Rotary discharge valve

Abstract

The utility model relates to the technical field of discharging devices, and particularly discloses a rotary discharging valve which comprises a driving assembly, a barrel and an impeller. The driving assembly comprises a driving motor, a driving chain wheel, a transmission chain wheel and a chain; the output end of the driving motor is connected with the driving chain wheel; the chain is connected with the driving chain wheel and the transmission chain wheel; the tooth number of the transmission chain wheel is greater than that of the driving chain wheel; and the impeller is rotatably arranged in the cylinder body and is synchronously and rotatably connected with the transmission chain wheel. According to the scheme, the driving assembly can play a role in speed reduction transmission, so that the torque of the impeller is improved, and the possibility of the phenomena of material blocking and electric control tripping and shutdown is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of discharge devices, and in particular to a rotary discharge valve. Background Art

[0002] The working principle of the rotary discharge valve is to drive the blades to rotate around the horizontal axis in the valve body through the rotating shaft. The material dropped from the top is filled in the space between the blades. The material is discharged to the bottom as the blades rotate, completing the uniform and continuous transportation of materials.

[0003] Most of the existing rotary unloading valves are installed with the motor directly connected to the valve body shaft. Since the rotation speed of the blade needs to be controlled within a certain low-speed range, the frequency converter needs to be controlled to a low frequency to meet the unloading volume requirements. This will reduce the output torque of the motor, which is prone to jamming and electronic control tripping and shutdown.

[0004] At the same time, before the blades rotate to discharge, the material will accumulate in the gap between the blades and the barrel due to gravity, causing some material to leak out from the gap between the blades and the barrel, resulting in poor control accuracy of the discharge amount. Utility Model Content

[0005] In view of this, the purpose of the present application is to provide a rotary discharge valve to solve one of the above problems.

[0006] In order to achieve the above technical purpose, the present application provides a rotary discharge valve, comprising: a drive assembly, a cylinder and an impeller;

[0007] The driving assembly comprises: a driving motor, a driving sprocket, a transmission sprocket and a chain;

[0008] The output end of the driving motor is connected to the driving sprocket;

[0009] The chain connects the driving sprocket and the transmission sprocket;

[0010] The number of teeth of the transmission sprocket is greater than the number of teeth of the drive sprocket;

[0011] The impeller is rotatably disposed in the cylinder and is synchronously rotatably connected with the transmission sprocket.

[0012] Furthermore, the impeller comprises: a rotating shaft, a plurality of blades and two end plates;

[0013] The rotating shaft is disposed in the cylinder and is synchronously rotated and connected to the transmission sprocket;

[0014] The plurality of blades are evenly distributed around the rotating shaft;

[0015] The length direction of the blade is arranged along the axial direction of the rotating shaft;

[0016] The two end plates are respectively arranged on both sides of the blade along the length direction and abut against the plurality of blades;

[0017] The blades abut against the inner wall of the cylinder.

[0018] Furthermore, one end of the blade away from the rotating shaft extends along the circumferential direction to form a shielding portion;

[0019] The inner side of the shielding portion is an arc transition structure.

[0020] Furthermore, the cylinder is connected to bearing sleeves on both sides along the axial direction;

[0021] A bearing is arranged in the bearing sleeve;

[0022] The rotating shaft extends out of the cylinder and is sleeved in the bearing.

[0023] Furthermore, the bearing sleeve is provided with an ash leakage observation port which opens downwards;

[0024] The ash leakage observation port is arranged between the bearing and the end plate.

[0025] Furthermore, an oil seal and an oil-immersed graphite packing are connected to the side of the bearing on the rotating shaft.

[0026] Furthermore, the cylinder is connected to the bearing sleeve via a flange.

[0027] Furthermore, a positioning pin hole is provided on the flange.

[0028] Further, the drive assembly further comprises: a chain cover;

[0029] The chain cover is connected to the outside of the driving sprocket and the transmission sprocket.

