Impeller and centrifugal pump for high-lift soil dressing spray-seeding machine

Abstract

The utility model relates to the technical field of spray-seeding machines, in particular to an impeller and centrifugal pump for a high-lift soil dressing spray-seeding machine, which comprises a wheel disc, a plurality of straight blades and a plurality of arc-shaped blades, a shaft seat is integrally formed at the center of the front side surface of the wheel disc, and a shaft hole is formed in the shaft seat; the straight blades are radially and evenly welded to the front side face of the wheel disc at intervals, the arc-shaped blades are symmetrically welded to the rear side face of the wheel disc, the arc-shaped blades are radially arranged from the center of the wheel disc to the outside, and the inner ends of the arc-shaped blades are all provided with lengthened blades. The side faces of the lengthened blades are in tangent transition with the arc faces of the inner ends of the corresponding arc-shaped blades. According to the utility model, the purpose of improving the lift of the spray-seeding machine can be achieved with low cost and high efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to a spray seeding machine technical field, concretely relates to a high-lift guest soil spray seeding machine impeller and centrifugal pump. BACKGROUND

[0002] The spray seeding machine generally refers to the slope greening equipment, and the slope greening equipment is a kind of mechanical equipment for realizing slope greening, mainly including dry spray machine and wet spray machine etc., by spraying mixture (such as guest soil, seed, fertilizer etc.) to slope surface, the soil layer suitable for plant growth is formed, so as to realize the purpose of slope greening and protection.The structure of impeller directly affects the lift of spray seeding machine, and specifically the size of impeller diameter and the arrangement of blade directly affect the size of lift.

[0003] In prior art, the measure of increasing the size of centrifugal pump lift is to increase the diameter of impeller, this way of increasing lift will cause the reduction of mechanical efficiency on the one hand, and the production cost is significantly improved on the other hand, therefore, design a kind of high-lift guest soil spray seeding machine impeller can solve the above problems while ensuring the increase of lift. SUMMARY

[0004] To solve the problems in the background art, the utility model provides a kind of high-lift guest soil spray seeding machine impeller and centrifugal pump, the utility model can realize the purpose of improving the lift of spray seeding machine with low cost and high efficiency.

[0005] To solve the above problems, the utility model adopts the following technical scheme: a kind of high-lift guest soil spray seeding machine impeller, including wheel disc, multiple straight strip blades and multiple arc blades, the center of the front side of the wheel disc is integrally formed with shaft seat, the shaft seat is provided with shaft hole, multiple the straight strip blades are evenly spaced and welded and arranged on the front side of the wheel disc in radial shape, multiple the arc blades are symmetrically welded and arranged on the rear side of the wheel disc, and multiple the arc blades are arranged in radial shape from the center of the wheel disc, the inner end of multiple the arc blades is provided with lengthened blade, the side surface of the lengthened blade is tangent to the inner end arc surface of corresponding the arc blade.

[0006] Further, the arc blade includes arc blade plate and arc flange, the arc blade plate is welded on the rear side of the wheel disc, the arc flange is connected to the end face of the arc blade plate away from the wheel disc along the length direction of the arc blade plate, and the width of the arc flange is greater than the thickness of the arc blade plate.

[0007] Further, the width of the arc flange is gradually expanded from the center of the wheel disc to the edge of the wheel disc, and the outer end surface of the arc flange is flush with the edge surface of the wheel disc.

[0008] Further, the height of the arc-shaped blade gradually decreases from the center of the wheel disc to the edge of the wheel disc.

[0009] Further, the straight strip blade is in rectangular strip structure, the inner end of the straight strip blade is in gap cooperation with the shaft seat, and the outer end surface of the straight strip blade is flush with the edge surface of the wheel disc.

[0010] Further, the rear surface of the wheel disc is formed with an outward convex arc-shaped protrusion at the position corresponding to the shaft seat, and the arc surface of the arc-shaped protrusion is in tangent cooperation with the rear surface of the wheel disc.

[0011] Further, the shaft hole is a circular blind hole.

