Detection device for slurry pump

Abstract

The utility model belongs to the technical field of slurry pump detection, and particularly relates to a detection device for a slurry pump, which comprises a detection table for detecting a volute of the slurry pump, the bottom of the detection table is fixedly connected with a rotating motor, an output shaft of the rotating motor is fixedly connected with a rotating table, and the rotating table is fixedly connected with a rotating shaft of the rotating motor. The top of the rotating table is fixedly connected with a cross plate, and the cross plate is provided with a fixing mechanism used for clamping slurry pump volutes of different specifications and sizes. The slurry pump volute clamping and fixing device is reasonable in structural design, due to the fact that the distances among the four extrusion rods are adjustable, slurry pump volutes of different specifications and sizes can be clamped and fixed for use, the use range of the device is widened, meanwhile, the annular slurry pump volute can be effectively and firmly clamped and fixed, and the machining efficiency is improved. The influence of deviation and shaking on the precision of later-stage compression resistance detection is avoided, and the roundness of the extruded slurry pump volute can be detected, so that whether the compression resistance of the volute is qualified or not is judged.

Description

Technical Field

[0001] The utility model relates to the technical field of slurry pump detection, in particular to a detection device for a slurry pump. Background Technique

[0002] When a slurry pump is working, under the action of centrifugal force, the liquid is thrown from the center of the impeller to the outer edge and obtains energy, leaving the outer edge of the impeller at a high speed and entering the volute. In the volute, the liquid decelerates due to the gradually expanding flow channel, and part of the kinetic energy is converted into static pressure energy. Finally, it flows into the discharge pipe at a relatively high pressure and is sent to the required place. As a flow-through component of the slurry pump, the volute has high requirements for impact resistance, abrasion resistance and corrosion resistance. Therefore, when producing the volute, it is necessary to detect the impact resistance of the volute.

[0003] However, when detecting the volute of a slurry pump in the related art, it is inconvenient to effectively fix the volutes of slurry pumps with different specifications and sizes. As a result, it is inconvenient to detect and use the volutes of slurry pumps with different specifications and sizes, reducing the scope of use of the detection device. At the same time, because it is not firmly fixed, the volute of the slurry pump is prone to deviation and shaking, reducing the accuracy of the impact resistance detection. Therefore, we propose a detection device for a slurry pump to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to solve the above-mentioned disadvantages and propose a detection device for a slurry pump.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A detection device for a slurry pump includes a detection table for detecting the volute of the slurry pump. A rotating motor is fixedly connected to the bottom of the detection table. A rotating table is fixedly connected to the output shaft of the rotating motor. A cross plate is fixedly connected to the top of the rotating table. A fixing mechanism for clamping the volutes of slurry pumps with different specifications and sizes is arranged on the cross plate. A left support plate and a right support plate are fixedly connected to the top of the detection table. A roundness detection mechanism is arranged on the left support plate, and an extrusion mechanism is arranged on the right support plate.

[0007] Preferably, a driving cavity and four sliding grooves are formed in the cross plate. The fixing mechanism includes a driving shaft rotatably connected to the top of the cross plate and a threaded rod rotatably connected between the sliding groove and the driving cavity. A driving bevel gear is fixedly connected to the bottom end of the driving shaft. Driven bevel gears are fixedly connected to one ends of the four threaded rods close to each other. The driving bevel gear meshes with the four driven bevel gears. Moving rods are threadedly sleeved on the outer sides of the four threaded rods. Extrusion rods are fixedly connected to one ends of the four moving rods away from each other.

[0008] Preferably, the top end of the drive shaft extends above the cross plate and is fixedly connected with a hand wheel.

[0009] Preferably, limiting grooves are formed in the inner walls of the front and rear sides of the sliding groove, limiting blocks are slidably sleeved in the limiting grooves, and the two limiting blocks are respectively fixedly connected to the front and rear sides of the moving rod.

[0010] Preferably, the extrusion mechanism includes a right air cylinder fixedly connected to one side of the right support plate, a right pressure sensor is fixedly connected to the output shaft of the right air cylinder, and an extrusion plate is fixedly connected to one side of the right pressure sensor.

[0011] Preferably, the roundness detection mechanism includes a left air cylinder fixedly connected to one side of the left support plate, and a left pressure sensor is fixedly connected to the output shaft of the left air cylinder.

[0012] Preferably, a controller is fixedly connected to the top of the left support plate, and the left air cylinder and the left pressure sensor are both electrically connected to the controller.

[0013] Preferably, an annular groove is formed in the top of the detection table, a plurality of sliding rods are slidably sleeved in the annular groove, and the plurality of sliding rods are all fixedly connected to the bottom of the rotating table.

