Oscillating screen
By designing the combination of support frame, screen box and swing rod mechanism, the arc movement of the screen box is achieved, and the problem that the circular swing screen is not suitable for coarse screening and large-grained materials is solved, and the screening efficiency and device stability are improved.
Patent Information
- Application Number
- CN202422211501.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The existing circular swing screen is not suitable for coarse screening with low screening accuracy requirements and materials with large particle sizes, especially for large quality of screening objects.
A swing screen is designed to achieve arc movement of the screen box by combining the support frame, screen box, front swing rod and rear swing rod mechanism by using the drive mechanism and rocker mechanism, and combined with the inclined setting of the screen box, the uniform distribution and screening of materials are achieved.
It improves the screening efficiency and the stability of the device, and is suitable for coarse screening with low screening accuracy requirements and materials with larger particle sizes. The materials are subject to balanced stress and have good structural stability.
Smart Images
Figure CN223184935U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mining equipment, and particularly relates to a swing screen. Background Art
[0002] A swing screen is a commonly used screening device, also known as a vibrating screen, a shaking table or a vibrating screening machine. It is mainly used for the processes of screening, grading and separating granular materials. Through the action of vibration force, the swing screen makes the materials perform reciprocating swing movements on the screen mesh, so as to achieve the classification and separation of particles with different particle sizes. As a widely used swing screen, a circular swing screen is a low-frequency vibration screen imitating manual shaking. Its principle is: the instantaneous movement is the synthesis of the displacement along the radial direction and the circular movement with this displacement as the axis (helical movement). That is, the exciter with adjustable eccentricity generates a non-linear three-dimensional movement, and the materials also generate the same approximate manual operation movement, so as to achieve the purpose of screening. With the cooperation of screening accessories, a more ideal screening effect can be obtained; it is suitable for spherical, cylindrical, sheet-shaped, and even irregularly shaped materials that are easy to block the screen and require precise screening. Therefore, the circular swing screen is suitable for the screening of fine and ultra-fine powders and particulate materials, and is particularly suitable for screening processes that are difficult to handle, not easy to screen, and have high production.
[0003] However, for coarse screening with low requirements for screening accuracy, and for the cases where the particle size and quality of the screening object are large, the circular swing screen is not very applicable. Therefore, the utility model aims to provide a swing screen that is more suitable for screening objects with large particle size and quality.
[0004] In view of this, the patent of the utility model is specifically proposed. Content of the Utility Model
[0005] In order to solve the above problems, the utility model provides a swing screen. Specifically, the following technical solutions are adopted:
[0006] A swing screen, comprising:
[0007] A support frame assembly;
[0008] A screen box assembly;
[0009] A front swing rod mechanism, the front end of the screen box assembly is swingably installed on the support frame assembly through the front swing rod mechanism;
[0010] A rear swing rod mechanism, the rear end of the screen box assembly is swingably installed on the support frame assembly through the rear swing rod mechanism;
[0011] A driving mechanism, installed on the support frame assembly, having an eccentric rotation output end;
[0012] The rocker mechanism includes a rocker. The upper end of the rocker is rotatably connected to the eccentric rotation output end of the driving mechanism, and the lower end of the rocker is rotatably connected to the sieve box assembly.
[0013] As an optional embodiment of the present utility model, the driving mechanism includes a driving motor and a gearbox. The driving motor is installed on the support frame assembly, the motor shaft of the driving motor is connected to the input shaft of the gearbox, and the eccentric rotation output end is an eccentric wheel installed on the output shaft of the gearbox.
[0014] As an optional embodiment of the present utility model, the eccentric wheel has an eccentric connecting shaft. The upper end of the rocker has a first bearing mounting seat, and a first rolling bearing is installed in the first bearing mounting seat. The inner ring of the first rolling bearing is sleeved on the eccentric connecting shaft.
[0015] As an optional embodiment of the present utility model, the sieve box assembly includes a sieve box, and the front swing rod mechanism includes a front swing rod. The front ends of the two side walls of the sieve box are respectively swingably hung on the support frame assembly through the front swing rod.
[0016] As an optional embodiment of the present utility model, the front ends of the two side walls of the sieve box are respectively fixedly connected with a front connecting seat. The front connecting seat has a front connecting shaft. The lower end of the front swing rod has a second bearing mounting seat, and a second rolling bearing is installed in the second bearing mounting seat. The inner ring of the second rolling bearing is sleeved on the front connecting shaft.
