Anti-corrosion impeller of slurry pump

Abstract

The utility model relates to the technical field of impellers, in particular to an anti-corrosion impeller of a slurry pump. The problem that in the prior art, when an impeller of a slurry pump is clamped and cannot rotate, a driving motor is prone to being burnt out is solved, and the practicability of equipment is improved. The device structurally comprises a rotating disc, a feeding port is formed in the rotating disc, a centrifugal structure used for pouring pulp residues entering from the feeding port out of the side face of the rotating disc is arranged in the rotating disc, a connecting disc is arranged on the side, away from the feeding port, of the rotating disc, and a sliding structure used for enabling the connecting disc to slide relative to the rotating disc is arranged in the rotating disc. A limiting structure used for keeping the connecting disc and the rotating disc in a separated state after the connecting disc is separated from the motor output shaft is arranged between the rotating disc and the connecting disc, a connecting piece is arranged at the end, away from the rotating disc, of the connecting disc, and a threaded hole used for being in threaded connection with the motor output shaft is formed in the connecting piece. According to the utility model, the risk that the motor is burnt out is reduced, and the slurry pump is safer and more reliable to use. The utility model has strong practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of impellers, and specifically, to an anti-corrosion impeller for a slurry pump. Background Art

[0002] A slurry pump is a device used to transport liquids containing solid particles, and it is usually used in the production processes of industries such as mines, metallurgy, coal mines, electric power, and chemical engineering to transport slurries such as slag, coal slag, and mud.

[0003] The existing slurry pump provides power by rotating the impeller to complete the transportation of the slurry. Although the transportation of the slurry can be completed in this way, the following problems still exist:

[0004] If the slurry pump is not cleaned after transporting the slurry, it may cause the slurry to coagulate into blocks, and the impeller may be stuck and unable to rotate. At this time, if the worker misoperates and starts the drive motor, the output shaft of the motor may not be able to drive the impeller to rotate, resulting in the phenomenon of motor burnout. Summary of the Utility Model

[0005] The utility model provides an anti-corrosion impeller for a slurry pump, which solves the problem that the drive motor is easily burned out when the impeller of the slurry pump is stuck and unable to rotate in the prior art, and improves the practicability of the device.

[0006] The technical solution of the utility model is as follows:

[0007] An anti-corrosion impeller for a slurry pump includes a rotating disk.

[0008] A feed inlet is provided on the rotating disk. A centrifugal structure is provided inside the rotating disk for pouring the slurry and slag entering from the feed inlet out from the side of the rotating disk. A connection disk is provided on the side of the rotating disk away from the feed inlet. A sliding structure is provided inside the rotating disk for sliding the connection disk relative to the rotating disk. A limiting structure is provided between the rotating disk and the connection disk for keeping the connection disk and the rotating disk in a separated state after the connection disk disengages from the output shaft of the motor. A connecting member is provided at the end of the connection disk away from the rotating disk. A threaded hole for threaded connection with the output shaft of the motor is provided inside the connecting member. Anti-corrosion coatings are provided on the outer surfaces of the rotating disk and the connection disk.

[0009] Furthermore, an installation groove is provided on the side of the rotating disk away from the feed inlet. The installation groove is of a cylindrical structure. A limiting cover is provided at the notch of the installation groove. The limiting cover is threadedly connected to the installation groove. A connecting member is fixed on the connection disk. The threaded hole is provided inside the connecting member. An installation hole is provided on the limiting cover. The connecting member passes through the installation hole.

[0010] Further, the sliding structure includes a number of first sliding columns fixedly arranged in the installation groove. A sliding groove is provided in each first sliding column. A number of second sliding columns are fixed on the connecting disk. The second sliding columns correspond to the sliding grooves one by one and are slidably connected with the sliding grooves.

[0011] Further, the limiting structure includes a limiting tension spring arranged in the sliding groove. One end of the limiting tension spring is fixedly connected with the bottom of the sliding groove, and the other end of the limiting tension spring is fixedly connected with the second sliding column.

