A front shroud for a slurry pump

Abstract

The utility model discloses a front guard plate of slurry pump relates to slurry pump technical field, including front guard plate body and driving gear, the outer surface of front guard plate body is provided with high chromium cast iron layer, and the outer surface of high chromium cast iron layer is provided with ceramic patch layer, is equipped with mounting hole on the front guard plate body, and the surface of front guard plate body is provided with the fixed frame in the upper middle part, is installed with servo motor on the fixed frame. The front guard plate of slurry pump, high chromium cast iron layer is integrated with front guard plate body by casting process, ceramic patch layer adopts high -strength ceramic material, and the even pasting of special adhesive of high temperature resistance, high strength is stuck on high chromium cast iron layer surface, when the slurry impact front guard plate body, through ceramic patch layer bears the scour of solid particle, and its high hardness characteristic can effectively resist the wear and tear, and through high chromium cast iron layer provides toughness support, prevents ceramic patch layer and cracks because of impact, thereby effectively protects front guard plate body, prolongs its life.

Description

Technical Field

[0001] This utility model relates to the field of slurry pump technology, specifically to a front guard plate for a slurry pump. Background Technology

[0002] Slurry pumps, as a type of machine that increases the energy of a solid-liquid mixture by utilizing centrifugal force (the rotation of the pump impeller), are widely used in industries such as mining, power plants, metallurgy, chemicals, building materials, and petroleum. Among these applications, the slurry pump front guard plate, as a protective component, plays a crucial role in the normal operation of the slurry pump.

[0003] For example, utility model application CN202122444513.X discloses a slurry pump with a front guide plate. This utility model can support the front guide plate during installation, preventing it from shaking, improving installation efficiency and safety, preventing water turbulence, reducing energy loss during water flow, and improving practicality. It can also reduce the impact force on the front guide plate, prevent large gaps between the front guide plate and the impeller, and reduce maintenance costs. However, its wear resistance is insufficient; high-speed scouring by solid particles can easily cause severe wear on the surface of the front guide plate, shortening its service life.

[0004] Therefore, in view of this, we studied and improved the existing structure and its shortcomings, and proposed a front guard plate for slurry pumps. Utility Model Content

[0005] The purpose of this utility model is to provide a front guard plate for a slurry pump to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a front guard plate for a slurry pump, comprising a front guard plate body and a drive gear. The outer surface of the front guard plate body is provided with a high-chromium cast iron layer, and the outer surface of the high-chromium cast iron layer is provided with a ceramic patch layer. The front guard plate body has mounting holes, and a fixing frame is provided at the upper center of the surface of the front guard plate body. A servo motor is mounted on the fixing frame, and the output end of the servo motor is connected to a reciprocating lead screw. A lead screw nut is connected to the outside of the reciprocating lead screw, and a moving block is provided outside the lead screw nut. The drive gear is sleeved on the outer front end of the reciprocating lead screw, and a driven gear is connected to the outside of the drive gear. A transmission shaft passes through the middle of the driven gear, and a transmission rod is connected to the rear end of the transmission shaft. A bearing is provided in the through hole at the upper center of the surface of the fixing frame.

[0007] Furthermore, the mounting holes are distributed in a ring at equal intervals about the center of the front guard plate body, and the fixing bracket has an L-shaped structure.

[0008] Furthermore, the reciprocating lead screw and the transmission rod are parallel to each other, and the cross section of the transmission rod has a cross structure.

[0009] Furthermore, the first transmission shaft, the first bearing, and the first transmission rod are arranged coaxially, with the first transmission shaft located in the middle of the first bearing.

[0010] Furthermore, a sliding cylinder is slidably connected to the outside of the transmission rod, and a bevel gear is sleeved on the outer right side of the sliding cylinder.

[0011] Furthermore, a second bevel gear is externally connected to the first bevel gear, and a second drive shaft passes through the middle of the second bevel gear.

[0012] Furthermore, a fan blade is mounted on the outside of the second transmission shaft, and the second transmission shaft and the moving block are rotatably connected. A second bearing is provided at the opening of the moving block, and the sliding cylinder is located in the middle of the second bearing.

[0013] This utility model provides a front guard plate for a slurry pump, which has the following beneficial effects:

[0014] 1. This utility model uses a servo motor to drive the reciprocating screw and the drive gear to rotate. The drive gear meshes with the driven gear to transmit power, causing the transmission shaft one, transmission rod, sliding cylinder, and bevel gear one to rotate. At the same time, bevel gear one meshes with bevel gear two to transmit power, causing the transmission shaft two and the fan blades to rotate and generate wind power to dissipate heat from the front guard plate body. Moreover, the screw nut moves axially along the reciprocating screw, driving the moving block to move synchronously, expanding the heat dissipation range and carrying away the heat from the front guard plate body and the slurry pump.

