阅读说明：本技术 一种往复筛 (Reciprocating sieve ) 是由 温军 于 2019-11-12 设计创作，主要内容包括：本发明涉及农业设备技术领域,具体涉及一种往复筛。一种往复筛,包括：架体；筛体,通过若干吊杆悬挂于架体上；摆动机构,设置在架体一侧,适于驱动筛体进行往复运动；还包括：离合机构,设置在摆动机构和筛体之间,适于使摆动机构与筛体进行可控的分离与连接。本发明提供了一种调整摆幅后筛体不会发生偏置,工作过程稳定的往复筛。(The invention relates to the technical field of agricultural equipment, in particular to a reciprocating sieve. A reciprocating screen comprising: a frame body; the screen body is suspended on the frame body through a plurality of suspension rods; the swinging mechanism is arranged on one side of the frame body and is suitable for driving the screen body to reciprocate; further comprising: and the clutch mechanism is arranged between the swinging mechanism and the screen body and is suitable for controllably separating and connecting the swinging mechanism and the screen body. The invention provides a reciprocating sieve which can not generate offset after the amplitude of oscillation is adjusted and has stable working process.)

1. A reciprocating screen comprising:

a frame body (2);

the screen body (3) is suspended on the frame body (2) through a plurality of suspension rods (1);

the swinging mechanism is arranged on one side of the frame body (2) and is suitable for driving the screen body (3) to reciprocate;

it is characterized by also comprising:

and the clutch mechanism is arranged between the swinging mechanism and the screen body (3) and is suitable for controllably separating and connecting the swinging mechanism and the screen body (3).

2. The reciprocating screen of claim 1, wherein the clutch mechanism comprises:

the first clutch plate (18) is fixedly arranged on the bottom surface of the screen body (3);

the reciprocating rod (19) is slidably mounted on the frame body (2), one end of the reciprocating rod is hinged with the swing mechanism, the other end of the reciprocating rod is provided with a second clutch plate (22), and the second clutch plate (22) is attached to the first clutch plate (18);

and the squeezing wheel set (23) at least comprises a pair of rollers which are respectively pressed on the back surfaces of the first clutch plate (18) and the second clutch plate (22) and are suitable for applying squeezing force to the first clutch plate (18) and the second clutch plate (22).

3. The reciprocating sieve of claim 1, wherein a chute is provided on the frame body (2), the reciprocating sieve further comprising:

a first sliding plate (26) and a second sliding plate (25), which are arranged in the sliding groove in a way of being vertical to the first clutch plate (18) and the second clutch plate (22), and the first sliding plate (26) and the second sliding plate (25) can slide mutually; a pair of wheel bodies in the extrusion wheel set (23) are respectively arranged on a first sliding plate (26) and a second sliding plate (25);

the shifting rod (27) is rotatably arranged on the frame body (2), two ends of the shifting rod (27) are respectively accommodated in the grooves of the first sliding plate (26) and the second sliding plate (25), and the shifting rod (27) is suitable for shifting the first sliding plate (26) and the second sliding plate (25) to slide in opposite directions when rotating.

4. The reciprocating screen of claim 3, further comprising:

the handle (21) is connected with one end of the shifting rod (27) through a traction wire (28), and the handle (21) is suitable for pulling the shifting rod (27) to rotate when being subjected to tension;

and the elastic resetting piece (24) is provided with two elastic resetting pieces, wherein one elastic resetting piece is arranged between the first sliding plate (26) and the frame body (2), and the other elastic resetting piece is arranged between the second sliding plate (25) and the frame body (2).

5. The reciprocating screen of claim 2, further comprising:

and the guide wheel set (20) at least comprises a pair of rollers which are arranged on two sides of the reciprocating rod (19) and are suitable for guiding the reciprocating rod (19) when the reciprocating rod (19) reciprocates.

6. The reciprocating screen of claim 2, wherein the oscillating mechanism comprises:

the rotating wheel (10) is arranged on one side of the frame body (2), is matched with the first power element (14) and is suitable for rotating under the driving of the first power element (14);

a diameter changing device;

one end of the swinging rod (4) is hinged with the reciprocating rod, and the other end of the swinging rod is hinged on the rotating wheel (10) through a diameter changing device;

the reducing device is provided with a hinged shaft (6) moving along the radial direction of the rotating wheel (10), and the swinging rod (4) is hinged on the hinged shaft (6).