[0014] In the utility model, for a detection device for a slurry pump, the volute of the slurry pump is placed on the top of the rotating table. By rotating the drive shaft and the driving bevel gear through the hand wheel, the driving bevel gear drives the rotation of the four driven bevel gears and the threaded rods. Since the driving bevel gear drives the two driven bevel gears and the threaded rods on a straight line to rotate in the opposite direction, the rotation of the four threaded rods drives the synchronous outward movement of the four moving rods. The four moving rods drive the four extrusion rods to move outward and firmly abut against the inner side of the volute of the slurry pump. Since the distance between the four extrusion rods is adjustable, the volutes of slurry pumps of different sizes can be clamped and fixed for use. And because the four extrusion rods move outward synchronously, the purpose of centering the volute of the slurry pump can be achieved, so that the volute of the slurry pump can rotate coaxially with the rotating table.

[0015] In the present utility model, for a detection device used for a slurry pump, after being fixed, the right cylinder is started. The right cylinder drives the leftward movement of the right pressure sensor and the extrusion plate and abuts against one side of the volute of the slurry pump. Continuing to apply pressure, when the value of the right pressure sensor reaches the preset value, after the extrusion is completed, the right cylinder is started in the reverse direction to retract the extrusion plate. Then, the left cylinder is started. The left cylinder drives the left pressure sensor to abut against the other side of the volute of the slurry pump. At this time, the left pressure sensor has a certain value. The rotation motor is started. The rotation motor drives the rotation of the rotating table, the cross plate and the volute of the slurry pump. Observe the value of the left pressure sensor displayed on the controller. When the volute does not deform, the roundness of the volute is relatively round, and the value displayed by the left pressure sensor basically does not change, indicating that the compressive performance of the slurry pump volute is good. On the contrary, when the volute deforms due to extrusion, the roundness of the volute will change. When the value displayed by the left pressure sensor changes significantly, it indicates that the compressive performance of the volute is poor;

[0016] The structure of the present utility model is reasonably designed. Since the distance between the four extrusion rods is adjustable, the volutes of slurry pumps with different specifications and sizes can be clamped and fixed for use, improving the application range of the device. At the same time, the annular volute of the slurry pump can be effectively clamped and fixed firmly, avoiding offset and shaking and affecting the accuracy of the subsequent compressive test. Moreover, the roundness of the volute of the slurry pump after extrusion can be detected to judge whether the compressive performance of the volute is qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the first perspective three-dimensional view of a detection device for a slurry pump proposed by the present utility model;

[0018] Figure 2 is the second perspective three-dimensional view of a detection device for a slurry pump proposed by the present utility model;

[0019] Figure 3 is the cross-sectional view of a detection device for a slurry pump proposed by the present utility model;

[0020] Figure 4 is the top cross-sectional view of the cross plate of a detection device for a slurry pump proposed by the present utility model;

[0021] Figure 5 is Figure 4 the structural schematic diagram of part A in

[0022] In the figure: 1. Detection table; 2. Rotating table; 3. Cross plate; 4. Handwheel; 5. Moving rod; 6. Extrusion rod; 7. Left support plate; 8. Left cylinder; 9. Left pressure sensor; 10. Controller; 11. Right support plate; 12. Right cylinder; 13. Right pressure sensor; 14. Extrusion plate; 15. Rotating motor; 16. Driving shaft; 17. Slide bar; 18. Driving cavity; 19. Driven bevel gear; 20. Driving bevel gear; 21. Chute; 22. Limiting groove; 23. Limiting block; 24. Threaded rod. Specific implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0024] Refer to Figures 1-5 , a detection device for a slurry pump, including a detection table 1 for detecting the volute of the slurry pump. A rotating motor 15 is fixedly connected to the bottom of the detection table 1. A rotating table 2 is fixedly connected to the output shaft of the rotating motor 15. A cross plate 3 is fixedly connected to the top of the rotating table 2. A fixing mechanism for clamping volutes of slurry pumps of different specifications and sizes is arranged on the cross plate 3. A left support plate 7 and a right support plate 11 are fixedly connected to the top of the detection table 1. A roundness detection mechanism is arranged on the left support plate 7, and an extrusion mechanism is arranged on the right support plate 11.

