Vibrating screen capable of relieving fatigue damage of spring support
By installing a balanced ball mount on the upper end of the screen base of the vibrating screen, the impact force of the bottom of the screen to the spring support is reduced, and the problem of prone to cracking of the existing vibrating screen spring support is solved, extending the service life and reducing maintenance costs .
Patent Information
- Application Number
- CN202421011609.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-11
AI Technical Summary
The spring support of existing vibrating screens is prone to cracking during intense back and forth movement and up and down vibration, resulting in a short service life.
The balance ball seat is installed at the upper end of the sieve base. The balance ball seat is composed of a balance ball, an upper bowl seat and a lower bowl seat. The upper bowl seat is fixed with the spring vibration damping system, the lower bowl seat is fixed with the sieve base, and the balance ball is in the upper bowl. Roll in the buffer zone between the seat and the lower bowl seat to reduce the impact force of the bottom of the screen on the spring support.
It effectively reduces fatigue damage of spring support, reduces cracking of spring support and its connection parts, extends the service life of spring support, reduces maintenance costs, and improves the economic service life of vibrating screen.
Smart Images
Figure CN222447216U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vibration equipment, and particularly relates to a vibration screen capable of reducing fatigue damage to a spring support. Background Art
[0002] The vibrating screen uses the principle of vibration motor excitation to make the material be thrown up on the screen surface, and at the same time move forward in a straight line to achieve the purpose of screening with a reasonably matched screen. Among them, the spring vibration reduction system is the key part of the vibrating screen. The upper end of the spring vibration reduction system is connected to the screen body through the upper spring support, and the lower end of the spring vibration reduction system is connected to the screen body base through the lower spring support. The connection between them is a fixed connection. If the connection part is not handled well, during the intense back and forth motion and up and down vibration of the screen body, the spring support and its connection part are prone to cracking, and even cause foundation damage, thereby reducing the service life of the spring vibration reduction system. This urgently requires a technical measure to reduce fatigue damage of the spring support and extend the service life of the spring support. Utility Model Content
[0003] The utility model aims to provide a vibrating screen which reduces fatigue damage of a spring support, and solves the problem that the support of the existing vibrating screen and the connection part thereof are prone to cracking and the service life of the vibrating screen is short.
[0004] The specific technical solutions are as follows:
[0005] A vibrating screen for reducing fatigue damage of spring supports comprises a screen, a screen body, an excitation box, a spring vibration reduction system and a screen body base, the screen body is mounted on the screen body, the spring vibration reduction system is arranged below the screen body, the spring vibration reduction system is arranged above the screen body base, the excitation box drives the screen body to reciprocate, and the screen body vibrates up and down under the action of the spring vibration reduction system; it also comprises a balancing ball seat, the balancing ball seat comprises a balancing ball, an upper bowl seat and a lower bowl seat, the upper bowl seat is fixed to the spring vibration reduction system, the lower bowl seat is fixed to the screen body base, the upper bowl seat is provided with an upwardly concave bowl groove, the lower bowl seat is provided with a downwardly concave bowl groove, the bowl groove of the upper bowl seat and the bowl groove of the lower bowl seat form a buffer zone, the balancing ball is placed in the buffer zone, the size of the buffer zone is larger than the size of the balancing ball, and the balancing ball can roll in the buffer zone.
[0006] Preferably, when the upper bowl seat and the lower bowl seat are aligned vertically and the balancing ball is located in the middle of the buffer zone, a gap is left between the upper bowl seat and the lower bowl seat.
[0007] Preferably, the buffer zone is projected onto the ground into an elongated oval with a flat middle and curved ends, projected onto one side into a circle with a gap, and projected onto the other side into an elongated oval with a gap.
[0008] Preferably, the length of the buffer zone is twice the diameter of the balancing ball, and the width of the buffer zone is equal to or slightly larger than the diameter of the balancing ball.
[0009] Preferably, the balancing ball seat is a steel casting.
[0010] Preferably, there are multiple groups of sieve bases, the height of the sieve base located at the front of the sieve body is less than the height of the sieve base located at the rear of the sieve body, and the sieve body is arranged in an inclined state.
[0011] Preferably, the screen is detachably connected to the screen body, so as to facilitate replacement of screens with different mesh sizes.
[0012] Preferably, the vibration box is arranged below the middle part of the sieve body.
