Screening machine screen support buffer mechanism and screening machine

Abstract

The application relates to a screening machine screen support and buffering mechanism and a screening machine. The screening machine screen support and buffering mechanism is installed on a screening machine and comprises a mounting seat, a helical spring buffering assembly and a leaf spring buffering assembly. The screening machine screen support and buffering mechanism and the screening machine are matched with the side plate of the screening machine and the desktop plate of the screening machine through the helical spring buffering assembly and the leaf spring buffering assembly, the structure is simple, the buffering effect is ideal, the impact resistance is strong, the service life is long, and the screening machine is easy to maintain.

Description

Technical Field

[0001] This application relates to the field of screening machine technology, and in particular to a screening machine screen support and buffer mechanism and a screening machine having the support and buffer mechanism. Background Technology

[0002] In the field of engineering screening machines, the support and buffer mechanism connecting the base and the screen has always been a challenge. It is necessary to ensure both good buffering effect and good service life of the spring under impact force. The applicant's earlier application, application number CN2015202664952, for a rotary buffer device for screening machines, uses a combination of U-shaped and Z-shaped elastic elements, which achieves a buffering effect. However, the U-shaped elastic component has poor impact resistance, cannot withstand reverse force, and is prone to failure and breakage. Utility Model Content

[0003] The purpose of this application is to provide a screening machine screen support buffer mechanism and screening machine with better buffering effect and longer service life.

[0004] To achieve the above objectives, this utility model provides a screen support and buffer mechanism for a screening machine, which is installed between the side plate and the table plate of the screening machine, and includes a mounting base, a helical spring buffer assembly, and a leaf spring buffer assembly. The helical spring buffer assembly includes a helical spring support base, a helical spring frame, and a helical spring. The helical spring support base is rotatably connected to the mounting base. The helical spring frame is a set, with the top ends of the two helical spring frames rotatably connected to the desktop plate of the screening machine via a transition plate. The bottom ends of the two helical spring frames pass through both ends of the helical spring support base. Helical springs are respectively sleeved on the outside of the helical spring frames, and the helical springs are located between the helical spring support base and the transition plate. When the desktop plate of the screening machine is subjected to pressure, the helical spring frame can move up and down, and the helical springs extend and retract to achieve buffering. The leaf spring buffer assembly includes a leaf spring and a leaf spring pressure plate. The bottom end of the leaf spring is fixed to the mounting base through the leaf spring pressure plate, and the top end of the leaf spring is rotatably connected to the desktop plate of the screening machine. When the desktop plate of the screening machine is subjected to pressure, the leaf spring can deform to achieve buffering.

[0005] To ensure the stability of the entire buffer mechanism, the mounting base is fixed to the side plate of the screening machine by a cover plate, and the mounting base is located on the inner side of the side plate of the screening machine, while the cover plate is located on the outer side of the side plate. Furthermore, lubricating pads are provided between the mounting base and the side plate of the screening machine, and between the cover plate and the side plate of the screening machine.

[0006] To facilitate the installation of the helical spring buffer assembly and the leaf spring buffer assembly, the mounting base has a horizontal extension, and the bottom ends of the helical spring buffer assembly and the leaf spring buffer assembly are both mounted on the extension.

[0007] To facilitate the rotation (or swing) of the helical spring support, a set of bearings is fixed to the top surface of the extension of the mounting base, and the helical spring support is rotatably connected to the bearings.

[0008] To limit the movement of the helical spring frame and prevent it from detaching from the mounting base, the bottom end of the helical spring frame passes through the extension of the mounting base and is fitted with a limiting bushing, which restricts the upward movement of the helical spring frame.

[0009] To further improve stability, the helical spring frame is fitted with multiple helical spring retainers, and each pair of adjacent helical spring retainers is equipped with a helical spring.

