Powder feeding device

Abstract

The utility model belongs to the technical field of material conveying equipment, and particularly relates to a powder feeding device. In order to overcome the defect that an existing powder material feeder is uneven in feeding, the following technical scheme is adopted: the material feeding device comprises a shell which is fixedly arranged; the material inlet is formed in the upper part of the shell; the material outlet is formed in the lower part of the shell; the feeding assembly comprises a horizontal rotating shaft, a plurality of blades and rubber sealing blocks, the blades are arranged on the rotating shaft and evenly distributed in the circumferential direction, the rubber sealing blocks are arranged at the radial outer ends of the blades, and a feeding cavity is formed between every two adjacent blades; the driving assembly drives the feeding assembly to rotate; wherein the rubber sealing blocks are used for sealing the parts between the blades and the shell, and the capacities of the feeding cavities formed between the adjacent blades are the same. The material feeding device disclosed by the utility model has the beneficial effect that uniform feeding can be realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of material conveying equipment, and in particular relates to a powder material feeding device. Background Art

[0002] Material feeding equipment is widely used in different industries such as mining, metallurgy, coal, building materials, light industry, chemical industry, electric power, and food. It is used to deliver powdered materials from storage bins or hoppers to receiving devices evenly, continuously, or quantitatively.

[0003] The existing powder material feeder has loose sealing between blades, and the materials are easily shunted between the blades, resulting in uneven and unstable conveying. In addition, the lubrication and sealing structure between the feeding assembly (including the rotating shaft, the mounting seat and the blades) and the housing also has room for improvement. Summary of the invention

[0004] The utility model aims at the problem that the existing powder material feeder feeds unevenly, provides a powder material feeding device to achieve uniform feeding, and further improves the lubrication and sealing structure between the feeding component and the housing.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a material feeding device, the material feeding device comprises:

[0006] A housing, fixedly arranged;

[0007] A material inlet is arranged above the shell;

[0008] A material outlet is provided below the shell;

[0009] A feeding assembly comprises a horizontal rotating shaft, a plurality of blades evenly distributed on the rotating shaft, and a rubber sealing block arranged at the radial outer ends of the blades, and a feeding chamber is formed between adjacent blades;

[0010] A driving assembly, driving the feeding assembly to rotate;

[0011] The rubber sealing block seals the blades and the housing, and the feeding chambers formed between adjacent blades have the same capacity.

[0012] The material feeding device of the utility model comprises a shell, a material inlet, a material outlet, a feeding assembly and a driving assembly. The feeding assembly comprises a plurality of blades uniformly distributed around the circumference and a rubber sealing block arranged at the radial outer end of the blade. The driving assembly drives the feeding assembly to rotate, and the rubber sealing block seals the blades and the shell. The capacity of the feeding chambers formed between adjacent blades is the same. When working, material is added to the material inlet, and the driving assembly drives the feeding assembly to rotate. The rotation of the feeding assembly drives the material in the feeding chamber to rotate. When the material rotates to the discharge port, the material falls down due to its own gravity. Since the capacity of the feeding chambers formed between adjacent blades is the same, when the feeding assembly rotates uniformly, uniform feeding can be achieved.

[0013] As an improvement, a stirrer is provided in the material inlet. During the falling process of the material, the stirrer continuously stirs the material to prevent the material from flowing unsmoothly and avoid the occurrence of arching, so that the material flows evenly.

[0014] As an improvement, the axial direction of the stirrer is horizontally arranged and perpendicular to the axial direction of the feeding assembly; there are two stirrers and they are distributed along the axial direction of the feeding assembly. The axial direction of the stirrer is perpendicular to the axial direction of the feeding assembly, which improves the stirring effect.

[0015] As an improvement, the material feeding device further includes a cleaning component, the cleaning component includes a gas nozzle disposed in the material outlet, and the gas outlet direction of the gas nozzle is toward the feeding chamber. When the material falls under its own gravity, part of the material may adhere to the blades. By providing a cleaning component including a gas nozzle, the adhered material can fall quickly under the purge of gas, thereby ensuring uniform feeding and improving the conveying efficiency.

[0016] As an improvement, the gas nozzles are provided in two groups and are symmetrically arranged, and each group of the gas nozzles has a plurality of gas nozzles and are distributed along the axial direction of the feeding assembly.

