Hydraulic device for screen changer of granulator

Abstract

The utility model discloses a hydraulic device for a screen changer of a granulator, relates to the technical field of screen changers, solves the problems of low filtering efficiency and poor use effect of the existing device, and adopts the following scheme that a fixed sleeve is fixedly arranged in a screen changer box. Through the arrangement of the fixing sleeve, the screen exchanger bodies and the connecting pipes, the two sets of connecting pipes communicate with the two sets of screen exchanger bodies correspondingly, materials can be divided into two sets, then the materials are filtered at the same time, the filtering effect is improved, and therefore the mechanical production efficiency is improved; when the filter screen needs to be replaced, one group of hydraulic cylinders drive the hydraulic rods to push the screen changer body to move, so that the filter screen is replaced, one group of connecting pipes is blocked during replacement, and the other group of connecting pipes and the screen changer body continue to filter materials, so that the non-stop work of the device is ensured, and the replacement efficiency is improved. The use effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screen changers, in particular to a hydraulic device for a screen changer of a granulator. Background Art

[0002] Hydraulic automatic screen changer relies on a complex hydraulic station to switch the screen changing plate or screen changing column back and forth. Hydraulic automatic screen changer has the advantages of compact size, good back pressure sealing, and fast screen changing speed. When the existing screen changer changes the screen, it is necessary to stop the machine before changing the screen, which has low screen changing efficiency and low production efficiency.

[0003] After searching, the application with patent publication number CN217257513 discloses a non-stop screen changing device for a granulator, including a fixed frame, the fixed frame is provided with a material flow hole which is set up through, the fixed frame is provided with a filter screen plug-in cavity which is distributed in a direction perpendicular to the axis of the material flow hole and is set up through, the filter screen plug-in cavity is provided with a filter screen plate, the filter screen plate is provided with at least two groups of filter screens evenly distributed along the axis of the filter screen plate, and the filter screen plug-in cavity is provided with a sealing component which is intermittently linked with the filter screen, so as to improve the use efficiency of the granulator.

[0004] However, due to the setting of the filter plate and the material flow holes, a group of material flow holes can only filter the material in a single channel, and the filtration efficiency is low, which affects the production efficiency of the machine. At the same time, when the filter is replaced, the drive assembly drives the filter plate to rise. During the rising process, the material flow holes will be blocked for a period of time, resulting in low filtration efficiency and poor use effect during this period.

[0005] Therefore, we proposed a hydraulic device for the screen changer of the granulator. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a hydraulic device for a screen changer of a particle size adjustment machine, which solves the problems of low filtering efficiency and poor use effect of the prior device.

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a hydraulic device for a screen changer of a granulator comprises a screen changer box, wherein the front side and the rear side of the screen changer box are respectively equipped with a feed pipe and a discharge pipe;

[0008] Two sets of oppositely positioned fixing sleeves are fixedly installed inside the screen changer box, a screen changer body penetrating the left side of the screen changer box is slidably connected inside the fixing sleeve, a through hole opposite to the position of the feed pipe is opened on the outer wall of the screen changer body, a filter screen with matching specifications is installed in the through hole, two sets of oppositely positioned connecting pipes are fixedly installed on the output end of the feed pipe and the input end of the discharge pipe, the connecting pipes are respectively connected to the two sets of fixing sleeves, and the connecting pipes are connected to the through hole;

[0009] Eight groups of connecting rods in opposite positions are fixedly installed on the right side of the screen changer box, a fixing plate is fixedly installed on the right end of the connecting rod, two groups of hydraulic cylinders in opposite positions are fixedly installed on the right side of the fixing plate, two groups of hydraulic rods respectively mounted on the output ends of the hydraulic cylinders are fixedly installed on the left side of the fixing plate, the left end of the hydraulic rod is connected to the screen changer body, and the outer wall of the screen changer body fits with the inner wall of the fixing sleeve.

