Vibration exciter and screening machine

Abstract

The utility model discloses a vibration exciter and a screening machine, and relates to the technical field of screening machinery, the vibration exciter comprises two fixing plates which are correspondingly arranged and vibration excitation assemblies which are respectively connected with the two fixing plates, and a plurality of supporting pieces are arranged between the tops of the two fixing plates. A reinforcing structure is arranged between at least two adjacent supporting pieces in the multiple supporting pieces, the supporting pieces and the reinforcing structures are arranged, a traditional vibration exciter is only provided with two fixing plates and a vibration excitation assembly connected with the fixing plates, and therefore in the violent vibration excitation process of the traditional vibration exciter, the vibration excitation effect of the vibration exciter is greatly improved. Due to the fact that the supporting effect on the two fixing plates is lacked, a vibration shaft and a hollow shaft in the vibration excitation assembly are very prone to breakage, and then stable work of the vibration exciter is affected. The stability of the vibration exciter in the working process is improved, and the technical problem that the hollow shaft and the vibration shaft in the vibration excitation assembly are broken is solved.

Description

Technical Field

[0001] This utility model relates to the field of screening machinery technology, and in particular to a vibrator and a screening machine. Background Technology

[0002] A vibration exciter is a device attached to certain machinery and equipment to generate excitation force; it is an important component utilizing mechanical vibration. A vibration exciter enables excited objects to obtain vibrations of a certain form and magnitude, thereby conducting vibration and strength tests on the objects, or calibrating vibration testing instruments and sensors. Vibration exciters can also be used as excitation components to form vibrating machinery for tasks such as conveying, screening, compacting, shaping, and tamping soil and gravel. More specifically, vibration exciters are applied to dewatering screens and linear vibrating screens, causing them to perform reciprocating linear motion to screen materials. However, in existing excitation assemblies, the hollow shaft and vibrating shaft are prone to breakage during operation.

[0003] An existing patent (publication number: CN218167671U) discloses a vibrator assembly and a screening device equipped with the vibrator assembly. The vibrator assembly includes: two corresponding support plates; two through shafts mounted on the two support plates, each through shaft including a hollow shaft and a vibration shaft disposed within the hollow shaft, the hollow shaft being fixed between the two support plates and rotatably connected to the vibration shaft; and a counterweight eccentric device disposed at both ends of the two vibration shafts to enhance the vibration of the vibration shafts. The counterweight eccentric device is located on the opposite outer sides of the two support plates. During operation, the two vibration shafts are driven to rotate in opposite directions with equal frequencies. The counterweight eccentric device rotates with the vibration shafts. The centrifugal forces generated by the counterweight eccentric devices at both ends of the two vibration shafts are superimposed along the vibration direction of the vibration shafts and canceled out by centrifugal force in the opposite direction, thereby enhancing the vibration of the two vibration shafts.

[0004] The above-mentioned vibrator adopts a solution to solve the problem of vibration in the vibrator, which consists of two corresponding support plates and two through shafts mounted on the two support plates. The through shafts include a hollow shaft and a vibration shaft set inside the hollow shaft. In the actual operation of the vibrator, due to the violent vibration, the hollow shaft and the vibration shaft are prone to breakage. Therefore, we propose a vibrator to solve the above problem. Utility Model Content

[0005] This utility model provides a vibrator and a screening machine, which solves the technical problem that the vibration shaft and hollow shaft are prone to breakage during the operation of the current vibrator, resulting in unstable operation of the vibrator.

[0006] To solve the above-mentioned technical problems, the present invention provides a vibrator, including two fixed plates arranged correspondingly and a vibration assembly connected to the two fixed plates respectively. A plurality of support members are arranged between the tops of the two fixed plates, and a reinforcing structure is arranged between at least two adjacent support members.

[0007] Preferably, the reinforcing structure includes reinforcing members that are respectively connected to two adjacent supporting members.

[0008] The above technical solution improves the stability of the vibrator during operation by strengthening the structure, including reinforcing members connected to two adjacent support members, and prevents the hollow shaft and vibration shaft in the vibrating assembly from breaking when the vibrator is violently vibrating.

[0009] Preferably, two reinforcing members are connected between two adjacent supporting members, and the two reinforcing members form an angle or are parallel to each other.

[0010] The above technical solution involves connecting two reinforcing members between two adjacent support members. The two reinforcing members can form an angle or be parallel to each other, which can achieve the purpose of stabilizing the operation of the vibrator.

[0011] Preferably, there are three support members that are spaced apart on the same plane, two of the three support members are symmetrically distributed with the support member in the central position, and the reinforcing members connected to the two adjacent support members are symmetrically distributed with the reinforcing members in the central position.