[0017] As an improvement, the rubber seal block is fixed to the blade by screws, so that it is easy to replace the rubber seal block. An L-shaped installation groove is provided on the blade, the rubber seal block is installed in the installation groove, and the radial outer end of the camera seal protrudes outward from the blade.

[0018] As an improvement, the housing is provided with two concave sealing assemblies located at both ends of the rotating shaft, the sealing assemblies are provided with bearings, the rotating shaft cooperates with the bearings, the sealing assemblies include a sealing sleeve and a sealing cover connected by threads, and a refueling port is provided on the sealing sleeve and / or the sealing cover;

[0019] The driving assembly comprises a motor and a coupling, and the motor is connected to the rotating shaft through the coupling.

[0020] As an improvement, the feeding assembly further comprises a mounting seat fixed on the rotating shaft, and retaining rings fixed on the mounting seat and located at both ends of the blades, and the blades are fixed on the mounting seat.

[0021] As an improvement, the housing comprises a round sleeve and two end covers connected by screws, the retaining ring is located radially inward of the round sleeve, an axial gap is provided between the retaining ring and the end covers, and the axial gap is filled with grease.

[0022] As an improvement, a sealing member is provided in the axial gap, a refueling nozzle is threadedly connected to the end cover, the refueling nozzle is inserted into the sealing member, a refueling channel is formed in the refueling nozzle, and a flow channel connected to the refueling channel is formed in the sealing member;

[0023] A radial positioning structure is formed between the circular sleeve and the two end covers;

[0024] An axial gap is provided between the mounting seat and the end cover;

[0025] The radial outer end of the mounting seat end surface axially extends to form a convex portion.

[0026] As an improvement, the circulation channel includes a connected axial hole, multiple radial holes and a radial groove on the axial end face close to the end cover, and multiple oil grooves are provided on the inner and outer side faces of the seal and the end face close to the retaining ring; a refueling hole is formed at the outer end of the refueling channel, and the refueling hole is a threaded hole, in which a sealing head is provided.

[0027] The material feeding device of the utility model has the following beneficial effects: it includes a housing, a material inlet, a material outlet, a feeding assembly and a driving assembly, the feeding assembly includes a plurality of blades evenly distributed around the circumference and a rubber sealing block arranged at the radial outer end of the blade, the driving assembly drives the feeding assembly to rotate, the rubber sealing block seals the blades and the housing, the feeding chambers formed between adjacent blades have the same capacity, when working, material is added to the material inlet, the driving assembly drives the feeding assembly to rotate, the feeding assembly rotates and drives the material in the feeding chamber to rotate, when rotating to the discharge port, the material falls down due to its own gravity, since the capacity of the feeding chambers formed between adjacent blades is the same, when the feeding assembly rotates evenly, even feeding can be achieved. Further, the feeding assembly and the housing are sealed and lubricated. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 and Figure 2 It is a schematic structural diagram of the material feeding device of the first embodiment of the utility model at different angles.

[0029] Figure 3 It is a structural schematic diagram of the sealing member of the material feeding device of the first embodiment of the utility model (only a part is shown).

[0030] In the figure, 1, shell; 1-1, cylinder; 1-2, end cover;

[0031] 2. Material entrance;

[0032] 3. Material export;

[0033] 4. Feeding assembly; 41. Rotating shaft; 42. Mounting seat; 43. Blade; 44. Rubber sealing block; 45. Retaining ring;

[0034] 5. Seal; 51. Axial hole; 52. Radial hole; 53. Radial groove; 54. Oil groove;

[0035] 6. Fueling nozzle; 61. Fueling channel;

[0036] 7. Agitator;

[0037] 8. Cleaning assembly; 81. Gas nozzle;

[0038] 9. Drive components;

[0039] 10. Sealing head;

[0040] 11. Concave sealing assembly. DETAILED DESCRIPTION

[0041] The technical solutions of the embodiments of the present invention are explained and described below, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0042] See also Figures 1 to 3 , the material feeding device of the embodiment of the utility model, the material feeding device, the material feeding device comprises:

[0043] A housing, fixedly arranged;

[0044] A material inlet is arranged above the shell;

[0045] A material outlet is provided below the shell;

[0046] A feeding assembly comprises a horizontal rotating shaft, a plurality of blades evenly distributed on the rotating shaft, and a rubber sealing block arranged at the radial outer ends of the blades, and a feeding chamber is formed between adjacent blades;

[0047] A driving assembly, driving the feeding assembly to rotate;

[0048] The rubber sealing block seals the blades and the housing, and the feeding chambers formed between adjacent blades have the same capacity.