[0015] 2. The high-chromium cast iron layer of this utility model is integrally formed with the front guard plate body through a casting process. The ceramic patch layer is made of high-strength ceramic material and is uniformly bonded to the surface of the high-chromium cast iron layer with a special high-temperature resistant and high-strength adhesive. When slag impacts the front guard plate body, the ceramic patch layer withstands the scouring of solid particles. Its high hardness can effectively resist wear, and the high-chromium cast iron layer provides toughness support to prevent the ceramic patch layer from cracking due to impact, thereby effectively protecting the front guard plate body and extending its service life. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the front guard plate of a slurry pump according to the present invention;

[0017] Figure 2 This is a side view of the front guard plate of a slurry pump according to the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the transmission rod and sliding cylinder of the front guard plate of a slurry pump according to the present invention.

[0019] In the diagram: 1. Front guard plate body; 2. High-chromium cast iron layer; 3. Ceramic patch layer; 4. Mounting hole; 5. Fixing bracket; 6. Servo motor; 7. Reciprocating lead screw; 8. Lead screw nut; 9. Moving block; 10. Driving gear; 11. Driven gear; 12. Drive shaft one; 13. Bearing one; 14. Drive rod; 15. Sliding cylinder; 16. Bevel gear one; 17. Bevel gear two; 18. Drive shaft two; 19. Fan blade; 20. Bearing two. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] like Figures 1 to 3 As shown, a front guard plate for a slurry pump includes a front guard plate body 1 and a drive gear 10. A servo motor 6 is mounted on a fixed frame 5, and a reciprocating screw 7 is connected to the output end of the servo motor 6. A screw nut 8 is connected to the outside of the reciprocating screw 7, and a moving block 9 is provided outside the screw nut 8. The drive gear 10 is sleeved on the outer front end of the reciprocating screw 7, and a driven gear 11 is connected to the outside of the drive gear 10. A transmission shaft 12 passes through the middle of the driven gear 11, and a transmission rod 14 is connected to the rear end of the transmission shaft 12. A bearing 13 is provided in the through hole in the middle of the upper part of the surface of the fixed frame 5. The reciprocating screw 7 and the transmission rod 14 are connected to each other. The transmission rods 14 are parallel to each other and have a cross-shaped cross section. The transmission shaft 12, bearing 13 and transmission rod 14 are coaxially arranged. The transmission shaft 12 is located in the middle of bearing 13. A sliding cylinder 15 is slidably connected to the outside of the transmission rod 14. A bevel gear 16 is sleeved on the right side of the outside of the sliding cylinder 15. A bevel gear 17 is connected to the outside of the bevel gear 16. A transmission shaft 18 passes through the middle of the bevel gear 17. A fan blade 19 is installed on the outside of the transmission shaft 18. The transmission shaft 18 and the moving block 9 are rotatably connected. A bearing 20 is provided at the opening of the moving block 9. The sliding cylinder 15 is located in the middle of the bearing 20.

[0022] The specific operation is as follows: the servo motor 6 drives the reciprocating screw 7 and the drive gear 10 to rotate. The drive gear 10 meshes with the driven gear 11 to transmit power, causing the transmission shaft 12, transmission rod 14, sliding cylinder 15, and bevel gear 16 to rotate. At the same time, the bevel gear 16 meshes with the bevel gear 2 17 to transmit power, causing the transmission shaft 2 18 and fan blade 19 to rotate and generate wind power to dissipate heat from the front guard plate body 1. In addition, the screw nut 8 moves axially along the reciprocating screw 7, driving the moving block 9 to move synchronously, expanding the heat dissipation range and carrying away the heat from the front guard plate body 1 and the slurry pump.

[0023] like Figure 1 and Figure 2As shown, a high-chromium cast iron layer 2 is provided on the outer surface of the front guard plate body 1, and a ceramic patch layer 3 is provided on the outer surface of the high-chromium cast iron layer 2. Mounting holes 4 are provided on the front guard plate body 1, and a fixing bracket 5 is provided in the upper center of the surface of the front guard plate body 1. The mounting holes 4 are distributed in a ring at equal intervals about the center of the front guard plate body 1, and the fixing bracket 5 has an L-shaped structure.