[0012] The above technical solution is adopted: there are three support members that are spaced apart on the same plane. Two of the three support members are symmetrically distributed with the support member in the middle position, and the reinforcing members connected to the two adjacent support members are symmetrically distributed with the reinforcing members in the middle position, which further improves the stability of the vibrator operation.

[0013] Preferably, each of the fixed plates has an inner surface facing each other connected to a mounting plate via a detachable structure, one end of the support member is fixed to one of the mounting plates, and the other end of the support member is fixed to the other mounting plate.

[0014] The above technical solution is adopted: each fixed plate is connected to a mounting plate by a detachable structure on its opposing inner surfaces. One end of the support is fixed to one of the mounting plates, and the other end of the support is fixed to another mounting plate, which facilitates the disassembly and installation of the support and the fixed plate.

[0015] Preferably, the mounting plate has a positioning shoulder folded inward on its upper side, and the corresponding end of the support member has a positioning notch on its top side. The positioning shoulder is engaged in the positioning notch, and the mounting plate and the support member are welded together.

[0016] The above technical solution is adopted as follows: the upper side of the mounting plate is folded inward to form a positioning shoulder, and the corresponding end of the support member is provided with a positioning notch. The positioning shoulder is locked in the positioning notch, and the mounting plate and the support member are welded together, so that the support member can be easily installed and welded to the mounting plate.

[0017] Preferably, the detachable structure includes a plurality of one-to-one threaded holes on the mounting plate and the fixing plate, and bolts are provided on the threaded holes, and the mounting plate and the fixing plate are fixedly connected by bolts.

[0018] The above technical solution is adopted: the detachable structure includes several one-to-one threaded holes on the mounting plate and the fixing plate, and bolts are provided on the threaded holes. The mounting plate and the fixing plate are fixedly connected by bolts, which facilitates the disassembly and installation of the mounting plate and the fixing plate.

[0019] Preferably, the support member is any one of "H"-shaped steel, "I"-shaped steel, "T"-shaped steel, channel steel, angle steel, and square tube steel.

[0020] By adopting the above technical solution, a good supporting effect can be achieved by using any one of the following: H-beams, I-beams, T-beams, channel steel, angle steel, and square tube steel as the supporting components.

[0021] Preferably, at least one bottom support rod is connected between the bottoms of the two fixing plates.

[0022] The above technical solution is adopted: by connecting at least one bottom support rod between the bottoms of the two fixed plates, the support is further improved, and the breakage of the hollow shaft and vibration shaft in the excitation assembly is prevented.

[0023] This application further discloses a screening machine, which includes a vibrator.

[0024] Compared with related technologies, this utility model has the following beneficial effects:

[0025] 1. Compared with traditional vibrators, this utility model incorporates support members and reinforcing structures. Several support members are provided between the tops of the two fixed plates, and a reinforcing structure is provided between at least two adjacent support members. Traditional vibrators only have two fixed plates and a vibration assembly connected to the fixed plates. Therefore, during intense vibration, the vibration shaft and hollow shaft in the vibration assembly are very prone to breakage due to the lack of support for the two fixed plates, which affects the stable operation of the vibrator. Compared with traditional vibrators, this new model improves the stability of the vibrator's operation and prevents the technical problem of breakage of the hollow shaft and vibration shaft in the vibration assembly. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a vibrator;

[0027] Figure 2 This is a top view of a vibrator.

[0028] Figure 3 This is a structural schematic diagram of a fixed plate, mounting plate, and support components in a vibrator.

[0029] Figure 4 This is an enlarged schematic diagram of point A in a vibrator.

[0030] The following are the labels in the diagram: 1. Fixed plate; 2. Vibration assembly; 3. Support component; 31. Positioning notch; 4. Reinforcing structure; 41. Reinforcing component; 5. Mounting plate; 51. Positioning shoulder; 6. Support rod; 7. Detachable structure. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0032] Example 1

[0033] like Figures 1-4 As shown, a vibrator includes two fixed plates 1 arranged correspondingly and a vibrating assembly 2 connected to the two fixed plates 1 respectively. A plurality of support members 3 are arranged between the tops of the two fixed plates 1, and a reinforcing structure 4 is arranged between at least two adjacent support members 3.

[0034] Several support members 3 are provided between the tops of the two fixed plates 1. A reinforcing structure 4 is provided between at least two adjacent support members 3. Traditional vibrators only have two fixed plates 1 and a vibration assembly 2 connected to the fixed plates 1. In the process of violent vibration, due to the lack of support for the two fixed plates 1, the vibration shaft and hollow shaft in the vibration assembly 2 are very prone to breakage, which will affect the stable operation of the vibrator. Compared with the traditional vibrator, this new type improves the stability of the vibrator operation process and prevents the technical problem of breakage of the hollow shaft and vibration shaft in the vibration assembly 2.

