Dynamic balance type square rocking sieve
By combining the advantages of circular and square gyratory screens, a dynamic balance square gyratory screen was designed, which solved the problems of imprecise screening of wood chips and equipment instability, achieving efficient and stable wood chip screening results, and is suitable for industrial production.
Patent Information
- Application Number
- CN202423313598.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing square gyratory screens have problems such as imprecise screening, unstable vibration, high noise, high failure rate and short service life when screening wood chips. In particular, when wood chips are mixed with fine wood shavings, the screening efficiency and equipment stability are affected.
A dynamic balancing square gyratory screen was designed, combining the advantages of circular and square gyratory screens. The machine achieves dynamic balance through an eccentrically set drive shaft, connecting shaft, and auxiliary balancing plate. The screening accuracy and efficiency are improved by adjusting the screen inclination angle and eccentric distance. The stability of the equipment is enhanced by the addition of a protective cover and reinforcing plate.
It achieves efficient and high-precision screening of wood chips, reduces noise, improves equipment stability and service life, adapts to different screening needs, and meets the requirements of industrialized production lines.
Smart Images
Figure CN223717669U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to screening machinery technical field, concretely relates to a dynamic balance formula square swing screen. BACKGROUND
[0002] In the swing screen machinery field, there are circular swing screen and square swing screen, the two structures are different, the action mode, screening efficiency and applicable scene of material are also different. The circular swing screen imitates manual screening, through the action of the exciter, the material jumps in the vertical direction and does elliptical motion in the horizontal direction, the whole process can be understood as three-dimensional rolling motion of horizontal and jumping, this action mode is beneficial to the uniform distribution of material on the screen surface, and is more suitable for powder and particulate material, but the horizontal setting of the screen leads to the relatively low screening efficiency of the screen with high screening precision; the square swing screen adopts square screen design, and the material does reciprocating linear motion under the action of the exciter, and the square swing screen can adjust the inclination angle of the screen according to the requirement to improve the screening efficiency.
[0003] When screening wood chip material, the prior art adopts square swing screen structure. But the wood chip material mixed with a lot of fine wood chips after crushing and is easy to adhere to the qualified wood chip, the motion mode of the material in the square swing screen can screen the large size material, but the screening is not fine. Meanwhile, the working plane of the exciter of the existing wood chip screen is not parallel to the screen plane, the whole machine is in a non-dynamic balance state, the swing screen vibrates under the action of centrifugal force, thereby affecting the stability of the swing screen operation; in addition, the dynamic imbalance of the swing screen also causes large noise in the working state of the whole machine, and the failure rate is high; more importantly, it causes deflection and internal stress, shortens the service life of the swing screen, and is not easy to long-term industrialized production line. CONTENT OF THE UTILITY MODEL
[0004] In order to solve the above problems, the utility model designs a dynamic balance formula square swing screen, which ingeniously combines the advantages of circular swing screen and square swing screen, and creatively designs a dynamic balance formula wood chip swing screen combined with the adjusting type vibration mechanism, which breakthroughly solves the technical problems existing in the present square swing screen.
[0005] In order to achieve the above object, the utility model provides a dynamic balance formula square swing screen, a dynamic balance formula square swing screen, including base, the screen compartment that sets up in the base top and the vibration mechanism between the base and the screen compartment, the vibration mechanism is connected with drive motor to provide the exciting force for the whole machine, the vibration mechanism includes drive shaft and the linkage shaft that set up in the screen compartment bottom and with its relative rotation, wherein the drive shaft and linkage shaft eccentricity set up, drive shaft and linkage shaft are respectively set with first auxiliary balance plate and second auxiliary balance plate, and the fixed end of two auxiliary balance plates is connected through the long strip hole on it.
[0006] As a further improvement of the utility model discloses a dynamic balance formula square swing screen: one end of first auxiliary balance plate and second auxiliary balance plate extends outward and the extension direction is perpendicular to each other, and the extension end of two auxiliary balance plates is provided with the hole of adding; the fixed end structure of two auxiliary balance plates is correspondingly arranged on the upper and lower, wherein a plurality of long strip holes are arranged on the second auxiliary balance plate, and the length direction of the long strip hole is same with the extension direction of the first auxiliary balance plate, and the circular fixed hole is arranged on the first auxiliary balance plate corresponding to the long strip hole.