[0013] Preferably, the spring damping system includes an upper spring support, a lower spring support, an outer spring and an inner spring, the inner spring is nested in the outer spring, the upper ends of the outer spring and the inner spring are respectively connected to the upper spring support, and the lower ends of the outer spring and the inner spring are respectively connected to the lower spring support.
[0014] Preferably, the bottom surface of the screen base is fixed on the ground.
[0015] Compared with the existing technology, the utility model has the following beneficial effects:
[0016] The utility model is provided with a balancing ball seat installed on the upper end of the screen body base, because the balancing ball seat is provided with a buffer zone for the balancing ball to roll between the upper bowl seat and the lower bowl seat along the reciprocating motion direction of the screen body, and the lower spring support of the vibration reduction system is connected to the upper bowl seat of the balancing ball seat, and the screen body base is connected to the lower bowl seat of the balancing ball seat. Since the upper bowl seat and the lower bowl seat of the balancing ball seat are in relative motion, the impact force of the screen body bottom on the spring support can be reduced, and the spring support can be effectively protected. It can effectively reduce the fatigue damage of the spring support, reduce the cracking of the connection part between the spring support and it, reduce the maintenance cost, and increase the economic service life of the vibrating screen. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.
[0018] Figure 1 The utility model is a front view of a vibrating screen which reduces fatigue damage of spring supports.
[0019] Figure 2 A plan view of a vibrating screen that reduces fatigue damage to spring supports according to the utility model.
[0020] Figure 3 The utility model is a diagram of a vibration screen damping spring for reducing fatigue damage of a spring support.
[0021] Figure 4 A three-dimensional diagram of a vibrating screen balancing ball seat for reducing fatigue damage to a spring support according to the utility model.
[0022] Figure 5 for Figure 4 , where a is the main view, b is the side view, and c is the top view.
[0023] Among them, the main reference numerals are described as follows:
[0024] 1-screen, 2-screen body, 3-excitation box, 4-vibration reduction system, 41-upper spring support, 42-lower spring support, 43-outer spring, 44-inner spring, 5-balancing ball seat, 51-balancing ball, 52-upper bowl seat, 53-lower bowl seat, 6-screen body base. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inside", "outside", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0027] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "more" is more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there are terms "first", "second" and "third" in the description, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of the embodiments of the present invention based on its overall structure.
[0029] Example 1
[0030] like Figure 1 As shown, a vibrating screen for reducing fatigue damage of spring supports comprises a screen 1, a screen body 2, an exciting box 3, a spring vibration reduction system 4, a balancing ball seat 5 and a screen body base 6.
[0031] The screen 1 is installed on the screen body 2 and is used to screen materials;
[0032] The vibration box 3 is installed below or on one side of the screen body 2 to drive the screen body to reciprocate;
[0033] The spring vibration reduction system 4 is installed below the screen body 2 to make the screen body vibrate in the up and down directions;
[0034] The upper end of the balancing ball seat 5 is connected to the spring vibration reduction system 4, and the lower end is connected to the screen base 6, so as to reduce the impact force of the screen base 6 on the spring vibration reduction system 4;
[0035] The sieve body base 6 is installed below the balancing ball seat 5 and is connected to the sieve body through the balancing ball seat 5 and the spring damping system 4 to provide support for the sieve body;
[0036] The screen body 2 is used to fix the screen 1, and under the action of the excitation box 3, drives the screen 1 to generate reciprocating motion in the front-to-back direction; at the same time, under the action of the spring vibration reduction system 4, drives the screen 1 to generate vibration in the up-and-down direction.
[0037] The present application sets a balancing ball seat 5 between the spring vibration reduction system 4 and the screen body base 6 so that the spring vibration reduction system 4 and the screen body base 6 are movably connected, which can reduce the impact force of the bottom of the screen body base 6 on the spring support of the spring vibration reduction system 4 and effectively protect the spring support. At the same time, it can effectively prevent fatigue damage to the spring support of the spring vibration reduction system 4 and reduce the cracking of the connection between the spring vibration reduction system 4 and the connection, thereby reducing maintenance costs and increasing the economic service life of the vibrating screen.
[0038] Combination Figure 1-2Specifically, the spring damping system 4, the balancing ball seat 5 and the screen body base 6 are four groups, two groups are in the front and two groups are in the back. The height of the screen body base 6 of the front two groups is lower than that of the screen body base 6 of the back two groups. Figure 1 As shown, the screen body 2 is tilted forward as a whole, which is more conducive to the screening of materials.
