CN114433474B - Mining vibrating screen - Google Patents

Abstract

The invention provides a vibrating screen for mining, which includes a frame, a support frame, a sieve plate, a spring I, a vibration mechanism, a hopper, a bottom plate, a feeding plate and a cylinder, and the support frame is fitted in the guide rail on the frame and installed on the guide rail. A moving pair is formed inside, the sieve plate is installed on the support frame through the spring I, and the vibration mechanism includes a motor, a crank rod, a connecting rod, a push rod and a top plate. The vibrating mechanism drives the sieve plate to reciprocate in translation, and during the translation process of the sieve plate, the ejector rod reciprocates in contact with the raised part of the top plate, and then the sieve plate is reciprocally lifted up. At this time, the sieve plate vibrates, and the sieve plate reciprocates In the process of translation, the feeding plate will be displaced synchronously, then the material falling from the hopper will be laid on the feeding plate, and the feeding plate will vibrate with the sieve plate, and then the materials on the feeding plate will be evenly distributed, then The action of the cylinder makes the feeding plate turn over, and the material will be sprinkled on the sieve plate, thereby avoiding the poor screening effect caused by the accumulation and falling of the material on the sieve plate.

Description

Mining vibrating screen

technical field

The invention relates to the technical field of mining machinery, in particular to a mining vibrating screen.

Background technique

Publication No. CN205341271U provides a high-efficiency double-layer linear vibrating screen for grinding and grading, including a turning shaft, a shock-absorbing support base, an upper screen box, a lower screen box, a first screen and a second screen. A fixed support column and a hydraulic lifting column are vertically installed on the seismic support base. There are two fixed support columns and they are arranged in parallel. The other end of the box and the lower screen box are set on the hydraulic lifting column through the rotating joint, the first screen is installed at the bottom of the upper screen box, and the second screen is installed at the bottom of the lower screen box.

The above-mentioned prior art is also sieved by means of two layers of sieves, so as to achieve the effect of sufficient screening, but the materials are piled up when they enter one layer of sieves, so the materials screened on one layer of sieves cannot be screened. For uniform screening, some materials in contact with the screen will not be screened, and the second layer of screen only performs secondary screening on the materials that have been screened, which cannot increase the screening efficiency.

Contents of the invention

The object of the present invention is to provide a vibrating screen for mining to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

A vibrating screen for mining, including a frame, a support frame, a sieve plate, a spring I, a vibrating mechanism, a hopper, a bottom plate, a feeding plate and a cylinder, wherein:

The support frame is fitly installed in the guide rail on the frame and forms a moving pair in the guide rail. The sieve plate is installed on the support frame through the spring I. The vibration mechanism includes a motor, a crank rod, a connecting rod, a push rod and The top plate, the motor is arranged on the frame, and its power output end is fixedly sleeved with a crank rod. One end of the connecting rod is hinged with the crank rod, and the other end is hinged with the support frame. The ejector rod is arranged on the frame, and the top plate It is installed at the bottom of the sieve plate, where the end of the push rod is in contact with the flat part on the top plate, and the top plate is provided with a raised part, so that the sieve plate can be lifted when the push rod contacts the raised part, and the hopper is located on the screen Above the sieve plate, the bottom plate cooperates with the through hole on the side of the sieve plate through the support rod at the bottom. A spring II is arranged between the bottom plate and the sieve plate. The feed plate is hinged on the bottom plate, and the feed plate is located The two ends of the cylinder are respectively hinged with the bottom plate and the feeding plate, and the bottom of the hopper is equipped with a quantitative discharge assembly, wherein the quantitative discharge assembly is used to quantitatively discharge materials to the feed plate.

Preferably, the quantitative discharge assembly is composed of a discharge pipe, a baffle, a spline shaft and a connecting frame, the discharge pipe communicates with the hopper, the discharge pipe is located above the feed plate, and the baffle is installed with In the rectangular groove in the vertical direction of the discharge pipe, the displacement of the baffle along the vertical direction can block and open the discharge pipe. The spline shaft is arranged on the side of the baffle, and one end of the connecting frame It is connected with the bottom plate, and the other end is matched with the spline shaft.

Preferably, a slide block is fitted in the guide groove of the crank rod, and a threaded rod is installed in rotation inside the crank rod, wherein the threaded rod passes through the slide block and forms a threaded connection with the slide block.

Preferably, one end of the connecting rod is hinged to the slider.

Preferably, the sieve plate is inclined.

