Device for preventing chute of centrifugal machine from shaking

Abstract

The utility model discloses a centrifuge sluice shaking prevention device, which comprises a connecting frame, a downward pressing part, a pressing wheel and a main machine, the downward pressing part is fixedly arranged above a socket of a centrifuge through the connecting frame, the connecting frame is fixedly arranged on the centrifuge, the pressing wheel is arranged on the downward pressing part, and the main machine is fixedly arranged on the connecting frame. The press-down part drives the press wheel to move vertically, the press wheel is arranged between the launder and the press-down part, and the main machine is connected with the press-down part and the centrifugal machine; according to the utility model, the work of manually pressing the launder when the small-caliber pipe is produced by a centrifugal machine is replaced, the pressing position is stable and controllable, the manual workload is reduced, the fine control is improved, the manual dangerous operation is avoided, and the pipe product quality is also improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting manufacturing technology, specifically to a device for preventing centrifuge flow channel vibration. Background Technology

[0002] During centrifugal casting of ductile iron pipes, molten iron flows through the trough to the bend of the trough and falls into the pipe mold. The molten iron is continuously poured into the rotating pipe mold evenly by the rotation of the pipe mold and the downward movement of the centrifuge, thus forming a centrifugal ductile iron pipe.

[0003] In the production of small-diameter ductile iron pipes, the continuous flow rate of molten iron is small. When pouring molten iron, the trough is set to be slender and there is no stable support structure in the pipe mold, which is prone to shaking. The shaking of the trough will cause molten iron to splash into the pipe mold in the middle of the trough, resulting in uneven distribution of molten iron in the pipe mold and greatly affecting the forming of the pipe body.

[0004] Currently, the flow channel is usually pressed manually with a steel pipe to prevent it from shaking. However, since the mold rotates and moves continuously during production, the position of the manual press also needs to be adjusted accordingly. In addition, the temperature of the molten iron is high, and the workers have to work in a poor working environment for a long time, which is both physically demanding and dangerous.

[0005] In view of the above-mentioned defects, the creator of this utility model has finally obtained this utility model after a long period of research and practice. Utility Model Content

[0006] To address the aforementioned technical deficiencies, the present invention provides a device for preventing vibration of the centrifuge's flow channel, comprising a connecting frame, a lowering part, a pressure roller, and a main unit. The lowering part is fixedly mounted above the centrifuge's inlet via the connecting frame, and the connecting frame is fixedly mounted on the centrifuge. The pressure roller is mounted on the lowering part, and the lowering part drives the pressure roller to move vertically. The pressure roller is positioned between the flow channel and the lowering part. The main unit is connected to both the lowering part and the centrifuge.

[0007] Preferably, the pressing part includes a pressing cylinder, an air source, an adjusting frame, and a connecting plate. The pressing cylinder is fixedly mounted on the connecting plate, and the adjusting frame is fixedly mounted on the telescopic rod of the pressing cylinder. The pressure roller is mounted on the adjusting frame. The connecting plate is connected to the connecting frame. The pressing cylinder is connected to the air source. The main unit is connected to the air source to control the extension and retraction operation of the telescopic rod on the pressing cylinder.

[0008] Preferably, the adjusting frame includes a first adjusting plate, which is configured as a U-shaped plate structure including a central connecting section and two side wing connecting sections. The two side wing connecting sections are perpendicularly connected to the two ends of the central connecting section. The pressure roller is cylindrical and is axially sleeved on a rotating shaft and can rotate freely along its own axis. The two ends of the rotating shaft are respectively fixed on the two side wing connecting sections. The axial direction of the pressure roller is perpendicular to the extension direction of the flow channel.

[0009] Preferably, the distance between the two side wing connecting sections is greater than the width of the flow channel.

[0010] Preferably, the lower edge height of the pressure roller is higher than the lower edge height of the side wing connecting section.

[0011] Preferably, the side wing connecting section is provided with a horizontally extending mounting groove, and mounting holes are provided on both sides of the mounting groove. Keyways are provided at both ends of the rotating shaft. The two ends of the rotating shaft are respectively located in the two mounting grooves of the side wing connecting section, and the key plate is fixedly located in the keyways at both ends of the rotating shaft by mounting bolts and the mounting holes.

