A clog-resistant sand and gravel vibrating screen

Abstract

This utility model relates to the field of vibrating screen technology, and in particular to an anti-clogging sand and gravel vibrating screen, including a support frame and a screening machine. The screening machine is fixedly connected to the upper end of the support frame, and a support unit is fixedly installed at the bottom end of the screening machine. A monitoring unit and an information unit are installed on one side of the screening machine by bolts. The support unit includes a base block, and a slot is opened on the inner side of the base block. An inner limit block is fixedly connected to the inner side of the slot. A buffer spring is fixedly connected to the upper end of the inner limit block, and an indicator rod is fixedly connected to the upper end of the inner limit block. A mounting seat is fixedly connected to the upper end of the buffer spring. In this utility model, the tilt angle of the screening machine is accurately monitored, which facilitates timely adjustment of the equipment status. When the screening machine tilts to one side, the screen machine can be corrected by removing the support plate on the higher side, so that the screening machine can be restored to a more horizontal state, avoiding damage to the screen due to excessive local stress.

Description

Technical Field

[0001] This utility model relates to the field of vibrating screen technology, specifically to an anti-clogging sand and gravel vibrating screen. Background Technology

[0002] A sand and gravel vibrating screen is a device used for sand and gravel grading and screening. It generates vibration through a vibrating motor, causing the material to jump and move forward on the screen surface, thereby achieving the separation of materials of different particle sizes. It is commonly used in industries such as construction and mining, and can effectively remove impurities and improve the quality of sand and gravel. It has a simple structure, is easy to operate, has high screening efficiency, and can meet a variety of production needs.

[0003] The screen mesh of a sand and gravel vibrating screen is one of its core components. It is usually woven from high-strength metal wire, such as stainless steel wire or carbon steel wire, which has good wear resistance and elasticity. When the vibrating screen is working, the screen mesh vibrates at high speed under the drive of the vibrating motor, causing the sand and gravel to move quickly on the screen surface. Fine particles fall through the screen holes, while larger particles remain on the screen surface and are discharged. The quality and service life of the screen mesh directly affect the screening efficiency and screening accuracy of the vibrating screen. If the screen mesh is subjected to large pressure for a long time, it will deform and break. A broken screen mesh will cause the screen holes to be blocked, reducing the screening efficiency.

[0004] When a sand and gravel vibrating screen operates on sandy soil, the high-frequency vibration of the machine body can easily cause uneven settlement of the foundation ground, which in turn causes the screen body to tilt. Once the screen body tilts, the aggregate will accumulate on the lower side under the action of gravity, causing the screen mesh in that area to bear a load far exceeding the design standard in a short period of time, accelerating the wear, deformation, or even breakage of the screen mesh. The deformed or broken screen mesh cannot effectively separate the material accurately according to particle size, and will also cause the screen holes to become clogged. Therefore, a clog-resistant sand and gravel vibrating screen is proposed to address the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an anti-clogging sand and gravel vibrating screen to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A clog-resistant vibrating screen for sand and gravel includes a support frame and a screening machine. The screening machine is fixedly connected to the upper end of the support frame, and a support unit is fixedly installed at the bottom end of the screening machine. A monitoring unit and an information unit are bolted to one side of the screening machine. The support unit includes a base block with a slot on its inner side. An inner limit block is fixedly connected to the inner side of the slot. A buffer spring and an indicator rod are fixedly connected to the upper end of the inner limit block. A mounting base is fixedly connected to the upper end of the buffer spring. An insertion hole is provided on the inner side of the mounting base. A frame is fixedly connected to the bottom end of the mounting base, and a support plate is engaged with the outer side of the frame.

[0008] As a further optimization of this utility model, the following features are provided: four support units are provided, distributed at the four corners of the bottom of the support frame; the depth of the slot is four-fifths of the height of the base block; a portion of the inner limiting block protrudes from the upper end of the slot; two buffer springs are provided, symmetrically distributed; the indicator rod is installed through the mounting base; a gap is provided between the outer side of the indicator rod and the inner wall of the mounting base; and several grooves are provided on the outer side of the indicator rod.