Compared with prior art, the beneficial effect of the present invention is:

In the present invention, the vibrating mechanism drives the sieve plate to reciprocate in translation, and during the translation process of the sieve plate, the ejector rod reciprocates in contact with the raised portion of the top plate, and then the sieve plate is reciprocally jacked up. At this time, the sieve plate vibrates, and the During the reciprocating translation of the plate, the feeding plate will be displaced synchronously, then the material falling from the hopper will be laid on the feeding plate, and the feeding plate will vibrate with the sieve plate, and then the material on the feeding plate will be evenly distributed , then there is a cylinder action to make the feeding plate turn over, and the material will be sprinkled on the sieve plate, thereby avoiding the poor screening effect caused by the accumulation and falling of the material on the sieve plate, and ensuring the screening effect and efficiency.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of the overall structure of the present invention;

Fig. 2 is the front view of overall structure of the present invention;

Fig. 3 is the side view of overall structure of the present invention;

Fig. 4 is a three-dimensional schematic diagram of the crank rod in the present invention.

In the figure: 1 frame, 2 supporting frame, 3 sieve plate, 4 spring I, 5 vibration mechanism, 6 hopper, 7 bottom plate, 8 feeding plate, 9 cylinder, 51 motor, 52 crank rod, 53 connecting rod, 54 top Rod, 55 top plate, 61 discharge pipe, 62 baffle plate, 63 spline shaft, 64 connecting frame, 71 spring II, 521 slider, 522 threaded rod.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example:

Referring to Fig. 1 to Fig. 4, the present invention provides a technical solution:

A vibrating screen for mining, comprising a frame 1, a support frame 2, a sieve plate 3, a spring I4, a vibration mechanism 5, a hopper 6, a bottom plate 7, a feeding plate 8 and a cylinder 9, wherein:

The support frame 2 is fitted in the guide rail on the frame 1 and forms a moving pair in the guide rail. The sieve plate 3 is installed on the support frame 2 through the spring I4, and the sieve plate 3 is inclined. The vibration mechanism 5 includes a motor 51, a crank Rod 52, connecting rod 53, ejector rod 54 and top plate 55, motor 51 is arranged on the frame 1, the power output end of motor 51 is sheathed with crank rod 52, and slide block 521 is installed in the guide groove of crank rod 52, A threaded rod 522 is rotated inside the crank rod 52, wherein the threaded rod 522 passes through the slider 521 and forms a threaded connection with the slider 521, and then the position of the slider 521 can be adjusted by rotating the threaded rod 522, so the distance between the slider 521 The distance of the center of rotation of the motor 51 changes, one end of the connecting rod 53 is hinged with the slide block 521, and the other end is hinged with the support frame 2, and then the rotation of the crank rod 52 can drive the support frame 2 to move back and forth, and the ejector rod 54 is arranged on the frame 1 , the top plate 55 is arranged on the bottom of the sieve plate 3, wherein the end of the push rod 54 is in contact with the flat part on the top plate 55, and the top plate 55 is provided with a raised portion, so when the push rod 54 is in contact with the raised portion, it can be lifted The sieve plate 3 and the hopper 6 are located above the sieve plate 3. The bottom plate 7 cooperates with the through hole on the side of the sieve plate 3 through the support rod at the bottom, and then when the sieve plate 3 moves, it will drive the bottom plate 7 to move synchronously, and the bottom plate 7 can also Relative to the sieve plate 3, it moves up and down in the vertical direction, and a spring II 71 is provided between the bottom plate 7 and the sieve plate 3, and the feeding plate 8 is hinged on the bottom plate 7, wherein the feeding plate 8 is located above the sieve plate 3, and the cylinder 9 The two ends are respectively hinged with the base plate 7 and the feeding plate 8, and the bottom of the hopper 6 is provided with a quantitative discharge assembly, wherein the quantitative discharge assembly is used for quantitatively feeding the feed plate 8, and the quantitative discharge assembly is provided by the discharge pipe 61 , a baffle plate 62, a spline shaft 63 and a connecting frame 64, the discharge pipe 61 communicates with the hopper 6, the discharge pipe 61 is located above the feed plate 8, and the baffle plate 62 is installed in the vertical direction of the discharge pipe 61 In the rectangular groove, then the displacement of the baffle plate 62 along the vertical direction can realize blocking and opening the discharge pipe 61, the spline shaft 63 is arranged on the side of the baffle plate 62, and one end of the connecting frame 64 is connected with the base plate 7, The other end cooperates with the spline shaft 63, and then the connecting frame 64 can be displaced along the central axis of the spline shaft 63, and when the connecting frame 64 moves down, it will drive the spline shaft 63 to move down synchronously, and reciprocate on the bottom plate 7 During translation, the sliding of the connecting frame 64 relative to the central axis of the spline shaft 63 can avoid motion interference.