[0010] Preferably, a fixing plate of matching specifications is fixedly installed in the through hole, and evenly distributed filter holes are opened on the front side of the fixing plate, so that the fixing plate can support the filter screen and improve the filtering effect.

[0011] Preferably, a placement groove is provided on the inner wall of the through hole and is located on the front side of the fixed disk. A filter screen is installed in the placement groove, which makes it easy to disassemble and install the filter screen.

[0012] Preferably, a sealing ring is fixedly installed at the connection between the connecting pipe and the fixing sleeve, so that the sealing performance of the connecting pipe can be improved.

[0013] Preferably, the telescopic length of the hydraulic rod is matched with the length of the screen changer body, so that the through hole can be exposed outside the screen changer box, thereby facilitating the replacement of the filter screen and improving the convenience of screen changing.

[0014] Preferably, the top surface of the screen changer box is equipped with a box cover, which makes it convenient to repair the components in the screen changer box.

[0015] 1. The hydraulic device of the screen changer of the granulator can divide the materials into two groups through the arrangement of the fixed sleeve, the screen changer body and the connecting pipe. The two groups of connecting pipes are respectively connected with the two groups of screen changer bodies, and then the materials are filtered at the same time, thereby improving the filtering effect and thus improving the efficiency of mechanical production.

[0016] 2. At the same time, through the setting of hydraulic cylinders, fixed sleeves and screen changer body, when the filter needs to be replaced, one set of hydraulic cylinders drives the hydraulic rod to push the screen changer body to move, so as to replace the filter. During the replacement, one set of connecting pipes is blocked, and the other set of connecting pipes and the screen changer body continue to filter the material, ensuring that the device works without stopping and improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the fixing sleeve of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the connecting pipe of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the screen changer of the utility model.

[0021] In the figure: 1. screen changer box; 2. feed pipe; 3. discharge pipe; 4. box cover; 5. fixing sleeve; 6. screen changer body; 7. through hole; 8. fixing plate; 9. filter hole; 10. placement groove; 11. connecting pipe; 12. sealing ring; 13. connecting rod; 14. fixing plate; 15. hydraulic cylinder; 16. hydraulic rod. DETAILED DESCRIPTION

[0022] 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.

[0023] Example 1: Figure 1-4 As shown: two groups of relatively positioned fixed sleeves 5 are fixedly installed inside the screen changer box 1, and a screen changer body 6 that runs through the left side of the screen changer box 1 is slidably connected inside the fixed sleeve 5. A through hole 7 that is relatively positioned to the feed pipe 2 is opened on the outer wall of the screen changer body 6, and a filter screen of matching specifications is installed in the through hole 7. Two groups of relatively positioned connecting pipes 11 are fixedly installed on the output end of the feed pipe 2 and the input end of the discharge pipe 3, respectively. The connecting pipes 11 are respectively connected to the two groups of fixed sleeves 5, and the connecting pipes 11 are connected to the through holes 7. Through the arrangement of the fixed sleeves 5, the screen changer body 6 and the connecting pipes 11, the two groups of connecting pipes 11 are respectively connected to the two groups of screen changer bodies 6, so that the materials can be divided into two groups, and then the materials can be filtered at the same time, thereby improving the filtering effect and thus improving the efficiency of mechanical production.

[0024] Example 2: Figure 2-4As shown: eight groups of connecting rods 13 in opposite positions are fixedly installed on the right side of the screen changer box 1, a fixing plate 14 is fixedly installed on the right end of the connecting rod 13, two groups of hydraulic cylinders 15 in opposite positions are fixedly installed on the right side of the fixing plate 14, and two groups of hydraulic rods 16 respectively sleeved on the output ends of the hydraulic cylinders 15 are fixedly installed on the left side of the fixing plate 14. The left end of the hydraulic rod 16 is connected to the screen changer body 6, and the outer wall of the screen changer body 6 is fitted with the inner wall of the fixing sleeve 5. Through the arrangement of the hydraulic cylinder 15, the fixing sleeve 5 and the screen changer body 6, when the filter needs to be replaced, one group of hydraulic cylinders 15 drives the hydraulic rod 16 to push the screen changer body 6 to move, thereby replacing the filter. During the replacement, one group of connecting pipes 11 is blocked, and the other group of connecting pipes 11 and the screen changer body 6 continue to filter the material, ensuring that the device works without stopping and improving the use effect of the device.