[0049] The material feeding device of the utility model comprises a shell, a material inlet, a material outlet, a feeding assembly and a driving assembly. The feeding assembly comprises a plurality of blades uniformly distributed around the circumference and a rubber sealing block arranged at the radial outer end of the blade. The driving assembly drives the feeding assembly to rotate, and the rubber sealing block seals the blades and the shell. The capacity of the feeding chambers formed between adjacent blades is the same. When working, material is added to the material inlet, and the driving assembly drives the feeding assembly to rotate. The rotation of the feeding assembly drives the material in the feeding chamber to rotate. When the material rotates to the discharge port, the material falls down due to its own gravity. Since the capacity of the feeding chambers formed between adjacent blades is the same, when the feeding assembly rotates uniformly, uniform feeding can be achieved.

[0050] Embodiment 1

[0051] See also Figures 1 to 3 , the material feeding device of the first embodiment of the utility model, the material feeding device, the material feeding device comprises:

[0052] Shell 1, fixedly arranged;

[0053] A material inlet 2 is provided above the housing 1;

[0054] A material outlet 3 is provided below the housing 1;

[0055] The feeding assembly 4 comprises a horizontal rotating shaft 41, a plurality of blades 43 evenly distributed on the rotating shaft 41, and a rubber sealing block 44 provided at the radial outer end of the blades 43, and a feeding chamber is formed between adjacent blades 43;

[0056] A driving assembly 9 drives the feeding assembly 4 to rotate;

[0057] The rubber sealing block 44 seals the blades 43 and the housing 1 , and the feeding chambers formed between adjacent blades 43 have the same capacity.

[0058] In this embodiment, a stirrer 7 is provided in the material inlet 2. During the falling process of the material, the stirrer 7 continuously stirs the material to prevent the material from flowing unsmoothly and avoid the occurrence of arching, so that the material flows evenly.

[0059] In this embodiment, the axial direction of the stirrer 7 is horizontally arranged and perpendicular to the axial direction of the feeding assembly 4; there are two stirrers 7 and they are distributed along the axial direction of the feeding assembly 4. The axial direction of the stirrer 7 is perpendicular to the axial direction of the feeding assembly 4, which improves the stirring effect. In other embodiments, the number and distribution of the stirrers 7 can be adjusted accordingly as needed. The two stirrers 7 each have a plurality of stirring blades, and the stirring blades of the two stirrers 7 are staggered.

[0060] In this embodiment, the material feeding device further includes a cleaning component 8, and the cleaning component 8 includes a gas nozzle 81 disposed in the material outlet 3, and the gas outlet direction of the gas nozzle 81 is toward the feeding chamber. When the material falls under its own gravity, part of the material may adhere to the blade 43. By providing the cleaning component 8 including the gas nozzle 81, the adhered material can fall quickly under the purge of the gas, thereby ensuring uniform feeding and improving the conveying efficiency.

[0061] In this embodiment, there are two groups of gas nozzles 81 and they are symmetrically arranged, and each group of gas nozzles 81 has a plurality of gas nozzles 81 and they are distributed along the axial direction of the feeding assembly 4. In other embodiments, the number and distribution of the gas nozzles 81 can be adjusted accordingly as needed.

[0062] In this embodiment, the rubber seal block 44 is fixed to the blade 43 by screws, so that it is easy to replace the rubber seal block 44. The blade 43 is provided with an L-shaped mounting groove, and the rubber seal block 44 is installed in the mounting groove. The radial outer end of the camera seal 5 protrudes outward from the blade 43. The screw fixation facilitates the replacement of the rubber seal block 44. The rubber seal block 44 is installed in the L-shaped mounting groove, and the rubber silicone component is positioned.