[0007] As a further improvement of the utility model discloses a dynamic balance formula square swing screen: the screen compartment is square structure, and the screen compartment has multiple screening chambers, and the screen compartment is horizontally arranged relative to the base.
[0008] As a further improvement of the utility model discloses a dynamic balance formula square swing screen: the flange sleeve is fixedly arranged at the center of the bottom of the screen compartment, and the upper end of the linkage shaft is installed in the flange sleeve through a bearing.
[0009] As a further improvement of the utility model discloses a dynamic balance formula square swing screen: the screen compartment is connected with the base through the elastic support frame arranged at the four end corners thereof.
[0010] As a further improvement of the utility model discloses a dynamic balance formula square swing screen: the screen compartment is connected with the base through the elastic support frame arranged at the four end corners thereof.
[0011] As a further improvement of the utility model discloses a dynamic balance formula square swing screen: the base frame middle part is provided with longitudinal reinforcing rod, and the lower end surface of the conical reinforcing plate is fixedly connected with the base cross bar and longitudinal reinforcing rod, and the side surface of the conical reinforcing plate is provided with reinforcing rib.
[0012] As a further improvement of the dynamic balance type square swing screen of the utility model, the stabilizing plates are rotatably arranged at the two end corners of one end of the base, and a plurality of vertically arranged threaded holes are arranged at the two end corners of the other end.
[0013] As a further improvement of the dynamic balance type square swing screen of the utility model, the stabilizing plates are rotatably arranged at the two end corners of one end of the base, and a plurality of vertically arranged threaded holes are arranged at the two end corners of the other end.
[0014] Beneficial effects
[0015] Compared with the prior art, the dynamic balance type square swing screen has the following beneficial effects:
[0016] First, the dynamic balance type square swing screen of the utility model combines the structures of the square swing screen and the circular swing screen based on the working principles and advantages of the two, and uses the vibration mechanism of the patent application to correct the exciting force twice by eccentrically arranging the driving shaft and the linkage shaft and setting the auxiliary balance plates, so that the dynamic balance of the whole machine is achieved, and the high-efficiency and high-precision screening requirements for wood chips are fully met. The square swing screen of the patent application has broken through the existing problem of the square swing screen, that is, the screening angle can be adjusted at will according to the yield and precision requirements of the customer.
[0017] Second, the dynamic balance type square swing screen of the utility model is eccentrically and separately designed between the driving shaft and the linkage shaft, and is connected and fixed through the two auxiliary balance plates thereon. The separate design can adjust the distance between the two auxiliary balance plates according to the actual requirements of the customer, so as to adjust the swing amplitude of the screen mesh. The long slot on the second auxiliary balance plate is used in cooperation with the threaded hole on the first auxiliary balance plate to adjust the eccentric distance between the driving shaft and the linkage shaft. The additional hole on the first auxiliary balance plate is convenient for adding counterweight blocks according to the adjustment requirements in the later period, and cooperates with the eccentric block at the belt pulley to achieve the balance of the whole machine.
[0018] Third, the dynamic balance type square swing screen of the utility model covers the vibration mechanism in the square protective cover and the conical reinforcing plate, so as to avoid the interference of flying dust. Meanwhile, the setting and fixed installation of the conical reinforcing plate and the longitudinal reinforcing rod of the base improve the stability of the whole machine.
[0019] Fourth, the dynamic balance type square swing screen of the utility model achieves dynamic balance, and has no installation limitation. The user can adjust the whole machine within the range of 0-35° according to the requirements and use environment, and the whole machine can achieve automatic balance. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1It is the main view structural schematic diagram of the dynamic balance type square swing screen of the utility model.
[0021] Figure 2 It is the structural schematic diagram of the dynamic balance type square swing screen of the utility model.
[0022] Figure 3 It is the bottom view structural schematic diagram of the dynamic balance type square swing screen of the utility model.
[0023] Figure 4 It is the partial structural schematic diagram of the dynamic balance type square swing screen of the utility model.
[0024] Figure 5 It is the structural schematic diagram of the vibration mechanism of the utility model.
[0025] Mark in drawing: 1, screen compartment, 101, square protective cover, 102, flange sleeve, 103, bearing sleeve, 104, elastic support frame, 2, vibration mechanism, 201, driving shaft, 202, connecting shaft, 203, first auxiliary balance plate, 204, second auxiliary balance plate, 205, long hole, 206, belt pulley, 207, eccentric block, 3, base, 401, driving motor, 402, conical reinforcing plate. DETAILED DESCRIPTION
[0026] The utility model will be further described in connection with the drawings and specific embodiment, and this embodiment takes the technical scheme of the utility model as the premise, and gives detailed implementation mode.