[0039] Continue to combine Figure 1-2 , the sieve 1 is detachably connected to the sieve body 2. Specifically, slots are provided on both sides of the sieve body 2, and the two sides of the sieve are detachably inserted into the slots, and the sieve 1 and the sieve body 2 are detachably fixed by bolts. The sieves of different mesh sizes can be replaced as needed. In other embodiments, the bolts can also be replaced by buckles, etc.
[0040] In this embodiment, the vibration box 3 is arranged in the middle of the screen body 2. Under the action of the eccentric force of the eccentric block of the vibration box 3, the screen 1 is driven to generate reciprocating motion in the front-rear direction.
[0041] Combination Figure 1 and Figure 3 The spring damping system 4 includes an upper spring support 41, a lower spring support 42, an outer spring 43 and an inner spring 44, wherein the inner spring 44 is nested in the outer spring 43, and the upper ends of the outer spring 43 and the inner spring 44 are respectively connected to the upper spring support 41, and the lower ends of the outer spring 43 and the inner spring 44 are respectively connected to the lower spring support 42. The upper spring support 41 is fixed to the bottom of the screen body 1, and the lower spring support 42 is connected to the balancing ball seat 5. The inner spring 44 is nested in the outer spring 43, which can increase the elastic force of the spring damping system 4.
[0042] Combination Figure 1 The balancing ball and Figure 4 The seat 5 includes a balancing ball 51, an upper bowl seat 52 and a lower bowl seat 53. The upper bowl seat 52 is fixed to the lower spring support 42, and the lower bowl seat 53 is fixed to the screen base 6. The upper bowl seat 52 is provided with an upwardly concave bowl groove, and the lower bowl seat 53 is provided with a downwardly concave bowl groove. The bowl grooves of the upper bowl seat 52 and the lower bowl seat 53 form a buffer zone, and the balancing ball 5 is nested in the buffer zone. The upper bowl seat 52 and the lower bowl seat 53 are not in direct contact (leaving a gap), and the size of the buffer zone formed by the upper bowl seat 52 and the lower bowl seat 53 is larger than the size of the balancing ball 51, and the balancing ball 51 can roll in the buffer zone formed by the upper bowl seat 52 and the lower bowl seat 53. That is, the upper bowl seat 52 and the lower bowl seat 53 are in relative motion, which can reduce the impact force of the screen base 6 on the spring support of the spring vibration reduction system 4 and effectively protect the spring support. Specifically, combined with Figure 4-5 The buffer zone is projected onto the ground in the shape of an elongated ellipse with a flat middle and curved ends (e.g. Figure 5 c), projected to one side as a circle with a gap (such as Figure 5 Figure a), projected to the other side, is an elongated ellipse with a gap (such as Figure 5 (b) of FIG. 1 ). The longest length of the buffer zone is twice the diameter of the balancing ball 51, and the width of the buffer zone is equal to the diameter of the balancing ball. The balancing ball 51 has a certain amount of space for movement, and the upper bowl seat 52 and the lower bowl seat 53 are not easily misaligned too much. In other embodiments, L-shaped blocks can be provided on the front and rear sides of the lower bowl seat 53 to limit the range of movement of the upper bowl seat 52, and further limit the range of movement of the balancing ball 51. Preferably, a buffer spring is provided inside the L-shaped block.
[0043] When the vibrating screen is working, the excitation box 3 drives the screen 1 and the screen body 2 to reciprocate back and forth. At the same time, due to the action of the spring vibration reduction system 4, the screen body 2 vibrates up and down. The upper spring support 41 of the spring vibration reduction system 4 is fixedly connected to the screen body 2, and the lower spring support 42 of the spring vibration reduction system 4 is fixedly connected to the upper bowl seat 51 of the balancing ball seat 5, so that the screen 1, the screen body 2, the excitation box 3, the spring vibration reduction system 4, and the upper bowl seat 52 of the balancing ball seat 5 reciprocate and vibrate up and down together, and the lower bowl seat 53 of the balancing ball seat 5 is fixedly connected to the screen body base 6, and the screen body base 6 is fixed on the ground foundation, so that the lower bowl seat 53 of the balancing ball seat 5 and the screen body base 6 are both fixed, and the balancing ball 51 nested between the upper bowl seat 52 and the lower bowl seat 53 rolls back and forth in the buffer zone surrounded by the upper bowl seat 52 and the lower bowl seat 53, which can reduce the impact of the screen body base 6 on the spring support of the spring vibration reduction system 4, thereby effectively reducing the fatigue damage of the spring support.
