Hydraulic screen changer

Abstract

The utility model relates to a hydraulic screen changer which comprises a fixed base, connecting rods used for being connected with a telescopic air cylinder are arranged on the two sides of the fixed base, a mounting plate is arranged at the end of each connecting rod, the telescopic air cylinder is arranged on the mounting plate in a penetrating mode, a connecting block used for installing a filter screen is installed at one end of each telescopic air cylinder, and an embedded groove used for installing the filter screen in an embedded mode is formed in each connecting block. The filter screen comprises a filter screen body and a mounting ring arranged around the filter screen body, the mounting ring abuts against the embedded groove to enable a gap to be reserved between the filter screen body and the embedded groove, the embedded groove and the filter screen body are both arc-shaped, a plurality of meshes are formed in the filter screen body, the length of the meshes is gradually shortened from the center of the filter screen body to the outside, and the embedded groove and the filter screen body are both arc-shaped. Due to the design that the lengths of the meshes are gradually shortened from the center of the filter screen body to the outside, optimization of fluid dynamic performance is facilitated, the blocking risk is reduced, and the service life of the filter screen is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hydraulic screen changer, specifically relates to a kind of hydraulic screen changer. BACKGROUND

[0002] Hydraulic screen changer is a kind of key equipment in industrial filtration system, it is driven by hydraulic system, realizes the automatic replacement of filter screen, this design not only improves filtration efficiency, significantly reduces the demand of manual operation, thereby reducing downtime and maintenance cost.Hydraulic screen changer is usually composed of a solid frame, hydraulic cylinder, filter screen assembly and control system.In the working process, hydraulic cylinder pushes old filter screen to move out, while accurately positioning and fixing new filter screen, ensure the continuity and stability of filtration process, this automatic screen changing mode is particularly suitable for the application scenarios that need to replace filter screen frequently, such as chemical industry, food processing and pharmaceutical industry, the application of hydraulic screen changer not only improves production efficiency, but also improves working environment, is an indispensable part of modern industrial filtration system.

[0003] The utility model discloses a simple hydraulic screen changer, including fixed block, the fixed block top surface vertical installation has support rod, the support rod top is provided with top plate, the top plate top surface is provided with hydraulic cylinder, the hydraulic cylinder output penetrates top plate and is provided with connecting block, the connecting block surface is provided with filter screen, the support rod surface is provided with first limit cylinder and second limit cylinder through connecting rod, the first limit cylinder and second limit cylinder inner portion are inserted with first cleaning tray and second cleaning tray respectively, the first cleaning tray surface is provided with cleaning brush, the second cleaning tray surface is provided with steel wire needle, and it is convenient to clean the filter screen, guarantees the normal use of filter screen, but the technology does not have sealing structure between installation base and connecting block, and filter screen is set as plane, which will cause the flow rate of filter screen center to be greater than that of filter screen two sides, causing the accumulation and blockage of impurities on filter screen two sides, so the technology still has certain improvement space. SUMMARY

[0004] The utility model provides a hydraulic screen changer to solve the technical problem of the prior art.

[0005] To achieve the above object, the utility model provides the following technical scheme, a kind of hydraulic screen changer, including fixed base, the fixed base both sides are equipped with the connecting rod for telescopic cylinder connection, the connecting rod end is equipped with mounting plate, the telescopic cylinder is equipped in mounting plate, the telescopic cylinder one end is equipped with the connecting block for filter screen installation, it is characterized by: the connecting block is equipped with the inlay slot for filter screen inlay installation, the filter screen includes filter screen body and the installation ring being set around filter screen body, the installation ring is abutted with inlay slot to make filter screen body and inlay slot between gap, the inlay slot, filter screen body are arc, the filter screen body is equipped with several mesh, the mesh length gradually shortens outside with filter screen body center.

[0006] The above technical scheme is adopted, the connecting block is equipped with the inlay slot for filter screen inlay installation, the filter screen includes filter screen body and installation ring, the installation ring is abutted with inlay slot to make filter screen body and inlay slot between gap, ensure the stability and reliability of filter screen in installation process, it is convenient to replace and maintain quickly, the inlay slot and filter screen body are arc, improve filtering efficiency and filtering effect, the design that mesh length gradually shortens outside with filter screen body center, help to optimize fluid dynamics performance, reduce the risk of blockage, prolong the service life of filter screen.

