Airflow screen convenient to clean and maintain

Abstract

The utility model discloses an airflow screen convenient to clean and maintain, relates to the field of airflow screens, aims to solve the problem that a screen drum is extremely inconvenient to maintain in the prior art, and adopts the technical scheme that a sliding sleeve is arranged on an airflow screen body, the sliding sleeve is connected to the body or a bottom frame, and a sliding rod is connected in the sliding sleeve in a sliding manner; the sliding direction of the sliding rods is parallel to the axis of the screen body. The end socket is detachably connected to the screen body and hinged to the sliding rod, and the screen drum is detachably connected to the end socket. The end socket is hinged to the sliding rod, the sliding rod is slidably connected in the sliding sleeve installed on the airflow screen body or the bottom frame, and the screen drum is detachably connected in the end socket, so that when maintenance is needed, only the joint of the end socket and the airflow screen body needs to be opened, the end socket is pulled outwards, and the end socket is rotated after the screen drum leaves the screen body; a sufficient operation space can be provided for cleaning and replacing the screen, and the connection stability in the use process is ensured while the disassembly and assembly process is more convenient through a bolt connection connection structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to airflow screen technical field, concretely is an airflow screen convenient for cleaning and maintaining. BACKGROUND

[0002] Airflow screen is a kind of screening machine using air flow to screen material, air flow is generated by wind wheel, material is blown apart in screen cylinder, fine material leaves from fine material discharge port after passing through screen mesh of screen cylinder, coarse material leaves from coarse material discharge port after passing through screen cylinder along the axis of screen cylinder.After using for a period of time, the screen cylinder inside airflow screen needs to be cleaned and maintained, but the existing airflow screen filter cylinder is extremely inconvenient to disassemble, and the maintenance work is time-consuming and laborious. CONTENT OF THE UTILITY MODEL

[0003] The utility model solves the technical problems to overcome the defects of the prior art, provide a kind of airflow screen convenient for cleaning and maintaining, can effectively solve the problems in the background art.

[0004] In order to achieve the above object, the utility model discloses a kind of airflow screen convenient for cleaning and maintaining, the technical scheme that the technical scheme is as follows: including chassis and body, the body includes screen body, the screen body is installed on the chassis, there is screen cylinder in the screen body, the screen cylinder front end is connected with feeding tube, the feeding tube is communicated with inlet, there is auger conveyor in the feeding tube, there is wind wheel in the screen body, the wind wheel and the auger conveyor auger shaft are coaxially connected, and are connected with motor, the screen body below is connected with fine material discharge port, the screen body is connected with head, the head below is connected with coarse material discharge port, end face is provided with discharge port, the coarse material discharge port is connected with the screen cylinder in the discharge port, the screen body is connected with air filter, further include sliding sleeve, the sliding sleeve is connected on the body or the chassis, sliding sleeve is slidably connected with slide rod in the sliding sleeve, the sliding direction of the slide rod is parallel with the screen body axis;The head is detachably connected on the screen body, the head and the slide rod are hinged, the screen cylinder is detachably connected on the head.When needing to replace screen cylinder, open the connecting structure between head and screen cylinder, pull out the head, make slide rod slide along sliding sleeve, after screen cylinder leaves screen body, rotate head, increase the operation space of cleaning or dismounting screen cylinder, carry out maintenance work.

[0005] As a preferred technical scheme of the utility model, the screen body is connected with the port of the head Positioning screw rod, the head has screw hole corresponding with the position of the positioning screw rod, the positioning screw rod and the screw hole are in sliding contact, the positioning screw rod is engaged with positioning nut, and the screen body and the head are locked. Disassemble positioning nut to separate head and screen body.

[0006] As a preferred technical scheme of the utility model, one end of the slide rod is connected with a hinge shaft through a C-shaped frame, the other end is connected with an end sleeve, the hinge shaft is rotationally connected with a hinge frame, and the end sleeve is connected with the hinge frame through a connecting plate.

[0007] As a preferred technical scheme of the utility model, a threaded hole is formed in the end of the end sleeve, a closing screw is engaged in the threaded hole, the end of the closing screw located in the end sleeve is hingedly connected with a closing plate, and the other end of the closing screw is connected with a hand wheel or a handle.