[0010] To further improve the buffering capacity of the leaf spring buffer assembly and facilitate relative rotation between the leaf spring and the desktop plate, the leaf spring has a set, with the top of the leaf spring bent to form a ring. A rubber bushing is installed on the rear side of the desktop plate of the screening machine, and the ring is fitted onto the rubber bushing, allowing the ring to rotate around the rubber bushing.

[0011] This utility model also provides a screening machine, wherein the above-mentioned screening machine screen support and buffer mechanism is installed between the side plate and the desktop plate of the screening machine.

[0012] In summary, this utility model has the following beneficial effects: the screen support buffer mechanism and the screen machine cooperate with the side plate and table plate of the screen machine through the helical spring buffer assembly and the leaf spring buffer assembly. The structure is simple, the buffering effect is ideal, the impact resistance is strong, the service life is long, and it is easy to maintain. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the screen support and buffer mechanism of the screening machine according to this utility model; Figure 2 This is an exploded view of the screen support and buffer mechanism of the screening machine of this utility model; Figure 3 This is a three-dimensional structural diagram of the screening machine of this utility model. Detailed Implementation

[0014] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0015] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "side", "end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] Example 1 like Figure 1 The screen support and buffer mechanism shown is installed between the side plate and the table plate of the screening machine. It includes a mounting base A, a helical spring buffer assembly B and a leaf spring buffer assembly C. The mounting base A is detachably connected to the side plate of the screening machine, and the helical spring buffer assembly B and the leaf spring buffer assembly C are detachably connected to the mounting base A.

[0017] Specifically, in combination Figure 2 As shown, the mounting base 1 is fixed to the side plate of the screening machine by the cover plate 15, and the mounting base 1 is located on the inner side of the side plate of the screening machine, while the cover plate 15 is located on the outer side of the side plate. Lubricating pads 14 are respectively provided between the mounting base 1 and the side plate of the screening machine, and between the cover plate 15 and the side plate of the screening machine. The mounting base 1 has an extension in the horizontal direction, and the bottom ends of the helical spring buffer assembly and the leaf spring buffer assembly are both installed on the extension. Specifically, the helical spring buffer assembly includes a helical spring support 3, a helical spring frame 4, and a helical spring 5. A set of bearing seats 2 is fixed to the top surface of the extension of the mounting base 1. The helical spring support 3 is rotatably connected to the two bearing seats 2. The bearing seats 2 are located at the center of both sides of the helical spring support 3, allowing the helical spring support 3 to swing around the bearing seats 2. The helical spring frame 4 is a set, and is a cylindrical structure. The tops of the two helical spring frames 4 are rotatably connected to the desktop of the screening machine via a transition plate. The transition plate is connected to the desktop of the screening machine via a shaft pin 8 and a locking plate 9, thereby allowing the helical spring frames 4 to rotate relative to the desktop of the screening machine. The bottom end of the spring frame 4 passes through both ends of the helical spring support 3 and also through the extension of the mounting base 1. The bottom end of the helical spring frame 4 is fitted with a limiting bushing 7, which is fixed to the helical spring frame 4 by screws. The top end of the limiting bushing 7 has a limiting ring, the diameter of which is larger than the diameter of the through hole on the extension. Therefore, the limiting bushing 7 is restricted at the bottom end of the extension, thereby limiting the vertical movement range of the helical spring frame 4. The helical spring frame 4 is fitted with three sections of helical spring retainers 6, and each adjacent helical spring retainer is fitted with a helical spring 5. The helical spring 5 is located between the helical spring support 3 and the adapter plate, and the helical spring 5 can achieve elastic expansion and contraction. Specifically, the leaf spring buffer assembly includes a leaf spring 10 and a leaf spring pressure plate 11. The leaf spring 10 has a set, and the top of the leaf spring 10 is bent to form a ring. A rubber bushing 11 is installed on the rear side of the screen table. The ring is sleeved on the rubber bushing 11 and can rotate around the rubber bushing 11 to realize the relative rotation between the leaf spring 10 and the screen table. The bottom end of the leaf spring 10 is fixed to the mounting base 1 through the leaf spring pressure plate 13. Buffer pads 12 are respectively provided between the leaf spring 10 and the leaf spring pressure plate 13 and between the leaf spring 10 and the mounting base 1. The leaf spring 10 can achieve elastic extension and contraction.