[0009] As a further optimization of this utility model, the following features are provided: multiple support plates are provided, and the multiple support plates are grouped in pairs and stacked together in sequence; the support plates are closely attached to the outer side of the card frame; and the projection of the mounting base in the vertical direction coincides with the projection of the base block in the vertical direction.

[0010] As a further optimization of this utility model, the monitoring unit includes a left mounting platform, a liquid storage pipe is fixedly connected to the upper end of the left mounting platform, a floating plate is provided inside the liquid storage pipe, a magnetic disk is glued and fixed to the upper end of the floating plate, a fixed rotating shaft is welded and fixed inside the liquid storage pipe, a spotlight is rotatably connected to the outside of the fixed rotating shaft, and a mounting block is fixedly connected to the bottom end of the spotlight.

[0011] As a further optimization of this utility model, the information unit includes a right mounting platform, a vertical pole fixedly connected to the upper end of the right mounting platform, a sliding groove opened on the inner side of the vertical pole, a light-receiving point glued and fixed on one side of the vertical pole, a spring sheet welded and fixed on one side of the vertical pole, a counterweight block sleeved on the outer side of the vertical pole, a sliding rod fixedly connected to the upper end of the counterweight block, and a protruding post welded to the side of the sliding rod near the spring sheet.

[0012] As a further optimization of this utility model, the following features are provided: the left and right mounting platforms have the same structure and are symmetrically distributed on both sides of the screening machine; the angle between the extension line of the central axis of the spotlight and the upright is 90°; the vertical projection of the liquid storage tube is annular; the inner diameter of the liquid storage tube is four-fifths of the outer diameter of the float; the thickness of the float is one-fifth of its diameter; the outer edge of the float is arc-shaped; the diameter of the magnetic disk is three-fifths of the diameter of the float; the magnetic disk and the magnetic block repel each other magnetically; the vertical projection of the mounting block is elliptical; and the horizontal projection of the magnetic block is "I"-shaped.

[0013] As a further optimization of this utility model, the light-receiving points are provided in multiple ways, and the distance between each pair of adjacent light-receiving points is different. The end of the protrusion near the spring is arc-shaped, and part of the slide rod is engaged in the slide groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention enables precise monitoring of the tilt angle of the screening machine, facilitating timely adjustment of the equipment status. When the screening machine tilts to one side, the machine can be corrected by removing the support plate on the higher side, restoring it to a more level state and preventing damage to the screen due to excessive local stress. At the same time, it cleverly solves the problem of dust interference, ensuring that the light signal is clearly identifiable, allowing operators to better monitor the equipment status in real time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the support unit structure of this utility model;

[0018] Figure 3 This is an exploded view of the support unit of this utility model;

[0019] Figure 4 This is a schematic diagram of the monitoring unit structure of this utility model;

[0020] Figure 5 This is a cross-sectional structural diagram of the monitoring unit of this utility model;

[0021] Figure 6 This is a schematic diagram of the magnetic block installation position structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the information unit structure of this utility model.

[0023] In the diagram: 1. Support frame; 2. Screening machine;

[0024] 3. Support unit; 31. Base block; 32. Slot; 33. Inner limit block; 34. Buffer spring; 35. Indicator rod; 36. Mounting base; 37. Insertion hole; 38. Frame; 39. Support plate;

[0025] 4. Monitoring unit; 41. Left mounting platform; 42. Liquid storage tube; 43. Float; 44. Magnetic disk; 45. Fixed rotating shaft; 46. Spotlight; 47. Mounting block; 48. Magnetic block;

[0026] 5. Information unit; 51. Right mounting platform; 52. Upright pole; 53. Slide groove; 54. Light receiving point; 55. Spring; 56. Counterweight; 57. Slide rod; 58. Protruding column. Detailed Implementation

[0027] 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.