The working principle of the present invention is as follows: dump the material to be screened into the hopper 6, at this time the material will fall along the discharge pipe 61 and fall on the feeding plate 8, and the motor 51 drives the The crank rod 52 rotates. At this time, the connecting rod 53 drives the support frame 2 to reciprocate and translate, then the sieve plate 3 follows the support frame 2 to reciprocate and translate, and the top plate 55 moves synchronously with the sieve plate 3. At this time, the raised part on the top plate 55 is flat. The faces are in contact with the ejector rods 54 alternately, and when the ejector rods 54 contact with the raised parts, they will push the sieve plate 3 upwards, so the reciprocating contact of the ejector rods 54 with the raised parts will realize the vibration of the sieve plate 3, and then enter The material plate 8 moves and vibrates synchronously with the sieve plate 3. At this time, the material falling from the discharge pipe 61 will be flat on the input plate 8. When the gravity of the material on the input plate 8 is greater than the support force of the spring II71 It will squeeze the spring II 71, and at this time the bottom plate 7 will move down, and in the process of the bottom plate 7 moving down, it will drive the connecting frame 64 to move down. At this time, the spline shaft 63 will drive the baffle plate 62 to move down, and then the baffle plate will move down. 62 to block the inside of the discharge pipe 61, so that the discharge pipe 61 cannot be unloaded to achieve the effect of quantitative unloading, and then the cylinder 9 pushes the feed plate 8 to turn over, so the materials evenly distributed on the feed plate 8 are It will fall on the sieve plate 3 in the form of oblique throwing motion. At this time, the material is evenly distributed on the sieve plate 3 for screening, so as to avoid the poor screening effect caused by material accumulation;

When facing materials of different sizes, the amplitude of reciprocating translation of the feeding plate 8 is different. For example, when facing materials of smaller sizes, the reciprocating translation range of the feeding plate 8 needs to be larger to achieve uniform distribution of materials. For larger materials, the translation range of the feeding plate 8 is small, so the uneven distribution of materials can be effectively avoided, and the adjustment method of the motion range of the feeding plate 8 is to rotate the threaded rod 522 to make the slider 521 relative to the motor. 51 The change of the distance of the center of rotation is equivalent to changing the eccentricity of the crank, thereby realizing the adjustment of the range of motion of the feeding plate 8 .

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (4)

1. The utility model provides a mining shale shaker, includes frame (1), support frame (2), sieve (3), spring I (4), vibration mechanism (5), hopper (6), bottom plate (7), pan feeding board (8) and cylinder (9), its characterized in that:

the screen plate feeding device is characterized in that the support frame (2) is installed in a guide rail on the rack (1) in a matched mode, a moving pair is formed in the guide rail, the screen plate (3) is installed on the support frame (2) through a spring I (4), the vibration mechanism (5) comprises a motor (51), a crank rod (52), a connecting rod (53), an ejector rod (54) and a top plate (55), the motor (51) is arranged on the rack (1), the crank rod (52) is fixedly sleeved on a power output end of the motor, one end of the connecting rod (53) is hinged to the crank rod (52), the other end of the connecting rod is hinged to the support frame (2), the ejector rod (54) is arranged on the rack (1), the top plate (55) is arranged at the bottom of the screen plate (3), the end portion of the ejector rod (54) is in contact with a plane portion on the top plate (55), a protruding portion is arranged on the top plate (55), the screen plate (3) can be jacked when the ejector rod (54) is in contact with the protruding portion, the hopper (6) is arranged above the screen plate (3), the bottom plate (7) is in a support rod on the side face of the screen plate (3), a through hole of the bottom plate (7) is arranged in a through hole in a through which a through hole (7) in the screen plate (7) and a through hole (7) in a spring plate (7) and a through hole (8) arranged above the screen plate (7) and a through hole (7) hinged on the screen plate (8) and a spring plate (7) and a feed plate (8) arranged above the screen plate (3), two ends of the air cylinder (9) are respectively hinged with the bottom plate (7) and the feeding plate (8), and the bottom of the hopper (6) is provided with a quantitative discharging assembly which is used for quantitatively discharging materials to the feeding plate (8);

quantitative ejection of compact subassembly comprises discharging pipe (61), baffle (62), integral key shaft (63) and link (64), discharging pipe (61) and hopper (6) intercommunication, discharging pipe (61) are located the top of pan feeding board (8), baffle (62) cooperation is installed in the rectangular channel of discharging pipe (61) vertical side, so baffle (62) can realize the shutoff and open discharging pipe (61) along the displacement of vertical direction, integral key shaft (63) set up the side at baffle (62), and the one end and bottom plate (7) of link (64) are connected, the other end and integral key shaft (63) cooperation.

2. The mining vibrating screen of claim 1, wherein: the guide groove of the crank rod (52) is internally provided with a sliding block (521) in a matching way, the crank rod (52) is internally and rotatably provided with a threaded rod (522), and the threaded rod (522) penetrates through the sliding block (521) and is in threaded connection with the sliding block (521).

3. The mining vibrating screen of claim 2, wherein: one end of the connecting rod (53) is hinged with the sliding block (521).

4. The mining vibrating screen of claim 1, wherein: the sieve plate (3) is arranged obliquely.

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