Pressing assembly for fine filtration

Abstract

The utility model discloses a fine filtration pressing assembly, which is used for assembling a fine filtration disc and aims to solve the problem of disc damage or poor filtration effect caused by inaccurate pressurization and unstable pressure in the prior art. The assembly comprises a first support, a centering tool, a second support and a pressing assembly. The centering tool is movably installed on the first support and used for fixing the refined filtration disc mandrel and accurately positioning the refined filtration disc mandrel at the pressurization center. The second support is fixed to the first support, the pressing assembly comprises a hydraulic telescopic rod and a pressing disc, the fixed end of the hydraulic telescopic rod is connected with the second support, the free end of the hydraulic telescopic rod is connected with the pressing disc, and the pressing disc is located over the pressing position. And the hydraulic telescopic rod drives the pressure plate to uniformly pressurize the disc. Precise positioning of the mandrel is guaranteed through the centering tool, stable pressure is provided by the pressing assembly, damage to the disc is effectively avoided, the filtering effect is guaranteed, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a filtration device, and more particularly to a fine filter pressing assembly for disc mounting in a white oil filtration device. Background Technology

[0002] In the production of white oil, the molten material (a mixture of white oil and PE powder) needs to be filtered to remove impurities. A precision filter (or fine filter) is a commonly used filtration device, its core component being the fine filter discs. The fine filter discs and planetary carriers need to be alternately installed on the mandrel in sequence, and a certain pressure is applied during installation to ensure the seal between the discs and the filtration effect.

[0003] Currently, the commonly used disc mounting pressurization device is a self-made welded frame used in conjunction with a jack. This method has the following disadvantages: Poor stability: The welded frame is prone to deformation during pressurization, leading to unstable pressure. Difficulty in controlling the clamping position: Manual confirmation of the clamping position is prone to deviation, resulting in uneven force on the disc, or even deformation. Easy pressure release of the jack: The jack may release pressure during pressurization, affecting the pressurization effect. Utility Model Content

[0004] The purpose of this invention is to provide a fine filter pressing assembly for disc mounting in white oil filtration equipment, so as to solve the problems of poor stability, difficulty in controlling the pressing position, and easy pressure leakage in the prior art.

[0005] This utility model discloses a fine filter pressing assembly for assembling fine filter discs, comprising:

[0006] First support;

[0007] A centering fixture, movably mounted on the first bracket, can move between the mounting position and the clamping position, and is used to fix the spindle of the fine filter disc;

[0008] The second bracket is fixedly installed on the first bracket and is used to fix the clamping component.

[0009] The clamping assembly includes a hydraulic telescopic rod and a pressure plate. The fixed end of the hydraulic telescopic rod is connected to the second bracket, and the free end of the hydraulic telescopic rod is connected to the pressure plate. The pressure plate is located directly above the clamping position, and the hydraulic telescopic rod can drive the pressure plate to move toward or away from the clamping position.

[0010] Optionally, the centering fixture includes:

[0011] Base;

[0012] At least two clamping elements are arranged circumferentially on the base to clamp the mandrel;

[0013] The drive mechanism, linked to the clamping element, is used to drive the clamping element to move toward or away from the center of the base to clamp or release the mandrel.

[0014] Optionally, the clamping element has an arc-shaped clamping portion on the side facing the center of the base.

[0015] Optionally, the drive mechanism includes a handwheel structure.

[0016] Optionally, it also includes a drive unit for driving the centering fixture to move between the mounting position and the clamping position, the drive unit comprising:

[0017] Servo motor;

[0018] The lead screw is connected to the output shaft of the servo motor;

[0019] The lead screw nut is connected to the lead screw thread and to the centering fixture.

[0020] Optionally, it also includes:

[0021] The installation position proximity switch is set near the installation position to detect whether the centering fixture has reached the installation position;

[0022] A clamping position proximity switch is placed near the clamping position to detect whether the centering fixture has reached the clamping position.

[0023] Optionally, it also includes an infrared laser assist device, which includes:

[0024] Infrared laser;

[0025] A mounting bracket, positioned near the installation location, is used to secure the infrared laser, which provides a positional reference during planetary mounting.

[0026] Optionally, the hydraulic telescopic rod is the piston rod of a hydraulic cylinder, and the hydraulic cylinder is connected to a hydraulic power unit.

[0027] Optionally, the hydraulic station is equipped with a pressure sensor to monitor the pressure of the hydraulic cylinder.

[0028] Optionally, the second support is made of 150 square steel.

