Vibrating screen mesh positioning and fixing device

Abstract

The utility model discloses a vibrating screen mesh positioning and fixing device in the technical field of screen meshes, which comprises a base, a mounting frame, a feed hopper, a screen mesh, a mounting plate and a motor, a transmission shaft is arranged at the lower part in the mounting frame, a lug is arranged on the transmission shaft, the screen mesh is mounted in the middle in the mounting frame, rotating shafts are arranged at two ends of the screen mesh, and the motor is arranged on the mounting plate. A mounting hole matched with the rotating shaft is formed in the mounting plate, a mounting groove is formed in the mounting hole, balls are arranged in the mounting groove, an arc-shaped plate is arranged at the bottom of the screen, a square rod is arranged at the right end of the transmission shaft, a sliding block is arranged on the square rod, and a connecting shaft is arranged at the right end of the square rod; the screen is fixed to the mounting frame through the rotating shaft, the protruding blocks rotate along with the transmission shaft to vibrate one end of the screen, the other end of the screen only needs to be matched with the balls through the rotating shaft to rotate, the screen is more stable in the material vibration screening process, and the connection loosening condition is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of screen meshes, in particular to a vibrating screen mesh positioning and fixing device. Background Art

[0002] Screens are generally used for screening sand and gravel in construction or for screening ores in mines. In order to quickly screen construction materials or ores, existing screens can generally vibrate to screen materials. For example, a multi-stage vibrating screen disclosed in Chinese patent literature (patent number: CN201821904769.6) adjusts the vibration frequency of the screen by sliding the second connecting plate on the sliding disk. Although the second connecting plate can be slidably adjusted, no structure is set to position and fix the second connecting plate. During the vibration of the screen, once the second connecting plate is displaced, it will affect the vibration of the screen, and the screen is fixed on the top of the slide rod. During the vibration process of the screen, the slide rod is required to complete the vibration. The screen vibrates for a long time to screen materials, which easily causes the connection between the slide rod and the screen to loosen.

[0003] To this end, we propose a vibrating screen positioning and fixing device. Utility Model Content

[0004] The purpose of the utility model is to provide a vibrating screen positioning and fixing device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vibrating screen positioning and fixing device, comprising a base, a mounting frame, a feed hopper, a screen, a mounting plate and a motor, a motor transmission shaft is arranged at the left end of the motor, a transmission shaft is arranged at the lower part of the mounting frame, a protrusion is arranged on the transmission shaft, the screen is installed in the middle part of the mounting frame, rotating shafts are arranged at both ends of the screen, mounting holes matching the rotating shafts are arranged on the mounting plate, mounting grooves are arranged in the mounting holes, balls are arranged in the mounting grooves, an arc plate is arranged at the bottom of the screen, a square rod is arranged at the right end of the transmission shaft, a slider is arranged on the square rod, a connecting shaft is arranged at the right end of the square rod, a motor transmission shaft is arranged at the left end of the motor, a first driving gear and a second driving gear are arranged on the motor transmission shaft, a first driven gear and a second driven gear are arranged on the slider, a paddle is arranged on the top of the first driven gear, and a push rod is arranged at the right end of the paddle.

[0006] Preferably, the mounting frame is provided with a through hole matching with the push rod, the top of the push rod is provided with a slot, the top of the through hole is provided with a mounting opening, a positioning rod is provided in the mounting opening, a spring is provided at the top of the positioning rod, a through slot is provided on the right side of the mounting opening, and a lever is provided on the upper right side of the positioning rod.

[0007] Preferably, a square hole matching with the square rod is provided in the middle of the sliding block.

[0008] Preferably, the first driving gear matches with the first driven gear, the second driving gear matches with the second driven gear, and the distance between the first driving gear and the second driving gear is greater than the distance between the first driven gear and the second driven gear.

[0009] Preferably, the left end of the motor transmission shaft passes through the mounting frame, and the motor transmission shaft and the mounting frame are movably connected, and a motor bracket is provided at the bottom of the motor.

