A screen shaft sealing adjustment device for a screening machine

Abstract

This utility model discloses a screen shaft sealing adjustment device for a screening machine, belonging to the technical field of screening machine equipment. It includes a first sealing plate, a second sealing plate, and a mounting part. The first and second sealing plates are located between two adjacent sets of screen shafts and are perpendicular to the axis of the screen shafts. The mounting part is located above the screen shafts and fixed to the casing of the screening machine. The first and second sealing plates are perpendicular to and fixedly connected to the mounting part. An automatic compensation component is provided between the first and second sealing plates. This utility model achieves multiple sealing functions through the first sealing plate, the automatic compensation component, and the second sealing plate; simultaneously, the automatic compensation component can improve the sealing effect, avoid excessive wear, and reduce the frequency of manual replacement.

Description

Technical Field

[0001] This utility model belongs to the technical field of screening equipment, and in particular relates to a screening machine shaft sealing adjustment device. Background Technology

[0002] Chinese patent CN112170157B discloses a non-clogging screening machine. This invention patent is a prior application of the inventor. The solution includes: "a cage-type screen roller, with several cage-type screen rollers spliced ​​together to form a screen surface; the cage-type screen roller is mainly composed of a drive shaft, at least two end positioning flanges, and several movable screen bars. The drive shaft passes through the center of the end positioning flanges and is fixedly connected to the end positioning flanges. The movable screen bars are inserted between the end positioning flanges. The end positioning flanges are provided with several movable holes that cooperate with the movable screen bars. The diameter of the mating part of the movable screen bar and the movable hole is smaller than the aperture of the movable hole. During the overall rolling process of the cage-type screen roller, the movable screen bars also move within the movable holes, thereby causing the screen gaps between the movable screen bars to continuously change and form movable screen gaps."

[0003] The cage screen rollers are equipped with arc-shaped partition plates at both ends. The arc-shaped partition plates are located between two adjacent cage screen rollers and play a sealing role. The arc-shaped partition plates can prevent the material on the screen surface from entering the transmission components.

[0004] To ensure a tight seal, the gap between the arc-shaped partition plate and the cage screen roller needs to be small. However, in actual operation, factors such as vibration can cause the cage screen roller to rotate irregularly. This causes the cage screen roller to come into contact with the arc-shaped partition plate during rotation and cause wear. Over time, this wear will increase the gap between the arc-shaped partition plate and the cage screen roller, affecting the sealing effect.

[0005] Therefore, there is an urgent need for a screen shaft sealing adjustment device that can ensure sealing and improve wear resistance. Utility Model Content

[0006] The purpose of this utility model is to provide a screen shaft sealing adjustment device for a screening machine to solve the problems existing in the background art.

[0007] The objective of this utility model is achieved through the following technical solution: A screen shaft sealing adjustment device for a screening machine is located on both sides inside the screening machine and between two adjacent sets of screen shafts. It includes a first sealing plate, a second sealing plate, and a mounting part. The first and second sealing plates are located between the two adjacent sets of screen shafts and are perpendicular to the axis of the screen shafts. The mounting part is located above the screen shafts and is fixed to the casing of the screening machine. The first and second sealing plates are perpendicular to the mounting part and are fixedly connected. An automatic compensation component is provided between the first and second sealing plates.

[0008] Furthermore, the automatic compensation component includes a packing material and a spring, one end of the spring being connected to the mounting portion, the other end of the spring being connected to the packing material, and the end of the packing material away from the spring being in contact with the screen shaft.

[0009] As a preferred option, the filler is not limited to materials such as steel plate, polyethylene high-polymer wear-resistant plate, asbestos rope, wool felt, etc.

[0010] Furthermore, the first sealing plate and the second sieve plate are provided with arc-shaped edges on both sides for adapting to the sieve shaft.

[0011] Furthermore, the size of the second sealing plate is smaller than the size of the first sealing plate.

[0012] Furthermore, the mounting part includes a base plate, ribs, and a back plate. The first sealing plate and the second sealing plate are fixed to the bottom of the base plate. The back plate is fixed above the base plate and located on the side away from the first sealing plate. The back plate is provided with bolt holes. The ribs are located on both sides above the base plate and are respectively connected to the base plate and the back plate.