7. The reciprocating screen of claim 6, wherein the diameter changing device comprises:

the sliding rail (8) is arranged on the rotating wheel (10) and extends along the radial direction of the rotating wheel (10);

the sliding block (7) is slidably mounted on the sliding rail (8), and the hinged shaft (6) is arranged on the sliding block (7);

the linear driving component is arranged on the sliding rail (8) in parallel with the sliding rail (8), the sliding block (7) is arranged in a matched mode with the linear driving component, and the sliding block (7) is suitable for sliding back and forth along the sliding rail (8) under the driving of the linear driving component.

8. The reciprocating sieve of claim 7, further comprising a cover plate (5) mounted on the slide rail (8), wherein the cover plate (5) is provided with a limit groove (16) extending along the slide rail (8);

the hinge shaft (6) is arranged in a limiting groove (16) in the cover plate (5) and can move along the limiting groove (16).

9. The reciprocating sieve of claim 8, wherein the sliding block (7) is provided with a groove body for accommodating the hinge shaft (6);

the hinge shaft (6) is provided with a flange part (17), the flange part (17) is arranged in the middle section of the hinge shaft (6), the cover plate (5) is pressed on the upper surface of the flange part (17), and the lower end of the hinge shaft (6) is accommodated in the sliding block (7).

10. The reciprocating screen of claim 7, wherein the linear drive member comprises:

the screw rod (11) is arranged on the slide rail (8) in parallel with the slide rail (8);

the second power element (12) is connected with the lead screw (11) and is suitable for driving the lead screw (11) to rotate;

the lead screw (11) penetrates through the sliding block (7) and is in threaded connection with the sliding block (7).

11. A reciprocating screen according to claim 10, wherein the second power element (12) and the lead screw (11) are arranged on either side of the centre of the runner (10).

12. The reciprocating screen of claim 10, wherein the second power element (12) is a dc motor, the reciprocating screen further comprising:

electric rail (9), for the annular, make by insulating material, electric rail (9) set firmly in second power component (12) periphery, be provided with two positive and negative ring-shaped electric wires on electric rail (9), be provided with support (15) of being made by insulating material on second power component (12), be provided with brush (13) on the support, brush (13) and ring-shaped electric wire sliding contact, brush (13) are connected with the positive negative pole of motor.

Technical Field

The invention relates to the technical field of material screening equipment, in particular to a reciprocating sieve.

Background

Along with the progress of society, the production becomes more and more refined, and the application range of reciprocating sieve is also wider and wider. The reciprocating sieve can remove impurities in the materials and can also divide the materials into different grades according to different sizes of particles. The reciprocating sieve is a screen mesh which utilizes the principle of vibration to lead materials to rock on the sieve surface and simultaneously move forwards in a straight line for reasonable matching, thereby achieving the purpose of sieving.

In the prior art, only one fixed swing amplitude is generally adopted, namely the swing amplitude of the reciprocating sieve cannot be adjusted, and particularly in the sieving process, the particles of the object to be sieved are continuously reduced, and the natural frequency of the object to be sieved is reduced. If the screening effect needs to be guaranteed, the swing amplitude required by the reciprocating screen also needs to be changed along with the reciprocating screen, when the screening is started, the grain particles are large, the whole weight is heavy, the reciprocating frequency is low, the reciprocating distance is long, in the screening process, along with the gradual reduction of the weight, the particles are gradually reduced, the required frequency is accelerated, and the reciprocating distance is shortened.

In order to solve the above problems, it is a common practice to replace the swing mechanism, but the operation of replacing the swing mechanism is very inconvenient, and after the swing mechanism is replaced, since the swing amplitude of the swing mechanism to be replaced later is changed, but the position where the rotating wheel of the swing mechanism is installed is not changed, the central position of the screen body is changed when the screen body reciprocates, and the change further causes the swing action of driving the screen body to be offset, which affects the stability of the whole device.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect that the swinging action of the screen body is biased after the swinging mechanisms with different swinging amplitudes are replaced in the screening process in the prior art, thereby providing the reciprocating screen.