[0029] The beneficial effects of this utility model are:

[0030] This utility model discloses a fine filter pressing assembly that, through the arrangement of a first bracket, a centering fixture, a second bracket, and a pressing component, achieves the fixing and pressurization of the fine filter disc mandrel. The centering fixture accurately positions the mandrel at the center of the pressing position, and the pressing component applies uniform pressure to the disc via a hydraulic telescopic rod and a pressure plate, avoiding disc damage or reduced filtration efficiency caused by inaccurate pressing position or unstable pressure.

[0031] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0032] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0033] Figure 1 This is a first-view structural diagram of the fine filter pressing assembly of this utility model.

[0034] Figure 2 This is a second-view structural diagram of the fine filter pressing assembly of this utility model.

[0035] Explanation of reference numerals in the attached drawings: 1. Servo motor; 2. Hydraulic cylinder; 3. Hydraulic station; 4. Centering fixture; 401. Base; 402. Clamping component; 403. Arc-shaped clamping part; 404. Handwheel structure; 5. Mounting bracket; 6. Mounting position proximity switch; 7. Clamping position proximity switch; 8. First bracket; 9. Second bracket; 10. Slide rail; 11. Pressure plate; 12. Mandrel; 13. Disc. Detailed Implementation

[0036] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0037] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0038] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0039] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0041] like Figure 1 and Figure 2As shown, the fine filter pressing assembly of this utility model includes a first bracket 8, a centering fixture 4, a second bracket 9, a pressing component, a driving device, an installation position proximity switch 6, a pressing position proximity switch 7, and an infrared laser auxiliary device.

[0042] The first support 8 is the foundation of the entire device, used to support and install other components. The first support 8 is equipped with a slide rail 10.

[0043] The centering fixture 4 is used to fix the mandrel 12 (not shown in the figure) of the fine filter disc 13. The centering fixture 4 includes a base 401, at least two clamping members 402 (four in this embodiment), and a drive mechanism. The base 401 of the centering fixture 4 is slidably engaged with the slide rail 10 and can move between the installation position and the clamping position. The four clamping members 402 are slidably disposed on the base 401 in the circumferential direction for clamping the mandrel 12. The drive mechanism is linked with the clamping members 402 and is used to drive the clamping members 402 to move toward or away from the center of the base 401 to clamp or release the mandrel 12. The side of the clamping member 402 facing the center of the base 401 has an arc-shaped clamping part 403 for better fit to the mandrel 12. The drive mechanism can be a handwheel structure 404, and the movement of the clamping members 402 is controlled by rotating the handwheel.

[0044] The second bracket 9 is fixedly mounted on the first bracket 8 for fixing the clamping assembly. The clamping assembly includes a hydraulic telescopic rod (i.e., the piston rod of the hydraulic cylinder 2) and a pressure plate 11. The fixed end of the hydraulic telescopic rod is connected to the second bracket 9, and the free end is connected to the pressure plate 11. The pressure plate 11 has a clearance hole in its center to avoid the mandrel 12. The pressure plate 11 is located directly above the clamping position. The hydraulic telescopic rod can drive the pressure plate 11 to move toward or away from the clamping position, thereby applying pressure to the disc 13 on the mandrel 12. The hydraulic cylinder 2 is connected to a hydraulic station 3, which provides hydraulic power. The hydraulic station 3 is equipped with a pressure sensor to monitor the pressure of the hydraulic cylinder 2. The second bracket 9 is made of 150 square steel to ensure sufficient strength and rigidity.

[0045] The drive unit is used to move the centering fixture 4 between the mounting position and the clamping position. The drive unit includes a servo motor 1, a lead screw, and a lead screw nut. The output shaft of the servo motor 1 is connected to the lead screw, the lead screw nut is threadedly connected to the lead screw, and is connected to the centering fixture 4. The servo motor 1 can be a servo motor with a braking function to prevent accidental movement.

[0046] The installation position proximity switch 6 and the clamping position proximity switch 7 are respectively installed near the installation position and the clamping position to detect whether the centering fixture 4 has reached the corresponding position.

[0047] The infrared laser auxiliary device includes an infrared laser and a mounting bracket 5. The mounting bracket 5 is used to fix the infrared laser, which provides a positional reference during the installation of the planetary carrier, ensuring the consistency of the planetary carrier installation.

[0048] Working principle:

[0049] Place the disc 13 to be installed and the spindle 12 of the planetary carrier on the base 401 of the centering fixture 4, and the centering fixture 4 fixes the spindle 12 in the installation position.