[0008] As a preferred technical scheme of the utility model, mounting holes are formed around the discharge port of the end sleeve, the mounting holes are internally threaded, bolt holes are formed in the mounting end plate of the screen cylinder, and mounting bolts are engaged in the mounting holes through the bolt holes.

[0009] As a preferred technical scheme of the utility model, an inlet sleeve is arranged at the inlet end of the screen cylinder, a feeding short pipe is arranged at the communication port of the screen body and the feeding pipe, the feeding short pipe is located in the screen body, and the inner wall of the inlet sleeve and the outer wall of the feeding short pipe are in sliding contact.

[0010] Compared with the prior art, the utility model has the beneficial effects that the end sleeve is hingedly connected to the slide rod, the slide rod is slidingly connected in the slide sleeve installed on the airflow screen body or the chassis, the screen cylinder is detachably connected in the end sleeve, when maintenance is needed, the connection between the end sleeve and the airflow screen body is opened, the end sleeve is pulled outwards, and the end sleeve is rotated after the screen cylinder is separated from the screen body, sufficient operation space is provided for cleaning and replacing the screen, the bolt connection structure can make the disassembly and assembly process more convenient, and the stability of the connection during use is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 The utility model structure schematic diagram is Figure 1 ;

[0012] Figure 2 The utility model structure schematic diagram is Figure 2 ;

[0013] Figure 3This is an enlarged structural diagram of point A in this utility model;

[0014] Figure 4 This is a schematic diagram of the structure of the end cap in the open state of this utility model. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure of the end cap in the open state of this utility model. Figure 6 ;

[0016] Figure 7 This is a schematic diagram of the head structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of this utility model. Figures 1 to 7 .

[0018] In the diagram: 1. Base frame; 2. Casters; 3. Screen body; 301. First ear plate; 302. Positioning screw; 4. Feed inlet; 5. Motor; 6. Feeding pipe; 7. Air filter; 8. Fine material outlet; 9. End cap; 901. Second ear plate; 902. Positioning nut; 903. Outlet; 904. Mounting hole; 10. Coarse material outlet; 11. Handwheel; 12. Mounting frame; 13. Sliding sleeve; 14. Sliding rod; 15. End sleeve; 16. Hinge shaft; 17. Hinge frame; 18. Connecting plate; 19. Observation window; 20. Screen cylinder; 2001. Mounting end plate; 2002. Free end plate; 2003. Inlet sleeve; 2004. Tie rod; 2005. Screen cylinder; 21. Sealing plate; 22. Sealing screw. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0020] like Figure 2 As shown, this utility model discloses an airflow screen that is easy to clean and maintain. The technical solution adopted includes a base frame 1, with casters 2 installed on the bottom surface of the base frame 1. A screen body 3 and a shaft cylinder are installed on the base frame 1. A feeding pipe 6 is installed between the screen body 3 and the shaft cylinder. The feeding pipe 6 has a three-way fitting, including a main pipe and a branch pipe. The main pipe is connected to the screen body 3 and the shaft cylinder. The branch pipe is vertically connected to the feed inlet 4. The section of the shaft cylinder away from the feeding pipe 6 is connected to the machine cover. A motor 5 is connected to the machine cover.

[0021] The inner circumference of the machine cover connects the drive sprocket and the driven sprocket. The output end of the motor 5 is connected to the reducer and then to the drive sprocket. A chain is fitted between the drive sprocket and the driven sprocket. The driven sprocket is coaxially connected to the drive shaft. After passing through the shaft cylinder, the drive shaft is coaxially connected to the auger in the main pipe of the feed pipe 6 and coaxially connected to the impeller in the screen body 3.

[0022] An air filter 7 is installed on the sieve body 3, and a sieve cylinder 20 is located in the sieve body 3.

[0023] In order to facilitate the maintenance of screen cylinder 20, such as Figure 3 , Figure 1 As shown, a first ear plate 301 is integrally formed on both sides of the end face where the screen body 3 and the end cap 9 meet. A positioning screw 302 is connected to the first ear plate 301. The two sides of the end cap 9 have a second ear plate 901 corresponding to the position of the first ear plate 301. A screw hole is opened on the second ear plate 901. After the positioning screw 302 is passed through the screw hole, a positioning nut 902 is installed on the positioning screw 302. The end cap 9 can be fixed on the screen body 3 by locking the positioning nut 902.