[0035] Example 2

[0036] like Figures 1-2 As shown, the reinforcing structure 4 includes reinforcing members 41 connected to two adjacent support members 3 respectively, which improves the stability of the vibrator during operation and prevents the hollow shaft and vibration shaft in the excitation assembly 2 from breaking when the vibrator is violently vibrating.

[0037] By connecting two reinforcing members 41 between two adjacent support members 3, the two reinforcing members 41 form an included angle or are parallel to each other. The included angle can be an acute angle, a right angle, or an obtuse angle, all of which can achieve the purpose of stabilizing the operation of the vibrator.

[0038] There are three support members 3, which are spaced apart on the same plane. Two of the three support members 3 are symmetrically distributed with the support member 3 in the middle position, and the reinforcing members 41 connected to the two adjacent support members 3 are symmetrically distributed with the reinforcing members 41 in the middle position, which further improves the stability of the vibrator operation.

[0039] like Figures 3-4 As shown, each of the opposing inner surfaces of the fixed plate 1 is connected to a mounting plate 5 by a detachable structure 7. One end of the support member 3 is fixed to one of the mounting plates 5, and the other end of the support member 3 is fixed to another mounting plate 5, which facilitates the disassembly and installation of the support member 3 and the fixed plate 1.

[0040] A positioning shoulder 51 is folded inward on the upper side of the mounting plate 5, and a positioning notch 31 is provided on the top side of the corresponding end of the support member 3. The positioning shoulder 51 is inserted into the positioning notch 31, and the mounting plate 5 and the support member 3 are welded together, so that the support member 3 can be easily installed and welded onto the mounting plate 5.

[0041] like Figure 1 As shown, the detachable structure 7 includes a plurality of one-to-one threaded holes on the mounting plate 5 and the fixing plate 1, and bolts are provided on the threaded holes. The mounting plate 5 and the fixing plate 1 are fixedly connected by bolts, which facilitates the disassembly and installation of the mounting plate 5 and the fixing plate 1.

[0042] Support component 3 can be any one of "H"-shaped steel, "I"-shaped steel, "T"-shaped steel, channel steel, angle steel, or square tube steel, all of which can achieve good support effect;

[0043] At least one bottom support rod 6 is connected between the bottoms of the two fixed plates 1 to further improve the support and prevent the hollow shaft and vibration shaft in the excitation assembly 2 from breaking.

[0044] Example 3

[0045] Based on Embodiment 1 or Embodiment 2, this embodiment further discloses a screening machine, which includes a vibrator.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibrator, comprising two correspondingly arranged fixed plates (1) and a vibration assembly (2) respectively connected to the two fixed plates (1), characterized in that, A plurality of support members (3) are provided between the tops of the two fixed plates (1), and a reinforcing structure (4) is provided between at least two adjacent support members (3).

2. The exciter according to claim 1, characterized in that, The reinforcing structure (4) includes reinforcing members (41) that are respectively connected to two adjacent support members (3).

3. The exciter according to claim 2, characterized in that, Two reinforcing members (41) are connected between two adjacent supporting members (3), and the two reinforcing members (41) form an angle or are parallel to each other.

4. The exciter according to claim 2, characterized in that, There are three support members (3) and they are spaced apart on the same plane. Two of the three support members (3) are symmetrically distributed with respect to the support member (3) in the central position. The reinforcing members (41) connected to the two adjacent support members (3) are symmetrically distributed with respect to the reinforcing members (41) in the central position.

5. The exciter according to claim 1, characterized in that, Each of the fixed plates (1) has an inner surface facing each other connected to a mounting plate (5) via a detachable structure (7). One end of the support member (3) is fixed to one of the mounting plates (5), and the other end of the support member (3) is fixed to the other mounting plate (5).

6. The exciter according to claim 5, characterized in that, A positioning shoulder (51) is folded inward on the upper side of the mounting plate (5), and a positioning notch (31) is provided on the top side of the corresponding end of the support member (3). The positioning shoulder (51) is inserted into the positioning notch (31), and the mounting plate (5) and the support member (3) are welded together.

7. The exciter according to claim 5, characterized in that, The detachable structure (7) includes a plurality of one-to-one threaded holes on the mounting plate (5) and the fixing plate (1), and bolts are provided on the threaded holes. The mounting plate (5) and the fixing plate (1) are fixedly connected by bolts.

8. The exciter according to claim 1, characterized in that, The support member (3) is any one of "H" type steel, "I" type steel, "T" type steel, channel steel, angle steel, and square tube steel.

9. The exciter according to claim 1, characterized in that, At least one bottom support rod (6) is connected between the bottoms of the two fixed plates (1).

10. A screening machine, characterized in that, The screening machine includes a vibrator as described in any one of claims 1-9.

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