[0050] Install disc 13 and planetary carrier in sequence, and use an infrared laser-assisted device to ensure the consistency of the planetary carrier installation position.

[0051] Start servo motor 1 and move centering fixture 4 to the clamping position.

[0052] Start the hydraulic station 3 and hydraulic cylinder 2, and the hydraulic telescopic rod will drive the pressure plate 11 to move downward, applying pressure to the disc 13.

[0053] After maintaining pressure for a period of time, release the pressure and then repressurize, repeating this cycle multiple times.

[0054] Install and tighten the screws.

[0055] Start the drive unit and move the centering fixture 4 back to the installation position.

[0056] Remove the assembled spindle 12 (including disc 13 and planetary carrier) from the mounting platform.

[0057] The fine filter pressing assembly of this utility model, by adopting the above-described structure and working principle, has the following advantages:

[0058] High stability: Pressure is provided by a hydraulic station and hydraulic cylinder, ensuring stable and reliable pressure and avoiding the problem of pressure leakage from the jack. The second support 9 is made of 150mm square steel, which is high-strength and not easily deformed.

[0059] Precise clamping position: The mandrel 12 is fixed in the center position by a centering fixture, which ensures the accuracy of the clamping position and avoids uneven force on the disc 13.

[0060] High degree of automation: The centering fixture is driven by a servo motor and a proximity switch is set up for position detection, which realizes automated control and reduces human operation error.

[0061] High installation accuracy: The use of an infrared laser-assisted device improves the accuracy and consistency of planetary carrier installation.

[0062] Easy to operate: The overall structure is reasonably designed and easy to operate, reducing labor intensity.

[0063] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A fine filter press assembly for assembling a fine filter disc, characterized in that, The application relates to a precision filter pressing assembly. The precision filter pressing assembly comprises: a first support; a centering tool movably mounted on the first support and movable between a mounting position and a pressing position, used for fixing a mandrel of the precision filter disc; a second support fixedly mounted on the first support and used for fixedly mounting a pressing assembly.

2. The fine filtration press assembly of claim 1, wherein, The pressing assembly comprises a hydraulic telescopic rod and a pressing plate, a fixed end of the hydraulic telescopic rod being connected to the second support, and a free end of the hydraulic telescopic rod being connected with the pressing plate, the pressing plate being located directly above the pressing position, and the hydraulic telescopic rod being capable of driving the pressing plate to move towards or away from the pressing position. The centering tool comprises: a base; at least two clamping pieces arranged on the base in a circumferential direction and used for clamping the mandrel; 3. The fine filtration press assembly of claim 2, wherein, a driving mechanism connected with the clamping pieces and used for driving the clamping pieces to move towards or away from the center of the base so as to clamp or release the mandrel.

4. The fine filtration press assembly of claim 2, wherein, The side of the clamping piece towards the center of the base is provided with an arc-shaped clamping part.

5. The fine filtration press assembly of any one of claims 1 to 4, wherein, The driving mechanism comprises a hand wheel structure. The precision filter pressing assembly further comprises a driving device used for driving the centering tool to move between the mounting position and the pressing position, the driving device comprising: a servo motor; a lead screw connected with an output shaft of the servo motor; 6. The fine filtration press assembly of any one of claims 1 to 4, wherein, a lead screw nut threadedly connected with the lead screw and connected with the centering tool. The precision filter pressing assembly further comprises: a mounting position proximity switch arranged near the mounting position and used for detecting whether the centering tool reaches the mounting position; 7. The fine filtration press assembly of any one of claims 1 to 4, wherein, a pressing position proximity switch arranged near the pressing position and used for detecting whether the centering tool reaches the pressing position. The precision filter pressing assembly further comprises an infrared laser auxiliary device, the infrared laser auxiliary device comprising: an infrared laser; 8. The fine filtration press assembly of any one of claims 1 to 4, wherein, a mounting support arranged near the mounting position and used for fixing the infrared laser, the infrared laser being used for providing a position reference when a planet carrier is mounted.

9. The fine filtration press assembly of claim 8, wherein, The hydraulic telescopic rod is a piston rod of a hydraulic cylinder, and the hydraulic cylinder is connected with a hydraulic station.

10. The fine filtration press assembly of any one of claims 1 to 4, wherein, The hydraulic station is provided with a pressure sensor used for monitoring the pressure of the hydraulic cylinder. The second support is made of 150 square steel.

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