[0028] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0029] Please see Figures 1-7 This utility model provides a technical solution:

[0030] A clog-resistant sand and gravel vibrating screen includes a support frame 1 and a screening machine 2. The screening machine 2 is fixedly connected to the upper end of the support frame 1, and a support unit 3 is fixedly installed at the bottom end of the screening machine 2. A monitoring unit 4 and an information unit 5 are installed on one side of the screening machine 2 by bolts. The support unit 3 includes a base block 31. A slot 32 is opened on the inner side of the base block 31. An inner limit block 33 is fixedly connected to the inner side of the slot 32. A buffer spring 34 is fixedly connected to the upper end of the inner limit block 33. An indicator rod 35 is fixedly connected to the upper end of the inner limit block 33. A mounting base 36 is fixedly connected to the upper end of the buffer spring 34. An insertion hole 37 is opened on the inner side of the mounting base 36. A frame 38 is fixedly connected to the bottom end of the mounting base 36. A support plate 39 is snapped onto the outer side of the frame 38.

[0031] As a further implementation of this solution, four support units 3 are provided, distributed in the four corner areas at the bottom of the support frame 1. The depth of the slot 32 is four-fifths of the height of the base block 31. A portion of the inner limiting block 33 protrudes from the upper end of the slot 32. Two buffer springs 34 are provided, symmetrically distributed. The indicator rod 35 is installed through the mounting base 36. A gap is provided between the outer side of the indicator rod 35 and the inner wall of the mounting base 36. Several grooves are provided on the outer side of the indicator rod 35. The distribution of the support units 3 can make the support of the entire device more balanced. The depth of the slot 32 is four-fifths of the height of the base block 31, which can make the other components better fit into the base block 31, thereby achieving a stable connection. The gap between the outer side of the indicator rod 35 and the inner wall of the mounting base 36 can prevent the indicator rod 35 from colliding with the mounting base 36 when it slides.

[0032] As a further implementation of this solution, multiple support plates 39 are provided, and the multiple support plates 39 are grouped in pairs and stacked together in sequence. The outer side of the frame 38 is closely attached to the support plates 39. The projection of the mounting base 36 in the vertical direction coincides with the projection of the base block 31 in the vertical direction. The close contact between the frame 38 and the support plates 39 can play a role in limiting and fixing. It can prevent the support plates 39 from moving or shaking in the horizontal direction, ensuring that the support plates 39 always maintain a stable position during operation, and further enhancing the structural stability of the support unit 3.

[0033] As a further implementation of this scheme, the monitoring unit 4 includes a left mounting platform 41, with a liquid storage pipe 42 fixedly connected to the upper end of the left mounting platform 41. A float 43 is provided inside the liquid storage pipe 42, and a magnetic disk 44 is glued and fixed to the upper end of the float 43. A fixed rotating shaft 45 is welded and fixed inside the liquid storage pipe 42, and a spotlight 46 is rotatably connected to the outside of the fixed rotating shaft 45. A mounting block 47 is fixedly connected to the bottom end of the spotlight 46. The fixed rotating shaft 45 provides stable support for the spotlight 46, ensuring that the spotlight 46 will not shake or loosen during rotation, and ensuring the accuracy of the rotation angle and position of the spotlight 46.

[0034] As a further implementation of this solution, the information unit 5 includes a right mounting platform 51, with a pole 52 fixedly connected to the upper end of the right mounting platform 51. A groove 53 is provided on the inner side of the pole 52. A light-receiving point 54 is glued and fixed to one side of the pole 52. A spring 55 is welded and fixed to one side of the pole 52. A counterweight 56 ​​is sleeved on the outer side of the pole 52. A sliding rod 57 is fixedly connected to the upper end of the counterweight 56. A protruding post 58 is welded to the side of the sliding rod 57 near the spring 55. The light-receiving point 54 can receive light signals emitted from the spotlight 46, making it easy to be observed. The groove 53 is used to guide the movement of the sliding rod 57. The fixing of the counterweight 56 ​​and the sliding rod 57 can prevent the sliding rod 57 from moving too far.

