inside, and a feed plate formed at the bottom of the hopper, a base fixed to the bottom of the housing, a fan located at the bottom of the hopper fixed in the base, an air outlet of the fan extending out of the housing, a powder inlet provided at the top end of the fan, and a drive motor for driving the impeller in the fan fixed at the bottom of the fan, the output shaft of the drive motor extending out of the top of the fan and passing through the feed plate, and a powder shifting plate located above the feed plate fixed to the top of the output shaft, a powder discharge port corresponding to the powder inlet provided on the feed plate, a lever for adjusting the size of the powder discharge port hinged at the bottom of the feed plate, and one end of the lever extending out of the housing. Referring to the drawings in the specification, it can be seen that the fan and the drive motor are both located in the housing and in the same space.

[0004] The disadvantage of the above-mentioned powder spraying machine is that: when the powder in the hopper enters the powder inlet through the discharge port, some powder will float out and then float in the shell. Some powder will enter the drive motor and accumulate inside the drive motor, hindering the ventilation and heat dissipation of the drive motor, causing the drive motor temperature to rise, the drive motor's working efficiency to be low, and in serious cases the motor may be burned out, resulting in a short service life of the drive motor. Summary of the invention:

[0005] The purpose of the utility model is to provide a powder spraying machine, which can effectively prevent powder from accumulating in the driving motor, so that the ventilation and heat dissipation effect of the driving motor is good, the temperature of the driving motor is not easy to rise, the working efficiency of the driving motor is high, the driving motor is effectively prevented from burning out, and the service life of the driving motor is long.

[0006] The utility model is achieved in this way:

[0007] A powder sprayer includes a shell and a fan arranged in the shell, the fan includes a casing, an impeller arranged in the casing, and a drive motor that drives the impeller to rotate, the shell is provided with a non-connected chamber 1 and chamber 2, the casing is arranged in chamber 1, and the drive motor is arranged in chamber 2.

[0008] In the above-mentioned powder sprayer, a partition is provided in the shell, and a through hole is provided on the partition for the drive motor to pass through. A gap is left between the hole wall of the through hole and the drive motor. A sealing sleeve is provided on the shell and is sleeved on the outside of the drive motor. The outer end of the sealing sleeve is in contact with the partition for sealing. The partition, the sealing sleeve and the shell together separate the shell into the chamber one and the chamber two.

[0009] In the above-mentioned powder spraying machine, the sealing sleeve and the casing are an integrated structure.

[0010] In the above-mentioned powder sprayer, the drive motor is arranged below the casing, the partition is arranged horizontally and located below the casing, the casing includes an upper casing and a lower casing located below the upper casing, the upper end of the sealing sleeve is arranged on the lower casing, and the lower end is sealed against the partition, the chamber one is the space formed by the upper surface of the partition and the outer periphery of the sealing sleeve, and the chamber two includes the space below the partition, and the space formed by the inner ring of the sealing sleeve and the lower surface of the lower casing.

[0011] In the above-mentioned powder spraying machine, the middle portion of the partition is sunken to form a mounting groove, and the lower end surface of the sealing sleeve contacts and seals against the upper surface of the mounting groove.

[0012] In the above-mentioned powder spraying machine, the rotating shaft of the driving motor passes through the lower casing to connect to the impeller, and the rotating shaft of the driving motor does not extend out of the upper casing. A powder storage chamber is provided in the casing above the casing, and a powder guide tube extending to the casing is provided at the bottom of the powder storage chamber. A powder lower port is formed at the bottom of the powder guide tube, and a powder inlet is provided below the lower powder port on the casing. A stirring motor with a rotating shaft arranged in a horizontal direction is provided below the powder storage chamber, and the rotating shaft of the stirring motor extends into the powder guide tube to connect to the stirring device.

[0013] In the above-mentioned powder spraying machine, the stirring device includes a mounting sleeve sleeved on the rotating shaft of the stirring motor and a plurality of blades uniformly distributed on the outer circumference of the mounting sleeve, and the blades are in an arc shape bent to one side.

