Buffer device of vibrating screen

Abstract

The buffering device of the vibrating screen comprises a screen box, the top of the screen box is fixedly connected with a feeding pipe, a vibrating motor is arranged on the right side of the screen box, buffering boxes are fixedly connected to the front ends and the rear ends of the bottoms of the two sides of an inner cavity of the screen box, and buffering columns are fixedly connected to the bottoms of inner cavities of the buffering boxes. Springs are fixedly connected to the bottom of an inner cavity of the buffering box, buffering plates are fixedly connected to the tops of the springs, and connecting plates are fixedly connected to the tops of the buffering plates. The air cylinders are arranged at the top and the bottom of the sieve plate, the air cylinders can push the limiting plates to limit the sieve plate, and meanwhile limiting can be canceled when disassembly is needed, so that the sieve plate is convenient to disassemble and maintain, the requirements of users are met, materials have impact force on the sieve plate in the feeding process, and the sieve plate cannot be damaged. And the sieve plate applies pressure to the buffer columns and the springs through the shell, the connecting plate and the buffer plate, and the buffer effect is achieved through mutual cooperation of the buffer columns and the springs.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, in particular to a buffer device for vibrating screens. Background Art

[0002] The vibrating screen works by using the reciprocating vibration generated by the vibrator excitation. The upper rotating weight of the vibrator makes the screen surface produce a plane gyration vibration, while the lower rotating weight makes the screen surface produce a conical gyration vibration. The combined effect makes the screen surface produce a complex gyration vibration. Its vibration trajectory is a complex space curve. The curve is projected as a circle on the horizontal plane and an ellipse on the vertical plane. The amplitude can be changed by adjusting the exciting force of the upper and lower rotating weights. By adjusting the spatial phase angle of the upper and lower weights, the curve shape of the screen surface motion trajectory and the motion trajectory of the material on the screen surface can be changed. The vibrating screen feed will have an impact force when it falls on the screen plate, and a buffer device is needed to buffer it.

[0003] The existing buffer device does not have the function of facilitating the removal of the screen plate, so the screen plate cannot be conveniently removed for maintenance. Failure to perform regular maintenance will reduce the use effect of the screen plate and easily cause damage to the screen plate, thereby failing to meet the needs of users. For this reason, we propose a buffer device for a vibrating screen to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a buffer device for a vibrating screen, which has the advantage of easy disassembly of the screen plate, and solves the problem that the existing buffer device does not have the function of easy disassembly of the screen plate, so that the screen plate cannot be conveniently removed for maintenance. The failure to perform regular maintenance will reduce the use effect of the screen plate and easily cause damage to the screen plate, thereby failing to meet the needs of users.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a buffer device for a vibrating screen, comprising a screen box, a feed pipe is fixedly connected to the top of the screen box, a vibration motor is arranged on the right side of the screen box, buffer boxes are fixedly connected to the front and rear ends of the bottom of the inner cavity of the screen box on both sides, a buffer column is fixedly connected to the bottom of the inner cavity of the buffer box, a spring is fixedly connected to the bottom of the inner cavity of the buffer box, a buffer plate is fixedly connected to the top of the spring, a connecting plate is fixedly connected to the top of the buffer plate, a shell is fixedly connected to the top and bottom of the inner cavity of the shell, a cylinder is fixedly connected to the output end of the cylinder, a limit plate is fixedly connected to the inner side of the limit plate, and a screen plate is arranged.

[0006] As a preferred solution, a collecting box is provided at the bottom of the inner cavity of the screen box, and a protective pad is provided on the inner surface of the collecting box.

[0007] As a preferred solution, first sliders are fixedly connected to both sides of the limit plate, slide rails are fixedly connected to the top and bottom of both sides of the shell cavity, and the outer surface of the first slider is slidably connected to the inner surface of the slide rail.