[0024] To facilitate maintenance and to ensure the screen cylinder 20 can be easily installed, such as Figure 6 , Figure 5 As shown, an mounting frame 12 is installed on the base frame 1. The mounting frame 12 is an L-shaped plate, including a vertical plate and a horizontal plate. The horizontal plate is connected to the base frame 1, and the vertical plate extends to the side of the screen body 3. Sliding sleeves 13 are provided on the outside of the vertical plate. There are four sliding sleeves 13, which are distributed in a rectangular arrangement in pairs. Sliding rods 14 are slidably connected inside them. There are two sliding rods 14, each of which passes through two sliding sleeves 13 and is arranged in parallel. Both can slide in the horizontal direction. One end of the slide rod 14 near the motor 5 is connected to an end sleeve 15. The end sleeves 15 of the two slide rods 14 are connected to prevent the slide rod 14 from sliding excessively and causing this end to disengage from the slide sleeve 13. The end of the slide rod 14 near the end cap 9 is connected to a C-shaped bracket. A hinge shaft 16 is vertically mounted on the C-shaped bracket. A hinge frame 17 is hinged to the hinge shaft 16. The hinge frame 17 has a connecting screw. The hinge frame 17 is connected to the end cap 9 through a connecting plate 18. A connecting hole is opened on the connecting plate 18. After the connecting screw passes through the connecting hole, it is locked by a connecting nut. A screw hole is opened on the connecting plate 18 corresponding to the position of the positioning screw 302 near the slide rod 14.

[0025] In order to make the coarse and fine material diversion, the two ends of the net cylinder 2005 are opened, the fine material outlet 8 is arranged below the screen body 3, the fine material of the net cylinder 2005 is discharged from the fine material outlet 8, the inner end face of the end cover 9 is provided with the discharge port 903, the discharge port 903 corresponds to the opening position of the end of the net cylinder 2005, the coarse material outlet 10 is connected below the end cover 9, and the coarse material outlet 10 and the discharge port 903 are communicated. In order to prevent the fine material from following the coarse material through the discharge port 903, the threaded hole is arranged on the outer end of the end cover 9, the closing screw 22 is engaged in the threaded hole, one end of the closing screw 22 is connected with the closing plate 21, the other end is connected with the hand wheel 11, and the closing plate 21 can block the discharge port 903. In order to seal the joint between the end cover 9 and the screen body 3, the O-ring is arranged on the end cover 9.

[0026] In order to facilitate the installation of the screen cylinder 20, the mounting hole 904 is arranged around the discharge port 903, the mounting hole 904 is internally threaded, and the screen cylinder 20, as shown in the figure, comprises a mounting end plate 2001 and a free end plate 2002. Figure 5 The mounting end plate 2001 is provided with a bolt hole corresponding to the mounting hole 904, and the screen cylinder 20 can be connected with the end cover 9 by using the mounting bolt to be screwed into the mounting hole 904 after passing through the bolt hole. The net cylinder 2005 is located between the mounting end plate 2001 and the free end plate 2002, the mounting end plate 2001 and the free end plate 2002 are both ring plates, and the two are connected through the pull rod 2004. In order to facilitate the support of the free end of the screen cylinder 20 during use, and to prevent material from leaking, the inlet sleeve 2003 is arranged on the inner ring outer end of the free end plate 2002, and the inlet short pipe is arranged on the inside of the material inlet of the screen body 3. The inlet sleeve 2003 can be sleeved on the inlet short pipe, and the inner wall of the inlet sleeve 2003 and the outer wall of the inlet short pipe are in sliding contact.

[0027] In order to facilitate the viewing of the accumulation of coarse material in the net cylinder 2005 and the blocking of the net cylinder 2005, the observation window 19 is arranged on the side of the screen body 3.

[0028] The working principle of the utility model is as follows:

[0029] The hand wheel 11 is screwed to block the discharge port 903 of the closing plate 21, the motor 5 is started, the material is poured into the material inlet 4, the material is sent into the screen body 3 by the auger, the wind wheel rotates to form an air current in the screen body 3, and the fine material passes through the net cylinder 2005 and is discharged from the fine material outlet 8.

[0030] When it is observed through the observation window 19 that a large amount of coarse material is accumulated in the net cylinder 2005, the pouring of the material from the material inlet 4 is stopped, the operation is continued for a period of time, more fine material is discharged from the fine material outlet 8, the hand wheel 11 is screwed, the closing plate 21 is opened, the material in the net cylinder 2005 is discharged from the discharge port 903 into the end cover 9 and then discharged from the coarse material outlet 10.