[0017] As an optional embodiment of the present utility model, the rear swing rod mechanism includes a rear swing rod. The rear ends of the two side walls of the sieve box are respectively swingably hung on the support frame assembly through the rear swing rod.
[0018] As an optional embodiment of the present utility model, the rear ends of the two side walls of the sieve box are respectively fixedly connected with a rear connecting seat. The rear connecting seat has a rear connecting shaft. The lower end of the rear swing rod has a third bearing mounting seat, and a third rolling bearing is installed in the third bearing mounting seat. The inner ring of the third rolling bearing is sleeved on the rear connecting shaft.
[0019] As an optional embodiment of the present utility model, the support frame assembly includes a support and a swing rod hanging seat installed on the support. The swing rod hanging seats are arranged corresponding to the front swing rod and the rear swing rod one by one. The upper ends of the front swing rod and the rear swing rod are respectively rotatably hung on the swing rod hanging seats.
[0020] As an optional implementation manner of the present utility model, the sieve box assembly includes a reinforcing cross beam, both ends of the reinforcing cross beam are respectively fixedly connected to the middle parts of the side walls on both sides of the sieve box, the middle part of the reinforcing cross beam is fixedly connected to a rocker connecting seat, the rocker connecting seat has a rocker connecting shaft, the lower end of the rocker has a fourth bearing mounting seat, a fourth rolling bearing is installed in the fourth bearing mounting seat, and the inner ring of the fourth rolling bearing is sleeved on the rocker connecting shaft.
[0021] As an optional implementation manner of the present utility model, the bottom plate of the sieve box is inclined relative to the horizontal plane, and the inclination angle is 6-8 degrees.
[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0023] For a swing sieve of the present utility model, the sieve box assembly is swingably hoisted on the support frame assembly through a front swing rod mechanism and a rear swing rod mechanism. The driving mechanism drives the sieve box assembly to swing back and forth under the support frame assembly through a rocker mechanism. The sieve box generally moves in an arc. Since the lengths of the front swing rod and the rear swing rod are different, the lifting height of the rear part of the sieve box is greater than that of the front part of the sieve box. When the material moves forward, the material at the rear part is lifted up to achieve the swing screening of the material. For a swing sieve of the present utility model, the sieve box assembly is hoisted, and the force distribution is more balanced, which is beneficial to the stability of the overall structure of the device. Description of the Drawings
[0024] Figure 1 Schematic three-dimensional structure diagram of a swing sieve according to an embodiment of the present utility model;
[0025] Figure 2 Left view of a swing sieve according to an embodiment of the present utility model;
[0026] Figure 3 In an embodiment of the present utility model, a swing sieve is along Figure 2 Cross-sectional view taken along plane B-B. Detailed Embodiment
[0027] In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.
[0028] Therefore, the following detailed description of the embodiments of the present utility model is not intended to limit the scope of the present utility model claimed, but merely represents some embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0029] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments may be combined with each other.
[0030] It should be noted that like reference numerals and letters refer to like items in the following figures; therefore, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.
[0032] See Figures 1-3 As shown, a swing sieve of this embodiment includes:
[0033] A support frame assembly 9;
[0034] A sieve box assembly 8;
[0035] A front swing rod mechanism 5, the front end of the sieve box assembly 8 is swingably mounted on the support frame assembly 9 through the front swing rod mechanism 5;
[0036] A rear swing rod mechanism 6, the rear end of the sieve box assembly 8 is swingably mounted on the support frame assembly 9 through the rear swing rod mechanism 6;
[0037] A driving mechanism, mounted on the support frame assembly 9 and having an eccentric rotation output end;
[0038] A rocker mechanism 4, including a rocker 401, the upper end of the rocker 401 is rotatably connected to the eccentric rotation output end of the driving mechanism, and the lower end of the rocker 401 is rotatably connected to the sieve box assembly 8.
[0039] For a swing sieve of this embodiment, the sieve box assembly 8 is swingably hoisted on the support frame assembly 9 through the front swing rod mechanism 5 and the rear swing rod mechanism 6, and the driving mechanism drives the sieve box assembly 8 to reciprocally swing under the support frame assembly 9 through the rocker mechanism 4, so as to realize the swing screening of materials. For a swing sieve of this embodiment, the sieve box assembly 8 is hoisted, and the force distribution is more balanced, which is beneficial to the stability of the overall structure of the device.