[0008] As a preferred solution, support legs are fixedly connected to the four sides of the bottom of the screen box, and anti-slip pads are fixedly connected to the bottoms of the support legs.

[0009] As a preferred solution, a through opening is provided on the top of the buffer box, and the width of the through opening is greater than the width of the connecting plate.

[0010] As a preferred solution, the front and rear sides of the buffer plate are fixedly connected with second sliders, the front and rear sides of the inner cavity of the buffer box are provided with slide grooves, and the outer surface of the second slider is slidably connected to the inner surface of the slide groove.

[0011] As a preferred solution, a movable door is provided on the front of the screen box, and a handle is fixedly connected to the front of the movable door.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model arranges cylinders at the top and bottom of the sieve plate, and the cylinders can push the limit plates to limit the sieve plate. At the same time, the limit can be cancelled when disassembly is required, so as to facilitate the disassembly and maintenance of the sieve plate and meet the needs of users. When feeding, the material will have an impact force on the sieve plate, and the sieve plate applies pressure to the buffer column and the spring through the shell, the connecting plate and the buffer plate, and the buffer column and the spring cooperate with each other to achieve a buffering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a cross-sectional view of the shell structure of the utility model;

[0016] Figure 3 This is a cross-sectional view of the buffer box structure of the utility model.

[0017] In the figure: 1. screen box; 2. feed pipe; 3. vibration motor; 4. collection box; 5. support leg; 6. buffer box; 7. connecting plate; 8. screen plate; 9. shell; 10. first slider; 11. slide rail; 12. cylinder; 13. limit plate; 14. buffer plate; 15. buffer column; 16. spring; 17. slide groove; 18. second slider. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-3 The utility model discloses a buffer device for a vibrating screen, comprising a screen box 1, a feed pipe 2 is fixedly connected to the top of the screen box 1, a vibration motor 3 is arranged on the right side of the screen box 1, buffer boxes 6 are fixedly connected to the front and rear ends of the bottom of the inner cavity of the screen box 1, a buffer column 15 is fixedly connected to the bottom of the inner cavity of the buffer box 6, a spring 16 is fixedly connected to the bottom of the inner cavity of the buffer box 6, a buffer plate 14 is fixedly connected to the top of the spring 16, a connecting plate 7 is fixedly connected to the top of the connecting plate 7, a shell 9 is fixedly connected to the top and bottom of the inner cavity of the shell 9, a cylinder 12 is fixedly connected to the output end of the cylinder 12, and a screen plate 8 is arranged on the inner side of the limiting plate 13.

[0020] A collecting box 4 is arranged at the bottom of the inner cavity of the screen box 1 , and a protective pad is arranged on the inner surface of the collecting box 4 .

[0021] Through the above technical solution, the screened materials can be conveniently collected by the provided collecting box 4, and the provided protective pad can protect the collecting box 4.

[0022] The first sliders 10 are fixedly connected to both sides of the limiting plate 13 , the top and bottom of both sides of the inner cavity of the shell 9 are fixedly connected to the slide rails 11 , and the outer surface of the first slider 10 is slidably connected to the inner surface of the slide rail 11 .

[0023] Through the above technical solution, by providing the first sliding block 10 and the sliding rail 11, the limiting plate 13 can be made more stable when moving up and down.

[0024] Support legs 5 are fixedly connected to the four sides of the bottom of the screen box 1, and anti-skid pads are fixedly connected to the bottoms of the support legs 5.

[0025] Through the above technical solution, the support leg 5 can play a supporting role, and the anti-skid pad can play an anti-skid role for the support leg 5.

[0026] The top of the buffer box 6 is provided with a through opening, and the width of the through opening is greater than the width of the connecting plate 7 .

[0027] Through the above technical solution, the opening is used to facilitate the connection plate 7 to move up and down.

[0028] The buffer plate 14 is fixedly connected to the front and rear sides with second sliders 18 , and the buffer box 6 is provided with slide grooves 17 on the front and rear sides of the inner cavity. The outer surface of the second slider 18 is slidably connected to the inner surface of the slide groove 17 .