[0007] The above-mentioned hydraulic screen changer can be further provided as: the fixed base is equipped with the connecting hole for the sliding connection of the connecting block along the direction of the connecting rod, the fixed base is equipped with a first mounting cavity at the upper end of the connecting hole, the first mounting cavity is equipped with a first sealing gasket, the lower end of the connecting block is equipped with a second mounting cavity for installing a second sealing gasket, the first limiting groove is equipped at the bottom of the second mounting cavity in the connecting block, the first limiting block is equipped in the first limiting groove, the first limiting block is equipped with a first stop block at the bottom, the first limiting block and the first stop block are fixedly connected, and the first stop block is fixedly connected with one side of the fixed base.

[0008] The above technical scheme is adopted, by being equipped with the connecting hole consistent with the direction of the connecting rod on the fixed base, the stable sliding of the connecting block is realized, the quick screen changing operation is facilitated, the first sealing gasket in the first mounting cavity and the second sealing gasket in the second mounting cavity constitute double sealing protection, effectively prevent the oil leakage in the hydraulic system, improve the reliability and safety of the equipment, the first limiting groove, the first limiting block and the first stop block in the connecting block ensure the accurate positioning of the first stop block during installation, and also enhance the overall stability of the structure.

[0009] The hydraulic screen changer can be further provided with: the fixed base is provided with a second limiting groove at the other end of the first block, a connecting piece connected with the equipment is installed on the second limiting groove, a fixing ring is arranged at one end of the connecting piece, the fixing ring is partially arranged in the second limiting groove, a second block is sleeved on the connecting piece, a third limiting groove is arranged on one side of the second block, and the other part of the fixing ring is arranged in the third limiting groove to facilitate the fixed connection between the second block and the fixed base away from the first block.

[0010] By adopting the technical scheme, the second limiting groove is arranged at the end of the fixed base away from the first block, and the connecting piece connected with the equipment is installed on the second limiting groove, so that the stable connection between the equipment and the screen changer is realized. The fixing ring on the connecting piece is partially arranged in the second limiting groove, and the second block is sleeved on the connecting piece. The other part of the fixing ring is matched with the fourth limiting groove on the second block, so that a double-limiting structure is formed. The stability of the connecting piece under stress is ensured, and the loosening or falling of the connecting piece in the long-term use process is effectively prevented, so that the overall reliability and durability of the hydraulic screen changer are greatly improved.

[0011] The hydraulic screen changer can be further provided with: a fourth fluorine sealing pad is arranged between the second sealing pad and the first limiting block.

[0012] By adopting the technical scheme, the fourth fluorine sealing pad is arranged between the second sealing pad and the first limiting block. The sealing system efficiency is improved by this innovative measure. The fourth fluorine sealing pad has excellent corrosion resistance, high sealing performance and good self-lubricating performance. The small gap between the second sealing pad and the first limiting block is effectively filled, the leakage of hydraulic oil is further blocked, and the cleanliness and operating efficiency of the hydraulic system are ensured.

[0013] The hydraulic screen changer can be further provided with: the cylinder comprises a cylinder body arranged at the end of the mounting plate away from the connecting rod and a telescopic rod penetrating the mounting plate, the connecting block is provided with a clamping groove at the end of the telescopic cylinder, and the telescopic cylinder is provided with a fourth clamping block at the end of the connecting block, the fourth clamping block is arranged in the clamping groove to enable the telescopic rod to control the axial movement of the connecting block.

[0014] By adopting the technical scheme, the cylinder is composed of the cylinder body arranged at the end of the mounting plate away from the connecting rod and the telescopic rod penetrating the connecting block, so that the cylinder can directly act on the connecting block to realize the precise movement of the axial movement of the connecting block. The clamping groove arranged on the connecting block is matched with the fourth clamping block at one end of the telescopic rod, so that the stable connection between the cylinder and the connecting block is ensured. The position of the connecting block is controlled through the telescopic action of the telescopic rod.