[0030] Further, it also includes: a base;

[0031] The driving motor is movably arranged on the base;

[0032] The cylinder is fixed on the base;

[0033] The drive assembly further comprises: a tensioning bolt;

[0034] The tensioning bolt is rotatably arranged on the base, and is used to drive the driving motor to move and adjust the tightness of the chain.

[0035] It can be seen from the above technical scheme that the present application provides a rotary unloading valve, comprising: a driving assembly, a cylinder and an impeller; the driving assembly comprises: a driving motor, a driving sprocket, a transmission sprocket and a chain; the output end of the driving motor is connected to the driving sprocket; the chain connects the driving sprocket and the transmission sprocket; the number of teeth of the transmission sprocket is greater than the number of teeth of the driving sprocket; the impeller is rotatably arranged in the cylinder and is synchronously rotatably connected with the transmission sprocket.

[0036] The drive assembly in this solution can play the role of reduction transmission to increase the torque of the impeller and reduce the possibility of material jamming and electric control tripping and shutdown. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0038] Figure 1 A schematic diagram of the overall structure of a rotary discharge valve provided in an embodiment of the present application;

[0039] Figure 2 An axial cross-sectional view along the rotating shaft of a rotary discharge valve provided in an embodiment of the present application;

[0040] Figure 3 A schematic diagram of an impeller of a rotary discharge valve provided in an embodiment of the present application;

[0041] Figure 4 A cross-sectional view of an impeller and a cylinder of a rotary discharge valve provided in an embodiment of the present application;

[0042] In the figure:

[0043] 10. Drive assembly; 11. Drive motor; 12. Drive sprocket; 13. Transmission sprocket; 14. Chain; 15. Chain cover; 16. Tension bolt;

[0044] 20. Cylinder; 21. Bearing sleeve; 22. Bearing; 23. Ash leakage observation port; 24. Oil seal; 25. Oil-immersed graphite packing; 26. End cover; 27. Oil nozzle; 201. Feed pipe; 202. Discharge pipe; 203. Flange structure; 204. Discharge port;

[0045] 30. impeller; 31. rotating shaft; 32. blades; 33. end plate;

[0046] 40. Flange; 41. Dowel pin hole;

[0047] 100. Base. DETAILED DESCRIPTION

[0048] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the specification of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection requested by the present application.

[0049] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0050] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a replaceable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0051] See also Figures 1 to 4 A rotary discharge valve provided in an embodiment of the present application includes: a drive assembly 10, a cylinder 20 and an impeller 30.

[0052] The driving assembly 10 includes: a driving motor 11, a driving sprocket 12, a transmission sprocket 13 and a chain 14; the output end of the driving motor 11 is connected to the driving sprocket 12; the chain 14 connects the driving sprocket 12 and the transmission sprocket 13; the number of teeth of the transmission sprocket 13 is greater than the number of teeth of the driving sprocket 12; the impeller 30 is rotatably arranged in the cylinder 20, and is synchronously rotatably connected with the transmission sprocket 13.

[0053] In this solution, after the drive motor 11 is started, the drive motor 11 drives the drive sprocket 12 to rotate, and the drive sprocket 12 drives the rotating sprocket 13 to rotate through the chain 14, and then the rotating sprocket 13 drives the impeller 30 in the cylinder 20 to rotate. The drive sprocket 12, the transmission sprocket 13 and the chain 14 can decelerate the rotation of the impeller 30 without reducing the rotation speed of the drive motor 11, and at the same time increase the torque of the impeller 30, thereby reducing the possibility of material jamming and electric control tripping and shutdown.

[0054] In application, a feed pipe 201 and a discharge pipe 202 may be connected to the barrel 20 ; the feed pipe 201 is arranged above the barrel 20 ; the discharge pipe 202 is arranged below the barrel 20 , and the discharge pipe 202 is connected to the barrel 20 and the discharge port 204 on the barrel 20 .