[0025] Example 3: Figure 2-3 As shown: a fixing plate 8 of matching specifications is fixedly installed in the through hole 7, and evenly distributed filtering holes 9 are opened on the front side of the fixing plate 8, so that the fixing plate 8 can support the filter screen and improve the filtering effect.

[0026] The working principle and use process of the utility model are as follows: when the device is needed to work, the two groups of connecting pipes 11 are respectively connected to the two groups of screen changer bodies 6, so that the materials can be divided into two groups, and then the materials are filtered at the same time to improve the filtering effect. When the filter needs to be replaced, one group of hydraulic cylinders 15 drives the hydraulic rod 16 to push the screen changer body 6 to move, so as to replace the filter. During the replacement, one group of connecting pipes 11 is blocked, and the other group of connecting pipes 11 and the screen changer body 6 continue to filter the materials, ensuring that the device works without stopping and improving the use effect of the device.

[0027] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hydraulic device for a screen changer of a granulator, comprising a screen changer box (1), wherein the front side and the rear side of the screen changer box (1) are respectively equipped with a feed pipe (2) and a discharge pipe (3); Features: Two sets of oppositely positioned fixed sleeves (5) are fixedly installed inside the screen changer box (1); a screen changer body (6) penetrating the left side of the screen changer box (1) is slidably connected inside the fixed sleeve (5); a through hole (7) opposite to the position of the feed pipe (2) is opened on the outer wall of the screen changer body (6); a filter screen of matching specifications is installed in the through hole (7); two sets of oppositely positioned connecting pipes (11) are fixedly installed on the output end of the feed pipe (2) and the input end of the discharge pipe (3), respectively; the connecting pipes (11) are respectively connected to the two sets of fixed sleeves (5), and the connecting pipes (11) are connected to the through hole (7); Eight groups of connecting rods (13) in opposite positions are fixedly installed on the right side of the screen changer box (1), a fixing plate (14) is fixedly installed on the right end of the connecting rod (13), two groups of hydraulic cylinders (15) in opposite positions are fixedly installed on the right side of the fixing plate (14), and two groups of hydraulic rods (16) respectively sleeved on the output ends of the hydraulic cylinders (15) are fixedly installed on the left side of the fixing plate (14), the left end of the hydraulic rod (16) is connected to the screen changer body (6), and the outer wall of the screen changer body (6) is in contact with the inner wall of the fixing sleeve (5).

2. The hydraulic device for screen changer of a granulator according to claim 1, characterized in that: A fixing plate (8) of matching specifications is fixedly installed in the through hole (7), and evenly distributed filtering holes (9) are formed on the front side of the fixing plate (8).

3. The hydraulic device for screen changer of a granulator according to claim 1, characterized in that: A placement groove (10) is provided on the inner wall of the through hole (7) and is located in front of the fixing plate (8). A filter screen is installed in the placement groove (10).

4. The hydraulic device for screen changer of a granulator according to claim 1, characterized in that: A sealing ring (12) is fixedly mounted at the connection between the connecting pipe (11) and the fixing sleeve (5).

5. The hydraulic device for screen changer of a granulator according to claim 1, characterized in that: The telescopic length of the hydraulic rod (16) is adapted to the length of the screen changer body (6).

6. The hydraulic device for screen changer of a granulator according to claim 1, characterized in that: The top surface of the screen changer box (1) is equipped with a box cover (4).

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