[0015] The hydraulic screen changer can be further provided with second limiting blocks at two ends of the connecting block, the telescopic rod is arranged in the second limiting blocks to enable the fourth clamping block to be clamped with the clamping groove, and abutting grooves are arranged at two sides of the fixed base on the second limiting blocks, and the second limiting blocks and the abutting grooves abut to limit the axial movement distance of the connecting block.

[0016] By arranging the second limiting blocks at two ends of the connecting block and arranging the telescopic rod in the limiting blocks, the fourth clamping block is stably clamped with the clamping groove, the accurate control of the axial movement of the connecting block by the cylinder is realized, the abutting grooves arranged on the fixed base abut with the second limiting blocks, the movement range of the connecting block is limited, and the structural damage or operation error caused by excessive movement is prevented.

[0017] The embedded groove and the filter screen body are both arc-shaped, the filtering efficiency and filtering effect are improved, the design that the mesh length gradually shortens outward from the center of the filter screen body helps to optimize the fluid dynamics performance, reduces the risk of blockage, and prolongs the service life of the filter screen. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model discloses a structure schematic drawing;

[0019] Figure 2 The utility model discloses a sectional view;

[0020] Figure 3 The utility model discloses an explosion view;

[0021] Figure 4 The utility model discloses a telescopic cylinder structure diagram;

[0022] Label comment: 1-fixed base, 2-connecting rod, 3-connecting block, 4-mounting plate, 5-telescopic cylinder, 6-filter screen, 7-mesh, 8-connecting hole, 9-first mounting cavity, 10-first sealing gasket, 11-second mounting cavity, 12-second sealing gasket, 13-first limiting slot, 14-first limiting block, 15-first stop block, 16-second limiting slot, 17-connecting piece, 18-fixing ring, 19-second stop block, 20-third limiting slot, 21-tetrafluoroethylene sealing gasket, 22-clamping groove, 23-fourth clamping block, 24-second limiting block, 25-abutting groove, 301-embedded groove, 501-cylinder body, 502-telescopic rod, 601-filter screen body, 602-mounting ring. DETAILED DESCRIPTION

[0023] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. A person skilled in the art can make a modification without creative contribution to the embodiment according to a need after reading the specification, but as long as the modification is within the scope of the claims of the utility model, the utility model is protected by the patent law.