[0055] In a more specific embodiment, the impeller 30 includes: a rotating shaft 31, a plurality of blades 32 and two end plates 33; the rotating shaft 31 is disposed in the cylinder 20 and is synchronously rotated to connect the transmission sprocket 13; the plurality of blades 32 are evenly distributed around the rotating shaft 31 in a circumferential manner; the length direction of the blades 32 is arranged along the axial direction of the rotating shaft 31; the two end plates 33 are respectively disposed on both sides of the blades 32 along the length direction and are in contact with the plurality of blades 32; the blades 32 are in contact with the inner wall of the cylinder 20.

[0056] In this embodiment, two adjacent blades 32 and two end plates 33 form a material cavity. After the material enters the cylinder 20 from the feed pipe 201, it will fall into the material cavity and, as the impeller 30 rotates, fall into the discharge pipe 202 from the discharge port 204 for quantitative discharge.

[0057] In this embodiment, the rotating shaft 31 and the cylinder 20 are both made by lathe precision machining to ensure that the impeller 30 is concentric with the cylinder 20, so that the gap between the blades 32 and the cylinder 20 is controlled to be smaller, reducing the leakage of materials from the gap.

[0058] In one embodiment, see Figure 4 One end of the blade 32 away from the rotating shaft 31 extends along the circumferential direction to form a shielding portion 321; the inner side of the shielding portion 321 is an arc transition structure.

[0059] Among them, the inner side of the shielding portion 321 refers to the side thereof located in the material cavity; the inner side of the shielding portion 321 is an arc transition structure so that after the material cavity is connected to the discharge port 204, the material can slide out along the inner side of the shielding portion 321; at the same time, before the material cavity is connected to the discharge port 204, the material 50 will first dock with the inner side of the shielding portion 321 due to gravity, thereby reducing the squeezing force of the material on the gap between the blade 32 and the cylinder 20 and reducing the leakage of the material from the gap between the blade 32 and the cylinder 20, thereby improving the control accuracy of the discharge amount.

[0060] In another embodiment, the cylinder 20 is connected to bearing sleeves 21 on both sides along the axial direction; the bearing sleeve 21 is provided with a bearing 22; and the rotating shaft 31 extends out of the cylinder 20 and is sleeved in the bearing 22.

[0061] Among them, bearing sleeves 21 can be provided on both sides of the cylinder 20, and both sides of the rotating shaft 31 along the axial direction extend out of the cylinder 20 and are respectively connected to the bearings 22 in the bearing sleeves 21 on both sides, thereby improving the rotation stability of the rotating shaft 31.

[0062] Furthermore, the bearing sleeve 21 is provided with an ash leakage observation port 23 which opens downwards. The ash leakage observation port 23 is provided between the bearing 22 and the end plate 33 .

[0063] The material leaking out of the cylinder 20 will fall out of the ash leakage observation port 23 instead of penetrating into the bearing 22 , thus avoiding damage to the bearing 22 . Meanwhile, the ash leakage observation port 23 can facilitate the staff to find the leakage and perform repairs in time.

[0064] The bearing sleeve 21 may be provided with an oil nozzle 27 , through which lubricating oil can be added to the bearing 22 .

[0065] The side of the bearing 22 on the rotating shaft 31 is connected with an oil seal 24 and an oil-immersed graphite packing 25 to play a role of sealing and dust prevention. Specifically, the oil seal 24 can be arranged between the bearing 22 and the ash leakage observation port 23, and the oil-immersed graphite packing 25 can be arranged between the ash leakage observation port 23 and the end plate 33.

[0066] It should be noted that the bearing sleeves 21 on both sides of the cylinder 20 and the ends of the bearing sleeves 21 away from the cylinder 20 can be covered with end caps 26. The rotating shaft 31 passes through the end cap 26 on one bearing sleeve 21 to connect to the transmission sprocket 13, and the end cap 26 passed by the rotating shaft 31 can be sleeved with an oil seal 24 to enhance the sealing effect.

[0067] In one embodiment, the cylinder 20 is connected to the bearing sleeve 21 via a flange 40 ; correspondingly, flange structures 203 are provided on both sides of the cylinder 20 so as to be docked with the flange 40 .