In order to solve the technical problem, the invention provides a reciprocating sieve, which comprises:

a frame body;

the screen body is suspended on the frame body through a plurality of suspension rods;

the swinging mechanism is arranged on one side of the frame body and is suitable for driving the screen body to reciprocate;

further comprising:

and the clutch mechanism is arranged between the swinging mechanism and the screen body and is suitable for controllably separating and connecting the swinging mechanism and the screen body.

The clutch mechanism includes:

the first clutch plate is fixedly arranged on the bottom surface of the screen body;

the reciprocating rod is slidably arranged on the frame body, one end of the reciprocating rod is hinged with the swinging mechanism, the other end of the reciprocating rod is provided with a second clutch plate, and the second clutch plate is attached to the first clutch plate;

and the extrusion wheel set at least comprises a pair of rollers which are respectively pressed on the back surfaces of the first clutch plate and the second clutch plate and are suitable for applying extrusion force to the first clutch plate and the second clutch plate.

Be provided with the spout on the support body, reciprocating sieve still includes:

the first sliding plate and the second sliding plate are vertically arranged in the sliding groove relative to the first clutch plate and the second clutch plate and can slide mutually; a pair of wheel bodies in the extrusion wheel set are respectively arranged on the first sliding plate and the second sliding plate;

and the shifting rod is rotatably arranged on the frame body, two ends of the shifting rod are respectively accommodated in the grooves on the first sliding plate and the second sliding plate, and the shifting rod is suitable for shifting the first sliding plate and the second sliding plate to slide in opposite directions when rotating.

As a preferred technical solution, the method further comprises:

the handle is connected with one end of the deflector rod through a traction wire and is suitable for pulling the deflector rod to rotate when being subjected to tension;

and the elastic resetting pieces are provided with two elastic resetting pieces, wherein one elastic resetting piece is arranged between the first sliding plate and the frame body, and the other elastic resetting piece is arranged between the second sliding plate and the frame body.

As a preferred technical solution, the method further comprises:

and the guide wheel set at least comprises a pair of idler wheels, and the pair of idler wheels are arranged on two sides of the reciprocating rod and are suitable for guiding the reciprocating rod when the reciprocating rod reciprocates.

As a preferable aspect, the swing mechanism includes:

the rotating wheel is arranged on one side of the frame body, is matched with the first power element and is suitable for rotating under the driving of the first power element;

a diameter changing device;

one end of the swinging rod is hinged with the reciprocating rod, and the other end of the swinging rod is hinged on the rotating wheel through a diameter changing device;

the reducing device is provided with a hinged shaft moving along the radial direction of the rotating wheel, and the swinging rod is hinged on the hinged shaft.

As a preferred technical solution, the diameter changing device includes:

the sliding rail is arranged on the rotating wheel and extends along the radial direction of the rotating wheel;

the sliding block is slidably mounted on the sliding rail, and the hinged shaft is arranged on the sliding block;

the linear driving component is arranged on the sliding rail in parallel with the sliding rail, the sliding block is arranged in a matched mode with the linear driving component, and the sliding block is suitable for sliding back and forth along the sliding rail under the driving of the linear driving component.

As a preferred technical scheme, the device also comprises a cover plate which is arranged on the slide rail, and a limit groove which extends along the slide rail direction is arranged on the cover plate;

the hinge shaft is arranged in a limiting groove in the cover plate and can move along the limiting groove.

As a preferred technical scheme, a groove body for accommodating the hinge shaft is formed on the sliding block;

the hinge shaft is provided with a flange part which is arranged at the middle section of the hinge shaft, the cover plate is pressed on the upper surface of the flange part, and the lower end of the hinge shaft is accommodated in the sliding block.

As a preferable aspect, the linear driving member includes:

the lead screw is arranged on the slide rail in parallel with the slide rail;

the second power element is connected with the screw rod and is suitable for driving the screw rod to rotate;

the lead screw penetrates through the sliding block and is in threaded connection with the sliding block.

As a preferable technical scheme, the second power element and the lead screw are respectively arranged on two sides of the center of the rotating wheel.