[0027] Example 1
[0028] The dynamic balance type square swing screen of the utility model is based on the working principle of swing screen, and the vibration mechanism 2 is ingeniously designed to improve the existing wood chip screen structure, so that the dynamic balance of the square swing screen for screening wood chips is realized, and the screening precision, screening efficiency and use convenience are greatly improved. The dynamic balance type square swing screen of the utility model comprises a base 3, a screen compartment 1 arranged above the base 3 and a vibration mechanism 2 located between the base 3 and the screen compartment 1. Among them, the screen compartment 1 is a square structure, the screen compartment 1 has multiple screening chambers, and the screen compartment 1 is arranged horizontally relative to the base 3, and the screen compartment 1 is connected with the base 3 through the elastic support frame 104 arranged at the four end corners of the screen compartment 1 and the vibration mechanism 2 installed at the center of the bottom surface of the screen compartment 1; the vibration mechanism 2 is connected with the driving motor 401 to provide exciting force for the whole machine.
[0029] The vibrating mechanism 2 comprises a driving shaft 201 connected with the driving motor 401 and a linkage shaft 202 arranged at the bottom of the screening box 1 and capable of rotating relative to the screening box 1, wherein the driving shaft 201 and the linkage shaft 202 are eccentrically arranged, the driving shaft 201 and the linkage shaft 202 are respectively sleeved with a first auxiliary balance plate 203 and a second auxiliary balance plate 204, and the fixed ends of the two auxiliary balance plates are bolted through the long strip holes 205 thereon; specifically, one end of each of the first auxiliary balance plate 203 and the second auxiliary balance plate 204 extends outward and the extending directions thereof are perpendicular to each other, and the extending end portions of the two auxiliary balance plates are provided with additional holes; the fixed end portions of the two auxiliary balance plates are arranged in correspondence with each other in up and down directions, wherein a plurality of long strip holes 205 are arranged on the second auxiliary balance plate 204, and the length directions of the long strip holes 205 are the same as the extending directions of the first auxiliary balance plate 203, and circular fixed holes are arranged on the first auxiliary balance plate 203 in correspondence with the long strip holes 205. The split type design can adjust the distance between the two auxiliary balance plates according to the actual needs of customers to adjust the swing amplitude of the screening net; the long strip holes 205 on the second auxiliary balance plate 204 are used in cooperation with the threaded holes on the first auxiliary balance plate 203 to adjust the eccentric distance between the driving shaft 201 and the linkage shaft 202; the lower end of the driving shaft 201 is provided with a belt pulley 206, and an eccentric block 207 is mounted on the belt pulley 206, and the mounting direction of the eccentric block 207 is the same as the extending direction of the second auxiliary balance plate 204.
[0030] A flange sleeve 102 is fixedly arranged at the center of the bottom of the screening box 1, and the upper end of the linkage shaft 202 is mounted in the flange sleeve 102 through a bearing; a square protective cover 101 is arranged at the bottom of the screening box 1, the square protective cover 101 is provided with a folded edge at the free end face, the flange sleeve 102 is located in the square protective cover 101, and the square protective cover 101 is arranged to cover the bearing in the vibrating mechanism 2 and to protect the bearing from dust interference during the working of the swing screen to the maximum, and more importantly, the joint edge of the square protective cover 101 and the screening box 1 can be used as a reinforcing rib of the bottom plate of the screening box 1 to improve the strength and stability of the screening frame; the driving shaft 201 is sleeved with a bearing sleeve 103, the bearing sleeve 103 is fixedly mounted with a conical reinforcing plate 402 outside, the belt pulley 206 and the eccentric block 207 are located in the conical reinforcing plate 402, the driving motor 401 is fixed outside the conical reinforcing plate 402 and is in transmission connection with the belt pulley 206 through a belt. A longitudinal reinforcing rod is arranged in the middle of the frame of the base 3, the lower end face of the conical reinforcing plate 402 is fixedly connected with the horizontal rod and the longitudinal reinforcing rod of the base 3, and the side face of the conical reinforcing plate 402 is provided with a reinforcing rib. The dynamic balance type square swing screen disclosed in the utility model is provided with a split type adjustable vibrating mechanism 2, the square swing screen reaches dynamic balance, and the stable connection of the reinforcing components ensures the stability of the whole machine, so that the user can adjust the inclination angle of the whole machine according to the screening needs during use.