[0068] The flange 40 is provided with a positioning pin hole 41 to facilitate the connection between the flange 40 and the flange structure 203 .

[0069] Furthermore, the driving assembly 10 further includes: a chain cover 15 ; the chain cover 15 is connected to the outside of the driving sprocket 12 and the transmission sprocket 13 .

[0070] The chain cover 15 can protect the chain 14 , the driving sprocket 12 and the transmission sprocket 13 .

[0071] In other embodiments, the drive assembly 10 further includes: a base 100; the base 100 is used as a supporting component of the overall structure. The drive motor 11 is movably disposed on the base 100; the cylinder 20 is fixed on the base 100; the drive assembly 10 further includes: a tensioning bolt 16; the tensioning bolt 16 is rotatably disposed on the base 100, and is used to drive the drive motor 11 to move and adjust the tightness of the chain 14.

[0072] The above are only preferred embodiments of the present application and are not intended to limit the present utility model. Although the present application has been described in detail with reference to the examples, those skilled in the art can still modify the technical solutions recorded in the aforementioned examples or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A rotary discharge valve, characterized in that: include: A driving assembly (10), a cylinder (20) and an impeller (30); The driving assembly (10) comprises: a driving motor (11), a driving sprocket (12), a transmission sprocket (13) and a chain (14); The output end of the driving motor (11) is connected to the driving sprocket (12); The chain (14) connects the driving sprocket (12) and the transmission sprocket (13); The number of teeth of the transmission sprocket (13) is greater than the number of teeth of the drive sprocket (12); The impeller (30) is rotatably disposed in the barrel (20) and is synchronously rotatably connected with the transmission sprocket (13).

2. The rotary discharge valve according to claim 1, characterized in that: The impeller (30) comprises: a rotating shaft (31), a plurality of blades (32) and two end plates (33); The rotating shaft (31) is disposed in the cylinder (20) and is synchronously rotatably connected to the transmission sprocket (13); The plurality of blades (32) are evenly distributed around the rotating shaft (31); The length direction of the blade (32) is arranged along the axial direction of the rotating shaft (31); The two end plates (33) are respectively arranged on both sides of the blade (32) along the length direction, and are in contact with the plurality of blades (32); The blades (32) abut against the inner wall of the cylinder (20).

3. The rotary discharge valve according to claim 2, characterized in that: One end of the blade (32) away from the rotating shaft (31) extends in a circumferential direction to form a shielding portion (321); The inner side of the shielding portion (321) is an arc transition structure.

4. The rotary discharge valve according to claim 2, characterized in that: The cylindrical body (20) is connected to bearing sleeves (21) on both sides along the axial direction; A bearing (22) is arranged in the bearing sleeve (21); The rotating shaft (31) extends out of the cylinder (20) and is sleeved in the bearing (22).

5. The rotary discharge valve according to claim 4, characterized in that: The bearing sleeve (21) is provided with an ash leakage observation port (23) opening downward; The ash leakage observation port (23) is arranged between the bearing (22) and the end plate (33).

6. The rotary discharge valve according to claim 4, characterized in that: An oil seal (24) and an oil-immersed graphite packing (25) are connected to the side of the bearing (22) on the rotating shaft (31).

7. The rotary discharge valve according to claim 4, characterized in that: The cylinder (20) is connected to the bearing sleeve (21) via a flange (40).

8. The rotary discharge valve according to claim 7, characterized in that: The flange (40) is provided with a positioning pin hole (41).

9. The rotary discharge valve according to claim 1, characterized in that: The driving assembly (10) further comprises: a chain cover (15); The chain cover (15) is connected to the outside of the driving sprocket (12) and the transmission sprocket (13).

10. The rotary discharge valve according to claim 1, characterized in that: Also includes: base(100); The driving motor (11) is movably arranged on the base (100); The cylinder (20) is fixed on the base (100); The driving assembly (10) further comprises: a tensioning bolt (16); The tensioning bolt (16) is rotatably disposed on the base (100) and is used to drive the driving motor (11) to move and adjust the tightness of the chain (14).

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