[0024] The specific operation is as follows: the high-chromium cast iron layer 2 is integrally formed with the front guard plate body 1 through a casting process. The ceramic patch layer 3 is made of high-strength ceramic material and is uniformly bonded to the surface of the high-chromium cast iron layer 2 with a special adhesive that is resistant to high temperature and high strength. When slag impacts the front guard plate body 1, the ceramic patch layer 3 withstands the scouring of solid particles. Its high hardness can effectively resist wear. The high-chromium cast iron layer 2 provides toughness support to prevent the ceramic patch layer 3 from cracking due to impact, thereby effectively protecting the front guard plate body 1 and extending its service life.

[0025] In summary, when the front guard plate of this slurry pump is in use, the front guard plate body 1 is quickly connected to the pump body through the mounting hole 4. When the slurry impacts the front guard plate body 1, the ceramic patch layer 3 first bears the scouring of solid particles and effectively resists wear by utilizing its own high hardness characteristics. Secondly, the high chromium cast iron layer 2 provides toughness support and prevents the ceramic patch layer 3 from cracking due to impact. Through the joint protection of the front guard plate body 1, the service life is effectively extended.

[0026] Next, the servo motor 6 is started, which drives the reciprocating screw 7 and the drive gear 10 to rotate. The drive gear 10 meshes with the driven gear 11 to transmit power to the transmission shaft 12 and the transmission rod 14. The cross section structure of the transmission rod 14 drives the sliding cylinder 15 to rotate synchronously. The bevel gear 16 and bevel gear 17 outside the sliding cylinder 15 mesh to transmit power to the transmission shaft 18 to rotate, so that the fan blade 19 generates wind power to dissipate heat from the front guard plate body 1, avoid the material performance degradation caused by high temperature, effectively reduce the equipment failure rate, and extend the overall service life of the slurry pump.

[0027] At the same time, the moving block 9 follows the lead screw nut 8 to perform axial reciprocating motion along the reciprocating lead screw 7. Since the sliding cylinder 15 is set in the bearing 20 at the opening of the moving block 9 and is slidably connected to the transmission rod 14, it can realize the axial reciprocating motion while the fan blade 19 rotates, further expanding the heat dissipation range and improving the heat dissipation efficiency.

[0028] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A front guard plate for a slurry pump, comprising a front guard plate body (1) and a drive gear (10), characterized in that, The outer surface of the front guard plate body (1) is provided with a high-chromium cast iron layer (2), and the outer surface of the high-chromium cast iron layer (2) is provided with a ceramic patch layer (3). The front guard plate body (1) has mounting holes (4), and a fixing bracket (5) is provided at the upper center of the surface of the front guard plate body (1). A servo motor (6) is mounted on the fixing bracket (5), and the output end of the servo motor (6) is connected to a reciprocating lead screw (7). The reciprocating lead screw (7) is externally connected to... A lead screw nut (8) is provided on the outside of the lead screw nut (8), and a moving block (9) is provided on the outside of the lead screw (7). The driving gear (10) is sleeved on the front end of the reciprocating lead screw (7), and a driven gear (11) is connected to the outside of the driving gear (10). A transmission shaft (12) is passed through the middle of the driven gear (11), and a transmission rod (14) is connected to the rear end of the transmission shaft (12). A bearing (13) is provided in the through hole in the middle of the surface of the fixed frame (5).

2. The front guard plate of a slurry pump according to claim 1, characterized in that, The mounting holes (4) are distributed in a ring at equal intervals about the center of the front guard plate body (1), and the fixing bracket (5) has an L-shaped structure.

3. The front guard plate of a slurry pump according to claim 1, characterized in that, The reciprocating lead screw (7) and the transmission rod (14) are parallel to each other, and the cross section of the transmission rod (14) is a cross structure.

4. The front guard plate of a slurry pump according to claim 1, characterized in that, The drive shaft (12), bearing (13) and drive rod (14) are coaxially arranged, and the drive shaft (12) is located in the middle of the bearing (13).

5. The front guard plate of a slurry pump according to claim 1, characterized in that, The transmission rod (14) is slidably connected to a sliding cylinder (15), and a bevel gear (16) is sleeved on the outer right side of the sliding cylinder (15).

6. The front guard plate of a slurry pump according to claim 5, characterized in that, The bevel gear one (16) is externally connected to bevel gear two (17), and a transmission shaft two (18) passes through the middle of bevel gear two (17).

7. The front guard plate of a slurry pump according to claim 6, characterized in that, The drive shaft (18) is equipped with a fan blade (19) on its outside, and the drive shaft (18) and the moving block (9) are rotatably connected. The opening of the moving block (9) is provided with a bearing (20), and the sliding cylinder (15) is located in the middle of the bearing (20).

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