As a preferred technical solution, the second power element is a dc motor, and the reciprocating sieve further includes:

the electric rail is annular and is made of insulating materials, the electric rail is fixedly arranged on the periphery of the second power element, positive and negative annular electric wires are arranged on the electric rail, a support made of the insulating materials is arranged on the second power element, an electric brush is arranged on the support and is in sliding contact with the annular electric wires, and the electric brush is connected with the positive electrode and the negative electrode of the motor.

The technical scheme of the invention has the following advantages:

1. the invention provides a reciprocating sieve, which comprises a frame body; the screen body is suspended on the frame body through a plurality of suspension rods; the swinging mechanism is arranged on one side of the frame body and is suitable for driving the screen body to reciprocate; further comprising: and the clutch mechanism is arranged between the swinging mechanism and the screen body and is suitable for controllably separating and connecting the swinging mechanism and the screen body.

The arrangement of the clutch mechanism can enable the swing mechanism to be more stable when the swing amplitude of the reciprocating sieve is changed, so that after the swing amplitude is changed, the influence received when the center position of the reciprocating motion of the reciprocating sieve is changed can be minimized through the arrangement of the clutch mechanism, and the whole equipment is more stable in the working process.

The clutch device can separate the swing mechanism from the screen body, the clutch mechanism can be controlled when the swing mechanism runs to the maximum distance or the minimum distance, and after the swing amplitude is changed, the clutch mechanism is controlled again when the swing mechanism runs to the maximum distance or the minimum distance again, so that the acting force of the swing mechanism can act on the screen body.

2. The reciprocating sieve provided by the invention has the advantages that the first clutch plate and the second clutch plate are arranged to realize the work of the clutch mechanism, the extrusion force is applied to the first clutch plate and the second clutch plate by the extrusion wheel set, the second clutch plate can drive the first clutch plate to move so as to drive the reciprocating sieve to reciprocate, when the swing amplitude needs to be changed, the first clutch plate is separated from the second clutch plate, the acting force generated by the swing mechanism cannot act on the reciprocating sieve, and after the swing amplitude is adjusted, the extrusion wheel set continues to apply the extrusion force to the first clutch plate and the second clutch plate, so that the reciprocating sieve continues to work.

3. According to the reciprocating sieve provided by the invention, the arrangement of the first sliding plate and the second sliding plate can change the positions of the rollers in the extrusion wheel set, when the rollers are driven by the first sliding plate and the second sliding plate to approach each other, the extrusion wheel set applies pressure on the first clutch plate and the second clutch plate, and when the rollers are driven by the first sliding plate and the second sliding plate to move away from each other, the acting force generated by the swing mechanism cannot act on the sieve body of the reciprocating sieve.

The setting of driving lever and handle can make operating personnel can accomplish clutching mechanism's operation in the support body outside, and operating personnel drives the driving lever through pulling handle and rotates, and the first slide of rotation control of driving lever takes place relative slip with the second slide, and then makes the change of relative position also take place for the gyro wheel in the extrusion wheelset.

The elastic reset piece is respectively arranged between the first sliding plate and the frame body and between the second sliding plate and the frame body, so that after clutch operation is completed, the first sliding plate and the second sliding plate can return to original positions, and extrusion force is continuously applied to the clutch plate.

4. The invention provides a reciprocating sieve, wherein a swing mechanism is arranged to realize reciprocating motion of the reciprocating sieve, a first power element is a motor, a rotating wheel is driven to work through belt transmission, an acting force capable of enabling a sieve body to realize reciprocating motion is provided through continuous rotation of the rotating wheel, a diameter-changing device can adjust the distance between a swing rod and the center of the rotating wheel on the rotating wheel, namely the maximum distance of the reciprocating sieve in reciprocating motion is adjusted, when the position where the swing rod is hinged with the rotating wheel is changed, the maximum distance of the reciprocating motion is changed along with the change of the swing amplitude of the reciprocating sieve, and the swing amplitude adjustment in the working process of the reciprocating sieve is realized.