[0031] Example 2
[0032] The dynamic balance type square swing screen described in the embodiment has the same structure as the dynamic balance type square swing screen described in the embodiment 1, and the difference is that the four end corners of the base 3 are fixedly provided with stabilizing plates, the stabilizing plates are fixed to the end corners of the base 3 through bolts, and the other two end corners of the base 3 are provided with a plurality of vertically arranged threaded holes.
[0033] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the present application, and any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application still belong to the scope of the present application.
Claims
1. A dynamic balancing square gyratory screen, comprising a base (3), a screen chamber (1) disposed above the base (3), and a vibration mechanism (2) located between the base (3) and the screen chamber (1), wherein the vibration mechanism (2) provides excitation force to the whole machine by being connected to a drive motor (401), characterized in that: The vibrating mechanism (2) comprises a driving shaft (201) connected with a driving motor (401) and a linkage shaft (202) arranged at the bottom of the screening box (1) and capable of rotating relative to the screening box (1), wherein the driving shaft (201) and the linkage shaft (202) are arranged eccentrically, the driving shaft (201) and the linkage shaft (202) are respectively sleeved with a first auxiliary balance plate (203) and a second auxiliary balance plate (204), and the fixed ends of the two auxiliary balance plates are bolted through the long holes (205) thereon.
2. A dynamic balancing square swinging screen as claimed in claim 1, characterized in that: One end of the first auxiliary balance plate (203) and the second auxiliary balance plate (204) extends outward and the extension directions thereof are perpendicular to each other, the extension ends of the two auxiliary balance plates are provided with additional holes, and the fixed end portions of the two auxiliary balance plates are arranged in correspondence with each other in up and down directions, wherein the second auxiliary balance plate (204) is provided with a plurality of long holes (205), and the length direction of the long holes (205) is the same as the extension direction of the first auxiliary balance plate (203), and the first auxiliary balance plate (203) is provided with a circular fixing hole at the position corresponding to the long hole (205).
3. A dynamic balanced square swinging screen as claimed in claim 2, characterized in that: The screening box (1) has a square structure, the screening box (1) has a plurality of screening chambers, and the screening box (1) is arranged horizontally relative to the base (3).
4. A dynamic balanced square swinging screen as claimed in claim 3, wherein: A flange sleeve (102) is fixedly arranged at the center of the bottom of the screening box (1), and the upper end of the linkage shaft (202) is mounted in the flange sleeve (102) through a bearing.
5. A dynamic balanced square swinging screen as claimed in claim 4, characterized in that: The screening box (1) is connected with the base (3) through the elastic support frames (104) arranged at the four end corners of the screening box (1).
6. A dynamic balanced square swinging screen as claimed in claim 5, characterized in that: The bottom of the screening box (1) is provided with a square protective cover (101), the square protective cover (101) has a folded edge at the free end face, and the flange sleeve (102) is located in the square protective cover (101); the driving shaft (201) is sleeved with a bearing sleeve (103), the bearing sleeve (103) is fixedly installed with a conical reinforcing plate (402) outside, the belt pulley (206) and the eccentric block (207) are located in the conical reinforcing plate (402), and the driving motor (401) is fixed outside the conical reinforcing plate (402) and is in transmission connection with the belt pulley (206) through a belt.
7. A dynamic balanced square swinging screen as claimed in claim 6, characterized in that: The middle part of the frame of the base (3) is provided with a longitudinal reinforcing rod, the lower end face of the conical reinforcing plate (402) is fixedly connected with the horizontal rod and the longitudinal reinforcing rod of the base (3), and the side face of the conical reinforcing plate (402) is provided with reinforcing ribs.
8. A dynamic balanced square swinging screen as claimed in claim 7, characterized in that: The base (3) is provided with a stabilizing plate at each of the four end corners.
9. A dynamic balanced square swinging screen as claimed in claim 8, characterized in that: The stabilizing plates are rotatably arranged at the two end corners of one end of the base (3), and a plurality of threaded holes arranged in vertical direction are arranged at the two end corners of the other end.