[0010] Preferably, the card slots are provided in two groups, left and right.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. A rotating shaft is arranged at one end of the screen, and three groups of balls arranged in the mounting hole cooperate with the rotating shaft. The three groups of balls can not only ensure the rotation of the rotating shaft, but also reduce the friction between the rotating shaft and the inner wall of the mounting hole, so that the friction force received during the rotation is minimized, so that the screen can be more smoothly aggregated in the process of vibrating and screening materials. The screen is fixed on the mounting frame through the rotating shaft, and the bump follows the rotation of the transmission shaft to vibrate one end of the screen, and the other end of the screen only needs to be rotated through the cooperation of the rotating shaft and the balls, so that the screen is more stable in the process of vibrating and screening materials, and there will be no loose connection.

[0013] 2. The push rod drives the first driven gear to move to the left through the paddle, and the first driven gear drives the second driven gear to move to the left through the slider, and moves the slider to the leftmost side of the square rod. At this time, the first driven gear will be disengaged from the first driving gear, and the second driven gear will mesh with the second driving gear. The diameter of the second driving gear is larger than that of the second driven paper wheel, so the second driving gear accelerates the rotation of the second driven gear, thereby accelerating the rotation speed of the transmission shaft, increasing the pushing frequency of the bump on the screen, and accelerating the vibration frequency of the screen. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 It is the left view of the utility model;

[0016] Figure 3 This is an enlarged view of point A of the utility model;

[0017] Figure 4 This is an enlarged view of the utility model B;

[0018] Figure 5 This is a schematic diagram of the shaft installation structure of the utility model;

[0019] Figure 6 This is a schematic diagram of the position structure of the convex block and the arc plate of the utility model;

[0020] Figure 7 This is a schematic diagram of the connection structure of the square rod and the slider of the utility model.

[0021] In the figure: 1, base; 2, mounting frame; 3, feed hopper; 4, screen; 5, mounting plate; 50, transmission shaft; 51, mounting hole; 52, mounting slot; 53, ball bearing; 54, rotating shaft; 6, bump; 7, arc plate; 8, motor; 9, square rod; 10, slider; 101, square hole; 11, connecting shaft; 12, motor transmission shaft; 13, first driving gear; 14, second driving gear; 15, first driven paper wheel; 16, second driven gear; 17, paddle; 18, push rod; 19, through hole; 20, slot; 21, mounting opening; 22, positioning rod; 23, through slot; 24, paddle. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-7The utility model provides a technical solution: a vibrating screen positioning and fixing device, including a base 1, a mounting frame 2, a feed hopper 3, a screen 4, a mounting plate 5 and a motor 8, a motor transmission shaft 12 is arranged at the left end of the motor 8, a transmission shaft 50 is arranged at the lower part of the mounting frame 2, a convex block 4 is arranged on the transmission shaft 50, the screen 4 is installed in the middle part of the mounting frame 2, a rotating shaft 54 ​​is arranged at both ends of the screen 4, a mounting hole 51 matching with the rotating shaft 54 ​​is arranged on the mounting plate 5, a mounting groove 52 is arranged in the mounting hole 51, a ball 53 is arranged in the mounting groove 52, and a bottom of the screen 4 is provided with a rotating shaft 54. The top of the motor 8 is provided with an arc plate 7, the right end of the transmission shaft 50 is provided with a square rod 9, the square rod 9 is provided with a slider 10, the right end of the square rod 9 is provided with a connecting shaft 11, the left end of the motor 8 is provided with a motor transmission shaft 12, the motor transmission shaft 12 is provided with a first driving gear 13 and a second driving gear 14, the slider 10 is provided with a first driven gear 15 and a second driven gear 16, the top of the first driven gear 15 is provided with a paddle 17, and the right end of the paddle 17 is provided with a push rod 18, to screen the building materials, the building materials enter through the feed port 3, fall on the screen 4, and start the electric The motor 8 drives the first driving gear 13 and the second driving gear 14 to rotate through the motor transmission shaft 12. The first driving gear 13 is meshed with the first driven gear 15. The first driving gear 13 drives the first driven gear 15 to rotate. The first driven gear 15 drives the square rod 10 to rotate through the slider 15. The square rod 10 drives the transmission shaft 50 to rotate. The transmission shaft 50 drives the protrusion 6 to rotate. The protrusion 6 is provided with three groups around the transmission shaft 50. During the rotation process, the protrusion 6 pushes the arc plate 7 to move upward, and the arc plate 7 drives the screen 4 to move upward. When the protrusion 6 is disengaged The arc plate 7 and the screen 4 move downward due to gravity, and the continuous rotation of the transmission shaft 50 causes one end of the screen 4 to move up and down continuously, vibrating the screen 4 to vibrate and screen the building sand and gravel. A rotating shaft 54 ​​is provided at one end of the screen 4, and three groups of balls 53 arranged in the mounting hole 51 cooperate with the rotating shaft 54. The three groups of balls 53 can not only ensure the rotation of the rotating shaft 54, but also reduce the friction between the rotating shaft 54 ​​and the inner wall of the mounting hole, so that the friction force received by the rotating shaft 54 ​​during the rotation process is minimized, thereby making the screen 4 smoother and more stable during the vibration screening process of materials.