[0012] A centrifugal pump comprises a pump shell, a connecting piece and the high-lift soil-spraying machine impeller.

[0013] Further, the connecting piece comprises a rotating shaft, a flange, a magnetic mirror, a moving disc, an armature assembly, a flywheel and a flywheel shell which are sequentially sleeved on the rotating shaft, one end of the rotating shaft penetrates out of the flange, the other end of the rotating shaft penetrates out of the flywheel shell, the flange is fixed on the opening side of the flywheel shell through a plurality of screws, the magnetic mirror, the moving disc, the armature assembly and the flywheel are arranged in the flywheel shell, the magnetic mirror is fixed on the flange through a plurality of screws, and the armature assembly is fixed on the flywheel through a plurality of internal hexagonal screws.

[0014] Further, the flange is provided with a first bearing and a hole clamping spring, the magnetic mirror is provided with an adjusting sleeve and an adjusting pad, and the moving disc and the armature assembly are provided with a second bearing and a shaft clamping spring.

[0015] The centrifugal pump has the advantages that: the cooperation of the straight strip blade and the arc-shaped blade and the cooperation of the arc-shaped blade and the lengthened blade can significantly improve the stability and fullness of the pumping flow, improve the mechanical efficiency of the centrifugal pump, the structure of the device is relatively simple, the design cost is effectively controlled, compared with the traditional impeller structure, the production cost is reduced and the mechanical energy conversion efficiency is improved while the high lift is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] The centrifugal pump will be further described below in combination with the drawings and embodiments.

[0017] Figure 1 Fig. 1 is a structural schematic view of the centrifugal pump;

[0018] Figure 2 Fig. 4 is an installation structural schematic view of the straight strip blade;

[0019] Figure 3 This is a schematic diagram of the installation structure of the curved blade;

[0020] Figure 4 This is a partial structural diagram of a centrifugal pump.

[0021] Figure 5 This is a structural schematic diagram of the connector.

[0022] 1. Wheel; 2. Straight blade; 3. Curved blade; 4. Shaft seat; 5. Shaft hole; 6. Lengthened blade; 7. Curved blade plate; 8. Curved flange; 9. Curved protrusion; 10. Pump casing; 11. Connecting parts; 12. Rotating shaft; 13. Flange; 14. Magnetic mirror; 15. Moving disc; 16. Armature assembly; 17. Flywheel; 18. Flywheel shell; 19. First bearing; 20. Hole retaining ring; 21. Adjusting sleeve; 22. Adjusting shim; 23. Second bearing; 24. Shaft retaining ring. Detailed Implementation

[0023] 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.

[0024] This invention, through the combination of straight blades 2 and curved blades 3, and the combination of curved blades 3 and elongated blades 6, significantly improves the stability and sufficiency of pumping flow, and enhances the mechanical efficiency of the centrifugal pump. Due to the relatively simple structure of this device, design costs are effectively controlled. Compared to traditional impeller structures, it ensures high head while reducing production costs and improving mechanical energy conversion efficiency.

[0025] Specifically, such as Figures 1 to 5 As shown, an impeller for a high-lift hydroseeding machine includes a disc 1, multiple straight blades 2, and multiple curved blades 3. A shaft seat 4 is formed at the center of the front side of the disc 1, and a shaft hole 5 is provided on the shaft seat 4. The multiple straight blades 2 are radially and evenly spaced and welded on the front side of the disc 1. The multiple curved blades 3 are centrally symmetrically welded on the rear side of the disc 1, and the multiple curved blades 3 are arranged radially outward from the center of the disc 1. Each of the multiple curved blades 3 has an elongated blade 6 at its inner end, and the side of the elongated blade 6 is tangentially transitioned to the inner curved surface of the corresponding curved blade 3.

[0026] Specifically, the number of the straight strip blades 2 is 6-10, preferably, the number of the straight strip blades 2 is 8; the number of the arc-shaped blades 3 is 3-5, preferably, the number of the arc-shaped blades 3 is 4.