[0013] Furthermore, the base plate has a slot at the position corresponding to the automatic compensation component.

[0014] Furthermore, a partition plate is provided below the bottom plate. The partition plate is parallel to the axial direction of the screen shaft. The partition plate is perpendicular to and fixedly connected to the bottom plate and the second sealing plate. The partition plate is located on the center line between the second sealing plate and the bottom plate.

[0015] Furthermore, the base plate is provided with an observation port, which is located between the second sealing plate and the back plate.

[0016] Furthermore, an observation window is provided on the casing of the screening machine at the position corresponding to the mounting part.

[0017] The beneficial effects of this utility model are: The first sealing plate, the automatic compensation component, and the second sealing plate can provide multiple sealing functions.

[0018] The automatic compensation component can improve the sealing effect, prevent excessive wear, and reduce the frequency of manual replacement. Attached Figure Description

[0019] Figure 1 This is a perspective view of a screen shaft sealing adjustment device for a screening machine according to the present invention; Figure 2 This is a side view of a screen shaft sealing adjustment device for a screening machine according to the present invention; Figure 3This is a schematic diagram of the installation of a screen shaft sealing adjustment device for a screening machine according to the present invention; Figure 4 This is a cross-sectional view of a screen shaft sealing adjustment device for a screening machine according to the present invention; Figure 5 This is a schematic diagram showing the position of the screen shaft sealing adjustment device of the present invention in the screen machine; In the diagram, 1-screening machine, 2-screen shaft, 3-first sealing plate, 4-second sealing plate, 5-bottom plate, 51-groove, 52-observation port, 53-partition plate, 6-back plate, 61-bolt hole, 7-rib plate, 81-filling, 82-spring, 9-observation window. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] See Figures 1-5 This utility model provides a technical solution: like Figures 1-5 As shown, a screen shaft sealing adjustment device for a screening machine is located on both sides inside the screening machine 1 and between two adjacent sets of screen shafts 2. It includes a first sealing plate 3, a second sealing plate 4 and a mounting part. The mounting part is located above the screen shaft 2 and is fixed to the casing of the screening machine 1. The first sealing plate 3 and the second sealing plate 4 are perpendicular to the mounting part and fixedly connected. An automatic compensation component is provided between the first sealing plate 3 and the second sealing plate 4.

[0022] Through the above technical solution, the first sealing plate 3 and the second sealing plate 4 are located between two adjacent sets of screen shafts 2 and are perpendicular to the axis of the screen shaft 2. The first sealing plate 3 and the second screen plate are provided with arc-shaped edges on both sides for adapting to the screen shaft 2. The first sealing plate 3 is located on the outside and plays the role of the first layer of sealing.

[0023] An automatic compensation component is provided between the first sealing plate 3 and the second sealing plate 4. This component provides a second layer of sealing. Specifically, the automatic compensation component includes a packing material 81 and a spring 82. One end of the spring 82 is connected to the mounting part, and the other end is connected to the packing material 81. Under the elastic force of the spring 82, the packing material 81 contacts the screen shaft 2. When the first sealing plate 3 is worn, even if material passes through it, it will be blocked by the packing material 81. Even if the lower end of the packing material 81 is worn, the unworn part of the packing material 81 will still contact the screen shaft 2 under the action of the spring 82, thus increasing the service life of the packing material 81 and ensuring the sealing effect. The packing material 81 can be made of wool felt, asbestos foam, high-molecular-weight polyethylene board, etc. In one embodiment, when using wool felt, oil can be dripped onto the wool for lubrication. Simultaneously, the spring 82 can be eliminated, and the sealing can be achieved by periodically and manually pressing down the wool felt.

[0024] Furthermore, the size of the second sealing plate 4 is smaller than the size of the first sealing plate 3.

[0025] Through the above technical solution, the smaller size of the second sealing plate 4 can avoid wear of the screen shaft 2 on the second sealing plate 4. When the first sealing plate 3 is severely worn and the packing 81 is not replenished in time, the second sealing plate 4 can block larger particles of material and perform a certain degree of sealing.