[0024] Among them, the mounting frame 2 is provided with a through hole 19 that matches the push rod 18, a card slot 20 is provided at the top of the push rod 18, a mounting port 21 is provided at the top of the through hole 19, a positioning rod 22 is provided in the mounting port 21, a spring 25 is provided at the top of the positioning rod 22, a through slot 23 is provided on the right side of the mounting port 21, and a lever 24 is provided on the upper right side of the positioning rod 22. When the feeding speed of the sand and gravel material is fast, the lever 24 is pushed upward, and the lever 24 drives the positioning rod 22 to move upward, and the positioning rod 22 is disengaged from the card slot 20 provided on the left side of the top of the push rod 18, and the push rod 18 is pushed to the left, and the push rod 18 drives the first driven gear 15 to move to the left through the paddle 17, and the first driven gear 15 drives the second driven gear 16 to move to the left through the slider 10, and the slider 10 moves to the leftmost side of the square rod 9. At this time, the first driven gear 15 will be disengaged from the first driving gear 13, and the second driven gear 16 will mesh with the second driving gear 14. At this time, the lever 24 is released, and the spring 25 pushes the positioning rod 22 to move downward. The positioning rod 22 is stuck in the slot set on the right side of the top of the push rod 18 to fix the push rod 18, thereby positioning and fixing the slider 10. The diameter of the second driving gear 14 is larger than the second driven paper wheel 16, so the second driving gear 14 accelerates the rotation of the second driven gear 16, thereby accelerating the rotation speed of the transmission shaft 50, so that the pushing frequency of the protrusion 6 on the screen 4 is increased, and the vibration frequency of the screen 4 is accelerated. Even if the feeding speed of the building materials is accelerated, the building materials can be well screened;

[0025] A square hole 101 matching with the square rod 9 is provided in the middle of the slider 10. The slider 10 drives the square rod 6 to rotate, and the square rod 6 drives the transmission shaft 50 to rotate.

[0026] The first driving gear 13 cooperates with the first driven gear 15, and the second driving gear 14 cooperates with the second driven gear 16. The distance between the first driving gear 13 and the second driving gear 14 is greater than the distance between the first driven gear 15 and the second driven gear 16, ensuring that only one of the first driven gear 15 and the second driven gear 16 is meshed with the first driving gear 13 and the second driving gear 14;

[0027] The left end of the motor transmission shaft 12 passes through the mounting frame 2, and the motor transmission shaft 12 is movably connected to the mounting frame 2, and a motor bracket is provided at the bottom of the motor 8;

[0028] The clamping slots 20 are provided in two groups, one on the left and the other on the right. After the push rod 18 is moved to the left or the right, the positioning rod 22 can fix the push rod 18 by clamping the clamping slots 20 .

