Star-shaped rotary valve

Abstract

The utility model relates to a rotary valve, in particular to a star-shaped rotary valve which solves the problems that when an existing rotary valve is used, powder in a valve body easily intrudes into a bearing used for supporting a valve element, operation clamping stagnation is easily caused, and the powder adhered to the inner wall of the valve body easily causes deformation of the valve body when a blade rotates. The material blocking plates are arranged at the two ends of the material separating plate, and the outer edges of the material blocking plates are close to the inner wall of the valve body, so that products are prevented from diffusing and entering the bearing; scraping plates are arranged at the outer ends of the partition plates, one ends of the scraping plates are connected with the partition plates, the other ends of the scraping plates incline towards the rotating direction of the valve element and are arranged close to the inner wall of the valve body, when the valve element rotates, the scraping plates scrape powder on the inner wall of the valve body into a cavity between every two adjacent partition plates, and the phenomenon that when the partition plates rotate in the valve body, the powder is scraped off is avoided. And the extrusion between the powder and the valve body avoids the deformation of the valve body after long-term use.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotary valve, concretely relates to a star rotary valve. BACKGROUND

[0002] In the packing operation of powder, the powder is transported through the pipeline, its principle is to pass high pressure gas into the pipeline, the powder moves under the push of high pressure gas, because the height difference of the discharge chute pipe is big, the powder will flow like water, cannot control the flow of powder, in order to control the flow of material, generally below the vertical chute pipe, will increase the equipment rotary valve, the valve body is provided with the feed pipe and the discharge pipe, the feed pipe is connected with the valve body, the discharge pipe is connected with the lower machinery, the falling speed of powder is controlled through the valve core in the valve body, the valve core generally is composed of rotary valve core and blade that is arranged on the outer wall of rotary valve core along the circumference, the rotary valve core is connected with the output shaft of motor, the motor rotates and drives the rotary valve core to rotate, rotates a certain angle every time, and a part of powder is released to the discharge pipe, the flow of powder is controlled by controlling the rotating speed of motor, but the powder in the valve body is easy to invade the bearing for supporting the valve core, is easy to cause the operation to be stuck, and the powder is also easy to adhere to the inner wall of valve body when rotating in the valve body, so that the powder adhered to the inner wall of valve body is easy to extrude the valve body when the blade rotates, and long-term use is easy to cause the deformation of valve body. CONTENT

[0003] The utility model discloses a star rotary valve, which solves the technical problems of the existing rotary valve, i.e., the powder in the valve body is easy to invade the bearing for supporting the valve core, is easy to cause the operation to be stuck, and the powder adhered to the inner wall of the valve body is easy to cause the deformation of the valve body when the blade rotates.

[0004] To achieve the above object, the utility model provides the following technical solving scheme:

[0005] A star rotary valve, comprising a valve body, a feed pipe, a discharge pipe and a motor, the valve body is a hollow structure, one end of which is provided with a motor, the output end of the motor is connected with a valve core, the valve core extends into the valve body, and a plurality of material separation plates are evenly distributed on the outer wall of the valve core in the circumferential direction, and the valve core is characterized in that:

[0006] The outer end of the material separation plate is provided with a material scraping plate, one end of the material scraping plate is connected with the material separation plate, the other end is inclined to the rotation direction of the valve core and is arranged close to the inner wall of the valve body;

[0007] Two material blocking plates are further sleeved on the outer wall of the valve core, and the two material blocking plates are respectively located at the two ends of the material separation plate and connected with the material separation plate, and the outer edge of the material blocking plate is arranged close to the inner wall of the valve body;

[0008] The feeding pipe is connected with the feeding port of the valve body, and the outlet of the discharging pipe is connected with the discharging port of the valve body.

[0009] Further, the speed reducer is connected with one end of the valve body, the output end of the motor is connected with the input end of the speed reducer, and the output end of the speed reducer is connected with the valve core.

[0010] Further, the eight baffle plates are circumferentially arranged on the outer wall of the valve core.

[0011] Further, the connecting flanges are arranged on both ends of the valve body, and the speed reducer is arranged on one end of the valve body through the connecting flange.

[0012] Further, the center hole is arranged in the center of the connecting flange, the bearing is arranged in the center hole, and the two ends of the valve core are rotatably connected with the two bearings respectively.

[0013] Further, the butt flange is arranged at the outlet end of the discharging pipe.

[0014] Further, the two support plates are arranged on the two sides of the discharging pipe, one end of the support plate is connected with the outer wall of the valve body, and the other end of the support plate is connected with the butt flange.

[0015] Further, the reinforcing plates are arranged on the two sides of the valve body, and each reinforcing plate is connected with the outer wall of the feeding pipe, the outer wall of the valve body, the outer wall of the discharging pipe and the butt flange.

[0016] Further, the two ends of the valve core are provided with the stepped mounting structures, the first stepped shaft is arranged close to the baffle plate, the diameter of the first stepped shaft is larger than that of the second stepped shaft, the dustproof ring is arranged on the first stepped shaft, one end of the dustproof ring is abutted with the shaft shoulder between the valve core and the first stepped shaft, and the other end of the dustproof ring is abutted with the inner side surface of the connecting flange, and the bearing is arranged on the second stepped shaft.