[0014] In the above-mentioned powder spraying machine, the shell includes an upper shell, a middle shell and a lower shell, a funnel is provided in the middle shell, the upper shell and the funnel form the powder storage chamber, and the partition is provided on the lower shell.

[0015] In the above-mentioned powder spraying machine, a feed port is provided on the top of the upper shell, and a top cover is provided at the feed port.

[0016] In the above-mentioned powder spraying machine, ventilation holes are provided on the side wall of the lower shell.

[0017] In the above-mentioned powder spraying machine, a plurality of ventilation holes are provided, and are arranged on the left and right sides of the lower shell.

[0018] In the above-mentioned powder spraying machine, the funnel and the middle shell are an integrated structure, and the partition and the lower shell are an integrated structure.

[0019] In the above-mentioned powder spraying machine, the bottom of the lower shell is open, and a bottom plate is provided at the bottom opening. The upper shell and the middle shell are fixed by welding, the middle shell and the lower shell are fixed by welding, and the bottom plate and the middle shell are fixed by screws.

[0020] The outstanding advantages of the utility model compared with the prior art are:

[0021] 1. The utility model is provided with a non-connected chamber 1 and chamber 2 in the shell, and the casing is arranged in the chamber 1, and the drive motor is arranged in the chamber 2, so that the powder scattered from the casing floats in the chamber 1 and does not enter the chamber 2, let alone the drive motor, effectively avoiding the accumulation of powder in the drive motor, so that the ventilation and heat dissipation effect of the drive motor is good, the temperature of the drive motor is not easy to rise, the working efficiency of the drive motor is high, the drive motor is effectively prevented from burning out, and the service life of the drive motor is long;

[0022] 2. A partition is provided inside the housing of the utility model. The partition is provided with a through hole for the drive motor to pass through. A gap is left between the hole wall of the through hole and the drive motor, which improves the heat dissipation effect of the drive motor.

[0023] 3. The side wall of the lower shell of the utility model is provided with ventilation holes, which effectively ventilate and dissipate heat for the drive motor. Description of the drawings:

[0024] Figure 1 It is a three-dimensional diagram of the utility model;

[0025] Figure 2 It is a cross-sectional view of the utility model;

[0026] Figure 3 A three-dimensional diagram of the middle shell, funnel and stirring device of the utility model.

[0027] Figure numerals: 1, shell; 1a, upper shell; 1b, middle shell; 1c, lower shell; 1d, funnel; 1e, bottom plate; 2, casing; 2a, upper casing; 2b, lower casing; 3, impeller; 4, drive motor; 5, chamber one; 6, chamber two; 7, partition; 8, through hole; 9, sealing sleeve; 10, powder storage chamber; 11, powder guide tube; 12, powder outlet; 13, powder inlet; 14, stirring motor; 15, mounting sleeve; 16, blade; 17, ventilation hole; 18, feed port; 19, top cover. Specific implementation method:

[0028] The present invention is further described below with reference to specific embodiments. Figure 1 —3:

[0029] A powder sprayer includes a shell 1 and a fan arranged in the shell 1, the fan includes a casing 2, an impeller 3 arranged in the casing 2, and a drive motor 4 that drives the impeller 3 to rotate. The shell 1 is provided with a non-connected chamber 1 5 and a chamber 2 6, the casing 2 is arranged in chamber 1 5, and the drive motor 4 is arranged in chamber 2 6.

[0030] like Figure 1-3 As shown, the utility model is provided with a non-connected chamber 1 5 and a chamber 2 6 in the shell 1, and the casing 2 is arranged in the chamber 1 5, and the drive motor 4 is arranged in the chamber 2 6, so that the powder scattered from the casing 2 floats in the chamber 1 5 and will not enter the chamber 2 6, let alone the drive motor 4, which effectively avoids the accumulation of powder in the drive motor 4, and makes the ventilation and heat dissipation effect of the drive motor 4 good, the temperature of the drive motor 4 is not easy to rise, the working efficiency of the drive motor 4 is high, and the drive motor 4 is effectively prevented from burning out, and the service life of the drive motor 4 is long.