[0063] In this embodiment, the housing 1 is provided with two concave sealing components 11 located at both ends of the rotating shaft 41, a bearing is provided in the sealing component, the rotating shaft 41 cooperates with the bearing, the sealing component includes a sealing sleeve and a sealing cover connected by threads, and a refueling port is provided on the sealing sleeve and / or the sealing cover. The sealing sleeve is welded to the housing 1. A radial positioning structure is formed between the sealing sleeve and the sealing cover, and the sealing cover is partially inserted into the sealing sleeve. A sealing ring and a sealing ring are also provided on the sealing cover near one end of the motor. A sealing head 10 is provided in the refueling port.

[0064] In this embodiment, the driving assembly 9 includes a motor and a coupling, and the motor is connected to the rotating shaft 41 through the coupling.

[0065] In this embodiment, the feeding assembly 4 further includes a mounting seat 42 fixed on the rotating shaft 41 , and retaining rings 45 fixed on the mounting seat 42 and located at both ends of the blade 43 , and the blade 43 is fixed on the mounting seat 42 .

[0066] In this embodiment, the housing 1 includes a circular sleeve and two end covers 1-2 connected by screws, the retaining ring 45 is located radially inside the circular sleeve, and an axial gap is provided between the retaining ring 45 and the end covers 1-2, and the axial gap is filled with grease.

[0067] In this embodiment, a sealing member 5 is provided in the axial gap, a refueling nozzle 6 is threadedly connected to the end cover 1-2, the refueling nozzle 6 is inserted into the sealing member 5, a refueling channel 61 is formed in the refueling nozzle 6, and a flow channel connected to the refueling channel 61 is formed in the sealing member 5. The refueling nozzle 6 is inserted into the sealing member 5 to position the sealing member 5 in the radial and axial directions, and at the same time, the axial direction of the sealing member 5 is limited by the retaining ring 45 and the end cover 1-2.

[0068] In this embodiment, a radial positioning structure is formed between the circular sleeve and the two end covers 1 - 2 .

[0069] In this embodiment, there is an axial gap between the mounting seat 42 and the end cover 1 - 2 .

[0070] In this embodiment, the radial outer end of the end surface of the mounting seat 42 extends axially to form a convex portion. When axial movement occurs between the rotating component and the shell 1, the convex portion can reduce the relative friction between the mounting seat 42 and the end cover 1-2.

[0071] In this embodiment, the circulation channel includes a connected axial hole 51, a plurality of radial holes 52 and a radial groove 53 on the axial end surface close to the end cover 1-2. The inner and outer side surfaces of the seal 5 and the end surface close to the retaining ring 45 are provided with a plurality of oil grooves 54. The outer end of the refueling channel 61 forms a refueling hole, which is a threaded hole and is provided with a sealing head 10. The diameter of the axial hole 51 close to the refueling nozzle 6 is larger than that of the end away from the refueling nozzle 6, and the refueling nozzle 6 is inserted into the axial hole 51.

[0072] The beneficial effects of the material feeding device of the first embodiment of the utility model are as follows: it comprises a shell 1, a material inlet 2, a material outlet 3, a feeding assembly 4 and a driving assembly 9, the feeding assembly 4 comprises a plurality of blades 43 evenly distributed around the circumference and a rubber sealing block 44 arranged at the radial outer end of the blade 43, the driving assembly 9 drives the feeding assembly 4 to rotate, the rubber sealing block 44 seals the blade 43 and the shell 1, the feeding chambers formed between adjacent blades 43 have the same capacity, when working, material is added to the material inlet 2, the driving assembly 9 drives the feeding assembly 4 to rotate, the feeding assembly 4 rotates to drive the material in the feeding chamber to rotate, and when it rotates to the discharge port, the material is discharged by It falls down due to its own gravity. Since the capacity of the feeding chamber formed between adjacent blades 43 is the same, when the feeding component 4 rotates evenly, even feeding can be achieved; a stirrer 7 is provided; a cleaning component 8 is provided; grease is filled between the baffle ring 45 of the feeding component 4 and the cylinder 1-1 of the shell 1 to reduce the wear between the baffle ring 45 and the cylinder 1-1, and at the same time prevent the material from entering between the feeding component 4 and the shell 1; a sealing member 5 is provided, and a flow channel connected to the refueling channel 61 of the refueling nozzle 6 is formed in the sealing member 5, and the sealing member 5 can reduce and / or reduce the loss of grease; the sealing member 5 adopts an elastic member and also plays a buffering role.