[0025] Further, a driving cavity 18 and four chutes 21 are opened in the cross plate 3. The fixing mechanism includes a driving shaft 16 rotatably connected to the top of the cross plate 3 and a threaded rod 24 rotatably connected between the chute 21 and the driving cavity 18. A driving bevel gear 20 is fixedly connected to the bottom end of the driving shaft 16. Driven bevel gears 19 are fixedly connected to one ends of the four threaded rods 24 close to each other. The driving bevel gear 20 meshes with the four driven bevel gears 19. Moving rods 5 are all threadedly sleeved on the outer sides of the four threaded rods 24. Extrusion rods 6 are fixedly connected to one ends of the four moving rods 5 away from each other. Place the volute of the slurry pump on the top of the rotating table 2. Rotate the driving shaft 16 and the driving bevel gear 20 through the handwheel 4. The driving bevel gear 20 drives the rotation of the four driven bevel gears 19 and the threaded rods 24. Since the driving bevel gear 20 drives two driven bevel gears 19 and the threaded rods 24 on a straight line to rotate in opposite directions, the rotation of the four threaded rods 24 drives the synchronous outward movement of the four moving rods 5. The four moving rods 5 drive the outward movement of the four extrusion rods 6 and firmly abut against the inner side of the volute of the slurry pump. Since the distance between the four extrusion rods 6 is adjustable, the volutes of slurry pumps of different sizes can be clamped and fixed, and since the four extrusion rods 6 move outward synchronously, the purpose of centering the volute of the slurry pump can be achieved.

[0026] Furthermore, the top end of the drive shaft 16 extends above the cross plate 3 and is fixedly connected with a hand wheel 4, which is beneficial to rotating the drive shaft 16.

[0027] Furthermore, limiting grooves 22 are formed in the inner walls of the front and rear sides of the sliding groove 21, and limiting blocks 23 are slidably sleeved in the limiting grooves 22. The two limiting blocks 23 are respectively fixedly connected to the front and rear sides of the moving rod 5, so as to guide and limit the moving rod 5 and prevent it from rotating together with the threaded rod 24.

[0028] Furthermore, the extrusion mechanism includes a right air cylinder 12 fixedly connected to one side of the right support plate 11. A right pressure sensor 13 is fixedly connected to the output shaft of the right air cylinder 12. An extrusion plate 14 is fixedly connected to one side of the right pressure sensor 13. The roundness detection mechanism includes a left air cylinder 8 fixedly connected to one side of the left support plate 7. A left pressure sensor 9 is fixedly connected to the output shaft of the left air cylinder 8. A controller 10 is fixedly connected to the top of the left support plate 7. The left air cylinder 8 and the left pressure sensor 9 are both electrically connected to the controller 10.

[0029] The working principle during detection is as follows: The right air cylinder 12 drives the leftward movement of the right pressure sensor 13 and the extrusion plate 14 to abut against one side of the volute of the slurry pump. Continuing to apply pressure, when the value of the right pressure sensor 13 reaches a preset value (when the volute of the slurry pump can withstand this force without deformation, it indicates that the compressive performance of the volute of the slurry pump is good). After the extrusion is completed, the right air cylinder 12 is started in the reverse direction to retract the extrusion plate 14. Then, the left air cylinder 8 is started. The left air cylinder 8 drives the left pressure sensor 9 to abut against the other side of the volute of the slurry pump. At this time, the left pressure sensor 9 has a certain value. The rotary motor 15 is started. The rotary motor 15 drives the rotation of the rotary table 2, the cross plate 3 and the volute of the slurry pump. Observe the value of the left pressure sensor 9 displayed on the controller 10. When the volute does not deform, the roundness of the volute is relatively round, and the value displayed by the left pressure sensor 9 basically does not change, indicating that the compressive performance of the volute of the slurry pump is good. On the contrary, when the volute deforms due to extrusion, the roundness of the volute will change. When the value displayed by the left pressure sensor 9 changes significantly, it indicates that the compressive performance of the volute is poor.

[0030] Furthermore, an annular groove is formed in the top of the detection table 1, and a plurality of sliding rods 17 are slidably sleeved in the annular groove. The plurality of sliding rods 17 are all fixedly connected to the bottom of the rotary table 2, so as to guide and support the inside of the rotary table 2 and make its rotation smoother and more stable.