[0012] Further, each of the first sliding columns is integrally formed with the installation groove, and each of the second sliding columns is integrally formed with the connecting disk. The anti-corrosion coating is composed of epoxy resin anti-corrosion paint.

[0013] Further, the rotating disk includes a first mounting plate and a second mounting plate that are parallel to each other. The centrifugal structure includes a number of guide vanes. Each of the guide vanes is arranged between the first mounting plate and the second mounting plate. The feed inlet is arranged at the center of the first mounting plate. One end of each of the guide vanes is connected to the feed inlet.

[0014] Further, a number of first compound leaves are provided on the side of the first mounting plate away from the second mounting plate. The first compound leaves are evenly distributed along the central axis of the feed inlet. A number of second compound leaves are provided on the side of the limiting cover away from the rotating disk. The second compound leaves are evenly distributed along the central axis of the feed inlet. Guide inclined surfaces are provided on both the first compound leaves and the second compound leaves.

[0015] The working principle and beneficial effects of the present utility model are as follows:

[0016] The normal working process of the present utility model: The slurry enters the rotating disk from the feed inlet. As the rotating disk rotates, it drives the slurry to do centrifugal motion, completing the transportation of the slurry in the slurry pump.

[0017] In the present utility model, the connecting disk is slidably arranged on the rotating disk, and threaded holes are provided on the connecting disk. When the rotating disk is stuck and unable to rotate, the motor rotates and drives the connecting disk to move towards the motor direction through the threaded holes until it disengages from the motor output shaft, and maintains this state through the limiting structure, so that the motor cannot be connected to the connecting disk through the output shaft, reducing the risk of the motor being burned out, and making the slurry pump safer and more reliable to use. The present utility model has strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following further describes the present utility model in detail in conjunction with the drawings and specific embodiments.

[0019] Figure 1 is a structural schematic diagram of the prior art of this embodiment;

[0020] Figure 2 is a schematic diagram of the overall structure of this embodimentFigure 1 ;

[0021] Figure 3 Schematic diagram of the overall structure of this embodiment Figure 2 ;

[0022] Figure 4 Schematic diagram of the internal structure of this embodiment;

[0023] Figure 5 Schematic diagram of the limiting structure in this embodiment.

[0024] In the figure:

[0025] 1. Rotating disk; 11. First mounting plate; 111. First compound blade; 1111. Flow guiding inclined surface; 112. Feed inlet; 12. Second mounting plate; 121. First sliding column; 122. Sliding groove; 13. Mounting groove; 2. Limiting cover; 21. Second compound blade; 22. Mounting hole; 3. Flow guiding blade; 4. Connecting piece; 41. Threaded hole; 5. Connecting disk; 51. Second sliding column; 6. Limiting tension spring. Specific implementation manners

[0026] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

[0027] As Figures 2 to 5 shown, a corrosion - resistant impeller of a slurry pump, its structure includes a rotating disk 1. The feed inlet 112 in this embodiment is arranged on the rotating disk 1. A centrifugal structure is arranged inside the rotating disk 1 to pour out the pulp residue entering from the feed inlet 112 from the side of the rotating disk 1. A connecting disk 5 is arranged on the side of the rotating disk 1 away from the feed inlet 112. A sliding structure is arranged inside the rotating disk 1 to enable the connecting disk 5 to slide relative to the rotating disk 1. A connecting piece 4 is arranged at the end of the connecting disk 5 away from the rotating disk 1. A threaded hole 41 is arranged inside the connecting piece 4 to be threadedly connected with the output shaft of the motor. A limiting structure is arranged between the rotating disk 1 and the connecting disk 5 to keep the connecting disk 5 and the rotating disk 1 in a separated state after the connecting disk 5 is disengaged from the output shaft of the motor. An anti - corrosion coating is arranged on the outer surfaces of the rotating disk 1 and the connecting disk 5 to prevent the corrosion of the impeller by the slurry.