[0031] The specific method of separating chamber 1 5 and chamber 2 6 is as follows: a partition 7 is provided within the housing 1 , and a through hole 8 is provided on the partition 7 for the drive motor 4 to pass through. A gap is left between the wall of the through hole 8 and the drive motor 4 . The housing 2 is provided with a sealing sleeve 9 that fits over the drive motor 4 . The outer end of the sealing sleeve 9 contacts and seals against the partition 7 . The partition 7 , sealing sleeve 9 , and housing 2 together separate the housing 1 into chamber 1 5 and chamber 2 6 . A gap is left between the drive motor 4 and the wall of the through hole 8 , which improves the heat dissipation effect of the drive motor 4 .

[0032] Furthermore, the sealing sleeve 9 and the housing 2 are an integrated structure.

[0033] Furthermore, the drive motor 4 is arranged below the housing 2, the partition 7 is arranged horizontally and located below the housing 2, the housing 2 includes an upper housing 2a and a lower housing 2b located below the upper housing 2a, the upper end of the sealing sleeve 9 is arranged on the upper part of the lower housing 2b, and the lower end is in contact with the partition 7 for sealing. The chamber 1 5 is the space formed by the upper surface of the partition 7 and the outer periphery of the sealing sleeve 9, and the chamber 2 6 includes the space below the partition 7 and the space formed by the inner ring of the sealing sleeve 9 and the lower surface of the lower housing 2b. Figure 2 shown.

[0034] Furthermore, the middle of the partition 7 is sunken to form a mounting groove, and the lower end surface of the sealing sleeve 9 contacts the upper surface of the mounting groove to seal.

[0035] In order to stir the powder in the powder guide tube 11 and prevent the powder from agglomerating and blocking the powder guide tube 11, Figure 2 、 3As shown, the rotating shaft of the drive motor 4 passes through the lower casing 2b to connect to the impeller 3, and the rotating shaft of the drive motor 4 does not extend out of the upper casing 2a. A powder storage chamber 10 located above the casing 2 is provided in the housing 1. A powder guide tube 11 extending to the casing 2 is provided at the bottom of the powder storage chamber 10. A powder outlet 12 is formed at the bottom of the powder guide tube 11. A powder inlet 13 located below the powder outlet 12 is provided on the casing 2. A stirring motor 14 with a rotating shaft arranged in a horizontal direction is provided below the powder storage chamber 10. The rotating shaft of the stirring motor 14 extends into the powder guide tube 11 to connect to the stirring device. The stirring device of the utility model is driven to rotate by the rotating shaft of the stirring motor 14, rather than the rotating shaft of the drive motor 4. The stirring speed of the stirring device can be adjusted separately, that is, a smaller stirring speed can be obtained, effectively preventing flying powder.

[0036] The structure of the stirring device: Figure 3 As shown, the stirring device includes a mounting sleeve 15 mounted on the rotating shaft of the stirring motor 14 and a plurality of blades 16 evenly distributed on the outer circumference of the mounting sleeve 15. The blades 16 are in an arc shape bent to one side to form a turbine structure with good stirring effect.

[0037] The structure of the housing 1: Figure 1 、 2 As shown, the housing 1 includes an upper shell 1a, a middle shell 1b, and a lower shell 1c. A funnel 1d is provided in the middle shell 1b. The upper shell 1a and the funnel 1d form the powder storage chamber 10. The partition 7 is provided on the lower shell 1c. The structure is simple and convenient for installing various internal parts.

[0038] In order to facilitate feeding, a feeding port 18 is opened on the top of the upper shell 1a, and a top cover 19 is provided at the feeding port 18.

[0039] In order to ventilate and dissipate heat for the drive motor 4 , ventilation holes 17 are provided on the side wall of the lower shell 1 c .

[0040] In order to achieve better ventilation, the ventilation holes 17 are provided in multiple numbers and are arranged on the left and right sides of the lower shell 1c. The wind enters the lower shell 1c and the drive motor 4 from the ventilation holes 17 on one side through the heat dissipation function of the drive motor 4, and flows out from the ventilation holes 17 on the other side.