[0040] As an alternative implementation of this embodiment, the drive mechanism in this embodiment includes a drive motor 1 and a gearbox 2. The drive motor 1 is installed on the support frame assembly 9, and the motor shaft of the drive motor 1 is connected to the input shaft of the gearbox 2. The eccentric rotation output end is an eccentric wheel 3 installed on the output shaft of the gearbox 2. The gearbox 2 in this embodiment adopts a gear transmission structure to achieve speed change of the rotational output of the drive motor 1, and the output speed of the gearbox 2 is 180 - 200 revolutions per minute.
[0041] Furthermore, the eccentric wheel 3 in this embodiment has an eccentric connecting shaft. The upper end of the rocker 401 has a first bearing mounting seat 402, and a first rolling bearing is installed in the first bearing mounting seat 402. The inner ring of the first rolling bearing is sleeved on the eccentric connecting shaft.
[0042] Specifically, the central axis of the eccentric wheel 3 in this embodiment is connected to the output shaft of the gearbox 2. The eccentric connecting shaft of the eccentric wheel 3 is eccentrically arranged, and the eccentric connecting shaft is rotatably connected to the rocker 401, thereby realizing the conversion of the rotation of the drive motor 1 into the swing of the rocker 401.
[0043] Specifically, the eccentricity of the eccentric wheel 3 in this embodiment is 20 - 30 mm. The eccentric wheel 3 drives the rocker 401 to swing, and the swing amplitude is 40 - 60 mm. The rocker 401 drives the sieve box assembly 8 to swing.
[0044] As an alternative implementation of this embodiment, the sieve box assembly 8 in this embodiment includes a sieve box 801. The front swing rod mechanism 5 includes a front swing rod 501. The front ends of the two side walls of the sieve box 801 are respectively swingably hung on the support frame assembly 9 through the front swing rod 501.
[0045] Specifically, in order to achieve the swingable installation between the front swing rod 501 and the sieve box 801, the front ends of the two side walls of the sieve box 801 in this embodiment are respectively fixedly connected with front connection seats 803. The front connection seats 803 have front connection shafts. The lower end of the front swing rod 501 has a second bearing mounting seat, and a second rolling bearing is installed in the second bearing mounting seat. The inner ring of the second rolling bearing is sleeved on the front connection shaft.
[0046] As an alternative implementation of this embodiment, the rear swing rod mechanism 6 in this embodiment includes a rear swing rod 601. The rear ends of the two side walls of the sieve box 801 are respectively swingably hung on the support frame assembly 9 through the rear swing rod 601.
[0047] Specifically, in order to achieve the swingable installation between the rear swing rod 601 and the sieve box 801, in this embodiment, rear connection seats 804 are respectively fixedly connected to the rear ends of the two side walls of the sieve box 801. The rear connection seats 804 have rear connection shafts. The lower end of the rear swing rod 601 has a third bearing mounting seat, and a third rolling bearing is installed in the third bearing mounting seat. The inner ring of the third rolling bearing is sleeved on the rear connection shaft.
[0048] As an alternative embodiment of this embodiment, in order to achieve the swingable installation between the front swing rod 501, the rear swing rod 601 and the support frame assembly 9, the support frame assembly 9 in this embodiment includes a bracket and a swing rod lifting seat 805 installed on the bracket. The swing rod lifting seats 805 are arranged corresponding to the front swing rod 501 and the rear swing rod 601 one by one. The upper ends of the front swing rod 501 and the rear swing rod 601 are respectively rotatably lifted on the swing rod lifting seats 805.
[0049] As an alternative embodiment of this embodiment, in order to achieve the rotatable connection between the rocker 401 and the sieve box assembly 8, the sieve box assembly 8 in this embodiment includes a reinforcing cross beam 802. The two ends of the reinforcing cross beam 802 are respectively fixedly connected to the middle parts of the two side walls of the sieve box 801. The middle part of the reinforcing cross beam 802 is fixedly connected to a rocker connection seat. The rocker connection seat has a rocker connection shaft. The lower end of the rocker 401 has a fourth bearing mounting seat 403, and a fourth rolling bearing is installed in the fourth bearing mounting seat 403. The inner ring of the fourth rolling bearing is sleeved on the rocker connection shaft.
[0050] The sieve box assembly 8 of this embodiment is lifted by the front swing rod 501 and the rear swing rod 601, and the overall sieve box 8 moves in an arc. Since the lengths of the front swing rod 501 and the rear swing rod 601 are not equal, the lifting height of the rear part of the sieve box 801 is greater than the lifting height of the front part of the sieve box. When the material moves forward, the material at the rear part is lifted up for screening.