[0035] As a further implementation of this scheme, the left mounting platform 41 and the right mounting platform 51 have the same structure. The left mounting platform 41 and the right mounting platform 51 are symmetrically distributed on both sides of the screen machine 2. The angle between the extension line of the central axis of the spotlight 46 and the upright 52 is 90°. The vertical projection of the liquid storage pipe 42 is annular. The inner diameter of the liquid storage pipe 42 is four-fifths of the outer diameter of the float 43. The thickness of the float 43 is one-fifth of its diameter. The outer edge of the float 43 is arc-shaped. The diameter of the magnetic disk 44 is three-fifths of the diameter of the float 43. The magnetic disk 44 and the magnetic block 48 are magnetically repelled. The vertical projection of the mounting block 47 is elliptical. The horizontal projection of the magnetic block 48 is "I". The float 43 and the liquid storage pipe 4 The dimensional relationship of 2 ensures that the floating plate 43 can float freely in the liquid storage tube 42 while maintaining a certain gap to prevent the floating plate 43 from getting stuck after friction with the inner wall of the liquid storage tube 42. The arc edge can reduce the contact area between the floating plate 43 and the inner wall of the liquid storage tube 42, thereby reducing friction and allowing the floating plate 43 to float more smoothly. The magnetic disk 44 can be stably attached to the floating plate 43 without exceeding the edge of the floating plate 43, avoiding interference with the inner wall of the liquid storage tube 42. The magnetic repulsion design between the magnetic disk 44 and the magnetic block 48 can realize non-contact power transmission. The shape of the magnetic block 48 can prevent it from falling off the mounting block 47 or wobbling up and down, thereby driving the mounting block 47 to move more stably.

[0036] As a further implementation of this solution, multiple light-receiving points 54 are provided, and the distance between each pair of adjacent light-receiving points 54 is different. The end of the protrusion 58 near the spring 55 is arc-shaped, and part of the slide rod 57 is engaged in the slide groove 53. The different distances between different light-receiving points 54 can realize non-linear monitoring, thereby better adapting to the tilt changes of the screen machine 2. The arc-shaped design can reduce the impact when the protrusion 58 contacts the spring 55, and extend the service life of the spring 55 and the protrusion 58.

[0037] Working process: When the device is used for extended periods on sandy soil, the continuous vibration load causes the loose sand to rearrange and compact, resulting in the screen 2 tilting. When the screen 2 tilts, the left mounting platform 41, bolted to one side of the screen 2, will also tilt, causing the liquid storage pipe 42 at the upper end of the left mounting platform 41 to tilt. The liquid storage pipe 42 stores a certain amount of liquid, which, even when tilted, still provides sufficient buoyancy to the floating plate 43, ensuring that the floating plate 43 always provides a vertically upward buoyancy to the magnetic disk 44. The magnetic disk 44... Two magnetic blocks 48 set in the mounting block 47 provide magnetic repulsion. Since both the mounting block 47 and the spotlight 46 are made of lightweight materials, the repulsion force on the magnetic blocks 48 ensures that the bottom surface of the mounting block 47 remains parallel to the horizontal plane. At this time, the light emitted by the spotlight 46 will illuminate the light receiving point 54 set on one side of the upright 52. The tilt angle of the device can be determined by the light falling on different light receiving points 54. The counterweight 56 ​​set on the right mounting platform 51 can slide back and forth on the upright 52 when the right mounting platform 51 vibrates with the screen machine 2, thereby bringing The protrusion 58 on the movable fixed connecting slide rod 57 collides with the spring 55 fixed on one side of the upright rod 52, causing the spring 55 to vibrate irregularly and shake off the dust on the upright rod 52 and the light receiving point 54, making it easier to observe which light receiving point 54 the light falls on. Using the light spot indicator on the light receiving point 54, the support plate 39 on the high side of the screening machine 2 is removed sequentially from top to bottom. The buffer spring 34 prevents the mounting base 36 from quickly pressing down and crushing the remaining support plate 39 when it is removed. Only the... The corresponding number of support plates 39 can be removed from between the base block 31 and the mounting base 36 to correct the deviation of the screening machine 2. The groove on the outside of the indicator rod 35 inserted in the insertion hole 37 can determine the angle of deviation of the screening machine 2. In this way, when the screening machine 2 deviates too much, the entire device can be repositioned without further removal of the support plates 39. The frame 38 is locked on the outside of the inner limit block 33 and slides in the slot 32, which can ensure the temperature stability of the mounting base 36 fixedly connected to the upper end of the frame 38, thereby providing better support for the support frame 1.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clog-free sand and gravel shaker comprising a support frame (1) and a shaker machine (2), characterized in that: The upper end of the support frame (1) is fixedly connected to the screening machine (2), the bottom end of the screening machine (2) is fixedly installed with the support unit (3), the side of the screening machine (2) is installed with the monitoring unit (4) by bolts, and the side of the screening machine (2) is installed with the information unit (5) by bolts. The support unit (3) includes a base block (31), a slot (32) is provided on the inner side of the base block (31), an inner limit block (33) is fixedly connected to the inner side of the slot (32), a buffer spring (34) is fixedly connected to the upper end of the inner limit block (33), an indicator rod (35) is fixedly connected to the upper end of the inner limit block (33), a mounting base (36) is fixedly connected to the upper end of the buffer spring (34), an insertion hole (37) is provided on the inner side of the mounting base (36), a frame (38) is fixedly connected to the bottom end of the mounting base (36), and a support plate (39) is snapped onto the outer side of the frame (38).