[0024] As Figures 1-3The utility model provides a hydraulic screen changer which has the following technical scheme. A fixed base 1 is provided with a connecting rod 2 on both sides for connecting a telescopic cylinder 5. The end of the connecting rod 2 is provided with a mounting plate 4. The telescopic cylinder 5 is arranged in the mounting plate 4. One end of the telescopic cylinder 5 is provided with a connecting block 3 for mounting a filter screen 6. The connecting block 3 is provided with an embedded groove 301 for embedding the filter screen 6. The filter screen 6 comprises a filter screen body 601 and a mounting ring 602 arranged around the filter screen body 601. The mounting ring 602 abuts against the embedded groove 301 to leave a gap between the filter screen body 601 and the embedded groove 301. The embedded groove 301 and the filter screen body 601 are both arc-shaped. The filter screen body 601 is provided with a plurality of mesh holes 7. The length of the mesh holes 7 gradually decreases from the center of the filter screen body 601 to the outside. The connecting block 3 is provided with the embedded groove 301 for embedding the filter screen 6. The filter screen 6 comprises the filter screen body 601 and the mounting ring 602. The mounting ring 602 abuts against the embedded groove 301 to leave a gap between the filter screen body 601 and the embedded groove 301, thereby ensuring the stability and reliability of the filter screen 6 during installation and facilitating quick replacement and maintenance. The embedded groove 301 and the filter screen body 601 are both arc-shaped, thereby improving the filtering efficiency and filtering effect. The design that the length of the mesh holes 7 gradually decreases from the center of the filter screen body 601 to the outside helps to optimize the fluid dynamics performance, reduce the risk of blockage, and prolong the service life of the filter screen 6. The fixed base 1 is provided with a connecting hole 8 along the direction of the connecting rod 2 for slidingly connecting the connecting block 3. The fixed base 1 is provided with a first mounting cavity 9 at the upper end of the connecting hole 8. The first mounting cavity 9 is provided with a first sealing gasket 10. The lower end of the connecting block 3 is provided with a second mounting cavity 11 for mounting a second sealing gasket 12. The first limiting groove 13 is arranged in the connecting block 3 at the bottom of the second mounting cavity 11. The first limiting groove 13 is provided with a first limiting block 14. The bottom of the first limiting block 14 is provided with a first stop block 15. The first limiting block 14 is fixedly connected with the first stop block 15. The first stop block 15 is fixedly connected with one side of the fixed base 1. The connecting hole 8 is arranged in the fixed base 1 in the same direction as the connecting rod 2 to realize the stable sliding of the connecting block 3 and facilitate quick screen replacement. The first sealing gasket 10 in the first mounting cavity 9 and the second sealing gasket 12 in the second mounting cavity 11 constitute double sealing protection to effectively prevent oil leakage in the hydraulic system and improve the reliability and safety of the equipment. The first limiting groove 13, the first limiting block 14, and the first stop block 15 in the connecting block 3 ensure the accurate positioning of the first stop block 15 during installation and enhance the overall stability of the structure. The fixed base 1 is provided with a second limiting groove 16 at the other end of the first stop block 15. The second limiting groove 16 is provided with a connecting piece 17 connected with the equipment. One end of the connecting piece 17 is provided with a fixing ring 18. Part of the fixing ring 18 is arranged in the second limiting groove 16. The connecting piece 17 is provided with a second stop block 19. One side of the second stop block 19 is provided with a third limiting groove 20.The other part of the fixing ring 18 is arranged in the third limiting groove 20 to facilitate the fixed connection of the second block away from the first block 15 at one end of the fixed base 1, and the second limiting groove 16 is arranged at the end of the fixed base 1 away from the first block 15, and the connecting piece 17 connected with the equipment is arranged in the second limiting groove 16, so that the stable connection of the equipment and the screen changer is realized. The part of the fixing ring 18 on the connecting piece 17 is arranged in the second limiting groove 16, and the second block 19 is sleeved and arranged, and the third limiting groove 20 on the second block 19 is matched with the other part of the fixing ring 18, so that the double limiting structure is formed, which not only ensures the stability of the connecting piece 17 under stress, but also effectively prevents the loosening or falling of the connecting piece 17 in the long-term use process, thereby greatly improving the overall reliability and durability of the hydraulic screen changer. The second sealing gasket 12 and the first limiting block 14 are provided with the Teflon sealing gasket 21, and the Teflon sealing gasket 21 is additionally arranged between the second sealing gasket 12 and the first limiting block 14. The innovative measure significantly improves the efficiency of the sealing system. The Teflon sealing gasket 21 has excellent corrosion resistance, high sealing performance and good self-lubricating property, effectively fills the small gap between the second sealing gasket 12 and the first limiting block 14, further blocks the leakage of hydraulic oil, and ensures the cleanliness and operating efficiency of the hydraulic system.

[0025] As Figures 1-4 The utility model provides the following technical scheme, a kind of hydraulic screen changer, cylinder includes the cylinder body 501 being arranged at the end of mounting plate 4 away from connecting rod 2 and the telescopic rod 502 being arranged in mounting plate 4, connecting block 3 is provided with clamping groove 22 towards telescopic cylinder 5 one end, telescopic cylinder 5 is provided with the fourth clamping block 23 towards connecting block 3 one end, fourth clamping block 23 is arranged in clamping groove 22 to facilitate the telescopic rod 502 control connecting block 3 axial movement, cylinder is by the cylinder body 501 being arranged at the end of mounting plate 4 away from connecting rod 2 and the telescopic rod 502 being arranged in connecting block 3, so that cylinder can be directly acted on connecting block 3, realize the accurate movement of its axial movement, the clamping groove 22 being opened in connecting block 3 is matched with the fourth clamping block 23 of telescopic rod 502 one end, it is guaranteed that the stable connection between cylinder and connecting block 3, also by the telescopic action of telescopic rod 502, the position control of connecting block 3 is realized, connecting block 3 is provided with second limiting block 24 at both ends, and telescopic rod 502 is arranged in second limiting block 24 to facilitate the clamping of fourth clamping block 23 and clamping groove 22, and abutting groove 25 is arranged at the two sides of second limiting block 24 of fixed base 1, and second limiting block 24 and abutting groove 25 abut to limit the axial movement distance of connecting block 3, by being provided with second limiting block 24 at both ends of connecting block 3, and making telescopic rod 502 be arranged in these limiting blocks, to facilitate the stable clamping between fourth clamping block 23 and clamping groove 22, so that the accurate control of the axial movement of cylinder to connecting block 3 is realized, and the abutting groove 25 being opened in fixed base 1 is matched with second limiting block 24, to provide the explicit limit for the movement range of connecting block 3, prevent the structural damage or operation error possibly caused by excessive movement.