[0027] Further, the arc-shaped blade 3 comprises an arc-shaped blade plate 7 and an arc-shaped flange 8, the arc-shaped blade plate 7 is welded on the rear side of the wheel disc 1, the arc-shaped flange 8 is connected on the end face of the arc-shaped blade plate 7 away from the wheel disc 1 along the length direction of the arc-shaped blade plate 7, and the width of the arc-shaped flange 8 is greater than the thickness of the arc-shaped blade plate 7. By setting the arc-shaped flange 8, the centrifugal force can be further increased, thereby increasing the lift.

[0028] Further, the width of the arc-shaped flange 8 is gradually expanded from the center of the wheel disc 1 to the edge of the wheel disc 1, and the outer end face of the arc-shaped flange 8 is flush with the edge face of the wheel disc 1.

[0029] Further, the height of the arc-shaped blade plate 7 gradually decreases from the center of the wheel disc 1 to the edge of the wheel disc 1.

[0030] Further, the straight strip blade 2 is a rectangular strip structure, the inner end of the straight strip blade 2 is gap-fitted with the shaft seat 4, and the outer end face of the straight strip blade 2 is flush with the edge face of the wheel disc 1.

[0031] Further, the rear side of the wheel disc 1 forms an outward convex arc-shaped protrusion 9 corresponding to the position of the shaft seat 4, and the circular arc face of the arc-shaped protrusion 9 is tangentially fitted with the rear side of the wheel disc 1. By setting the smooth transition arc-shaped protrusion 9, the stability of the water flow can be ensured, and the mud is prevented from entering the connection between the impeller and the shaft to affect the disassembly.

[0032] Further, the shaft hole 5 is a circular blind hole.

[0033] A centrifugal pump comprises a pump shell 10, a connecting piece 11, and a high-lift soil spraying machine impeller, the high-lift soil spraying machine impeller is installed inside the pump shell 10 through the connecting piece 11.

[0034] Further, the connecting piece comprises a rotating shaft 12, a flange 13, a magnetic mirror 14, a moving disc 15, an armature assembly 16, a flywheel 17 and a flywheel dished part 18 which are sequentially sleeved on the rotating shaft 12, one end of the rotating shaft 12 penetrates through the flange 13, the other end of the rotating shaft 12 penetrates through the flywheel dished part 18, the flange 13 is fixed on the opening side of the flywheel dished part 18 through a plurality of screws, the magnetic mirror 14, the moving disc 15, the armature assembly 16 and the flywheel 17 are all arranged in the flywheel dished part 18, the magnetic mirror 14 is fixed on the flange 13 through a plurality of screws, and the armature assembly 16 is fixed on the flywheel 17 through a plurality of internal hexagonal screws.

[0035] Further, the flange 13 is internally provided with a first bearing 19 and a hole clamping spring 20, the magnetic mirror 14 is internally provided with an adjusting sleeve 21 and an adjusting pad 22, and the moving disc 15 and the armature assembly 16 are provided with a second bearing 23 and a shaft clamping spring 24.

[0036] The straight blade 2 cooperates with the arc-shaped blade 3, the arc-shaped blade 3 cooperates with the lengthened blade 6, and the arc-shaped leaf plate 7 cooperates with the arc-shaped flanging 8, so that the stability of water flow of the centrifugal pump is enhanced, the centrifugal force is obviously increased, the mechanical efficiency of the centrifugal pump is improved, the structure of the device is relatively simple, the design cost is effectively controlled, compared with the traditional impeller structure, the production cost is reduced and the mechanical energy conversion efficiency is improved while the high lift is ensured.

[0037] The above only describes preferred embodiments of the utility model and is not used to limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A high-lift mulch sprayer impeller, characterized by: The application relates to a high-lift impeller for a high-lift soil spraying machine, which comprises a wheel disc (1), a plurality of straight strip blades (2) and a plurality of arc-shaped blades (3), a shaft seat (4) is formed at the center of the front side of the wheel disc (1), a shaft hole (5) is formed in the shaft seat (4), the plurality of straight strip blades (2) are evenly and radially welded on the front side of the wheel disc (1), the plurality of arc-shaped blades (3) are symmetrically welded on the back side of the wheel disc (1), the plurality of arc-shaped blades (3) are arranged radially from the center of the wheel disc (1) to the outside, the inner end of each of the plurality of arc-shaped blades (3) is provided with an elongated blade (6), and the side surface of the elongated blade (6) is tangent to the inner end arc surface of the corresponding arc-shaped blade (3).