[0073] The above is only a specific implementation of the invention, but the protection scope of the invention is not limited thereto. Those skilled in the art should understand that the invention includes but is not limited to the contents described in the above specific implementation. Any modification that does not deviate from the functional and structural principles of the invention will be included in the scope of the claims.

Claims

1. Powder feeding device, characterized in that: The powder feeding device comprises: A housing (1) is fixedly arranged; A material inlet (2) is arranged above the shell (1); A material outlet (3) is provided below the housing (1); A feeding assembly (4) comprises a horizontal rotating shaft (41), a plurality of blades (43) evenly distributed around the circumference of the rotating shaft (41), and a rubber sealing block (44) arranged at the radial outer ends of the blades (43), wherein a feeding chamber is formed between adjacent blades (43); A driving assembly (9) for driving the feeding assembly (4) to rotate; The rubber sealing block (44) seals the blades (43) and the housing (1), and the feeding chambers formed between adjacent blades (43) have the same capacity.

2. The powder feeding device according to claim 1, characterized in that: The material inlet (2) is provided with a stirrer (7).

3. The powder feeding device according to claim 2, characterized in that: The axial direction of the stirrer (7) is arranged horizontally and perpendicular to the axial direction of the feeding component (4); there are two stirrers (7) and they are distributed along the axial direction of the feeding component (4).

4. The powder feeding device according to claim 1, characterized in that: The powder material feeding device further comprises a cleaning component (8), wherein the cleaning component (8) comprises a gas nozzle (81) arranged in the material outlet (3), and the gas outlet direction of the gas nozzle (81) is toward the feeding chamber.

5. The powder feeding device according to claim 4, characterized in that: The gas nozzles (81) are in two groups and are symmetrically arranged. Each group of gas nozzles (81) has a plurality of gas nozzles and are distributed along the axial direction of the feeding assembly (4).

6. The powder feeding device according to claim 1, characterized in that: The rubber sealing block (44) is fixed to the blade (43) by means of screws, and an L-shaped mounting groove is provided on the blade (43); The housing (1) is provided with two concave sealing components (11) located at both ends of the rotating shaft (41), the sealing components are provided with bearings, the rotating shaft (41) cooperates with the bearings, the sealing components include a sealing sleeve and a sealing cover connected by threads, the sealing sleeve and / or the sealing cover are provided with a refueling port, and the sealing cover near one end of the driving component (9) is also provided with a sealing ring and a sealing ring; The driving assembly (9) comprises a motor and a coupling, and the motor is connected to the rotating shaft (41) via the coupling.

7. The powder feeding device according to claim 1, characterized in that: The feeding assembly (4) further comprises a mounting seat (42) fixed on the rotating shaft (41), and retaining rings (45) fixed on the mounting seat (42) and located at both ends of the blade (43); the blade (43) is fixed on the mounting seat (42).

8. The powder feeding device according to claim 7, characterized in that: The housing (1) comprises a circular sleeve and two end covers (1-2) connected by screws, the retaining ring (45) is located radially inward of the circular sleeve, an axial gap is provided between the retaining ring (45) and the end covers (1-2), and the axial gap is filled with lubricating grease.

9. The powder feeding device according to claim 8, characterized in that: A sealing member (5) is provided in the axial gap, a refueling nozzle (6) is threadedly connected to the end cover (1-2), a refueling channel (61) is formed in the refueling nozzle (6), the refueling nozzle (6) is inserted into the sealing member (5), and a flow channel communicating with the refueling channel (61) is formed in the sealing member (5); A radial positioning structure is formed between the circular sleeve and the two end covers (1-2); An axial gap is provided between the mounting seat (42) and the end cover (1-2); The radial outer end of the end surface of the mounting seat (42) extends axially to form a convex portion.

10. The powder feeding device according to claim 9, characterized in that: The circulation channel comprises a connected axial hole (51), a plurality of radial holes (52) and a radial groove (53) on the axial end surface close to the end cover (1-2); the inner and outer side surfaces of the sealing member (5) and the end surface close to the retaining ring (45) are provided with a plurality of oil grooves (54); a refueling hole is formed at the outer end of the refueling channel (61); the refueling hole is a threaded hole, and a sealing head (10) is provided in the refueling hole.

Images