[0029] Working principle: to screen the building materials, the building materials enter through the feed port 3 and fall on the screen 4, the motor 8 is started, the motor 8 drives the first driving gear 13 and the second driving gear 14 to rotate through the motor transmission shaft 12, the first driving gear 13 is meshed with the first driven gear 15, the first driving gear 13 drives the first driven gear 15 to rotate, the first driven gear 15 drives the square rod 10 to rotate through the slider 15, the square rod 10 drives the transmission shaft 50 to rotate, the transmission shaft 50 drives the protrusion 6 to rotate, the protrusion 6 is arranged in three groups around the transmission shaft 50, during the rotation of the protrusion 6, the arc plate 7 is pushed to move upward, the arc The curved plate 7 drives the screen 4 to move upward. When the protrusion 6 is separated from the curved plate 7, the curved plate 7 and the screen 4 move downward due to gravity. The continuous rotation of the transmission shaft 50 causes one end of the screen 4 to move up and down continuously, vibrating the screen 4 to vibrate and screen the building sand and gravel. A rotating shaft 54 ​​is provided at one end of the screen 4. Three groups of balls 53 arranged in the mounting hole 51 cooperate with the rotating shaft 54. The three groups of balls 53 can not only ensure the rotation of the rotating shaft 54, but also reduce the friction between the rotating shaft 54 ​​and the inner wall of the mounting hole, so that the friction force received by the rotating shaft 54 ​​during the rotation process is minimized, thereby making the screen 4 smoother and more stable during the vibration screening process of materials.

[0030] 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 vibrating screen positioning and fixing device, comprising a base (1), a mounting frame (2), a feed hopper (3), a screen (4), a mounting plate (5) and a motor (8), characterized in that: A motor transmission shaft (12) is arranged at the left end of the motor (8), a transmission shaft (50) is arranged at the lower part of the mounting frame (2), a protrusion (6) is arranged on the transmission shaft (50), the screen (4) is mounted in the middle part of the mounting frame (2), both ends of the screen (4) are provided with a rotating shaft (54), a mounting hole (51) matching with the rotating shaft (54) is arranged on the mounting plate (5), a mounting groove (52) is arranged in the mounting hole (51), a ball (53) is arranged in the mounting groove (52), and a bottom of the screen (4) is provided with a An arc plate (7) is arranged, a square rod (9) is arranged at the right end of the transmission shaft (50), a slider (10) is arranged on the square rod (9), a connecting shaft (11) is arranged at the right end of the square rod (9), a first driving gear (13) and a second driving gear (14) are arranged on the motor transmission shaft (12), a first driven gear (15) and a second driven gear (16) are arranged on the slider (10), a paddle (17) is arranged on the top of the first driven gear (15), and a push rod (18) is arranged at the right end of the paddle (17).

2. A vibrating screen positioning and fixing device according to claim 1, characterized in that: The mounting frame (2) is provided with a through hole (19) matched with the push rod (18), the top of the push rod (18) is provided with a slot (20), the top of the through hole (19) is provided with a mounting opening (21), a positioning rod (22) is provided in the mounting opening (21), a spring (25) is provided at the top of the positioning rod (22), a through slot (23) is provided on the right side of the mounting opening (21), and a lever (24) is provided on the upper right side of the positioning rod (22).

3. A vibrating screen positioning and fixing device according to claim 1, characterized in that: The middle part of the sliding block (10) is provided with a square hole (101) which matches with the square rod (9).

4. A vibrating screen positioning and fixing device according to claim 1, characterized in that: The first driving gear (13) cooperates with the first driven gear (15), and the second driving gear (14) cooperates with the second driven gear (16), and the distance between the first driving gear (13) and the second driving gear (14) is greater than the distance between the first driven gear (15) and the second driven gear (16).

5. A vibrating screen positioning and fixing device according to claim 1, characterized in that: The left end of the motor transmission shaft (12) passes through the mounting frame (2), and the motor transmission shaft (12) and the mounting frame (2) are movably connected, and a motor bracket is provided at the bottom of the motor (8).

6. A vibrating screen positioning and fixing device according to claim 2, characterized in that: The card slots (20) are provided in two groups, left and right.

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