[0012] Preferably, the adjusting frame further includes a second adjusting plate, on which a guide post is fixedly mounted. The extension direction of the guide post is consistent with the extension and retraction direction of the pressing cylinder. A guide sleeve is provided on the connecting plate, and the guide post is disposed inside the guide sleeve. The guide sleeve and the guide post are coaxially arranged. When the pressing cylinder drives the adjusting frame to move vertically, the guide post moves linearly along the axial direction inside the guide sleeve.

[0013] Preferably, the two guide pillars are symmetrically arranged on both sides of the downward pressure cylinder.

[0014] Preferably, a connecting rod is coaxially fixedly connected to the telescopic rod of the pressing cylinder, a first connecting hole is provided in the middle of the second adjusting plate, a second connecting hole is provided in the middle of the central connecting section of the first adjusting plate, the connecting rod is simultaneously disposed in the first connecting hole and the second connecting hole, and a limit ring is provided at one end of the connecting rod, and a locking nut is threaded to the other end, with the second adjusting plate and the central connecting section both disposed in the limit ring and the locking nut.

[0015] Preferably, an adjusting shim is also provided between the second adjusting plate and the central connecting section, the adjusting shim is provided with a third connecting hole, and the connecting rod is disposed in the third connecting hole.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model replaces the manual pressure trough work when producing small-diameter pipes by centrifuge, and the pressure position is stable and controllable, which reduces the manual workload and improves the precision control, avoids dangerous manual operations, and also improves the quality of pipe products. Attached Figure Description

[0017] Figure 1 This is a front view of the structure of the centrifuge anti-vibration device;

[0018] Figure 2 This is a structural side view of the device for preventing vibration of the centrifuge's anti-vibration trough;

[0019] Figure 3 This is a front view of the connection structure of the pressing part;

[0020] Figure 4 This is a side view of the connection structure of the first adjustment plate.

[0021] The numbers in the image represent:

[0022] 1-Connecting frame; 2-Pressing section; 3-Pressure roller; 4-Centrifuge; 5-Flow channel; 21-Pressing cylinder; 22-Adjusting frame; 23-Connecting plate; 24-Guide column; 25-Guide sleeve; 26-Connecting rod; 27-Limiting ring; 28-Locking nut; 29-Adjusting shim; 31-Rotating shaft; 221-First adjusting plate; 222-Central connecting section; 223-Side wing connecting section; 224-Mounting groove; 225-Mounting bolt; 226-Key plate; 227-Second adjusting plate. Detailed Implementation

[0023] The above-mentioned and other technical features and advantages of this utility model will be described in more detail below with reference to the accompanying drawings.

[0024] Example 1

[0025] like Figure 1 and Figure 2 As shown, Figure 1 This is a front view of the structure of the centrifuge anti-vibration device; Figure 2 This is a structural side view of the device for preventing vibration of the centrifuge's anti-vibration trough.

[0026] The centrifuge anti-vibration device of this utility model includes a connecting frame 1, a pressing part 2, a pressure roller 3, and a main unit. The pressing part 2 is fixedly installed above the inlet of the centrifuge 4 via the connecting frame 1. The connecting frame 1 is fixedly installed on the centrifuge 4. The pressure roller 3 is installed on the pressing part 2, and the pressing part 2 drives the pressure roller 3 to move vertically. The pressure roller 3 is installed between the flow channel 5 and the pressing part 2. The pressing part 2 drives the pressure roller 3 to move downward in a straight line to perform a pressing and stabilizing operation on the flow channel 5. The main unit is connected to the pressing part 2 and the centrifuge 4. The real-time operation of the centrifuge 4 controls the pressing part 2 to drive the pressure roller 3 to lift or press down.

[0027] Specifically, the pressing part 2 includes a pressing cylinder 21, an air source, an adjusting frame 22, and a connecting plate 23. The pressing cylinder 21 is fixedly mounted on the connecting plate 23, and the adjusting frame 22 is fixedly mounted on the telescopic rod of the pressing cylinder 21. The pressure roller 3 is mounted on the adjusting frame 22, so that the pressure roller 3 moves up and down with the adjusting frame 22 under the drive of the pressing cylinder 21. The connecting plate 23 is connected to the connecting frame 1, thereby ensuring that the pressing part 2 is fixedly mounted above the inlet of the centrifuge 4. The pressing cylinder 21 is connected to the air source, and the main unit is connected to the air source to control the extension and retraction operation of the telescopic rod of the pressing cylinder 21.