[0041] In order to reduce the number of assembly steps and ensure the firmness of the connection, the funnel 1d and the middle shell 1b are an integrated structure, and the partition 7 and the lower shell 1c are an integrated structure.

[0042] Furthermore, the bottom of the lower shell 1c is open, and a bottom plate 1e is provided at the bottom opening thereof. The upper shell 1a and the middle shell 1b are fixed by welding, the middle shell 1b and the lower shell 1c are fixed by welding, and the bottom plate 1e and the middle shell 1b are fixed by screws.

[0043] Furthermore, the upper housing 2a is fixed to the funnel 1d by screws, and the upper housing 2a and the lower housing 2b are fixedly connected by screws.

[0044] The above embodiment is only one of the preferred embodiments of the present invention and is not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made based on the shape, structure, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A powder spraying machine, comprising a housing (1) and a fan arranged in the housing (1), the fan comprising a casing (2), an impeller (3) arranged in the casing (2), and a drive motor (4) for driving the impeller (3) to rotate, characterized in that: The housing (1) is provided with a non-connected chamber 1 (5) and a chamber 2 (6), the casing (2) is arranged in the chamber 1 (5), and the drive motor (4) is arranged in the chamber 2 (6).

2. A powder spraying machine according to claim 1, characterized in that: A partition (7) is provided in the shell (1), and a through hole (8) is provided on the partition (7) for the drive motor (4) to pass through. A gap is left between the hole wall of the through hole (8) and the drive motor (4). A sealing sleeve (9) is provided on the casing (2) and is sleeved on the outside of the drive motor (4). The outer end of the sealing sleeve (9) contacts and seals the partition (7). The partition (7), the sealing sleeve (9) and the casing (2) together separate the shell (1) into the chamber 1 (5) and the chamber 2 (6).

3. A powder spraying machine according to claim 2, characterized in that: The driving motor (4) is arranged below the casing (2); the partition (7) is arranged horizontally and is located below the casing (2); the casing (2) comprises an upper casing (2a) and a lower casing (2b) located below the upper casing (2a); the upper end of the sealing sleeve (9) is arranged above the lower casing (2b), and the lower end contacts and seals the partition (7).

4. A powder spraying machine according to claim 3, characterized in that: The middle portion of the partition (7) is sunken to form a mounting groove, and the lower end surface of the sealing sleeve (9) contacts and seals against the upper surface of the mounting groove.

5. A powder spraying machine according to claim 3, characterized in that: The rotating shaft of the driving motor (4) passes through the lower casing (2b) and is connected to the impeller (3), and the rotating shaft of the driving motor (4) does not extend out of the upper casing (2a). A powder storage chamber (10) located above the casing (2) is provided in the shell (1). A powder guide tube (11) extending to the casing (2) is provided at the bottom of the powder storage chamber (10). A powder lower opening (12) is formed at the bottom of the powder guide tube (11). A powder inlet (13) located below the powder lower opening (12) is provided on the casing (2). A stirring motor (14) with a rotating shaft arranged in a horizontal direction is provided below the powder storage chamber (10). The rotating shaft of the stirring motor (14) extends into the powder guide tube (11) and is connected to the stirring device.

6. A powder spraying machine according to claim 5, characterized in that: The stirring device comprises a mounting sleeve (15) sleeved on the rotating shaft of the stirring motor (14) and a plurality of blades (16) uniformly distributed on the outer circumference of the mounting sleeve (15), wherein the blades (16) are in an arc shape bent to one side.

7. A powder spraying machine according to claim 5, characterized in that: The shell (1) comprises an upper shell (1a), a middle shell (1b) and a lower shell (1c); a funnel (1d) is provided in the middle shell (1b); the upper shell (1a) and the funnel (1d) form the powder storage chamber (10); and the partition (7) is provided on the lower shell (1c).

8. A powder spraying machine according to claim 7, characterized in that: A ventilation hole (17) is provided on the side wall of the lower shell (1c).

9. A powder spraying machine according to claim 7, characterized in that: The funnel (1d) and the middle shell (1b) are an integrated structure, and the partition (7) and the lower shell (1c) are an integrated structure.

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