[0029] Through the above technical solution, by providing the second sliding block 18 and the sliding groove 17, the buffer plate 14 can be made more stable when moving up and down.

[0030] A movable door is provided on the front of the screen box 1, and a handle is fixedly connected to the front of the movable door.

[0031] Through the above technical solution, the internal parts of the screen box 1 can be easily taken out through the provided movable door and handle.

[0032] The working principle of the utility model is: first, the material enters the sieve plate 8 in the screen box 1 through the feed pipe 2, and at the same time, there is an impact force on the sieve plate 8, the sieve plate 8 exerts pressure on the shell 9, the shell 9 exerts pressure on the connecting plate 7, the connecting plate 7 exerts pressure on the buffer plate 14, and the buffer plate 14 exerts pressure on the buffer column 15 and the spring 16. Through the mutual cooperation of the buffer column 15 and the spring 16, a buffering effect is achieved, and then the vibration motor 3 is turned on, and the vibration motor 3 drives the screen box 1 and the sieve plate 8 to vibrate, which can achieve a screening effect, and then when the sieve plate 8 needs to be disassembled for maintenance, the cylinder 12 is opened through the external controller, and the cylinder 12 drives the limit plate 13 to move outward, thereby canceling the limit on the sieve plate 8, and then the movable door on the front of the screen box 1 is opened to pull out the sieve plate 8.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A buffer device for a vibrating screen, comprising a screen box (1), characterized in that: The top of the screen box (1) is fixedly connected to a feed pipe (2), a vibration motor (3) is arranged on the right side of the screen box (1), the front and rear ends of the bottom of the inner cavity of the screen box (1) are fixedly connected to buffer boxes (6), the bottom of the inner cavity of the buffer box (6) is fixedly connected to a buffer column (15), the bottom of the inner cavity of the buffer box (6) is fixedly connected to a spring (16), the top of the spring (16) is fixedly connected to a buffer plate (14), the top of the buffer plate (14) is fixedly connected to a connecting plate (7), the top of the connecting plate (7) is fixedly connected to a shell (9), the top and bottom of the inner cavity of the shell (9) are fixedly connected to a cylinder (12), the output end of the cylinder (12) is fixedly connected to a limit plate (13), and a screen plate (8) is arranged on the inner side of the limit plate (13).

2. A buffer device for a vibrating screen according to claim 1, characterized in that: A collecting box (4) is arranged at the bottom of the inner cavity of the screen box (1), and a protective pad is arranged on the inner surface of the collecting box (4).

3. A buffer device for a vibrating screen according to claim 1, characterized in that: The first sliders (10) are fixedly connected to both sides of the limit plate (13), the top and bottom of both sides of the inner cavity of the shell (9) are fixedly connected to the slide rails (11), and the outer surface of the first slider (10) is slidably connected to the inner surface of the slide rail (11).

4. The buffer device of a vibrating screen according to claim 1, characterized in that: Support legs (5) are fixedly connected to the four sides of the bottom of the screen box (1), and anti-slip pads are fixedly connected to the bottoms of the support legs (5).

5. The buffer device of a vibrating screen according to claim 1, characterized in that: The top of the buffer box (6) is provided with a through opening, and the width of the through opening is greater than the width of the connecting plate (7).

6. The buffer device of a vibrating screen according to claim 1, characterized in that: The buffer plate (14) is fixedly connected to a second slider (18) on both the front and rear sides, the buffer box (6) is provided with a slide groove (17) on both the front and rear sides of the inner cavity, and the outer surface of the second slider (18) is slidably connected to the inner surface of the slide groove (17).

7. The buffer device of a vibrating screen according to claim 1, characterized in that: The front of the screen box (1) is provided with a movable door, and the front of the movable door is fixedly connected with a handle.

Images