[0017] Compared with the prior art, the valve body has the advantages that:

[0018] (1) The star type rotary valve provided by the utility model is provided with two blocking plates on the outer wall of the valve core, the two blocking plates are respectively located at the two ends of the material separating plate and are connected with the material separating plate, the outer edge of the blocking plate is arranged close to the inner wall of the valve body, a plurality of cavities are formed between the adjacent material separating plates, the flow of the material in the inner cavity of the valve body is greatly blocked, the powder entering the inner part of the valve body will be gathered in the cavity formed by the plurality of material separating plates between the two blocking plates, the powder is prevented from diffusing everywhere and entering the bearing, the running is prevented from being stuck, and a material scraping plate is arranged at the outer end of the material separating plate, one end of the material scraping plate is connected with the material separating plate, the other end is inclined to the rotating direction of the valve core and is arranged close to the inner wall of the valve body, when the valve core rotates, the material scraping plate scrapes the powder on the inner wall of the valve body into the cavity between the adjacent two material separating plates, the extrusion between the powder and the valve body when the material separating plate rotates in the valve body is prevented, and the deformation of the valve body after long-term use is avoided.

[0019] (2) The star type rotary valve provided by the utility model increases the dustproof ring in the inner side of the bearing, and the dustproof ring is limited from moving in the axial position through the stepped installation structure, the erosion of the material to the bearing is effectively prevented, and the service life of the bearing is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a perspective structural schematic view of the star type rotary valve embodiment of the utility model;

[0021] Figure 2 It is a front view of the utility model embodiment;

[0022] Figure 3 It is Figure 2 A-A sectional view of the utility model;

[0023] Figure 4 It is Figure 2 The right view of the utility model;

[0024] Figure 5 It is Figure 4 B-B sectional view of the utility model;

[0025] The following is the explanation of the reference signs:

[0026] 1-valve body, 2-feed pipe, 3-discharge pipe, 4-motor, 5-reducer, 6-valve core, 61-first stepped shaft, 62-second stepped shaft; 7-material separating plate, 71-material scraping plate; 8-blocking plate, 9-bearing, 10-connection flange, 11-butting flange, 12-supporting plate, 13-strengthening plate, 14-dustproof ring. DETAILED DESCRIPTION

[0027] The utility model will be further explained in combination with the drawings and specific embodiments.

[0028] Refer to Figures 1-5The utility model discloses a star type rotary valve, including valve body 1, feed pipe 2, discharge pipe 3 and motor 4, valve body 1 is hollow structure, and its one end is closed, and the other end is equipped with speed reducer 5, and the output of motor 4 is connected with the input of speed reducer 5, and the output of speed reducer 5 is connected with valve core 6, and valve core 6 is inserted into valve body 1.

[0029] In order to realize the rotation support of valve core 6, the both ends of valve body 1 are equipped with connecting flange 10, the center hole is set up in the center position of two connecting flanges 10, bearing 9 is installed in the center hole, valve core 6 is rotatably connected with two bearings 9 respectively, and speed reducer 5 is installed in one end of valve body 1 through connecting flange 10.

[0030] Eight material separating plates 7 are arranged on the outer wall of valve core 6 along the circumference, which effectively ensures the equal relationship between the discharging speed and the rotating speed, so that the discharging speed can be controlled by adjusting the rotating speed of motor 4. The outer end of the material separating plate 7 is provided with a scraping plate 71, one end of the scraping plate 71 is connected with the material separating plate 7, and the other end is inclined to the rotating direction of the valve core 6 and is arranged close to the inner wall of the valve body 1. When the valve core 6 rotates, the scraping plate 71 scrapes the material adhered to the inner wall of the valve body 1 into the cavity between the adjacent two material separating plates 7, preventing the extrusion between the material and the valve body 1 when the material separating plate 7 rotates in the valve body 1.

[0031] Because the conventional rotary valve can invade the bearing 9 after the powder enters the valve body, causing operation stagnation, in this embodiment, two blocking plates 8 are sleeved on the outer wall of the valve core 6, the two blocking plates 8 are located at the two ends of the material separating plate 7 and connected with the material separating plate 7, the outer edge of the blocking plate 8 is arranged close to the inner wall of the valve body 1, and the feeding port and the discharging port are formed on the outer wall of the valve body 1 corresponding to the position of the material separating plate 7, the feeding port and the discharging port are arranged opposite to each other, so that the product is always blocked between the two blocking plates 8 whether it is feeding or discharging, and it will not spread to the position of the bearing 9, ensuring the stable operation of the bearing 9.

[0032] In order to further increase the dustproof performance of the bearing 9, step mounting structures are arranged at the two ends of the valve core 6, including first step shaft 61 and second step shaft 62, the first step shaft 61 is arranged close to the blocking plate 8, and the diameter of the first step shaft 61 is larger than that of the second step shaft 62, a dustproof ring 14 is sleeved on the first step shaft 61, one end of the dustproof ring 14 abuts against the shaft shoulder between the valve core 6 and the first step shaft 61, and the other end abuts against the inner side of the connecting flange 10, and the bearing 9 is sleeved on the second step shaft 62.

