Self-balancing splayed screen supported by air spring

Abstract

The utility model discloses a self-balancing splayed screen supported by air springs, relates to the technical field of vibrating screens, and aims to solve the problems that parts are seriously damaged, the machining precision is uncontrollable and the strength is seriously reduced under long-term efficient operation in the prior art. A first discharging port and a second discharging port are formed in the two sides of the screen box respectively, screen cloth in the screen box is arranged in a splayed shape, vibrating mechanisms are arranged on the two sides of the screen box, a base is arranged below the screen box and connected with the screen box through an air spring, a piston is slidably connected into the air spring, and a push rod is arranged on the piston and connected with the bottom of the screen box. According to the vibrating screen, due to the fact that the air spring is arranged, the pressure difference exists on the two sides of the piston during vibration, damage and abrasion to the internal structure of a part are reduced, the ultrasonic sensor is arranged, automatic leveling of the screen is achieved, and the supporting rigidity can be adjusted when necessary.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, in particular to a self-balancing eight-shaped screen supported by an air spring. Background Art

[0002] In the process of screening materials, the existing vibrating screens have serious changes in the internal metal structures of springs, bearings, beams, and screen frames after long-term use. The vibrating screens have disadvantages such as forced interruption of work and low work efficiency to varying degrees. In actual use, the existing vibrating screens have serious parts damage under long-term and high-efficiency operation, the processing accuracy is uncontrollable, and the strength is seriously reduced. This has become a problem that needs to be urgently solved in the development of vibrating screen technology. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a self-balancing eight-shaped screen supported by air springs, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above-mentioned purpose, the utility model discloses a self-balancing eight-shaped screen supported by an air spring, and the technical solution adopted is that it comprises a screen box. The screen box is a trapezoidal shell with an inclined bottom, a dividing block is provided in the middle of the screen box, a first discharge port and a second discharge port are respectively provided on both sides of the screen box, a screen mesh is detachably connected inside the screen box, and the screen mesh is arranged in an eight-shaped shape, an upper screen frame is provided on the screen box above the screen mesh, a vibration mechanism is provided on both sides of the screen box, a base is provided below the screen box, the base and the screen box are connected through an air spring, the air spring comprises a main body, a first air vent is provided on the lower side of the main body, a second air vent is provided on the upper side of the main body, an inner cavity is provided inside the main body, the first air vent, the second air vent and the inner cavity are connected, the first air vent is connected to a first air pump, the second air vent is connected to a second air pump, a piston is slidably connected inside the inner cavity, a push rod is provided on the piston, and the push rod is connected to the bottom of the screen box, an ultrasonic sensor is provided on the base, a control box is provided outside the screen box, a control panel is provided on the control box, a controller is provided in the control box, a microprocessor is provided in the controller, and the control panel, the ultrasonic sensor, the first air pump, the second air pump and the drive motor are electrically connected to the controller.

[0005] As a preferred technical solution of the utility model, the screen is fixed to the inside of the screen box by bolts, the screen is connected to the dividing block and the first discharge port, the screen is coplanar with the dividing block and the first discharge port, the dividing block can separate the material from both sides for screening, and the screen is made of polyurethane.

[0006] As an optimal technical solution of the utility model, the vibration mechanism includes a driving motor, a bearing seat is provided on the screen box on the left side of the driving motor, a driving rod is rotatably connected to the bearing seat, the driving rod is connected to the output shaft of the driving motor, an eccentric block is provided on the driving rod, and the driving motor drives the driving rod to rotate, thereby driving the eccentric block to rotate, generating centrifugal force and realizing vibration.

[0007] As a preferred technical solution of the utility model, a feed port is provided on the upper screen frame, and the feed port is located at a relative position to the dividing block.

[0008] As a preferred technical solution of the utility model, a buffer sleeve is provided between the push rod and the main body, and the buffer sleeve is used to reduce the friction between the push rod and the main body.

