Powder-leakage-proof star-shaped blanking valve

Abstract

The utility model discloses a powder leakage prevention star-shaped blanking valve which comprises a valve body, a speed reduction motor, an impeller and an impeller shaft, the impeller is installed in the valve body, the impeller is installed on the impeller shaft, the impeller shaft is matched with bearing seats at the two ends of the valve body, and the bearing seats are connected with the speed reduction motor. The gear motor is installed on one bearing seat and is in transmission with the impeller shaft, and at least one bearing seat is sleeved with a leakage-proof cover used for preventing dust at the bearing seat from leaking. According to the powder-leakage-preventing star-shaped discharging valve, when the sealing structure in the bearing seat is abraded and aged and leaks powder, the powder can be effectively received through the leakage-preventing cover, and therefore the powder is prevented from being scattered on the ground or drifting into the air. On one hand, powder waste can be prevented; on the other hand, the adverse effect of powder leakage on the workshop environment can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of feed valves, in particular to a leakage-proof powder star-shaped feed valve. Background Art

[0002] At present, star-shaped discharge valves are widely used in the powder industry. Their main function is to discharge powder evenly. The bearing seats at both ends of the star-shaped discharge valve are equipped with sealing structures, which can effectively prevent the material from leaking from both ends of the shaft.

[0003] However, due to the aging or wear of the seals in the bearing seats at both ends of the star-shaped discharge valve, the powder material will leak out from both ends of the impeller shaft in the bearing seat and fall to the ground or float in the air, causing material waste and also having a certain impact on the workshop environment. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a leakage-proof powder star-shaped discharge valve.

[0005] In order to solve the above technical problems, the technical solution proposed by the utility model is:

[0006] A leakage-proof powder star-shaped discharge valve comprises a valve body, a reduction motor, an impeller and an impeller shaft, wherein the impeller is installed in the valve body, the impeller is installed on the impeller shaft, the impeller shaft cooperates with the bearing seats at both ends of the valve body, the reduction motor is installed on one of the bearing seats and is transmitted to the impeller shaft, and at least one of the bearing seats is provided with a leakage-proof cover for preventing dust leakage at the bearing seat.

[0007] Furthermore, the leak-proof covers are detachably mounted on the bearing seats at both ends of the valve body.

[0008] Furthermore, the leakproof cover is a polyhedral structure whose rotation can be restricted by a flange on the valve body.

[0009] Furthermore, the leakproof cover between the valve body and the reduction motor includes a first half cover and a second half cover hinged to each other, and the leakproof cover includes a first half cover and a second half cover hinged to each other, and the first half cover and the second half cover are provided with a sleeve groove that cooperates with the outer side wall of the bearing seat.

[0010] Furthermore, the leakproof covers at both ends of the valve body are connected and fixed by connecting pieces.

[0011] Furthermore, the leakproof cover is provided with hanging ears, and the connecting piece is a flexible connecting piece connecting the hanging ears at both ends of the valve body.

[0012] Furthermore, the flexible connecting member is a spring.

[0013] Furthermore, hooks for hanging into the hanging ears are provided at both ends of the spring.

[0014] Furthermore, a clamping step is provided at the end of the bearing seat to prevent the leakproof cover from sliding out.

[0015] Furthermore, the leak-proof cover is a transparent shell structure.

[0016] Compared with the prior art, the advantages of the utility model are:

[0017] When the sealing structure in the bearing seat of the utility model is worn and aged, and powder leaks, the leakage-proof star-shaped discharge valve can effectively catch the powder through the leakage-proof cover, thereby preventing the powder from falling to the ground or floating in the air. On the one hand, it can prevent the waste of powder; on the other hand, it can also avoid the adverse effects of powder leakage on the workshop environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main view of the anti-leakage powder star-shaped discharge valve disclosed in the preferred embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the main view of the anti-leakage powder star-shaped discharge valve disclosed in the preferred embodiment of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the leak-proof cover on the left side of the valve body disclosed in the preferred embodiment of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the leak-proof cover on the right side of the valve body disclosed in the preferred embodiment of the utility model.

[0022] Legend:

[0023] 1. Valve body; 2. Speed ​​reduction motor; 3. Impeller; 4. Impeller shaft; 5. Bearing seat; 6. Leakage cover; 7. First half cover; 8. Second half cover; 9. Socket groove; 10. Flange; 11. Ear; 12. Spring; 13. Hook; 14. Snap-on step; 15. Hinge; 16. Plug hole. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively and meticulously below in conjunction with the accompanying drawings and preferred embodiments of the specification, but the protection scope of the present invention is not limited to the following specific embodiments.

[0025] like Figure 1-4As shown, this embodiment discloses a leakage-proof powder star-shaped discharge valve, comprising a valve body 1, a reduction motor 2, an impeller 3 and an impeller shaft 4, wherein the reduction motor 2 comprises a driving motor and a reduction gear connected in one body, the impeller 3 is installed in the valve body 1, and the valve body 1 is provided with a feed inlet and a discharge outlet on the upper and lower sides of the impeller 3, the impeller 3 is installed on the impeller shaft 4, the impeller shaft 4 cooperates with the bearing seats 5 at both ends of the valve body 1, and a seal is provided between the impeller shaft 4 and the bearing seat 5, the reduction motor 2 is installed on a bearing seat 5 and connected to the impeller shaft 4 through a coupling, thereby transmitting power, wherein the bearing seats 5 at both ends of the valve body 1 are provided with leak-proof covers 6 (see Figure 1 and 2 , including a leakproof cover 6 on the left and a protective cover 6 on the right, the protective cover 6 on the right is arranged between the valve body 1 and the reduction motor 2). Therefore, when the sealing structure in the bearing seat 5 is worn and aged and leaks powder, the leakproof cover 6 can effectively catch the powder, thereby preventing the powder from falling to the ground or floating in the air. On the one hand, it can prevent the waste of powder; on the other hand, it can also avoid the adverse effects of powder leakage on the workshop environment.