[0044] In summary, the present application arranges a balancing ball seat 5 between the spring vibration reduction system 4 and the screen base 6. The balancing ball seat 5 is provided with a buffer zone for the balancing ball 51 to roll between the upper bowl seat 52 and the lower bowl seat 53 along the reciprocating motion direction of the screen body, and the lower spring support 42 of the spring vibration reduction system 4 is connected to the upper bowl seat 52 of the balancing ball seat 5, and the screen base 6 is connected to the lower bowl seat 53 of the balancing ball seat 5. Since the upper bowl seat 52 and the lower bowl seat 53 of the balancing ball seat 5 move relative to each other, the impact force of the bottom of the screen body on the spring support can be reduced, thereby effectively protecting the spring support.
[0045] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed after reading this specification without departing from the principles and purpose of the present invention, but they are protected by patent law as long as they are within the scope of the claims of the present invention.
Claims
1. A vibrating screen for reducing fatigue damage of spring supports, comprising a screen, a screen body, an excitation box, a spring vibration reduction system and a screen body base, wherein the screen is mounted on the screen body, the spring vibration reduction system is arranged below the screen body, the spring vibration reduction system is arranged above the screen body base, the excitation box drives the screen body to reciprocate, and the screen body vibrates up and down under the action of the spring vibration reduction system, characterized in that: It also includes a balancing ball seat, which includes a balancing ball, an upper bowl seat and a lower bowl seat, the upper bowl seat is fixed to the spring vibration reduction system, the lower bowl seat is fixed to the screen body base, the upper bowl seat is provided with an upwardly concave bowl groove, the lower bowl seat is provided with a downwardly concave bowl groove, the bowl grooves of the upper bowl seat and the bowl grooves of the lower bowl seat form a buffer zone, the balancing ball is placed in the buffer zone, the size of the buffer zone is larger than the size of the balancing ball, and the balancing ball can roll in the buffer zone.
2. The vibrating screen for reducing fatigue damage of spring supports according to claim 1, characterized in that: When the upper bowl seat and the lower bowl seat are aligned vertically and the balancing ball is located in the middle of the buffer zone, a gap is left between the upper bowl seat and the lower bowl seat.
3. The vibrating screen for reducing fatigue damage of spring supports according to claim 2, characterized in that: The buffer zone is projected onto the ground into an elongated oval with a flat middle and curved ends, projected onto one side into a circle with a gap, and projected onto the other side into an elongated oval with a gap.
4. The vibrating screen for reducing fatigue damage of spring supports according to claim 3, characterized in that: The length of the buffer zone is twice the diameter of the balancing ball, and the width of the buffer zone is equal to or slightly larger than the diameter of the balancing ball.
5. The vibrating screen for reducing fatigue damage of spring supports according to claim 1, characterized in that: The balancing ball seat is a steel casting.
6. The vibrating screen for reducing fatigue damage of spring supports according to claim 1, characterized in that: There are multiple groups of sieve bases, the height of the sieve base located at the front of the sieve body is less than the height of the sieve base located at the rear of the sieve body, and the sieve body is arranged in an inclined shape.
7. The vibrating screen for reducing fatigue damage of spring supports according to claim 1, characterized in that: The screen is detachably connected to the screen body.
8. The vibrating screen for reducing fatigue damage of spring supports according to claim 1, characterized in that: The vibration box is arranged below the middle part of the sieve body.
9. The vibrating screen for reducing fatigue damage of spring supports according to claim 1, characterized in that: The spring damping system comprises an upper spring support, a lower spring support, an outer spring and an inner spring, wherein the inner spring is nested in the outer spring, the upper ends of the outer spring and the inner spring are respectively connected to the upper spring support, and the lower ends of the outer spring and the inner spring are respectively connected to the lower spring support.
10. The vibrating screen for reducing fatigue damage of spring supports according to claim 1, characterized in that: The bottom surface of the screen body base is fixed on the ground.