[0026] The utility model discloses the beneficial effect has: the embedded groove 301 and filter screen body 601 are arc, improved the filtering efficiency and filter effect, the design that mesh 7 length gradually shortens with filter screen body 601 center outward, help optimize the fluid dynamics performance, reduce the risk of jam, prolong the service life of filter screen 6.

Claims

1. A hydraulic screen changer comprising a fixed base, both sides of which are provided with connecting rods for connecting retractable air cylinders, the end of the connecting rods is provided with a mounting plate, the retractable air cylinder is arranged in the mounting plate, one end of the retractable air cylinder is provided with a connecting block for mounting a filter screen, characterized in that: The connecting block is provided with an embedded groove for embedding the filter screen, the filter screen comprises a filter screen body and a mounting ring arranged around the filter screen body, the mounting ring abuts against the embedded groove to leave a gap between the filter screen body and the embedded groove, the embedded groove and the filter screen body are arc-shaped, the filter screen body is provided with a plurality of mesh holes, and the length of the mesh hole gradually decreases from the center of the filter screen body to the outside.

2. A hydraulic screen changer according to claim 1, characterized in that: The fixed base is provided with a connecting hole for sliding connection of the connecting block along the connecting rod, the fixed base is provided with a first mounting cavity at the upper end of the connecting hole, the first mounting cavity is provided with a first sealing gasket, the lower end of the connecting block is provided with a second mounting cavity for mounting a second sealing gasket, the first limiting groove is arranged at the bottom of the second mounting cavity in the connecting block, the first limiting block is arranged in the first limiting groove, the first limiting block is provided with a first stop block at the bottom, the first limiting block and the first stop block are fixedly connected, and the first stop block is fixedly connected with one side of the fixed base.

3. A hydraulic screen changer according to claim 2, characterized in that: The fixed base is provided with a second limiting groove at the other end of the first stop block, the second limiting groove is provided with a connecting piece connected with the equipment, one end of the connecting piece is provided with a fixing ring, part of the fixing ring is arranged in the second limiting groove, the connecting piece is provided with a second stop block, one side of the second stop block is provided with a third limiting groove, and the other part of the fixing ring is arranged in the third limiting groove to fix the second stop block and the fixed base away from the first stop block.

4. A hydraulic screen changer according to claim 2, characterized in that: A Teflon sealing gasket is arranged between the second sealing gasket and the first limiting block.

5. A hydraulic screen changer according to any one of claims 1-4, characterized in that: The cylinder comprises a cylinder body arranged at the end of the mounting plate away from the connecting rod and a telescopic rod penetrating the mounting plate, the connecting block is provided with a clamping groove at the end of the telescopic cylinder, the telescopic cylinder is provided with a fourth clamping block at the end of the connecting block, the fourth clamping block is arranged in the clamping groove to enable the telescopic rod to control the axial movement of the connecting block.

6. A hydraulic screen changer according to claim 5, characterized in that: The connecting block is provided with a second limiting block at both ends, the telescopic rod penetrates the second limiting block to enable the fourth clamping block to be clamped with the clamping groove, and the fixed base is provided with an abutting groove at both sides of the second limiting block, the second limiting block and the abutting groove abut to limit the axial movement distance of the connecting block.

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