[0028] In this embodiment, the threaded hole 41 is fixedly connected to the output shaft of the driving motor. When the driving motor starts, its rotational speed is relatively slow and gradually increases over time. The rotational direction of the output shaft of the driving motor in this embodiment is opposite to the locking direction of the threaded hole 41 and the output shaft when they are locked and installed on the threaded hole 41. When the impeller is jammed and unable to rotate, the connection disk 5 disengages from the motor output shaft through the threaded hole 41, preventing damage to the motor.

[0029] In this embodiment, the installation groove 13 is arranged on the side of the rotating disk 1 away from the feed inlet 112. The installation groove 13 is of a cylindrical structure. The limiting cover 2 is arranged at the notch of the installation groove 13, and the limiting cover 2 is threadedly connected to the installation groove 13. The connecting member 4 is fixedly arranged on the connection disk 5, the threaded hole 41 is arranged inside the connecting member 4, and the installation hole 22 is arranged on the limiting cover 2. The connecting member 4 passes through the installation hole 22, and there is a gap between the connecting member 4 and the installation hole 22 to facilitate their sliding. The design of the limiting cover 2 is to prevent the connection disk 5 from disengaging from the rotating disk 1. The connection disk 5 slides between the installation groove 13 and the limiting cover 2 and will not disengage to avoid loss of parts.

[0030] The sliding structure in this embodiment includes a number of first sliding columns 121, which are all fixedly arranged in the installation groove 13. The sliding groove 122 is arranged inside the first sliding column 121. A number of second sliding columns 51 are fixedly arranged on the connection disk 5. The second sliding columns 51 correspond to the sliding grooves 122 one by one and are slidably connected to the sliding grooves 122. Such a design restricts the degrees of freedom of the connection disk 5, enabling the connection disk 5 to move relative to the rotating disk 1 only in one direction. The sliding movement of the connection disk 5 is more stable.

[0031] The limiting structure in this embodiment includes a limiting tension spring 6, which is arranged in the sliding groove 122. One end of the limiting tension spring 6 is fixedly connected to the bottom of the sliding groove 122, and the other end of the limiting tension spring 6 is fixedly connected to the second sliding column 51. Under the action of the limiting tension spring 6, when the threaded hole 41 on the connection disk 5 disengages from the output shaft of the motor, the connection disk 5 remains in a state of being disengaged from the motor output shaft all the time, preventing the connection disk 5 from coming into contact with the motor output shaft and causing collision damage.

[0032] The rotating disk 1 in this embodiment includes a first mounting plate 11 and a second mounting plate 12, which are parallel to each other. The centrifugal structure includes a number of guide vanes 3, and each guide vane 3 is arranged between the first mounting plate 11 and the second mounting plate 12. The feed inlet 112 is arranged at the center of the first mounting plate 11, and one end of each guide vane 3 is connected to the feed inlet 112. The design of the guide vanes 3 enables the slurry entering the rotating disk 1 through the feed inlet 112 to perform centrifugal motion, providing power for the flow of the slurry.

[0033] In this embodiment, several first compound leaves 111 are arranged on the side of the first mounting plate 11 away from the second mounting plate 12. Each first compound leaf 111 is evenly distributed along the central axis of the feed inlet 112. Several second compound leaves 21 are arranged on the side of the limit cover 2 away from the rotating disk 1. The second compound leaves 21 are evenly distributed along the central axis of the feed inlet 112. Flow guiding inclined surfaces 1111 are provided on both the first compound leaves 111 and the second compound leaves 21. The design of the first compound leaves 111 and the second compound leaves 21 is to increase the stirring area, so that the driving slurry flows faster and the slurry pump has more power.

[0034] In this embodiment, each first sliding column 121 is integrally formed with the mounting groove 13, and each second sliding column 51 is integrally formed with the connecting disk 5. The anti-corrosion coating is composed of epoxy resin anti-corrosion paint. The integrally formed design reduces the installation links and lowers the production cost and processing cost.