[0031] When the screen cylinder 2005 needs to be maintained by observing the observation window 19, make sure the motor 5 is in the off state, remove the positioning nut 902, pull the head 9 outward, slide the slide rod 14 along the slide sleeve 13, after the screen cylinder 20 is completely separated from the screen body 3, rotate the head 9 to the state shown in the figure, remove the mounting bolt to remove the screen cylinder 20. ​

[0032] After the screen cylinder 20 is installed on the head 9 after maintenance, the screen cylinder 20 is returned to normal, the head 9 is reset, the wind wheel enters the screen cylinder 20, the inlet sleeve 2003 is sleeved on the feeding short pipe, and after the positioning screw rod 302 passes through the screw rod hole on the head 9, the positioning nut 902 is locked.

[0033] The circuit and mechanical connection involved in the utility model are common means adopted by those skilled in the art, and technical inspiration can be obtained through limited tests, which belongs to the public knowledge.

[0034] The components not described in detail in the present application are prior art.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.​

Claims

1. An air flow screen convenient for cleaning and maintenance, comprising a chassis (1), a screen body (3) mounted on the chassis (1), a screen cylinder (20) in the screen body (3), a feeding pipe (6) connected to the front end of the screen cylinder (20), a feeding inlet (4) communicated with the feeding pipe (6), an auger conveyor in the feeding pipe (6), a wind wheel in the screen body (3), the wind wheel coaxially connected with the auger shaft of the auger conveyor and connected with a motor (5), a fine material discharge outlet (8) connected below the screen body (3), an end cap (9) connected with the screen body (3), a coarse material discharge outlet (10) connected below the end cap (9), an outlet (903) formed on the end face, the coarse material discharge outlet (10) communicated with the screen cylinder (20) through the outlet (903), and an air filter (7) connected on the screen body (3). Also include a sliding sleeve (13), the sliding sleeve (13) is connected on the screen body (3) or the chassis (1), the sliding sleeve (13) is slidably connected with a slide rod (14), the sliding direction of the slide rod (14) is parallel to the axis of the screen body (3); the head (9) is detachably connected on the screen body (3), the head (9) and the slide rod (14) are hinged, the screen cylinder (20) is detachably connected on the head (9).

2. An airflow screen that facilitates cleaning maintenance in accordance with claim 1, wherein: The screen body (3) is connected to the port of the head (9), and the head (9) has a screw hole corresponding to the position of the positioning screw (302), the positioning screw (302) and the screw hole are in sliding contact, and the positioning screw (302) is engaged with a positioning nut (902), so that the screen body (3) and the head (9) are locked.

3. An airflow screen for ease of cleaning maintenance according to claim 1 or 2, characterised in that: One end of the slide rod (14) is connected with a hinge shaft (16) through a C-shaped frame, the other end is connected with an end sleeve (15), the hinge shaft (16) is rotatably connected with a hinge frame (17), and the head (9) is connected with the hinge frame (17) through a connecting plate (18).

4. An airflow screen that facilitates cleanout maintenance in accordance with claim 1 or 2, wherein: The end of the head (9) is provided with a threaded hole, the threaded hole is engaged with a closing screw (22), the closing screw (22) is connected with a closing plate (21) at the end in the head (9), and the other end is connected with a hand wheel (11) or a handle; the closing plate (21) and the discharge port (903) are in sliding contact.

5. An airflow screen that facilitates cleanout maintenance in accordance with claim 1 or 2, wherein: The discharge port (903) of the head (9) is provided with a mounting hole (904) around it, the mounting hole (904) has an internal thread, the mounting end plate (2001) of the screen cylinder (20) is provided with a bolt hole, and the mounting bolt is engaged in the mounting hole (904) through the bolt hole; the mounting end plate (2001) is located at the outlet end of the screen cylinder (20).

6. An airflow screen convenient to clean and maintain according to claim 5, characterized in that: The inlet end of the screen cylinder (20) has an inlet sleeve (2003), the screen body (3) and the feeding pipe (6) have a communication port, the inlet short pipe is located in the screen body (3), and the inner wall of the inlet sleeve (2003) and the outer wall of the inlet short pipe are in sliding contact.

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