[0051] As an alternative embodiment of this embodiment, the bottom plate of the sieve box 801 in this embodiment is inclined relative to the horizontal plane, and the inclination angle is 6 to 8 degrees. In this way, during the swinging process of the material, under the action of gravity and the front vibration force, the material automatically moves forward.
[0052] In addition, a distributor 7 is arranged on the support frame assembly 9 of this embodiment corresponding to the rear part of the sieve box 801, and the distributor 7 evenly distributes the material to the sieve box 801.
[0053] The above embodiments are only used to illustrate the present utility model and not to limit the technical solutions described in the present utility model. Although this specification has described the present utility model in detail with reference to the above respective embodiments, the present utility model is not limited to the above specific implementation manners. Therefore, any modification or equivalent replacement made to the present utility model; and all technical solutions and their improvements that do not depart from the spirit and scope of the utility model are covered within the scope of the claims of the present utility model.
Claims
1. A swing screen, characterized in that: include: Support frame assembly; Screen box assembly; A front swing lever mechanism, wherein the front end of the screen box assembly is swingably mounted on the support frame assembly via the front swing lever mechanism; A rear swing lever mechanism, wherein the rear end of the screen box assembly is swingably mounted on the support frame assembly via the rear swing lever mechanism; A driving mechanism, mounted on the support frame assembly, having an eccentric rotation output end; The rocker mechanism comprises a rocker, the upper end of the rocker is rotatably connected to the eccentric rotation output end of the driving mechanism, and the lower end of the rocker is rotatably connected to the screen box assembly.
2. The oscillating screen according to claim 1, characterized in that: The driving mechanism includes a driving motor and a gearbox. The driving motor is installed on the support frame assembly. The motor shaft of the driving motor is connected to the input shaft of the gearbox. The eccentric rotating output end is an eccentric wheel installed on the output shaft of the gearbox.
3. The oscillating screen according to claim 2, characterized in that: The eccentric wheel has an eccentric connecting shaft, the upper end of the rocker has a first bearing mounting seat, a first rolling bearing is mounted in the first bearing mounting seat, and the inner ring of the first rolling bearing is sleeved on the eccentric connecting shaft.
4. The oscillating screen according to claim 1, characterized in that: The screen box assembly includes a screen box, the front swing arm mechanism includes a front swing arm, and the front ends of the side walls on both sides of the screen box are swingably hung on the support frame assembly through the front swing arms.
5. The oscillating screen according to claim 4, characterized in that: The front ends of the side walls on both sides of the screen box are respectively fixedly connected to the front connecting seats, the front connecting seats have a front connecting shaft, the lower end of the front swing arm has a second bearing mounting seat, the second bearing mounting seat is installed in the second rolling bearing, and the inner ring of the second rolling bearing is sleeved on the front connecting shaft.
6. An oscillating screen according to claim 4 or 5, characterized in that: The rear swing rod mechanism includes a rear swing rod, and the rear ends of the side walls on both sides of the screen box are swingably hung on the support frame assembly through the rear swing rod.
7. The oscillating screen according to claim 6, characterized in that: The rear ends of the side walls on both sides of the screen box are respectively fixedly connected to the rear connecting seats, which have a rear connecting shaft. The lower end of the rear swing arm has a third bearing mounting seat, in which a third rolling bearing is installed, and the inner ring of the third rolling bearing is sleeved on the rear connecting shaft.
8. The oscillating screen according to claim 7, characterized in that: The support frame assembly includes a bracket and a rocker arm hanging seat installed on the bracket. The rocker arm hanging seat is arranged in a one-to-one correspondence with the front rocker arm and the rear rocker arm. The upper end of the front rocker arm and the upper end of the rear rocker arm are respectively rotatably hung on the rocker arm hanging seat.
9. The oscillating screen according to claim 4, characterized in that: The screen box assembly includes a reinforcing beam, the two ends of which are fixedly connected to the middle parts of the side walls on both sides of the screen box, the middle part of the reinforcing beam is fixedly connected to the rocker connecting seat, the rocker connecting seat has a rocker connecting shaft, the lower end of the rocker has a fourth bearing mounting seat, the fourth rolling bearing is installed in the fourth bearing mounting seat, and the inner ring of the fourth rolling bearing is sleeved on the rocker connecting shaft.
10. The oscillating screen according to claim 4, characterized in that: The bottom plate of the screen box is inclined relative to the horizontal plane, and the inclination angle is 6 to 8 degrees.