[0033] The outlet of the feed pipe 2 is connected to the feeding port, and the inlet of the discharge pipe 3 is connected to the discharging port, and a butt flange 11 is connected to one end of the outlet of the discharge pipe 3, which can be used for connecting with other equipment.

[0034] In order to improve the structural stability, two support plates 12 are arranged on both sides of the discharge pipe 3, one end of the support plate 12 is connected with the outer wall of the valve body 1, the other end is connected with the butt flange 11, and a reinforcing plate 13 is arranged on both sides of the valve body 1, each reinforcing plate 13 is connected with the outer wall of the feed pipe 2, the outer wall of the valve body 1, the outer wall of the discharge pipe 3 and the butt flange 11.

[0035] In use, the powder is transported from the pipeline to the feed pipe 2, enters the valve body 1 through the feed pipe 2, the motor 4 is started, the motor 4 drives the valve core 6 to rotate through the speed reducer 5, the powder enters the cavity between the adjacent baffles 7 in turn with the rotation of the baffles 7, if there is powder adhering to the inner wall of the valve body 1, the scraper plate 71 will scrape the powder adhering to the inner wall of the valve body 1 to the cavity between the adjacent two baffles 7 when the valve core 6 rotates, when the powder is transported to the discharge port, it enters the discharge pipe 3 from the discharge port, and finally enters other equipment connected with the discharge pipe 3, such as packing equipment, when it is necessary to adjust the discharging speed, the speed of the motor 4 can be changed.

[0036] The above-described embodiments are only used to describe the specific implementation of the present application, and do not limit the scope of the present application, without departing from the design spirit of the present application, various deformations and improvements of the technical scheme of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. A star-shaped rotary valve, comprising a valve body (1), an inlet pipe (2), an outlet pipe (3), and a motor (4), wherein the valve body (1) is a hollow structure, and a motor (4) is installed at one end, a valve core (6) is connected to the output end of the motor (4), the valve core (6) extends into the valve body (1), and a plurality of baffle plates (7) are evenly distributed circumferentially on the outer wall of the valve core (6), characterized in that: The outer end of the partition plate (7) is provided with a scraper plate (71). One end of the scraper plate (71) is connected to the partition plate (7), and the other end is inclined in the direction of rotation of the valve core (6) and is located close to the inner wall of the valve body (1). Two blocking plates (8) are also fitted on the outer wall of the valve core (6). The two blocking plates (8) are located at both ends of the partition plate (7) and connected to the partition plate (7). The outer edge of the blocking plate (8) is set close to the inner wall of the valve body (1). An inlet and an outlet are provided on the outer wall of the valve body (1) corresponding to the position of the baffle plate (7). The outlet of the inlet pipe (2) is connected to the inlet of the valve body, and the inlet of the outlet pipe (3) is connected to the outlet of the valve body (1).

2. The star-shaped rotary valve according to claim 1, characterized in that: It also includes a speed reducer (5), which is connected to one end of the valve body (1), the output end of the motor (4) is connected to the input end of the speed reducer (5), and the output end of the speed reducer (5) is connected to the valve core (6).

3. The star-shaped rotary valve according to claim 2, characterized in that: The separator plate (7) has eight plates evenly distributed circumferentially on the outer wall of the valve core (6).

4. The star-shaped rotary valve according to claim 3, characterized in that: Both ends of the valve body (1) are equipped with connecting flanges (10), and the reducer (5) is installed at one end of the valve body (1) through the connecting flanges (10).

5. The star-shaped rotary valve according to claim 4, characterized in that: The connecting flange (10) has a central hole, and a bearing (9) is installed in the central hole. The two ends of the valve core (6) are rotatably connected to the two bearings (9) respectively.

6. The star-shaped rotary valve according to claim 5, characterized in that: The outlet end of the discharge pipe (3) is connected to a mating flange (11).

7. The star-shaped rotary valve according to claim 6, characterized in that: Two support plates (12) are arranged opposite each other on both sides of the discharge pipe (3). One end of the support plate (12) is connected to the outer wall of the valve body (1), and the other end is connected to the docking flange (11).

8. The star-shaped rotary valve according to claim 7, characterized in that: It also includes reinforcing plates (13), which are arranged opposite to each other on both sides of the valve body (1), and each reinforcing plate (13) is connected to the outer wall of the feed pipe (2), the outer wall of the valve body (1), the outer wall of the discharge pipe (3), and the docking flange (11).

9. The star-shaped rotary valve according to claim 8, characterized in that: The valve core (6) has stepped mounting structures at both ends, including a first stepped shaft (61) and a second stepped shaft (62). The first stepped shaft (61) is located close to the blockage plate (8), and the diameter of the first stepped shaft (61) is larger than the diameter of the second stepped shaft (62). A dustproof ring (14) is fitted on the first stepped shaft (61). One end of the dustproof ring (14) abuts against the shoulder between the valve core (6) and the first stepped shaft (61), and the other end abuts against the inner side of the connecting flange (10). The bearing (9) is fitted on the second stepped shaft (62).

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