[0009] Compared with the prior art, the utility model has the following beneficial effects: by setting the air spring, the utility model realizes the buffering effect by the pressure difference on both sides of the piston during vibration, thereby realizing adjustable stiffness, improving screening efficiency, greatly reducing workload, reducing time consumption, and reducing damage and wear of internal structures of parts, thereby increasing the service life of workpieces and reducing noise; by setting the ultrasonic sensor, automatic leveling of the screen can be achieved, and the support stiffness can be adjusted according to the control panel and the controller when necessary. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is the front view of the structure of the utility model;

[0012] Figure 3 This is a top view of the structure of the utility model;

[0013] Figure 4 This is an exploded view of the structure of the utility model;

[0014] Figure 5 This is a schematic diagram of the internal structure of the screen box of the utility model;

[0015] Figure 6 This is a schematic diagram of the air spring of the utility model;

[0016] Figure 7 This is the AA cross-sectional view of the utility model;

[0017] Figure 8 This is a schematic diagram of the working process of the air spring of the utility model.

[0018] In the figure: 1. screen box; 101. upper screen frame; 102. screen; 103. first discharge port; 104. second discharge port; 105. dividing block; 106. feed port; 2. base; 3. drive motor; 4. bearing seat; 5. drive rod; 501. eccentric block; 6. air spring; 601. first air vent; 602. second air vent; 603. inner cavity; 604. piston; 605. push rod; 606. buffer sleeve; 607. main body; 7. ultrasonic sensor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0020] like Figures 1 to 8As shown, the utility model discloses a self-balancing eight-shaped screen supported by an air spring, and the technical scheme adopted is that it comprises a screen box 1, the screen box 1 is a trapezoidal shell with an inclined bottom, a material dividing block 105 is arranged in the middle of the screen box 1, a first discharge port 103 and a second discharge port 104 are arranged on both sides of the screen box 1, a screen 102 is detachably connected to the inside of the screen box 1 by bolts, and the screen 102 is arranged in an eight-shaped shape, one end of the screen 102 is connected to the material dividing block 105, and the other end of the screen 102 is connected to the first discharge port 103, and the screen 102, the first discharge port 103 and the second discharge port 104 are arranged on both sides of the screen box 1. A discharge port 103 and the surface of the dividing block 105 are coplanar, an upper screen frame 101 is provided on the screen box 1 above the screen mesh 102, a feed port 106 is provided on the upper screen frame 101, and the feed port 106 and the dividing block 105 are located in a corresponding position, and a vibration mechanism is provided on both sides of the screen box 1, and the vibration mechanism includes a drive motor 3, and the drive motor 3 is connected to the screen box 1, and a bearing seat 4 is provided on the screen box 1 on the left side of the drive motor 3, and a drive rod 5 is rotatably connected in the bearing seat 4, and the drive rod 5 is connected to the output shaft of the drive motor 3, and the drive rod 5 A plurality of eccentric blocks 501 are arranged on the screen box 1, a base 2 is arranged below the screen box 1, an air spring 6 is arranged on the base 2, the base 2 and the screen box 1 are connected through the air spring 6, the air spring 6 comprises a main body 607, an inner cavity 603 is arranged inside the main body 607, a first air vent 601 is arranged on the lower side of the main body 607, a second air vent 602 is arranged on the upper side of the main body 607, the first air vent 601 and the second air vent 602 are connected to the inner cavity 603, the first air vent 601 is connected to a first air pump, and the second air vent 602 is connected to a second An air pump, the inner cavity 603 is slidably connected to a piston 604, a push rod 605 is provided on the piston 604, a buffer sleeve 606 is provided between the push rod 605 and the main body 607, the push rod 605 is connected to the bottom of the screen box 1, a plurality of ultrasonic sensors 7 are provided on the base 2, a control box is provided outside the screen box 1, a control box is provided on the control box, a controller is provided in the control box, a microprocessor is provided in the controller, the control panel, the ultrasonic sensor 7, the first air pump, the second air pump and the drive motor 3 are electrically connected to the controller.