[0035] The normal working process of the present utility model: The slurry enters the rotating disk 1 from the feed inlet 112. As the rotating disk 1 rotates, it drives the slurry to do centrifugal motion, completing the transportation of the slurry in the slurry pump. When the impeller is stuck and cannot rotate, since the connecting disk 5 is threadedly connected to the output shaft of the motor, the rotation of the motor causes the connecting disk 5 to move away from the motor until it disengages from the output shaft of the motor, so that the rotation of the output shaft of the motor cannot normally drive the connecting disk 5 to rotate, reducing the risk of the motor being burned out.

[0036] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An anti-corrosion impeller for a slurry pump, comprising a rotating disc (1), characterized in that a feed inlet (112) is provided on the rotating disc (1), a centrifugal structure for pouring the slurry and slag entering from the feed inlet (112) out from the side of the rotating disc (1) is provided inside the rotating disc (1), a connecting disc (5) is provided on one side of the rotating disc (1) away from the feed inlet (112), a sliding structure for enabling the connecting disc (5) to slide relative to the rotating disc (1) is provided inside the rotating disc (1), a connecting member (4) is provided at the end of the connecting disc (5) away from the rotating disc (1), a threaded hole (41) for threadedly connecting with the output shaft of the motor is provided inside the connecting member (4), a limiting structure for keeping the connecting disc (5) and the rotating disc (1) in a separated state after the connecting disc (5) disengages from the output shaft of the motor is provided between the rotating disc (1) and the connecting disc (5), and anti-corrosion coatings are provided on the outer surfaces of the rotating disc (1) and the connecting disc (5).

2. The anti-corrosion impeller of a slurry pump according to claim 1, characterized in that, An installation groove (13) is provided on one side of the rotating disc (1) away from the feed inlet (112), the installation groove (13) is of a cylindrical structure, a limiting cover (2) is provided at the notch of the installation groove (13), the limiting cover (2) is threadedly connected with the installation groove (13), a connecting member (4) is fixed on the connecting disc (5), the threaded hole (41) is provided inside the connecting member (4), and an installation hole (22) is provided on the limiting cover (2), and the connecting member (4) passes through the installation hole (22).

3. The anti-corrosion impeller of a slurry pump according to claim 2, characterized in that, The sliding structure comprises a plurality of first sliding columns (121) fixedly arranged in the installation groove (13), sliding grooves (122) are provided inside the first sliding columns (121), a plurality of second sliding columns (51) are fixed on the connecting disc (5), the second sliding columns (51) correspond to the sliding grooves (122) one by one, and the second sliding columns (51) are slidably connected with the sliding grooves (122).

4. The anti-corrosion impeller of a slurry pump according to claim 3, wherein The limiting structure comprises a limiting tension spring (6) arranged in the sliding groove (122), one end of the limiting tension spring (6) is fixedly connected with the bottom of the sliding groove (122), and the other end of the limiting tension spring (6) is fixedly connected with the second sliding column (51).

5. The anti-corrosion impeller of a slurry pump according to claim 4, characterized in that, Each of the first sliding columns (121) is integrally formed with the installation groove (13), each of the second sliding columns (51) is integrally formed with the connecting disc (5), and the anti-corrosion coating is composed of epoxy resin anti-corrosion paint.

6. The anti-corrosion impeller of a slurry pump according to claim 4, characterized in that, The rotating disc (1) comprises a first installation plate (11) and a second installation plate (12) that are parallel to each other, the centrifugal structure comprises a plurality of guide vanes (3) arranged, each of the guide vanes (3) is arranged between the first installation plate (11) and the second installation plate (12), the feed inlet (112) is arranged at the center of the first installation plate (11), and one end of each of the guide vanes (3) is connected with the feed inlet (112).

7. The anti-corrosion impeller of a slurry pump according to claim 6, characterized in that, On the side of the first mounting plate (11) away from the second mounting plate (12), there are a number of first compound leaves (111), and each of the first compound leaves (111) is evenly distributed along the central axis of the feed inlet (112). On the side of the limit cover (2) away from the rotating disk (1), there are a number of second compound leaves (21), and the second compound leaves (21) are evenly distributed along the central axis of the feed inlet (112). Flow guiding inclined surfaces (1111) are provided on both the first compound leaves (111) and the second compound leaves (21).

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