5. According to the reciprocating sieve provided by the invention, the diameter-changing device can enable the oscillation amplitude to be more stable during adjustment, and the operability is stronger. The last slide rail that is provided with of reducing device, the slider is installed to the slide rail bottom, and the slider can be followed the bottom and removed, and parallel mount has the lead screw on the slide rail, and on the lead screw was located to the slider cover, the cell body was equipped with the articulated shaft above the slider, had the apron at slide rail top rigid coupling, avoided the cell body of articulated shaft roll-off slider, and the apron is equipped with the spacing groove, and the articulated shaft stretches out the spacing groove and removes along the spacing groove, and the swinging arms articulates on the articulated shaft to press at.

When the swing amplitude adjustment is needed, the linear driving component starts to work, a second power element in the linear driving component provides power to enable the screw rod to start to work, the position of the sliding block on the screw rod is changed in the rotation process of the screw rod, the sliding block slides on the bottom of the sliding rail through threads on the screw rod, the sliding block drives the hinged shaft and the oscillating rod to move along the limiting groove simultaneously when moving, so that the adjustment of the hinged position of the oscillating rod on the rotating wheel is achieved, when the sliding block moves to the designated position, the screw rod stops working, and due to the unique characteristic of the screw rod, even if no limiting structure is arranged, the sliding block is difficult to move on the screw rod, and the swing amplitude adjustment process is completed.

The arrangement of the limiting groove on the cover plate ensures that the hinged shaft is not pulled to be deviated by the swinging rod, so that the hinged shaft can bear larger force from the swinging rod, and the reciprocating sieve can work more stably.

The one end of articulated shaft under the apron is provided with flange portion, and flange portion is between slider and apron, prevents that the articulated shaft from breaking away from slider and apron in the course of the work, does not influence the removal of articulated shaft on the slider simultaneously again.

The guide wheel sets are arranged on two sides of the reciprocating rod, so that the reciprocating rod is prevented from being deviated in the working process, and meanwhile, the reciprocating rod is smoother to move due to the arrangement of the idler wheels.

6. According to the reciprocating sieve provided by the invention, the second power element in the linear driving component provides power for the work of the lead screw, the second power element supplies power through the movement of the electric brush on the electric rail, a friction power supply mode is adopted, the power supply problem of a direct current motor is solved, the current working condition requirement is met, the wire is prevented from being wound in the rotating wheel by the diameter changing device in the rotating process of the rotating wheel, and the working process of the diameter changing device is safer.

The second power element and the lead screw in the linear driving component are respectively arranged at two sides of the center of the rotating wheel, so that the components can be uniformly distributed, the rotating wheel has better balance when rotating, and the rotating wheel is prevented from generating polarization phenomenon.

In summary, the swing amplitude adjusting mechanism and the reciprocating sieve with the same provided by the invention have the advantages that the sieve body is not biased after the swing amplitude is adjusted, and the working process is stable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a perspective view of a reciprocating screen provided in an embodiment of the present invention;

FIG. 2 is a top view of a reciprocating screen provided with a screen body removed in an embodiment of the present invention;

FIG. 3 is a perspective view of the clutch mechanism;

FIG. 4 is a top view of the clutch mechanism;

FIG. 5 is an enlarged view of portion B of FIG. 2;

FIG. 6 is an enlarged view of portion A of FIG. 1;

FIG. 7 is an exploded view of portion A of FIG. 1;

FIG. 8 is a perspective view of a reducing device;

FIG. 9 is a schematic structural view of a cover plate;

fig. 10 is a schematic view of the structure of the hinge shaft.

Description of reference numerals:

1-a suspender; 2-a frame body; 3-a sieve body; 4-a swing lever; 5-cover plate; 6-articulated shaft; 7-a slide block; 8-a slide rail; 9-power rail; 10-a rotating wheel; 11-a lead screw; 12-a second power element; 13-an electric brush; 14-a first power element; 15-a scaffold; 16-a limiting groove; 17-a flange portion; 18-a first clutch plate; 19-a reciprocating lever; 20-a guide wheel set; 21-a handle; 22-a second clutch plate; 23-an extrusion wheel set; 24-an elastic return member; 25-a second sled; 26-a first slide plate; 27-a deflector rod; 28-pull wire.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.