2. The anti-clogging sand and gravel vibrating screen according to claim 1, characterized in that: The support unit (3) is provided in four parts, and the four support units (3) are distributed in the four corner areas at the bottom of the support frame (1). The depth of the slot (32) is four-fifths of the height of the base block (31). A part of the inner limiting block (33) protrudes from the upper end of the slot (32). There are two buffer springs (34), and the two buffer springs (34) are symmetrically distributed. The indicator rod (35) is installed through the mounting base (36). There is a gap between the outer side of the indicator rod (35) and the inner wall of the mounting base (36). Several grooves are provided on the outer side of the indicator rod (35).

3. The anti-clogging sand and gravel vibrating screen according to claim 1, characterized in that: Multiple support plates (39) are provided, and the multiple support plates (39) are grouped in pairs and stacked together in sequence. The support plates (39) are closely attached to the outside of the card frame (38). The projection of the mounting base (36) in the vertical direction coincides with the projection of the base block (31) in the vertical direction.

4. The anti-clogging sand and gravel vibrating screen according to claim 1, characterized in that: The monitoring unit (4) includes a left mounting platform (41), a liquid storage pipe (42) is fixedly connected to the upper end of the left mounting platform (41), a float (43) is provided inside the liquid storage pipe (42), a magnetic disk (44) is glued and fixed to the upper end of the float (43), a fixed rotating shaft (45) is welded and fixed to the inner side of the liquid storage pipe (42), a spotlight (46) is rotatably connected to the outer side of the fixed rotating shaft (45), and a mounting block (47) is fixedly connected to the bottom end of the spotlight (46).

5. The anti-clogging sand and gravel vibrating screen according to claim 1, characterized in that: The information unit (5) includes a right mounting platform (51), with a pole (52) fixedly connected to the upper end of the right mounting platform (51). A sliding groove (53) is provided on the inner side of the pole (52). A light-receiving point (54) is glued and fixed on one side of the pole (52). A spring sheet (55) is welded and fixed on one side of the pole (52). A counterweight (56) is sleeved on the outer side of the pole (52). A sliding rod (57) is fixedly connected to the upper end of the counterweight (56). A protruding post (58) is welded to the side of the sliding rod (57) near the spring sheet (55).

6. The anti-clogging sand and gravel vibrating screen according to claim 4, characterized in that: The left mounting platform (41) and the right mounting platform (51) have the same structure. The left mounting platform (41) and the right mounting platform (51) are symmetrically distributed on both sides of the screen machine (2). The angle between the extension line of the central axis of the spotlight (46) and the upright (52) is 90°. The projection of the liquid storage pipe (42) in the vertical direction is annular. The inner diameter of the liquid storage pipe (42) is four-fifths of the outer diameter of the float (43). The thickness of the float (43) is one-fifth of its diameter. The outer edge of the float (43) is arc-shaped. The diameter of the magnetic disk (44) is three-fifths of the diameter of the float (43). The magnetic disk (44) and the magnetic block (48) are magnetically repelled. The projection of the mounting block (47) in the vertical direction is elliptical. The horizontal projection of the magnetic block (48) is "I".

7. The anti-clogging sand and gravel vibrating screen according to claim 5, characterized in that: The light-receiving points (54) are provided in multiple ways, and the distance between each pair of adjacent light-receiving points (54) is different. The end of the protruding post (58) near the spring (55) is arc-shaped, and part of the slide rod (57) is engaged in the slide groove (53).

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