[0028] This invention replaces the manual pressure channel 5 operation when centrifuging centrifuge 4 is used to produce small-diameter pipes. The pressure position is stable and controllable, reducing the manual workload and improving the precision control. It also avoids dangerous manual operations and improves the quality of pipe products.

[0029] Example 2

[0030] like Figure 3 As shown, Figure 3 The image shows a front view of the connection structure of the lower pressing part. The adjusting frame 22 includes a first adjusting plate 221, which is configured as a U-shaped plate structure including a central connecting section 222 and two side wing connecting sections 223. The two side wing connecting sections 223 are vertically connected to the two ends of the central connecting section 222. The pressure roller 3 is cylindrical and is axially sleeved on the rotating shaft 31 and can rotate freely along its own axis. The two ends of the rotating shaft 31 are respectively fixed on the two side wing connecting sections 223. The axial direction of the pressure roller 3 is perpendicular to the extension direction of the flow channel 5. Thus, when the pressure roller 3 is lowered by the first adjusting plate 221 to press down on the flow channel 5, the pressure roller 3 can smoothly roll in a straight line along the extension direction of the flow channel 5 when the centrifuge 4 moves in a straight line.

[0031] Generally, the distance between the two side wing connecting sections 223 is slightly larger than the width of the flow channel 5, so that after pressing down, the two side wing connecting sections 223 can be set on both sides of the flow channel 5 to limit the flow channel 5, reduce the vibration range of the flow channel 5, and avoid excessive lateral vibration amplitude of the flow channel 5.

[0032] Specifically, the lower edge height of the pressure roller 3 is higher than the lower edge height of the side wing connecting section 223, so that when the pressure roller 3 presses down to stabilize the flow channel 5, the two side wing connecting sections 223 respectively provide lateral restraint on both sides of the flow channel 5.

[0033] like Figure 4 As shown, Figure 4 This is a side view of the connection structure of the first adjusting plate. The side wing connecting section 223 is provided with a horizontally extending mounting groove 224. Mounting holes are provided on both sides of the mounting groove 224. Keyways are provided at both ends of the rotating shaft 31. The two ends of the rotating shaft 31 are respectively placed in the two mounting grooves 224 of the side wing connecting section 223, and the key plates 226 are fixed in the keyways at both ends of the rotating shaft 31 by mounting bolts 225 and the mounting holes, thereby fixing the two ends of the rotating shaft 31 on the two side wing connecting sections 223. This structure facilitates the disassembly and replacement of the pressure roller 3.

[0034] Example 3

[0035] The adjusting frame 22 also includes a second adjusting plate 227, on which a guide post 24 is fixedly installed. The extension direction of the guide post 24 is consistent with the extension and retraction direction of the pressing cylinder 21. A guide sleeve 25 is provided on the connecting plate 23, and the guide post 24 is disposed in the guide sleeve 25. The guide sleeve 25 and the guide post 24 are coaxially arranged. When the pressing cylinder 21 drives the adjusting frame 22 to move vertically, the guide post 24 moves linearly along the axial direction in the guide sleeve 25, thereby ensuring the stability of the vertical movement of the adjusting frame 22 driven by the pressing cylinder 21.

[0036] Generally, the two guide posts 24 are symmetrically arranged on both sides of the pressing cylinder 21 to further improve the stability of the vertical movement of the adjusting frame 22.

[0037] Preferably, a connecting rod 26 is coaxially fixedly connected to the telescopic rod of the pressing cylinder 21. A first connecting hole is provided in the middle of the second adjusting plate 227, and a second connecting hole is provided in the middle of the central connecting section 222 of the first adjusting plate 221. The connecting rod 26 is simultaneously disposed in the first connecting hole and the second connecting hole, and a limit ring 27 is provided at one end of the connecting rod 26, and a locking nut 28 is threadedly connected to the other end. The second adjusting plate 227 and the central connecting section 222 are both disposed on the limit ring 27 and the locking nut 28. By tightening the locking nut 28, a detachable connection between the pressing cylinder 21 and the adjusting frame 22 can be realized.