[0026] Furthermore, the mounting part includes a base plate 5, ribs 7, and a back plate 6. The first sealing plate 3 and the second sealing plate 4 are fixed to the lower part of the base plate 5. The back plate 6 is fixed above the base plate 5 and located on the side away from the first sealing plate 3. The back plate 6 is provided with bolt holes 61, through which the back plate 6 is fixed to the housing. The ribs 7 are located on both sides above the base plate 5. The ribs 7 are connected to the base plate 5 and the back plate 6 respectively, and the ribs 7 play a supporting role.

[0027] The mounting part is used to fix the machine casing of the screening machine 1, and at the same time, it serves to support and connect the first sealing plate 3 and the second sealing plate 4.

[0028] A partition plate 53 is provided below the base plate 5. The partition plate 53 is parallel to the axis of the screen shaft 2. The partition plate 53 is perpendicular to the base plate 5 and the second sealing plate 4 and is fixedly connected. The partition plate 53 is located on the center line of the second sealing plate 4 and the base plate 5. The partition plate 53 is used to separate two adjacent screen shafts 2.

[0029] Furthermore, the base plate 5 is provided with a slot 51 corresponding to the position of the automatic compensation component, and the base plate 5 is provided with an observation port 52, which is located between the second sealing plate 4 and the back plate 6. The casing of the screening machine 1 is provided with an observation window 9 corresponding to the position of the mounting part.

[0030] Through the above technical solution, the observation window 9 and observation port 52 allow observation of whether any material has fallen behind the second sealing plate 4, and also allow observation of the wear condition of the first sealing plate 3. Simultaneously, the slot 51 allows for the replenishment and replacement of the filler 81, preventing excessive wear and improving the overall sealing effect.

[0031] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A screen mill shaft seal adjustment device characterized by:

1. Located on both sides inside the screening machine (1) and between two adjacent sets of screen shafts (2), including a first sealing plate (3), a second sealing plate (4) and a mounting part. The first sealing plate (3) and the second sealing plate (4) are located between two adjacent sets of screen shafts (2) and are perpendicular to the axis of the screen shafts (2). The mounting part is located above the screen shafts (2) and is fixed to the casing of the screening machine (1). The first sealing plate (3) and the second sealing plate (4) are perpendicular to the mounting part and are fixedly connected. An automatic compensation component is provided between the first sealing plate (3) and the second sealing plate (4).

2. The screen mill shaft seal adjustment device of claim 1, wherein: The automatic compensation component includes a packing (81) and a spring (82). One end of the spring (82) is connected to the mounting part, and the other end of the spring (82) is connected to the packing (81). The end of the packing (81) away from the spring (82) is in contact with the screen shaft (2).

3. The screen mill shaft seal adjustment device of claim 1, wherein: The first sealing plate (3) and the second sieve plate have arc-shaped edges on both sides for adapting to the sieve shaft (2).

4. The screen mill shaft seal adjustment device of claim 1, wherein: The size of the second sealing plate (4) is smaller than that of the first sealing plate (3).

5. The screen mill shaft seal adjustment device of claim 1, wherein: The mounting part includes a base plate (5), a rib plate (7) and a back plate (6). The first sealing plate (3) and the second sealing plate (4) are fixed to the bottom of the base plate (5). The back plate (6) is fixed above the base plate (5) and located on the side away from the first sealing plate (3). The back plate (6) is provided with bolt holes (61). The rib plate (7) is located on both sides above the base plate (5). The rib plate (7) is connected to the base plate (5) and the back plate (6) respectively.

6. The screen mill shaft seal adjustment device of claim 5, wherein: The base plate (5) has a slot (51) at the position corresponding to the automatic compensation component.

7. The screen mill shaft seal adjustment device of claim 5, wherein: A partition plate (53) is provided below the bottom plate (5). The partition plate (53) is parallel to the axis of the screen shaft (2). The partition plate (53) is perpendicular to the bottom plate (5) and the second sealing plate (4) and is fixedly connected. The partition plate (53) is located on the center line of the second sealing plate (4) and the bottom plate (5).

8. The screening machine screen shaft sealing adjustment device according to claim 5, characterized in that: The bottom plate (5) is provided with an observation port (52), which is located between the second sealing plate (4) and the back plate (6).

9. The screen mill shaft seal adjustment device of claim 1, wherein: An observation window (9) is provided on the casing of the screening machine (1) at the position corresponding to the mounting part.

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