[0026] In this embodiment, the bearing seats 5 at both ends of the valve body 1 are detachably covered with leakproof covers 6, so that the detachable design can regularly process the powder collected in the leakproof covers 6. In order to facilitate timely processing and prevent the accumulation of powder, the leakproof covers 6 are transparent shell structures, and the material can directly adopt transparent non-metal, such as plastic.

[0027] In this embodiment, in order to facilitate the online removal of the leakproof cover 6, the leakproof cover 6 (the protective cover 6 on the right) between the valve body 1 and the reduction motor 2 includes a first half cover 7 and a second half cover 8 hinged to each other through a hinge 15, and the first half cover 7 and the second half cover 8 are provided with a sleeve groove 9 that matches the outer wall of the bearing seat 5. Among them, the bearing seat 5 at the left end of the valve body 1 is only provided with a sleeve groove 9 on one side of the first half cover 7 and the second half cover 8, while the bearing seat 5 at the right end of the valve body 1 is provided with sleeve grooves 9 on both sides of the first half cover 7 and the second half cover 8. The leakproof cover 6 on the left can adopt the same split openable and closable structure as the protective cover 6 on the right, so that the seal is tighter; or it can adopt the integrated structure in this embodiment, and only a plug-in hole 16 is provided on the right side of the leakproof cover 6 on the left. Although there is a gap, the structure is simpler.

[0028] In this embodiment, the leakproof cover 6 is a polyhedral structure that can be restricted from rotating by the flange 10 on the valve body 1. The leakproof cover 6 is a cubic structure that can achieve circumferential limitation by the flanges 10 at the upper and lower ends.

[0029] In this embodiment, in order to fix the bearing seats 5 at both ends of the valve body 1, the leakproof covers 6 at both ends of the valve body 1 are connected and fixed by a connector. The connector can be in various forms, such as a rope, a spring, a screw nut assembly, etc. In order to facilitate connection, a hook 11 is provided on the leakproof cover 6, and the connector is a flexible connector that connects the hooks 11 at both ends. When specifically selected, the flexible connector is a spring 12, and the leakproof covers 6 at both ends of the valve body 1 are connected together by the spring 12. After connection, the spring 12 maintains a certain amount of pulling.

[0030] In this embodiment, in order to facilitate the quick connection of the spring 12 to the hanging ear 11 , hooks 13 for hanging in the hanging ear 11 are provided at both ends of the spring 12 .

[0031] In this embodiment, a clamping step 14 is provided at the end of the bearing seat 5 to prevent the leakproof cover 6 from sliding out. Even if the leakproof cover 6 slides left and right, it cannot slide out of the bearing seat 5, and the anti-slip effect is better.

[0032] Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the art can use the above disclosed technical content to make many possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A leak-proof powder star-shaped discharge valve, comprising a valve body (1), a reduction motor (2), an impeller (3) and an impeller shaft (4), wherein the impeller (3) is mounted in the valve body (1), the impeller (3) is mounted on the impeller shaft (4), the impeller shaft (4) cooperates with bearing seats (5) at both ends of the valve body (1), the reduction motor (2) is mounted on one of the bearing seats (5) and is driven by the impeller shaft (4), and is characterized in that: At least one of the bearing seats (5) is provided with a leak-proof cover (6) on its outer cover for preventing dust leakage from the bearing seat (5).

2. The anti-leakage powder star-shaped discharge valve according to claim 1 is characterized in that: The leak-proof covers (6) are detachably sleeved on the bearing seats (5) at both ends of the valve body (1).

3. The anti-leakage powder star-shaped discharge valve according to claim 2 is characterized in that: The leakproof cover (6) is a polyhedral structure whose rotation can be restricted by a flange (10) on the valve body (1).

4. The anti-leakage powder star-shaped discharge valve according to claim 2, characterized in that: The leakproof cover (6) between the valve body (1) and the reduction motor (2) comprises a first half cover (7) and a second half cover (8) which are hinged to each other, and the first half cover (7) and the second half cover (8) are provided with sleeve grooves (9) which cooperate with the outer side wall of the bearing seat (5).

5. The anti-leakage powder star-shaped discharge valve according to claim 4, characterized in that: The leakproof covers (6) at both ends of the valve body (1) are connected and fixed via connecting pieces.

6. The anti-leakage powder star-shaped discharge valve according to claim 5, characterized in that: The leakproof cover (6) is provided with hanging ears (11), and the connecting piece is a flexible connecting piece that connects the hanging ears (11) at both ends of the valve body (1).

7. The anti-leakage powder star-shaped discharge valve according to claim 6, characterized in that: The flexible connection element is a spring (12).

8. The anti-leakage powder star-shaped discharge valve according to claim 7, characterized in that: Hooks (13) for hanging in the hanging ears (11) are provided at both ends of the spring (12).

9. The anti-leakage powder star-shaped discharge valve according to any one of claims 1 to 8, characterized in that: The end of the bearing seat (5) is provided with a clamping step (14) which can prevent the leakproof cover (6) from sliding out.

10. The anti-leakage powder star-shaped discharge valve according to any one of claims 1 to 8, characterized in that: The leak-proof cover (6) is a transparent shell structure.

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