[0038] Generally, an adjusting shim 29 is provided between the second adjusting plate 227 and the central connecting section 222. The adjusting shim 29 has a third connecting hole, and the connecting rod 26 is disposed in the third connecting hole. The adjusting shim 29 is clamped by the second adjusting plate 227 and the central connecting section 222, thereby fixing the position of the adjusting shim 29. By replacing the adjusting shims 29 with different thicknesses, the initial height of the pressure roller 3 can be adjusted, thereby adjusting the position of the pressure roller 3 corresponding to the flow channel 5.

[0039] The above description is merely a preferred embodiment of the present utility model and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present utility model, all of which will fall within the protection scope of the present utility model.

Claims

1. A device for preventing vibration of the centrifuge's flow channel, characterized in that, The device includes a connecting frame, a pressing part, a pressure roller, and a main unit. The pressing part is fixedly mounted above the inlet of the centrifuge via the connecting frame. The connecting frame is fixedly mounted on the centrifuge. The pressure roller is mounted on the pressing part, and the pressing part drives the pressure roller to move vertically. The pressure roller is positioned between the flow channel and the pressing part. The main unit is connected to both the pressing part and the centrifuge.

2. The device for preventing centrifuge flow channel vibration as described in claim 1, characterized in that, The pressing part includes a pressing cylinder, an air source, an adjusting frame, and a connecting plate. The pressing cylinder is fixedly mounted on the connecting plate, and the adjusting frame is fixedly mounted on the telescopic rod of the pressing cylinder. The pressure roller is mounted on the adjusting frame. The connecting plate is connected to the connecting frame. The pressing cylinder is connected to the air source. The main unit is connected to the air source to control the extension and retraction operation of the telescopic rod on the pressing cylinder.

3. The device for preventing centrifuge flow channel vibration as described in claim 2, characterized in that, The adjusting frame includes a first adjusting plate, which is configured as a U-shaped plate structure including a central connecting section and two side wing connecting sections. The two side wing connecting sections are perpendicularly connected to the two ends of the central connecting section. The pressure roller is cylindrical and is axially sleeved on a rotating shaft and can rotate freely along its own axis. The two ends of the rotating shaft are respectively fixed on the two side wing connecting sections. The axial direction of the pressure roller is perpendicular to the extension direction of the flow channel.

4. The device for preventing centrifuge flow channel vibration as described in claim 3, characterized in that, The distance between the two side wing connecting sections is greater than the width of the flow channel.

5. The device for preventing centrifuge flow channel vibration as described in claim 4, characterized in that, The lower edge of the pressure roller is higher than the lower edge of the side wing connecting section.

6. The device for preventing centrifuge flow channel vibration as described in claim 3, characterized in that, The side wing connecting section is provided with a horizontally extending mounting groove, and mounting holes are provided on both sides of the mounting groove. The two ends of the rotating shaft are provided with keyways. The two ends of the rotating shaft are respectively located in the two mounting grooves of the side wing connecting section, and the key plate is fixedly installed in the keyways at both ends of the rotating shaft by mounting bolts and mounting holes.

7. The device for preventing centrifuge flow channel vibration as described in claim 3, characterized in that, The adjusting frame also includes a second adjusting plate, on which a guide post is fixedly installed. The extension direction of the guide post is consistent with the extension and retraction direction of the pressing cylinder. A guide sleeve is provided on the connecting plate, and the guide post is disposed inside the guide sleeve. The guide sleeve and the guide post are coaxially arranged. When the pressing cylinder drives the adjusting frame to move vertically, the guide post moves linearly along the axial direction inside the guide sleeve.

8. The device for preventing centrifuge flow channel vibration as described in claim 7, characterized in that, The two guide pillars are symmetrically arranged on both sides of the downward pressure cylinder.

9. The centrifuge anti-vibration device as described in claim 7, characterized in that, A connecting rod is coaxially fixedly connected to the telescopic rod of the downward cylinder. A first connecting hole is provided in the middle of the second adjusting plate, and a second connecting hole is provided in the middle of the central connecting section of the first adjusting plate. The connecting rod is simultaneously disposed in the first connecting hole and the second connecting hole, and a limit ring is provided at one end of the connecting rod, and a locking nut is threaded to the other end. The second adjusting plate and the central connecting section are both disposed on the limit ring and the locking nut.

10. The device for preventing centrifuge flow channel vibration as described in claim 9, characterized in that, An adjusting shim is also provided between the second adjusting plate and the central connecting section. The adjusting shim is provided with a third connecting hole, and the connecting rod is disposed in the third connecting hole.

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