2. The impeller of claim 1, wherein: The arc-shaped blade (3) comprises an arc-shaped blade plate (7) and an arc-shaped flange (8), the arc-shaped blade plate (7) is welded on the back side of the wheel disc (1), the arc-shaped flange (8) is connected to the end surface of the arc-shaped blade plate (7) away from the wheel disc (1) along the length direction of the arc-shaped blade plate (7), and the width of the arc-shaped flange (8) is greater than the thickness of the arc-shaped blade plate (7).

3. The impeller of claim 2, wherein: The width of the arc-shaped flange (8) is gradually increased from the center of the wheel disc (1) to the edge of the wheel disc (1), and the outer end surface of the arc-shaped flange (8) is flush with the edge surface of the wheel disc (1).

4. The impeller of claim 2, wherein: The height of the arc-shaped blade plate (7) is gradually reduced from the center of the wheel disc (1) to the edge of the wheel disc (1).

5. The impeller of claim 1, wherein: The straight strip blade (2) is a rectangular strip structure, the inner end of the straight strip blade (2) is in clearance fit with the shaft seat (4), and the outer end surface of the straight strip blade (2) is flush with the edge surface of the wheel disc (1).

6. The impeller of claim 1, wherein: The back side of the wheel disc (1) is formed with an outward convex arc-shaped protrusion (9) at the position corresponding to the shaft seat (4), and the arc surface of the arc-shaped protrusion (9) is tangent to the back side of the wheel disc (1).

7. The impeller of claim 1, wherein: The shaft hole (5) is a circular blind hole.

8. A centrifugal pump characterized by: The application relates to a high-lift impeller for a high-lift soil spraying machine, which comprises a wheel disc (1), a plurality of straight strip blades (2) and a plurality of arc-shaped blades (3), a shaft seat (4) is formed at the center of the front side of the wheel disc (1), a shaft hole (5) is formed in the shaft seat (4), the plurality of straight strip blades (2) are evenly and radially welded on the front side of the wheel disc (1), the plurality of arc-shaped blades (3) are symmetrically welded on the back side of the wheel disc (1), the plurality of arc-shaped blades (3) are arranged radially from the center of the wheel disc (1) to the outside, the inner end of each of the plurality of arc-shaped blades (3) is provided with an elongated blade (6), and the side surface of the elongated blade (6) is tangent to the inner end arc surface of the corresponding arc-shaped blade (3).

9. A centrifugal pump according to claim 8, characterized in that: The application relates to a high-lift impeller for a high-lift soil spraying machine, which comprises a wheel disc (1), a plurality of straight strip blades (2) and a plurality of arc-shaped blades (3), a shaft seat (4) is formed at the center of the front side of the wheel disc (1), a shaft hole (5) is formed in the shaft seat (4), the plurality of straight strip blades (2) are evenly and radially welded on the front side of the wheel disc (1), the plurality of arc-shaped blades (3) are symmetrically welded on the back side of the wheel disc (1), the plurality of arc-shaped blades (3) are arranged radially from the center of the wheel disc (1) to the outside, the inner end of each of the plurality of arc-shaped blades (3) is provided with an elongated blade (6), and the side surface of the elongated blade (6) is tangent to the inner end arc surface of the corresponding arc-shaped blade (3).

10. A centrifugal pump according to claim 9, characterized in that: The flange (13) is provided with a first bearing (19) and a hole clamping spring (20), the magnetic mirror (14) is provided with an adjusting sleeve (21) and an adjusting pad (22), and the moving disc (15) and the armature assembly (16) are provided with a second bearing (23) and a shaft clamping spring (24).

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