[0021] The working principle of the utility model is as follows: by operating the control panel, the first air pump and the second air pump are controlled to push the piston 604 to the middle of the inner cavity 603. Figure 8As shown, the drive motor 3 is started to drive the eccentric block 501 to rotate and generate centrifugal force, which drives the screen box 1 to vibrate, and the material is poured in from the feed port 106. The dividing block 105 separates the material to both sides of the screen box 1. Since the screen 102 is arranged in an eight-shaped shape, the material is screened through the screen 102 under vibration. The large pieces of material are located above the screen 102 and discharged from the first discharge port 103. The small pieces of material after screening are discharged from the second discharge port 104 to achieve screening. The ultrasonic sensor 7 and the controller analyze the distance between the screen box 1 and the ultrasonic sensor 7. If the distance is small relative to other ultrasonic sensors 7, the power of the first air pump is automatically increased to push the piston 604 and the push rod 605 upward, and the push rod 605 pushes the screen box 1 upward to achieve automatic leveling.

[0022] The circuits and mechanical connections involved in the present utility model are conventional means used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments, which belong to common knowledge.

[0023] Components not described in detail herein are prior art.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-balancing eight-shaped screen supported by an air spring, comprising a screen box (1), characterized in that: The screen box (1) is a trapezoidal shell with an inclined bottom. A material dividing block (105) is provided in the middle of the screen box (1). A first discharge port (103) and a second discharge port (104) are respectively provided on both sides of the screen box (1). A detachable screen (102) is provided inside the screen box (1). The screen (102) is arranged in an "eight" shape. An upper screen frame (101) is provided on the screen box (1) above the screen (102). Vibration mechanisms are provided on both sides of the screen box (1). A base (2) is provided below the screen box (1). The base (2) is connected to the screen box (1) via an air spring (6). The air spring (6) comprises a main body (607). A first air vent (601) is provided on the lower side of the main body (607). A second air vent (602) is provided on the upper side of the main body (607). (607) has an inner cavity (603) therein, the first vent (601), the second vent (602) and the inner cavity (603) are in communication, the first vent (601) is connected to a first air pump, the second vent (602) is connected to a second air pump, the inner cavity (603) is slidably connected to a piston (604), the piston (604) is provided with a push rod (605), the push rod (605) is connected to the bottom of the screen box (1), an ultrasonic sensor (7) is provided on the base (2), a control box is provided outside the screen box (1), a control box has a control panel, a controller is provided in the control box, a microprocessor is provided in the controller, the control panel, the ultrasonic sensor (7), the first air pump, the second air pump and the vibration mechanism are electrically connected to the controller.

2. The self-balancing eight-shaped screen supported by air springs according to claim 1, characterized in that: The screen (102) is fixed to the inside of the screen box (1) by means of bolts, the screen (102) is connected to the dividing block (105) and the first discharge port (103), and the screen (102) is coplanar with the dividing block (105) and the first discharge port (103).

3. The self-balancing eight-shaped screen supported by air springs according to claim 1, characterized in that: The vibration mechanism comprises a drive motor (3), a bearing seat (4) is provided on the screen box (1) on the left side of the drive motor (3), a drive rod (5) is rotatably connected to the bearing seat (4), the drive rod (5) is connected to the output shaft of the drive motor (3), and an eccentric block (501) is provided on the drive rod (5).

4. The self-balancing eight-shaped screen supported by air springs according to claim 2, characterized in that: The upper screen frame (101) is provided with a feed inlet (106), and the feed inlet (106) is located at a position opposite to the dividing block (105).

5. The self-balancing eight-shaped screen supported by air springs according to claim 1, characterized in that: A buffer sleeve (606) is provided between the push rod (605) and the main body (607).

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