[0031] In the present utility model, during use, the volute of the slurry pump is placed on the top of the rotating table 2. The driving shaft 16 and the driving bevel gear 20 are rotated by the handwheel 4. The driving bevel gear 20 drives the rotation of the four driven bevel gears 19 and the threaded rods 24. Since the driving bevel gear 20 drives the two driven bevel gears 19 and the threaded rods 24 on a straight line to rotate in opposite directions, the rotation of the four threaded rods 24 drives the synchronous outward movement of the four moving rods 5. The four moving rods 5 drive the outward movement of the four pressing rods 6 and firmly abut against the inner side of the volute of the slurry pump. Since the distance between the four pressing rods 6 is adjustable, the volutes of slurry pumps of different sizes can be clamped and fixed for use. Moreover, since the four pressing rods 6 move outward synchronously, the purpose of centering the volute of the slurry pump can be achieved, enabling the volute of the slurry pump to rotate coaxially with the rotating table 2. After fixing, the right cylinder 12 is started. The right cylinder 12 drives the leftward movement of the right pressure sensor 13 and the pressing plate 14 and abuts against one side of the volute of the slurry pump. Continue to apply pressure. When the value of the right pressure sensor 13 reaches the preset value (when the volute of the slurry pump does not deform under this force, it indicates that the compressive performance of the volute of the slurry pump is good). After the pressing is completed, the right cylinder 12 is started in the reverse direction to retract the pressing plate 14. Then the left cylinder 8 is started. The left cylinder 8 drives the left pressure sensor 9 to abut against the other side of the volute of the slurry pump. At this time, the left pressure sensor 9 has a certain value. The rotation motor 15 is started. The rotation motor 15 drives the rotation of the rotating table 2, the cross plate 3 and the volute of the slurry pump. Observe the value of the left pressure sensor 9 displayed on the controller 10. When the volute does not deform, the roundness of the volute is relatively round, and the value displayed by the left pressure sensor 9 basically does not change, indicating that the compressive performance of the volute of the slurry pump is good. On the contrary, when the volute deforms due to extrusion, the roundness of the volute will change. When the value displayed by the left pressure sensor 9 changes significantly, it indicates that the compressive performance of the volute is poor.

Claims

1. A detection device for a slurry pump, characterized in that, It includes a detection platform (1) used for detecting the volute of a slurry pump. A rotary motor (15) is fixedly connected to the bottom of the detection platform (1). A rotary table (2) is fixedly connected to the output shaft of the rotary motor (15). A cross plate (3) is fixedly connected to the top of the rotary table (2). A fixing mechanism for clamping slurry pump volutes of different specifications and sizes is arranged on the cross plate (3). A left support plate (7) and a right support plate (11) are fixedly connected to the top of the detection platform (1). A roundness detection mechanism is arranged on the left support plate (7), and an extrusion mechanism is arranged on the right support plate (11).

2. The detection device for a slurry pump according to claim 1, wherein A driving cavity (18) and four sliding grooves (21) are formed in the cross plate (3). The fixing mechanism includes a driving shaft (16) rotatably connected to the top of the cross plate (3), and threaded rods (24) rotatably connected between the sliding grooves (21) and the driving cavity (18). A driving bevel gear (20) is fixedly connected to the bottom end of the driving shaft (16). Driven bevel gears (19) are fixedly connected to one ends of the four threaded rods (24) close to each other. The driving bevel gear (20) meshes with the four driven bevel gears (19). Moving rods (5) are threadedly sleeved on the outer sides of the four threaded rods (24). Extrusion rods (6) are fixedly connected to one ends of the four moving rods (5) away from each other.

3. The detection device for a slurry pump according to claim 2, characterized in that, The top end of the driving shaft (16) extends above the cross plate (3) and is fixedly connected to a hand wheel (4).

4. The detection device for a slurry pump according to claim 2, characterized in that, Limiting grooves (22) are formed in the front and rear inner walls of the sliding groove (21). Limiting blocks (23) are slidably sleeved in the limiting grooves (22). The two limiting blocks (23) are respectively fixedly connected to the front and rear sides of the moving rod (5).

5. The detection device for a slurry pump according to claim 1, characterized in that, The extrusion mechanism includes a right air cylinder (12) fixedly connected to one side of the right support plate (11). A right pressure sensor (13) is fixedly connected to the output shaft of the right air cylinder (12). An extrusion plate (14) is fixedly connected to one side of the right pressure sensor (13).

6. The detection device for a slurry pump according to claim 1, characterized in that, The roundness detection mechanism includes a left air cylinder (8) fixedly connected to one side of the left support plate (7). A left pressure sensor (9) is fixedly connected to the output shaft of the left air cylinder (8).

7. The detection device for a slurry pump according to claim 6, characterized in that, A controller (10) is fixedly connected to the top of the left support plate (7). The left air cylinder (8) and the left pressure sensor (9) are both electrically connected to the controller (10).

8. The detection device for a slurry pump according to claim 1, characterized in that, An annular groove is formed in the top of the detection platform (1). A plurality of sliding rods (17) are slidably sleeved in the annular groove. The plurality of sliding rods (17) are all fixedly connected to the bottom of the rotary table (2).

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