[0018] Example 2 like Figure 3 As shown, this utility model also provides a screening machine. The screening machine screen support and buffer mechanism 16 is installed between the side plate 17 and the desktop plate 18. When the desktop plate 18 is subjected to pressure, the spiral spring frames of the screening machine screen support and buffer mechanism 16 are subjected to force and decrease, and the spiral springs are contracted, thus achieving primary buffering. At the same time, the leaf springs 10 of the screening machine screen support and buffer mechanism 16 are subjected to force and bend, thus achieving secondary buffering.

[0019] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape, principle and application direction of this application should be covered within the scope of protection of this application.

Claims

1. A screen support and buffer mechanism for a screening machine, installed between the side plate and the tabletop of the screening machine, characterized in that: Includes mounting base, helical spring buffer assembly and leaf spring buffer assembly; The helical spring buffer assembly includes a helical spring support base, a helical spring frame, and a helical spring. The helical spring support base is rotatably connected to the mounting base. The helical spring frame is a set, with the top ends of the two helical spring frames rotatably connected to the desktop plate of the screening machine via a transition plate. The bottom ends of the two helical spring frames pass through both ends of the helical spring support base. Helical springs are respectively sleeved on the outside of the helical spring frames, and the helical springs are located between the helical spring support base and the transition plate. When the desktop plate of the screening machine is subjected to pressure, the helical spring frame can move up and down, and the helical springs extend and retract to achieve buffering. The leaf spring buffer assembly includes a leaf spring and a leaf spring pressure plate. The bottom end of the leaf spring is fixed to the mounting base through the leaf spring pressure plate, and the top end of the leaf spring is rotatably connected to the desktop plate of the screening machine. When the desktop plate of the screening machine is subjected to pressure, the leaf spring can deform to achieve buffering.

2. The screening machine screen support and buffer mechanism according to claim 1, characterized in that: The mounting base is fixed to the side plate of the screening machine by a cover plate, and the mounting base is located on the inner side of the side plate of the screening machine, while the cover plate is located on the outer side of the side plate.

3. The screening machine screen support and buffer mechanism according to claim 2, characterized in that: Lubricating pads are provided between the mounting base and the side plate of the screening machine, and between the cover plate and the side plate of the screening machine.

4. The screen support and buffer mechanism of the screening machine according to claim 1, characterized in that: The mounting base has a horizontal extension, and the bottom ends of the helical spring buffer assembly and the leaf spring buffer assembly are both mounted on the extension.

5. The screening machine screen support and buffer mechanism according to claim 4, characterized in that: A set of bearing seats is fixed to the top surface of the extension of the mounting base, and the helical spring support seat is rotatably connected to the bearing seats.

6. The screening machine screen support and buffer mechanism according to claim 4, characterized in that: The bottom end of the helical spring frame passes through the extension of the mounting base and is fitted with a limiting bushing, which restricts the upward movement of the helical spring frame.

7. The screening machine screen support and buffer mechanism according to claim 1, characterized in that: The helical spring frame is fitted with multiple helical spring retainers, and each pair of adjacent helical spring retainers is equipped with a helical spring.

8. The screen support and buffer mechanism of the screening machine according to claim 1, characterized in that: The leaf spring has a set, with the top of the leaf spring bent to form a ring. A rubber bushing is installed on the rear side of the desktop plate of the screening machine, and the ring is sleeved on the rubber bushing. The ring can rotate around the rubber bushing.

9. A screening machine, characterized in that: The screening machine is equipped with a screen support and buffer mechanism as described in any one of claims 1-8 between the side plate and the desktop plate.

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